Class: RubyIndexer::IndexTest

Inherits:
TestCase
  • Object
show all
Defined in:
lib/ruby_indexer/test/index_test.rb

Instance Method Summary collapse

Methods inherited from TestCase

#setup, #teardown

Instance Method Details

#test_accessing_with_colon_colon_prefix ⇒ Object 



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# File 'lib/ruby_indexer/test/index_test.rb', line 74

def test_accessing_with_colon_colon_prefix
  @index.index_single(URI::Generic.from_path(path: "/fake/path/foo.rb"), <<~RUBY)
    class Bar; end

    module Foo
      class Bar
      end

      class Baz
        class Something
        end
      end
    end
  RUBY

  entries = @index["::Foo::Baz::Something"] #: as !nil
  refute_empty(entries)
  assert_equal("Foo::Baz::Something", entries.first&.name)
end

#test_actual_nesting ⇒ Object 



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# File 'lib/ruby_indexer/test/index_test.rb', line 2248

def test_actual_nesting
  assert_equal(["Foo"], Index.actual_nesting([], "Foo"))
  assert_equal(["TopLevel", "Foo"], Index.actual_nesting(["First", "::TopLevel"], "Foo"))
  assert_equal(["TopLevel", "Another", "Foo"], Index.actual_nesting(["::TopLevel", "Another"], "Foo"))
  assert_equal(["TopLevel"], Index.actual_nesting(["First", "::TopLevel"], nil))
end

#test_ancestors_linearization_complex_include_duplication ⇒ Object 



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# File 'lib/ruby_indexer/test/index_test.rb', line 604

def test_ancestors_linearization_complex_include_duplication
  index(<<~RUBY)
    module A; end
    module B
      include A
    end
    module C
      include B
    end

    class Foo
      include A
      include C
    end
  RUBY

  assert_equal(
    [
      "Foo",
      "C",
      "B",
      "A",
      "Object",
      "Kernel",
      "BasicObject",
    ],
    @index.linearized_ancestors_of("Foo"),
  )
end

#test_ancestors_linearization_complex_prepend_duplication ⇒ Object 



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# File 'lib/ruby_indexer/test/index_test.rb', line 574

def test_ancestors_linearization_complex_prepend_duplication
  index(<<~RUBY)
    module A; end
    module B
      prepend A
    end
    module C
      prepend B
    end

    class Foo
      prepend A
      prepend C
    end
  RUBY

  assert_equal(
    [
      "A",
      "B",
      "C",
      "Foo",
      "Object",
      "Kernel",
      "BasicObject",
    ],
    @index.linearized_ancestors_of("Foo"),
  )
end

#test_basic_object_superclass_resolution ⇒ Object 



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# File 'lib/ruby_indexer/test/index_test.rb', line 1336

def test_basic_object_superclass_resolution
  index(<<~RUBY)
    module Foo
      class BasicObject; end

      class Bar; end
      class Baz < BasicObject; end
    end
  RUBY

  assert_equal(["Foo::Bar", "Object", "Kernel", "BasicObject"], @index.linearized_ancestors_of("Foo::Bar"))
  assert_equal(
    ["Foo::Baz", "Foo::BasicObject", "Object", "Kernel", "BasicObject"],
    @index.linearized_ancestors_of("Foo::Baz"),
  )
end

#test_build_non_redundant_name ⇒ Object 



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# File 'lib/ruby_indexer/test/index_test.rb', line 2116

def test_build_non_redundant_name
  assert_equal(
    "Namespace::Foo::Constants",
    @index.send(
      :build_non_redundant_full_name,
      "Namespace::Foo::Constants",
      ["Namespace", "Foo", "InnerNamespace"],
    ),
  )

  assert_equal(
    "Namespace::Foo::Constants",
    @index.send(
      :build_non_redundant_full_name,
      "Namespace::Foo::Constants",
      ["Namespace", "Foo"],
    ),
  )

  assert_equal(
    "Namespace::Foo::Constants",
    @index.send(
      :build_non_redundant_full_name,
      "Foo::Constants",
      ["Namespace", "Foo"],
    ),
  )

  assert_equal(
    "Bar::Namespace::Foo::Constants",
    @index.send(
      :build_non_redundant_full_name,
      "Namespace::Foo::Constants",
      ["Bar"],
    ),
  )

  assert_equal(
    "First::Namespace::Foo::Constants",
    @index.send(
      :build_non_redundant_full_name,
      "Namespace::Foo::Constants",
      ["First", "Namespace", "Foo", "InnerNamespace"],
    ),
  )
end

#test_class_variable_completion_from_singleton_context ⇒ Object 



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# File 'lib/ruby_indexer/test/index_test.rb', line 2219

def test_class_variable_completion_from_singleton_context
  index(<<~RUBY)
    class Foo
      @@hello = 123

      def self.do
      end
    end
  RUBY

  candidates = @index.class_variable_completion_candidates("@@", "Foo::<Class:Foo>")
  refute_empty(candidates)

  assert_equal("@@hello", candidates.first&.name)
end

#test_completion_does_not_duplicate_methods_overridden_by_aliases ⇒ Object 



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# File 'lib/ruby_indexer/test/index_test.rb', line 1667

def test_completion_does_not_duplicate_methods_overridden_by_aliases
  index(<<~RUBY)
    class Foo
      def bar; end
    end

    class Baz < Foo
      alias bar to_s
    end
  RUBY

  entries = @index.method_completion_candidates("bar", "Baz")
  assert_equal(["bar"], entries.map(&:name))
  assert_equal("Baz", entries.first&.owner&.name)
end

#test_completion_does_not_duplicate_overridden_methods ⇒ Object 



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# File 'lib/ruby_indexer/test/index_test.rb', line 1651

def test_completion_does_not_duplicate_overridden_methods
  index(<<~RUBY)
    class Foo
      def bar; end
    end

    class Baz < Foo
      def bar; end
    end
  RUBY

  entries = @index.method_completion_candidates("bar", "Baz")
  assert_equal(["bar"], entries.map(&:name))
  assert_equal("Baz", entries.first&.owner&.name)
end

#test_completion_does_not_include_unresolved_aliases ⇒ Object 



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# File 'lib/ruby_indexer/test/index_test.rb', line 1609

def test_completion_does_not_include_unresolved_aliases
  index(<<~RUBY)
    class Foo
      alias_method :bar, :missing
    end
  RUBY

  assert_empty(@index.method_completion_candidates("bar", "Foo"))
end

#test_constant_completion_candidates_all_possible_constants ⇒ Object 



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# File 'lib/ruby_indexer/test/index_test.rb', line 1991

def test_constant_completion_candidates_all_possible_constants
  index(<<~RUBY)
    XQRK = 3

    module Bar
      XQRK = 2
    end

    module Foo
      XQRK = 1
    end

    module Namespace
      XQRK = 0

      class Baz
        include Foo
        include Bar
      end
    end
  RUBY

  result = @index.constant_completion_candidates("X", ["Namespace", "Baz"])

  result.each do |entries|
    name = entries.first&.name
    assert(entries.all? { |e| e.name == name })
  end

  assert_equal(["Namespace::XQRK", "Bar::XQRK", "XQRK"], result.map { |entries| entries.first&.name })

  result = @index.constant_completion_candidates("::X", ["Namespace", "Baz"])
  assert_equal(["XQRK"], result.map { |entries| entries.first&.name })
end

#test_constant_completion_candidates_for_empty_name ⇒ Object 



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# File 'lib/ruby_indexer/test/index_test.rb', line 2041

def test_constant_completion_candidates_for_empty_name
  index(<<~RUBY)
    module Foo
      Bar = 1
    end

    class Baz
      include Foo
    end
  RUBY

  result = @index.constant_completion_candidates("Baz::", [])
  assert_includes(result.map { |entries| entries.first&.name }, "Foo::Bar")
end

#test_constant_completion_does_not_confuse_uppercase_methods ⇒ Object 



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# File 'lib/ruby_indexer/test/index_test.rb', line 2026

def test_constant_completion_does_not_confuse_uppercase_methods
  index(<<~RUBY)
    class Foo
      def Qux
      end
    end
  RUBY

  candidates = @index.constant_completion_candidates("Q", [])
  refute_includes(candidates.flat_map { |entries| entries.map(&:name) }, "Qux")

  candidates = @index.constant_completion_candidates("Qux", [])
  assert_equal(0, candidates.length)
end

#test_constant_name ⇒ Object 



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# File 'lib/ruby_indexer/test/index_test.rb', line 2255

def test_constant_name
  node = Prism.parse("class var::Foo; end").value.statements.body.first.constant_path
  assert_nil(Index.constant_name(node))

  node = Prism.parse("class ; end").value.statements.body.first.constant_path
  assert_nil(Index.constant_name(node))

  node = Prism.parse("class method_call; end").value.statements.body.first.constant_path
  assert_nil(Index.constant_name(node))

  node = Prism.parse("class Foo; end").value.statements.body.first.constant_path
  assert_equal("Foo", Index.constant_name(node))

  node = Prism.parse(<<~RUBY).value.statements.body.first.constant_path
    class class Foo
    end
    end
  RUBY
  assert_nil(Index.constant_name(node))
end

#test_decorated_parameters ⇒ Object 



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# File 'lib/ruby_indexer/test/index_test.rb', line 1683

def test_decorated_parameters
  index(<<~RUBY)
    class Foo
      def bar(a, b = 1, c: 2)
      end
    end
  RUBY

  methods = @index.resolve_method("bar", "Foo") #: as !nil
  refute_nil(methods)

  entry = methods.first #: as Entry::Method
  assert_equal("(a, b = <default>, c: <default>)", entry.decorated_parameters)
end

#test_decorated_parameters_when_method_has_no_parameters ⇒ Object 



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# File 'lib/ruby_indexer/test/index_test.rb', line 1698

def test_decorated_parameters_when_method_has_no_parameters
  index(<<~RUBY)
    class Foo
      def bar
      end
    end
  RUBY

  methods = @index.resolve_method("bar", "Foo") #: as !nil
  refute_nil(methods)

  entry = methods.first #: as Entry::Method
  assert_equal("()", entry.decorated_parameters)
end

#test_deleting_all_entries_for_a_class ⇒ Object 



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# File 'lib/ruby_indexer/test/index_test.rb', line 26

def test_deleting_all_entries_for_a_class
  @index.index_single(URI::Generic.from_path(path: "/fake/path/foo.rb"), <<~RUBY)
    class Foo
    end
  RUBY

  entries = @index["Foo"] #: as !nil
  assert_equal(1, entries.length)

  @index.delete(URI::Generic.from_path(path: "/fake/path/foo.rb"))
  entries = @index["Foo"]
  assert_nil(entries)
end

#test_deleting_one_entry_for_a_class ⇒ Object 



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# File 'lib/ruby_indexer/test/index_test.rb', line 8

def test_deleting_one_entry_for_a_class
  @index.index_single(URI::Generic.from_path(path: "/fake/path/foo.rb"), <<~RUBY)
    class Foo
    end
  RUBY
  @index.index_single(URI::Generic.from_path(path: "/fake/path/other_foo.rb"), <<~RUBY)
    class Foo
    end
  RUBY

  entries = @index["Foo"] #: as !nil
  assert_equal(2, entries.length)

  @index.delete(URI::Generic.from_path(path: "/fake/path/other_foo.rb"))
  entries = @index["Foo"] #: as !nil
  assert_equal(1, entries.length)
end

#test_duplicate_prepend_include ⇒ Object 



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# File 'lib/ruby_indexer/test/index_test.rb', line 526

def test_duplicate_prepend_include
  index(<<~RUBY)
    module A; end

    class Foo
      prepend A
      include A
    end

    class Bar
      include A
      prepend A
    end
  RUBY

  assert_equal(
    [
      "A",
      "Foo",
      "Object",
      "Kernel",
      "BasicObject",
    ],
    @index.linearized_ancestors_of("Foo"),
  )

  assert_equal(
    [
      "A",
      "Bar",
      "A",
      "Object",
      "Kernel",
      "BasicObject",
    ],
    @index.linearized_ancestors_of("Bar"),
  )
end

#test_entries_for ⇒ Object 



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# File 'lib/ruby_indexer/test/index_test.rb', line 1967

def test_entries_for
  index(<<~RUBY)
    class Foo; end

    module Bar
      def my_def; end
      def self.my_singleton_def; end
    end
  RUBY

  entries = @index.entries_for("file:///fake/path/foo.rb", Entry) #: as !nil
  assert_equal(["Foo", "Bar", "my_def", "Bar::<Class:Bar>", "my_singleton_def"], entries.map(&:name))

  entries = @index.entries_for("file:///fake/path/foo.rb", RubyIndexer::Entry::Namespace) #: as !nil
  assert_equal(["Foo", "Bar", "Bar::<Class:Bar>"], entries.map(&:name))

  entries = @index.entries_for("file:///fake/path/foo.rb") #: as !nil
  assert_equal(["Foo", "Bar", "my_def", "Bar::<Class:Bar>", "my_singleton_def"], entries.map(&:name))
end

#test_entries_for_returns_nil_if_no_matches ⇒ Object 



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# File 'lib/ruby_indexer/test/index_test.rb', line 1987

def test_entries_for_returns_nil_if_no_matches
  assert_nil(@index.entries_for("non_existing_file.rb", Entry::Namespace))
end

#test_extend_self ⇒ Object 



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# File 'lib/ruby_indexer/test/index_test.rb', line 1764

def test_extend_self
  @index.index_single(URI::Generic.from_path(path: "/fake/path/foo.rb"), <<~RUBY)
    module Foo
      def bar
      end

      extend self

      def baz
      end
    end
  RUBY

  ["bar", "baz"].product(["Foo", "Foo::<Class:Foo>"]).each do |method, receiver|
    entry = @index.resolve_method(method, receiver)&.first #: as !nil
    refute_nil(entry)
    assert_equal(method, entry.name)
  end

  assert_equal(
    [
      "Foo::<Class:Foo>",
      "Foo",
      "Module",
      "Object",
      "Kernel",
      "BasicObject",
    ],
    @index.linearized_ancestors_of("Foo::<Class:Foo>"),
  )
end

#test_first_unqualified_const ⇒ Object 



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# File 'lib/ruby_indexer/test/index_test.rb', line 1619

def test_first_unqualified_const
  index(<<~RUBY)
    module Foo
      class Bar; end
    end

    module Baz
      class Bar; end
    end
  RUBY

  entry = @index.first_unqualified_const("Bar")&.first #: as !nil
  assert_equal("Foo::Bar", entry.name)
end

#test_first_unqualified_const_prefers_exact_matches ⇒ Object 



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# File 'lib/ruby_indexer/test/index_test.rb', line 1634

def test_first_unqualified_const_prefers_exact_matches
  index(<<~RUBY)
    module Foo
      class ParseResultType
      end
    end

    module Namespace
      class Type
      end
    end
  RUBY

  entry = @index.first_unqualified_const("Type")&.first #: as !nil
  assert_equal("Namespace::Type", entry.name)
end

#test_follow_alias_namespace ⇒ Object 



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# File 'lib/ruby_indexer/test/index_test.rb', line 2056

def test_follow_alias_namespace
  index(<<~RUBY)
    module First
      module Second
        class Foo
        end
      end
    end

    module Namespace
      Second = First::Second
    end
  RUBY

  real_namespace = @index.follow_aliased_namespace("Namespace::Second")
  assert_equal("First::Second", real_namespace)
end

#test_fuzzy_search ⇒ Object 



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# File 'lib/ruby_indexer/test/index_test.rb', line 94

def test_fuzzy_search
  @index.index_single(URI::Generic.from_path(path: "/fake/path/foo.rb"), <<~RUBY)
    class Zws; end

    module Qtl
      class Zws
      end

      class Zwo
        class Something
        end
      end
    end
  RUBY

  result = @index.fuzzy_search("Zws")
  assert_equal(2, result.length)
  assert_equal(["Zws", "Qtl::Zwo::Something"], result.map(&:name))

  result = @index.fuzzy_search("qtlzwssomeking")
  assert_equal(5, result.length)
  assert_equal(["Qtl::Zwo::Something", "Qtl::Zws", "Qtl::Zwo", "Qtl", "Zws"], result.map(&:name))

  result = @index.fuzzy_search("QltZwo")
  assert_equal(4, result.length)
  assert_equal(["Qtl::Zwo", "Qtl::Zws", "Qtl::Zwo::Something", "Qtl"], result.map(&:name))
end

#test_handle_change_clears_ancestor_cache_if_parent_class_changed ⇒ Object 



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# File 'lib/ruby_indexer/test/index_test.rb', line 877

def test_handle_change_clears_ancestor_cache_if_parent_class_changed
  Dir.mktmpdir do |dir|
    Dir.chdir(dir) do
      # Write the original file
      File.write(File.join(dir, "foo.rb"), <<~RUBY)
        class Foo
        end

        class Bar < Foo
        end
      RUBY

      uri = URI::Generic.from_path(path: File.join(dir, "foo.rb"))
      @index.index_file(uri)

      assert_equal(["Bar", "Foo", "Object", "Kernel", "BasicObject"], @index.linearized_ancestors_of("Bar"))

      # Remove include to invalidate the ancestor tree
      File.write(File.join(dir, "foo.rb"), <<~RUBY)
        class Foo
        end

        class Bar
        end
      RUBY

      path = uri.full_path #: as !nil
      @index.handle_change(uri, File.read(path))
      assert_empty(@index.instance_variable_get(:@ancestors))
      assert_equal(["Bar", "Object", "Kernel", "BasicObject"], @index.linearized_ancestors_of("Bar"))
    end
  end
end

#test_handle_change_clears_ancestor_cache_if_tree_changed ⇒ Object 



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# File 'lib/ruby_indexer/test/index_test.rb', line 804

def test_handle_change_clears_ancestor_cache_if_tree_changed
  Dir.mktmpdir do |dir|
    Dir.chdir(dir) do
      # Write the original file
      File.write(File.join(dir, "foo.rb"), <<~RUBY)
        module Foo
        end

        class Bar
          include Foo
        end
      RUBY

      uri = URI::Generic.from_path(path: File.join(dir, "foo.rb"))
      @index.index_file(uri)

      assert_equal(["Bar", "Foo", "Object", "Kernel", "BasicObject"], @index.linearized_ancestors_of("Bar"))

      # Remove include to invalidate the ancestor tree
      File.write(File.join(dir, "foo.rb"), <<~RUBY)
        module Foo
        end

        class Bar
        end
      RUBY

      path = uri.full_path #: as !nil
      @index.handle_change(uri, File.read(path))
      assert_empty(@index.instance_variable_get(:@ancestors))
      assert_equal(["Bar", "Object", "Kernel", "BasicObject"], @index.linearized_ancestors_of("Bar"))
    end
  end
end

#test_handle_change_does_not_clear_ancestor_cache_if_tree_not_changed ⇒ Object 



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# File 'lib/ruby_indexer/test/index_test.rb', line 839

def test_handle_change_does_not_clear_ancestor_cache_if_tree_not_changed
  Dir.mktmpdir do |dir|
    Dir.chdir(dir) do
      # Write the original file
      File.write(File.join(dir, "foo.rb"), <<~RUBY)
        module Foo
        end

        class Bar
          include Foo
        end
      RUBY

      uri = URI::Generic.from_path(path: File.join(dir, "foo.rb"))
      @index.index_file(uri)

      assert_equal(["Bar", "Foo", "Object", "Kernel", "BasicObject"], @index.linearized_ancestors_of("Bar"))

      # Remove include to invalidate the ancestor tree
      File.write(File.join(dir, "foo.rb"), <<~RUBY)
        module Foo
        end

        class Bar
          include Foo

          def baz; end
        end
      RUBY

      path = uri.full_path #: as !nil
      @index.handle_change(uri, File.read(path))
      refute_empty(@index.instance_variable_get(:@ancestors))
      assert_equal(["Bar", "Foo", "Object", "Kernel", "BasicObject"], @index.linearized_ancestors_of("Bar"))
    end
  end
end

#test_index_can_handle_entries_from_untitled_scheme ⇒ Object 



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# File 'lib/ruby_indexer/test/index_test.rb', line 2171

def test_index_can_handle_entries_from_untitled_scheme
  uri = URI("untitled:Untitled-1")

  index(<<~RUBY, uri: uri)
    class Foo
    end
  RUBY

  entry = @index["Foo"]&.first #: as !nil
  refute_nil(entry, "Expected indexer to be able to handle unsaved URIs")
  assert_equal("untitled:Untitled-1", entry.uri.to_s)
  assert_equal("Untitled-1", entry.file_name)
  assert_nil(entry.file_path)

  @index.handle_change(uri, <<~RUBY)
    # I added this comment!
    class Foo
    end
  RUBY

  entry = @index["Foo"]&.first #: as !nil
  refute_nil(entry, "Expected indexer to be able to handle unsaved URIs")
  assert_equal("I added this comment!", entry.comments)
end

#test_index_resolve ⇒ Object 



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# File 'lib/ruby_indexer/test/index_test.rb', line 40

def test_index_resolve
  @index.index_single(URI::Generic.from_path(path: "/fake/path/foo.rb"), <<~RUBY)
    class Bar; end

    module Foo
      class Bar
      end

      class Baz
        class Something
        end
      end
    end
  RUBY

  entries = @index.resolve("Something", ["Foo", "Baz"]) #: as !nil
  refute_empty(entries)
  assert_equal("Foo::Baz::Something", entries.first&.name)

  entries = @index.resolve("Bar", ["Foo"]) #: as !nil
  refute_empty(entries)
  assert_equal("Foo::Bar", entries.first&.name)

  entries = @index.resolve("Bar", ["Foo", "Baz"]) #: as !nil
  refute_empty(entries)
  assert_equal("Foo::Bar", entries.first&.name)

  entries = @index.resolve("Foo::Bar", ["Foo", "Baz"]) #: as !nil
  refute_empty(entries)
  assert_equal("Foo::Bar", entries.first&.name)

  assert_nil(@index.resolve("DoesNotExist", ["Foo"]))
end

#test_index_single_does_not_fail_for_non_existing_file ⇒ Object 



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# File 'lib/ruby_indexer/test/index_test.rb', line 364

def test_index_single_does_not_fail_for_non_existing_file
  @index.index_file(URI::Generic.from_path(path: "/fake/path/foo.rb"))
  entries_after_indexing = @index.names
  assert_equal(@default_indexed_entries.keys, entries_after_indexing)
end

#test_index_single_ignores_directories ⇒ Object 



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# File 'lib/ruby_indexer/test/index_test.rb', line 122

def test_index_single_ignores_directories
  path = "#{Dir.pwd}/lib/this_is_a_dir.rb"
  FileUtils.mkdir(path)

  begin
    @index.index_file(URI::Generic.from_path(path: path))
  ensure
    FileUtils.rm_r(path)
  end
end

#test_indexing_prism_fixtures_succeeds ⇒ Object 



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# File 'lib/ruby_indexer/test/index_test.rb', line 349

def test_indexing_prism_fixtures_succeeds
  unless Dir.exist?("test/fixtures/prism/test/prism/fixtures")
    raise "Prism fixtures not found. Run `git submodule update --init` to fetch them."
  end

  fixtures = Dir.glob("#{Dir.pwd}/test/fixtures/prism/test/prism/fixtures/**/*.txt")

  fixtures.each do |fixture|
    uri = URI::Generic.from_path(path: fixture)
    @index.index_file(uri)
  end

  refute_empty(@index)
end

#test_instance_variable_completion_in_singleton_contexts ⇒ Object 



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# File 'lib/ruby_indexer/test/index_test.rb', line 1452

def test_instance_variable_completion_in_singleton_contexts
  @index.index_single(URI::Generic.from_path(path: "/fake/path/foo.rb"), <<~RUBY)
    module Foo
      class Bar
        @a = 123

        class << self
          def hello
            @b = 123
          end

          @c = 123
        end
      end
    end
  RUBY

  entries = @index.instance_variable_completion_candidates("@", "Foo::Bar::<Class:Bar>").map(&:name)
  assert_includes(entries, "@a")
  assert_includes(entries, "@b")
end

#test_instance_variable_completion_returns_class_variables_too ⇒ Object 



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# File 'lib/ruby_indexer/test/index_test.rb', line 2196

def test_instance_variable_completion_returns_class_variables_too
  index(<<~RUBY)
    class Parent
      @@abc = 123
    end

    class Child < Parent
      @@adf = 123

      def self.do
      end
    end
  RUBY

  adf, abc = @index.instance_variable_completion_candidates("@", "Child::<Class:Child>")

  refute_nil(abc)
  refute_nil(adf)

  assert_equal("@@abc", abc&.name)
  assert_equal("@@adf", adf&.name)
end

#test_instance_variables_completions_from_different_owners_with_conflicting_names ⇒ Object 



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# File 'lib/ruby_indexer/test/index_test.rb', line 1249

def test_instance_variables_completions_from_different_owners_with_conflicting_names
  index(<<~RUBY)
    class Foo
      def initialize
        @bar = 1
      end
    end

    class Bar
      def initialize
        @bar = 2
      end
    end
  RUBY

  entry = @index.instance_variable_completion_candidates("@", "Bar").first #: as !nil
  assert_equal("@bar", entry.name)
  assert_equal("Bar", entry.owner&.name)
end

#test_linearized_ancestors ⇒ Object 



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# File 'lib/ruby_indexer/test/index_test.rb', line 411

def test_linearized_ancestors
  index(<<~RUBY)
    module A; end
    module B; end
    module C; end

    module D
      include A
    end

    module E
      prepend B
    end

    module F
      include C
      include A
    end

    class Bar
      prepend F
    end

    class Foo < Bar
      include E
      prepend D
    end
  RUBY

  # Object, Kernel and BasicObject are intentionally commented out for now until we develop a strategy for indexing
  # declarations made in C code
  assert_equal(
    [
      "D",
      "A",
      "Foo",
      "B",
      "E",
      "F",
      "A",
      "C",
      "Bar",
      "Object",
      "Kernel",
      "BasicObject",
    ],
    @index.linearized_ancestors_of("Foo"),
  )
end

#test_linearized_ancestors_basic_ordering ⇒ Object 



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# File 'lib/ruby_indexer/test/index_test.rb', line 370

def test_linearized_ancestors_basic_ordering
  index(<<~RUBY)
    module A; end
    module B; end

    class Foo
      prepend A
      prepend B
    end

    class Bar
      include A
      include B
    end
  RUBY

  assert_equal(
    [
      "B",
      "A",
      "Foo",
      "Object",
      "Kernel",
      "BasicObject",
    ],
    @index.linearized_ancestors_of("Foo"),
  )

  assert_equal(
    [
      "Bar",
      "B",
      "A",
      "Object",
      "Kernel",
      "BasicObject",
    ],
    @index.linearized_ancestors_of("Bar"),
  )
end

#test_linearized_ancestors_duplicates ⇒ Object 



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# File 'lib/ruby_indexer/test/index_test.rb', line 461

def test_linearized_ancestors_duplicates
  index(<<~RUBY)
    module A; end
    module B
      include A
    end

    class Foo
      include B
      include A
    end

    class Bar
      prepend B
      prepend A
    end
  RUBY

  assert_equal(
    [
      "Foo",
      "B",
      "A",
      "Object",
      "Kernel",
      "BasicObject",
    ],
    @index.linearized_ancestors_of("Foo"),
  )

  assert_equal(
    [
      "B",
      "A",
      "Bar",
      "Object",
      "Kernel",
      "BasicObject",
    ],
    @index.linearized_ancestors_of("Bar"),
  )
end

#test_linearizing_a_module_singleton_class ⇒ Object 



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# File 'lib/ruby_indexer/test/index_test.rb', line 1867

def test_linearizing_a_module_singleton_class
  @index.index_single(URI::Generic.from_path(path: "/fake/path/foo.rb"), <<~RUBY)
    module A; end
  RUBY

  assert_equal(
    [
      "A::<Class:A>",
      "Module",
      "Object",
      "Kernel",
      "BasicObject",
    ],
    @index.linearized_ancestors_of("A::<Class:A>"),
  )
end

#test_linearizing_a_singleton_class_with_no_attached ⇒ Object 



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# File 'lib/ruby_indexer/test/index_test.rb', line 1884

def test_linearizing_a_singleton_class_with_no_attached
  assert_raises(Index::NonExistingNamespaceError) do
    @index.linearized_ancestors_of("A::<Class:A>")
  end
end

#test_linearizing_ancestors_for_classes_with_overridden_parents ⇒ Object 



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# File 'lib/ruby_indexer/test/index_test.rb', line 731

def test_linearizing_ancestors_for_classes_with_overridden_parents
  index(<<~RUBY)
    # Find the re-open of a class first, without specifying a parent
    class Child
    end

    # Now, find the actual definition of the class, which includes a parent
    class Parent; end
    class Child < Parent
    end
  RUBY

  assert_equal(
    [
      "Child",
      "Parent",
      "Object",
      "Kernel",
      "BasicObject",
    ],
    @index.linearized_ancestors_of("Child"),
  )
end

#test_linearizing_ancestors_for_non_existing_namespaces ⇒ Object 



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# File 'lib/ruby_indexer/test/index_test.rb', line 665

def test_linearizing_ancestors_for_non_existing_namespaces
  index(<<~RUBY)
    def Bar(a); end
  RUBY

  assert_raises(Index::NonExistingNamespaceError) do
    @index.linearized_ancestors_of("Foo")
  end

  assert_raises(Index::NonExistingNamespaceError) do
    @index.linearized_ancestors_of("Bar")
  end
end

#test_linearizing_ancestors_handles_circular_parent_class ⇒ Object 



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# File 'lib/ruby_indexer/test/index_test.rb', line 565

def test_linearizing_ancestors_handles_circular_parent_class
  index(<<~RUBY)
    class Foo < Foo
    end
  RUBY

  assert_equal(["Foo"], @index.linearized_ancestors_of("Foo"))
end

#test_linearizing_ancestors_is_cached ⇒ Object 



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# File 'lib/ruby_indexer/test/index_test.rb', line 504

def test_linearizing_ancestors_is_cached
  index(<<~RUBY)
    module C; end
    module A; end
    module B
      include A
    end

    class Foo
      include B
      include A
    end
  RUBY

  @index.linearized_ancestors_of("Foo")
  ancestors = @index.instance_variable_get(:@ancestors)
  assert(ancestors.key?("Foo"))
  assert(ancestors.key?("A"))
  assert(ancestors.key?("B"))
  refute(ancestors.key?("C"))
end

#test_linearizing_ancestors_that_need_to_be_resolved ⇒ Object 



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# File 'lib/ruby_indexer/test/index_test.rb', line 634

def test_linearizing_ancestors_that_need_to_be_resolved
  index(<<~RUBY)
    module Foo
      module Baz
      end
      module Qux
      end

      class Something; end

      class Bar < Something
        include Baz
        prepend Qux
      end
    end
  RUBY

  assert_equal(
    [
      "Foo::Qux",
      "Foo::Bar",
      "Foo::Baz",
      "Foo::Something",
      "Object",
      "Kernel",
      "BasicObject",
    ],
    @index.linearized_ancestors_of("Foo::Bar"),
  )
end

#test_linearizing_circular_aliased_dependency ⇒ Object 



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# File 'lib/ruby_indexer/test/index_test.rb', line 716

def test_linearizing_circular_aliased_dependency
  index(<<~RUBY)
    module A
    end

    ALIAS = A

    module A
      include ALIAS
    end
  RUBY

  assert_equal(["A", "ALIAS"], @index.linearized_ancestors_of("A"))
end

#test_linearizing_circular_ancestors ⇒ Object 



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# File 'lib/ruby_indexer/test/index_test.rb', line 679

def test_linearizing_circular_ancestors
  index(<<~RUBY)
    module M1
      include M2
    end

    module M2
      include M1
    end

    module A1
      include A2
    end

    module A2
      include A3
    end

    module A3
      include A1
    end

    class Foo < Foo
      include Foo
    end

    module Bar
      include Bar
    end
  RUBY

  assert_equal(["M2", "M1"], @index.linearized_ancestors_of("M2"))
  assert_equal(["A3", "A1", "A2"], @index.linearized_ancestors_of("A3"))
  assert_equal(["Foo"], @index.linearized_ancestors_of("Foo"))
  assert_equal(["Bar"], @index.linearized_ancestors_of("Bar"))
end

#test_linearizing_singleton_ancestors ⇒ Object 



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# File 'lib/ruby_indexer/test/index_test.rb', line 1796

def test_linearizing_singleton_ancestors
  @index.index_single(URI::Generic.from_path(path: "/fake/path/foo.rb"), <<~RUBY)
    module First
    end

    module Second
      include First
    end

    module Foo
      class Bar
        class << self
          class Baz
            extend Second

            class << self
              include First
            end
          end
        end
      end
    end
  RUBY

  assert_equal(
    [
      "Foo::Bar::<Class:Bar>::Baz::<Class:Baz>",
      "Second",
      "First",
      "Object::<Class:Object>",
      "BasicObject::<Class:BasicObject>",
      "Class",
      "Module",
      "Object",
      "Kernel",
      "BasicObject",
    ],
    @index.linearized_ancestors_of("Foo::Bar::<Class:Bar>::Baz::<Class:Baz>"),
  )
end

#test_linearizing_singleton_ancestors_of_singleton_when_class_has_parent ⇒ Object 



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# File 'lib/ruby_indexer/test/index_test.rb', line 1713

def test_linearizing_singleton_ancestors_of_singleton_when_class_has_parent
  @index.index_single(URI::Generic.from_path(path: "/fake/path/foo.rb"), <<~RUBY)
    class Foo; end

    class Bar < Foo
    end

    class Baz < Bar
      class << self
        class << self
        end
      end
    end
  RUBY

  assert_equal(
    [
      "Baz::<Class:Baz>::<Class:<Class:Baz>>",
      "Bar::<Class:Bar>::<Class:<Class:Bar>>",
      "Foo::<Class:Foo>::<Class:<Class:Foo>>",
      "Object::<Class:Object>::<Class:<Class:Object>>",
      "BasicObject::<Class:BasicObject>::<Class:<Class:BasicObject>>",
      "Class::<Class:Class>",
      "Module::<Class:Module>",
      "Object::<Class:Object>",
      "BasicObject::<Class:BasicObject>",
      "Class",
      "Module",
      "Object",
      "Kernel",
      "BasicObject",
    ],
    @index.linearized_ancestors_of("Baz::<Class:Baz>::<Class:<Class:Baz>>"),
  )
end

#test_linearizing_singleton_ancestors_when_class_has_parent ⇒ Object 



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# File 'lib/ruby_indexer/test/index_test.rb', line 1837

def test_linearizing_singleton_ancestors_when_class_has_parent
  @index.index_single(URI::Generic.from_path(path: "/fake/path/foo.rb"), <<~RUBY)
    class Foo; end

    class Bar < Foo
    end

    class Baz < Bar
      class << self
      end
    end
  RUBY

  assert_equal(
    [
      "Baz::<Class:Baz>",
      "Bar::<Class:Bar>",
      "Foo::<Class:Foo>",
      "Object::<Class:Object>",
      "BasicObject::<Class:BasicObject>",
      "Class",
      "Module",
      "Object",
      "Kernel",
      "BasicObject",
    ],
    @index.linearized_ancestors_of("Baz::<Class:Baz>"),
  )
end

#test_linearizing_singleton_object ⇒ Object 



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# File 'lib/ruby_indexer/test/index_test.rb', line 1749

def test_linearizing_singleton_object
  assert_equal(
    [
      "Object::<Class:Object>",
      "BasicObject::<Class:BasicObject>",
      "Class",
      "Module",
      "Object",
      "Kernel",
      "BasicObject",
    ],
    @index.linearized_ancestors_of("Object::<Class:Object>"),
  )
end

#test_linearizing_singleton_parent_class_with_namespace ⇒ Object 



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# File 'lib/ruby_indexer/test/index_test.rb', line 1890

def test_linearizing_singleton_parent_class_with_namespace
  index(<<~RUBY)
    class ActiveRecord::Base; end

    class User < ActiveRecord::Base
    end
  RUBY

  assert_equal(
    [
      "User::<Class:User>",
      "ActiveRecord::Base::<Class:Base>",
      "Object::<Class:Object>",
      "BasicObject::<Class:BasicObject>",
      "Class",
      "Module",
      "Object",
      "Kernel",
      "BasicObject",
    ],
    @index.linearized_ancestors_of("User::<Class:User>"),
  )
end

#test_object_superclass_indexing_and_resolution_with_reopened_basic_object_class ⇒ Object 



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# File 'lib/ruby_indexer/test/index_test.rb', line 1307

def test_object_superclass_indexing_and_resolution_with_reopened_basic_object_class
  index(<<~RUBY)
    class BasicObject; end
  RUBY

  entries = @index["BasicObject"] #: as !nil
  assert_equal(2, entries.length)
  reopened_entry = entries.last #: as Entry::Class
  assert_nil(reopened_entry.parent_class)
  assert_equal(["BasicObject"], @index.linearized_ancestors_of("BasicObject"))
end

#test_object_superclass_indexing_and_resolution_with_reopened_object_class ⇒ Object 



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# File 'lib/ruby_indexer/test/index_test.rb', line 1295

def test_object_superclass_indexing_and_resolution_with_reopened_object_class
  index(<<~RUBY)
    class Object; end
  RUBY

  entries = @index["Object"] #: as !nil
  assert_equal(2, entries.length)
  reopened_entry = entries.last #: as Entry::Class
  assert_equal("::BasicObject", reopened_entry.parent_class)
  assert_equal(["Object", "Kernel", "BasicObject"], @index.linearized_ancestors_of("Object"))
end

#test_object_superclass_resolution ⇒ Object 



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# File 'lib/ruby_indexer/test/index_test.rb', line 1319

def test_object_superclass_resolution
  index(<<~RUBY)
    module Foo
      class Object; end

      class Bar; end
      class Baz < Object; end
    end
  RUBY

  assert_equal(["Foo::Bar", "Object", "Kernel", "BasicObject"], @index.linearized_ancestors_of("Foo::Bar"))
  assert_equal(
    ["Foo::Baz", "Foo::Object", "Object", "Kernel", "BasicObject"],
    @index.linearized_ancestors_of("Foo::Baz"),
  )
end

#test_only_aliases_for_the_right_owner_are_resolved ⇒ Object 



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# File 'lib/ruby_indexer/test/index_test.rb', line 1582

def test_only_aliases_for_the_right_owner_are_resolved
  index(<<~RUBY)
    class Foo
      attr_reader :name
      alias_method :decorated_name, :name
    end

    class Bar
      alias_method :decorated_name, :to_s
    end
  RUBY

  methods = @index.resolve_method("decorated_name", "Foo") #: as !nil
  refute_nil(methods)

  entry = methods.first #: as Entry::MethodAlias
  assert_kind_of(Entry::MethodAlias, entry)

  target = entry.target
  assert_equal("name", target.name)
  assert_kind_of(Entry::Accessor, target)
  assert_equal("Foo", target.owner&.name)

  other_decorated_name = @index["decorated_name"]&.find { |e| e.is_a?(Entry::UnresolvedMethodAlias) }
  assert_kind_of(Entry::UnresolvedMethodAlias, other_decorated_name)
end

#test_prefix_search_for_methods ⇒ Object 



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# File 'lib/ruby_indexer/test/index_test.rb', line 333

def test_prefix_search_for_methods
  index(<<~RUBY)
    module Foo
      module Bar
        def qzx; end
      end
    end
  RUBY

  entries = @index.prefix_search("qz")
  refute_empty(entries)

  entry = entries.first&.first #: as !nil
  assert_equal("qzx", entry.name)
end

#test_prevents_multiple_calls_to_index_all ⇒ Object 



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# File 'lib/ruby_indexer/test/index_test.rb', line 2163

def test_prevents_multiple_calls_to_index_all
  @index.index_all

  assert_raises(Index::IndexNotEmptyError) do
    @index.index_all
  end
end

#test_resolve_class_variable_in_singleton_context ⇒ Object 



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# File 'lib/ruby_indexer/test/index_test.rb', line 2235

def test_resolve_class_variable_in_singleton_context
  index(<<~RUBY)
    class Foo
      @@hello = 123
    end
  RUBY

  candidates = @index.resolve_class_variable("@@hello", "Foo::<Class:Foo>") #: as !nil
  refute_empty(candidates)

  assert_equal("@@hello", candidates.first&.name)
end

#test_resolve_method_attribute ⇒ Object 



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# File 'lib/ruby_indexer/test/index_test.rb', line 258

def test_resolve_method_attribute
  index(<<~RUBY)
    class Foo
      attr_reader :bar
    end
  RUBY

  entries = @index.resolve_method("bar", "Foo") #: as !nil
  assert_equal("bar", entries.first&.name)
  owner = entries.first&.owner #: as !nil
  assert_equal("Foo", owner.name)
end

#test_resolve_method_inherited_only ⇒ Object 



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# File 'lib/ruby_indexer/test/index_test.rb', line 297

def test_resolve_method_inherited_only
  index(<<~RUBY)
    class Bar
      def baz; end
    end

    class Foo < Bar
      def baz; end
    end
  RUBY

  entry = @index.resolve_method("baz", "Foo", inherited_only: true)&.first #: as !nil
  assert_equal("Bar", entry.owner&.name)
end

#test_resolve_method_inherited_only_for_prepended_module ⇒ Object 



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# File 'lib/ruby_indexer/test/index_test.rb', line 312

def test_resolve_method_inherited_only_for_prepended_module
  index(<<~RUBY)
    module Bar
      def baz
        super
      end
    end

    class Foo
      prepend Bar

      def baz; end
    end
  RUBY

  # This test is just to document the fact that we don't yet support resolving inherited methods for modules that
  # are prepended. The only way to support this is to find all namespaces that have the module a subtype, so that we
  # can show the results for everywhere the module has been prepended.
  assert_nil(@index.resolve_method("baz", "Bar", inherited_only: true))
end

#test_resolve_method_with_class_name_conflict ⇒ Object 



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# File 'lib/ruby_indexer/test/index_test.rb', line 242

def test_resolve_method_with_class_name_conflict
  index(<<~RUBY)
    class Array
    end

    class Foo
      def Array(*args); end
    end
  RUBY

  entries = @index.resolve_method("Array", "Foo") #: as !nil
  assert_equal("Array", entries.first&.name)
  owner = entries.first&.owner #: as !nil
  assert_equal("Foo", owner.name)
end

#test_resolve_method_with_known_receiver ⇒ Object 



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# File 'lib/ruby_indexer/test/index_test.rb', line 227

def test_resolve_method_with_known_receiver
  index(<<~RUBY)
    module Foo
      module Bar
        def baz; end
      end
    end
  RUBY

  entries = @index.resolve_method("baz", "Foo::Bar") #: as !nil
  assert_equal("baz", entries.first&.name)
  owner = entries.first&.owner #: as !nil
  assert_equal("Foo::Bar", owner.name)
end

#test_resolve_method_with_two_definitions ⇒ Object 



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# File 'lib/ruby_indexer/test/index_test.rb', line 271

def test_resolve_method_with_two_definitions
  index(<<~RUBY)
    class Foo
      # Hello from first `bar`
      def bar; end
    end

    class Foo
      # Hello from second `bar`
      def bar; end
    end
  RUBY

  first_entry, second_entry = @index.resolve_method("bar", "Foo") #: as !nil

  assert_equal("bar", first_entry&.name)
  owner = first_entry&.owner #: as !nil
  assert_equal("Foo", owner.name)
  assert_includes(first_entry&.comments, "Hello from first `bar`")

  assert_equal("bar", second_entry&.name)
  owner = second_entry&.owner #: as !nil
  assert_equal("Foo", owner.name)
  assert_includes(second_entry&.comments, "Hello from second `bar`")
end

#test_resolve_normalizes_top_level_names ⇒ Object 



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# File 'lib/ruby_indexer/test/index_test.rb', line 166

def test_resolve_normalizes_top_level_names
  @index.index_single(URI::Generic.from_path(path: "/fake/path/foo.rb", load_path_entry: "/fake"), <<~RUBY)
    class Bar; end

    module Foo
      class Bar; end
    end
  RUBY

  entries = @index.resolve("::Foo::Bar", []) #: as !nil
  refute_nil(entries)

  assert_equal("Foo::Bar", entries.first&.name)

  entries = @index.resolve("::Bar", ["Foo"]) #: as !nil
  refute_nil(entries)

  assert_equal("Bar", entries.first&.name)
end

#test_resolving_a_qualified_reference ⇒ Object 



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# File 'lib/ruby_indexer/test/index_test.rb', line 1269

def test_resolving_a_qualified_reference
  index(<<~RUBY)
    class Base
      module Third
        CONST = 1
      end
    end

    class Foo
      module Third
        CONST = 2
      end

      class Second < Base
      end
    end
  RUBY

  foo_entry = @index.resolve("Third::CONST", ["Foo"])&.first #: as !nil
  assert_equal(9, foo_entry.location.start_line)
end

#test_resolving_alias_to_existing_constant_from_inner_namespace ⇒ Object 



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# File 'lib/ruby_indexer/test/index_test.rb', line 2092

def test_resolving_alias_to_existing_constant_from_inner_namespace
  index(<<~RUBY)
    module Parent
      CONST = 123
    end

    module First
      module Namespace
        class Foo
          include Parent

          module InnerNamespace
            Constants = Namespace::Foo::CONST
          end
        end
      end
    end
  RUBY

  entry = @index.resolve("Namespace::Foo::CONST", ["First", "Namespace", "Foo", "InnerNamespace"])&.first #: as !nil
  assert_equal("Parent::CONST", entry.name)
  assert_instance_of(Entry::Constant, entry)
end

#test_resolving_alias_to_non_existing_namespace ⇒ Object 



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# File 'lib/ruby_indexer/test/index_test.rb', line 2074

def test_resolving_alias_to_non_existing_namespace
  index(<<~RUBY)
    module Namespace
      class Foo
        module InnerNamespace
          Constants = Namespace::Foo::Constants
        end
      end
    end
  RUBY

  entry = @index.resolve("Constants", ["Namespace", "Foo", "InnerNamespace"])&.first
  assert_instance_of(Entry::UnresolvedConstantAlias, entry)

  entry = @index.resolve("Namespace::Foo::Constants", ["Namespace", "Foo", "InnerNamespace"])&.first
  assert_nil(entry)
end

#test_resolving_aliases_to_non_existing_constants_with_conflicting_names ⇒ Object 



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# File 'lib/ruby_indexer/test/index_test.rb', line 186

def test_resolving_aliases_to_non_existing_constants_with_conflicting_names
  @index.index_single(URI::Generic.from_path(path: "/fake/path/foo.rb", load_path_entry: "/fake"), <<~RUBY)
    class Bar
    end

    module Foo
      class Bar < self
        BAZ = ::Bar::BAZ
      end
    end
  RUBY

  entry = @index.resolve("BAZ", ["Foo", "Bar"])&.first
  refute_nil(entry)

  assert_instance_of(Entry::UnresolvedConstantAlias, entry)
end

#test_resolving_an_inherited_method ⇒ Object 



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# File 'lib/ruby_indexer/test/index_test.rb', line 755

def test_resolving_an_inherited_method
  index(<<~RUBY)
    module Foo
      def baz; end
    end

    class Bar
      def qux; end
    end

    class Wow < Bar
      include Foo
    end
  RUBY

  entry = @index.resolve_method("baz", "Wow")&.first #: as !nil
  assert_equal("baz", entry.name)
  assert_equal("Foo", entry.owner&.name)

  entry = @index.resolve_method("qux", "Wow")&.first #: as !nil
  assert_equal("qux", entry.name)
  assert_equal("Bar", entry.owner&.name)
end

#test_resolving_an_inherited_method_lands_on_first_match ⇒ Object 



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# File 'lib/ruby_indexer/test/index_test.rb', line 779

def test_resolving_an_inherited_method_lands_on_first_match
  index(<<~RUBY)
    module Foo
      def qux; end
    end

    class Bar
      def qux; end
    end

    class Wow < Bar
      prepend Foo

      def qux; end
    end
  RUBY

  entries = @index.resolve_method("qux", "Wow") #: as !nil
  assert_equal(1, entries.length)

  entry = entries.first #: as !nil
  assert_equal("qux", entry.name)
  assert_equal("Foo", entry.owner&.name)
end

#test_resolving_circular_alias ⇒ Object 



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# File 'lib/ruby_indexer/test/index_test.rb', line 1043

def test_resolving_circular_alias
  index(<<~RUBY)
    module Namespace
      FOO = BAR
      BAR = FOO
    end
  RUBY

  foo_entry = @index.resolve("FOO", ["Namespace"])&.first #: as !nil
  assert_equal(2, foo_entry.location.start_line)
  assert_instance_of(Entry::ConstantAlias, foo_entry)

  bar_entry = @index.resolve("BAR", ["Namespace"])&.first #: as !nil
  assert_equal(3, bar_entry.location.start_line)
  assert_instance_of(Entry::ConstantAlias, bar_entry)
end

#test_resolving_circular_alias_three_levels ⇒ Object 



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# File 'lib/ruby_indexer/test/index_test.rb', line 1060

def test_resolving_circular_alias_three_levels
  index(<<~RUBY)
    module Namespace
      FOO = BAR
      BAR = BAZ
      BAZ = FOO
    end
  RUBY

  foo_entry = @index.resolve("FOO", ["Namespace"])&.first #: as !nil
  assert_equal(2, foo_entry.location.start_line)
  assert_instance_of(Entry::ConstantAlias, foo_entry)

  bar_entry = @index.resolve("BAR", ["Namespace"])&.first #: as !nil
  assert_equal(3, bar_entry.location.start_line)
  assert_instance_of(Entry::ConstantAlias, bar_entry)

  baz_entry = @index.resolve("BAZ", ["Namespace"])&.first #: as !nil
  assert_equal(4, baz_entry.location.start_line)
  assert_instance_of(Entry::ConstantAlias, baz_entry)
end

#test_resolving_circular_method_aliases ⇒ Object 



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# File 'lib/ruby_indexer/test/index_test.rb', line 1552

def test_resolving_circular_method_aliases
  index(<<~RUBY)
    class Foo
      alias bar bar
    end
  RUBY

  # It's not possible to resolve an alias that points to itself
  methods = @index.resolve_method("bar", "Foo")
  assert_nil(methods)

  entry = @index["bar"]&.first
  assert_kind_of(Entry::UnresolvedMethodAlias, entry)
end

#test_resolving_circular_method_aliases_on_class_reopen ⇒ Object 



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# File 'lib/ruby_indexer/test/index_test.rb', line 1947

def test_resolving_circular_method_aliases_on_class_reopen
  index(<<~RUBY)
    class Foo
      alias bar ==
      def ==(other) = true
    end

    class Foo
      alias == bar
    end
  RUBY

  method = @index.resolve_method("==", "Foo")&.first #: as Entry::Method
  assert_kind_of(Entry::Method, method)
  assert_equal("==", method.name)

  candidates = @index.method_completion_candidates("=", "Foo")
  assert_equal(["==", "==="], candidates.map(&:name))
end

#test_resolving_constants_favors_ancestors_over_top_level ⇒ Object 



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# File 'lib/ruby_indexer/test/index_test.rb', line 1019

def test_resolving_constants_favors_ancestors_over_top_level
  index(<<~RUBY)
    module Value1
      CONST = 1
    end

    module Value2
      CONST = 2
    end

    CONST = 3
    module First
      include Value1

      module Second
        include Value2
      end
    end
  RUBY

  entry = @index.resolve("CONST", ["First", "Second"])&.first #: as !nil
  assert_equal(6, entry.location.start_line)
end

#test_resolving_constants_in_aliased_namespace ⇒ Object 



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# File 'lib/ruby_indexer/test/index_test.rb', line 1082

def test_resolving_constants_in_aliased_namespace
  index(<<~RUBY)
    module Original
      module Something
        CONST = 123
      end
    end

    module Other
      ALIAS = Original::Something
    end

    module Third
      Other::ALIAS::CONST
    end
  RUBY

  entry = @index.resolve("Other::ALIAS::CONST", ["Third"])&.first #: as !nil
  assert_kind_of(Entry::Constant, entry)
  assert_equal("Original::Something::CONST", entry.name)
end

#test_resolving_constants_in_singleton_contexts ⇒ Object 



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# File 'lib/ruby_indexer/test/index_test.rb', line 1397

def test_resolving_constants_in_singleton_contexts
  @index.index_single(URI::Generic.from_path(path: "/fake/path/foo.rb"), <<~RUBY)
    module Foo
      class Bar
        CONST = 3

        class << self
          CONST = 2

          class Baz
            CONST = 1

            class << self
            end
          end
        end
      end
    end
  RUBY

  entry = @index.resolve("CONST", ["Foo", "Bar", "<Class:Bar>", "Baz", "<Class:Baz>"])&.first #: as !nil
  refute_nil(entry)
  assert_equal(9, entry.location.start_line)
end

#test_resolving_inherited_aliased_namespace ⇒ Object 



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# File 'lib/ruby_indexer/test/index_test.rb', line 942

def test_resolving_inherited_aliased_namespace
  index(<<~RUBY)
    module Bar
      TARGET = 123
    end

    module Foo
      CONST = Bar
    end

    module Namespace
      class Bar
        include Foo
      end
    end
  RUBY

  entry = @index.resolve("Foo::CONST::TARGET", [])&.first #: as !nil
  assert_equal(2, entry.location.start_line)

  entry = @index.resolve("Namespace::Bar::CONST::TARGET", [])&.first #: as !nil
  assert_equal(2, entry.location.start_line)
end

#test_resolving_inherited_constants ⇒ Object 



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# File 'lib/ruby_indexer/test/index_test.rb', line 911

def test_resolving_inherited_constants
  index(<<~RUBY)
    module Foo
      CONST = 1
    end

    module Baz
      CONST = 2
    end

    module Qux
      include Foo
    end

    module Namespace
      CONST = 3

      include Baz

      class Bar
        include Qux
      end
    end

    CONST = 4
  RUBY

  entry = @index.resolve("CONST", ["Namespace", "Bar"])&.first #: as !nil
  assert_equal(14, entry.location.start_line)
end

#test_resolving_instance_variables_in_singleton_contexts ⇒ Object 



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# File 'lib/ruby_indexer/test/index_test.rb', line 1422

def test_resolving_instance_variables_in_singleton_contexts
  @index.index_single(URI::Generic.from_path(path: "/fake/path/foo.rb"), <<~RUBY)
    module Foo
      class Bar
        @a = 123

        class << self
          def hello
            @b = 123
          end

          @c = 123
        end
      end
    end
  RUBY

  entry = @index.resolve_instance_variable("@a", "Foo::Bar::<Class:Bar>")&.first #: as !nil
  refute_nil(entry)
  assert_equal("@a", entry.name)

  entry = @index.resolve_instance_variable("@b", "Foo::Bar::<Class:Bar>")&.first #: as !nil
  refute_nil(entry)
  assert_equal("@b", entry.name)

  entry = @index.resolve_instance_variable("@c", "Foo::Bar::<Class:Bar>::<Class:<Class:Bar>>")&.first #: as !nil
  refute_nil(entry)
  assert_equal("@c", entry.name)
end

#test_resolving_method_aliases ⇒ Object 



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# File 'lib/ruby_indexer/test/index_test.rb', line 1498

def test_resolving_method_aliases
  index(<<~RUBY)
    class Foo
      def bar(a, b, c)
      end

      alias double_alias bar
    end

    class Bar < Foo
      def hello(b); end

      alias baz bar
      alias_method :qux, :hello
      alias double double_alias
    end
  RUBY

  # baz
  methods = @index.resolve_method("baz", "Bar") #: as !nil
  refute_nil(methods)

  entry = methods.first #: as Entry::MethodAlias
  assert_kind_of(Entry::MethodAlias, entry)
  assert_equal("bar", entry.target.name)
  assert_equal("Foo", entry.target.owner&.name)

  # qux
  methods = @index.resolve_method("qux", "Bar") #: as !nil
  refute_nil(methods)

  entry = methods.first #: as Entry::MethodAlias
  assert_kind_of(Entry::MethodAlias, entry)
  assert_equal("hello", entry.target.name)
  assert_equal("Bar", entry.target.owner&.name)

  # double
  methods = @index.resolve_method("double", "Bar") #: as !nil
  refute_nil(methods)

  entry = methods.first #: as Entry::MethodAlias
  assert_kind_of(Entry::MethodAlias, entry)

  target = entry.target #: as Entry::MethodAlias
  assert_equal("double_alias", target.name)
  assert_kind_of(Entry::MethodAlias, target)
  assert_equal("Foo", target.owner&.name)

  final_target = target.target
  assert_equal("bar", final_target.name)
  assert_kind_of(Entry::Method, final_target)
  assert_equal("Foo", final_target.owner&.name)
end

#test_resolving_method_inside_singleton_context ⇒ Object 



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# File 'lib/ruby_indexer/test/index_test.rb', line 1377

def test_resolving_method_inside_singleton_context
  @index.index_single(URI::Generic.from_path(path: "/fake/path/foo.rb"), <<~RUBY)
    module Foo
      class Bar
        class << self
          class Baz
            class << self
              def found_me!; end
            end
          end
        end
      end
    end
  RUBY

  entry = @index.resolve_method("found_me!", "Foo::Bar::<Class:Bar>::Baz::<Class:Baz>")&.first #: as !nil
  refute_nil(entry)
  assert_equal("found_me!", entry.name)
end

#test_resolving_non_existing_self_referential_constant_alias ⇒ Object 



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# File 'lib/ruby_indexer/test/index_test.rb', line 1178

def test_resolving_non_existing_self_referential_constant_alias
  index(<<~RUBY)
    module Foo
      SomeClass = ::SomeClass
      UNRESOLVED = SomeClass::CONSTANT
    end
  RUBY

  entry = @index.resolve("Foo::UNRESOLVED", [])&.first #: as Entry::UnresolvedConstantAlias
  assert_kind_of(Entry::UnresolvedConstantAlias, entry)
  assert_equal(3, entry.location.start_line)
  assert_equal("SomeClass::CONSTANT", entry.target)

  entry = @index.resolve("SomeClass::CONSTANT", ["Foo"])
  refute(entry)
end

#test_resolving_prepended_constants ⇒ Object 



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# File 'lib/ruby_indexer/test/index_test.rb', line 987

def test_resolving_prepended_constants
  index(<<~RUBY)
    module Included
      CONST = 123
    end

    module Prepended
      CONST = 321
    end

    class Foo
      include Included
      prepend Prepended
    end

    class Bar
      CONST = 456
      include Included
      prepend Prepended
    end
  RUBY

  entry = @index.resolve("CONST", ["Foo"])&.first #: as !nil
  assert_equal(6, entry.location.start_line)

  entry = @index.resolve("Foo::CONST", [])&.first #: as !nil
  assert_equal(6, entry.location.start_line)

  entry = @index.resolve("Bar::CONST", [])&.first #: as !nil
  assert_equal(15, entry.location.start_line)
end

#test_resolving_qualified_references ⇒ Object 



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# File 'lib/ruby_indexer/test/index_test.rb', line 1195

def test_resolving_qualified_references
  index(<<~RUBY)
    module Namespace
      class Entry
        CONST = 1
      end
    end

    module Namespace
      class Index
      end
    end
  RUBY

  foo_entry = @index.resolve("Entry::CONST", ["Namespace", "Index"])&.first #: as !nil
  assert_equal(3, foo_entry.location.start_line)
end

#test_resolving_references_with_only_top_level_declaration ⇒ Object 



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# File 'lib/ruby_indexer/test/index_test.rb', line 1232

def test_resolving_references_with_only_top_level_declaration
  index(<<~RUBY)
    CONST = 1

    module Foo; end

    module Namespace
      class Index
        include Foo
      end
    end
  RUBY

  foo_entry = @index.resolve("CONST", ["Namespace", "Index"])&.first #: as !nil
  assert_equal(1, foo_entry.location.start_line)
end

#test_resolving_references_with_redundant_namespaces ⇒ Object 



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# File 'lib/ruby_indexer/test/index_test.rb', line 1130

def test_resolving_references_with_redundant_namespaces
  index(<<~RUBY)
    module Bar
      CONST = 1
    end

    module A
      CONST = 2

      module B
        CONST = 3

        class Foo
          include Bar
        end

        A::B::Foo::CONST
      end
    end
  RUBY

  foo_entry = @index.resolve("A::B::Foo::CONST", ["A", "B"])&.first #: as !nil
  assert_equal(2, foo_entry.location.start_line)
end

#test_resolving_same_constant_from_different_scopes ⇒ Object 



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# File 'lib/ruby_indexer/test/index_test.rb', line 966

def test_resolving_same_constant_from_different_scopes
  index(<<~RUBY)
    module Namespace
      CONST = 123

      class Parent
        CONST = 321
      end

      class Child < Parent
      end
    end
  RUBY

  entry = @index.resolve("CONST", ["Namespace", "Child"])&.first #: as !nil
  assert_equal(2, entry.location.start_line)

  entry = @index.resolve("Namespace::Child::CONST", [])&.first #: as !nil
  assert_equal(5, entry.location.start_line)
end

#test_resolving_self_referential_constant_alias ⇒ Object 



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# File 'lib/ruby_indexer/test/index_test.rb', line 1155

def test_resolving_self_referential_constant_alias
  index(<<~RUBY)
    module A
      module B
        class C
        end
      end
    end

    module A
      module D
        B = B::C
      end
    end
  RUBY

  entry = @index.resolve("A::D::B", [])&.first #: as Entry::ConstantAlias

  assert_kind_of(RubyIndexer::Entry::ConstantAlias, entry)
  assert_equal(10, entry.location.start_line)
  assert_equal("A::B::C", entry.target)
end

#test_resolving_top_level_aliases ⇒ Object 



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# File 'lib/ruby_indexer/test/index_test.rb', line 1104

def test_resolving_top_level_aliases
  index(<<~RUBY)
    class Foo
      CONST = 123
    end

    FOO = Foo
    FOO::CONST
  RUBY

  entry = @index.resolve("FOO::CONST", [])&.first #: as !nil
  assert_kind_of(Entry::Constant, entry)
  assert_equal("Foo::CONST", entry.name)
end

#test_resolving_top_level_compact_reference ⇒ Object 



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# File 'lib/ruby_indexer/test/index_test.rb', line 1119

def test_resolving_top_level_compact_reference
  index(<<~RUBY)
    class Foo::Bar
    end
  RUBY

  foo_entry = @index.resolve("Foo::Bar", [])&.first #: as !nil
  assert_equal(1, foo_entry.location.start_line)
  assert_instance_of(Entry::Class, foo_entry)
end

#test_resolving_unindexed_constant_with_no_nesting ⇒ Object 



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# File 'lib/ruby_indexer/test/index_test.rb', line 1291

def test_resolving_unindexed_constant_with_no_nesting
  assert_nil(@index.resolve("RSpec", []))
end

#test_resolving_unqualified_references ⇒ Object 



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# File 'lib/ruby_indexer/test/index_test.rb', line 1213

def test_resolving_unqualified_references
  index(<<~RUBY)
    module Foo
      CONST = 1
    end

    module Namespace
      CONST = 2

      class Index
        include Foo
      end
    end
  RUBY

  foo_entry = @index.resolve("CONST", ["Namespace", "Index"])&.first #: as !nil
  assert_equal(6, foo_entry.location.start_line)
end

#test_searching_for_entries_based_on_prefix ⇒ Object 



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# File 'lib/ruby_indexer/test/index_test.rb', line 146

def test_searching_for_entries_based_on_prefix
  @index.index_single(URI::Generic.from_path(path: "/fake/path/foo.rb", load_path_entry: "/fake"), <<~RUBY)
    class Foo::Bizw
    end
  RUBY
  @index.index_single(URI::Generic.from_path(path: "/fake/path/other_foo.rb", load_path_entry: "/fake"), <<~RUBY)
    class Foo::Bizw
    end

    class Foo::Bizt
    end
  RUBY

  results = @index.prefix_search("Foo", []).map { |entries| entries.map(&:name) }
  assert_equal([["Foo::Bizt"], ["Foo::Bizw", "Foo::Bizw"]], results)

  results = @index.prefix_search("Biz", ["Foo"]).map { |entries| entries.map(&:name) }
  assert_equal([["Foo::Bizt"], ["Foo::Bizw", "Foo::Bizw"]], results)
end

#test_searching_for_require_paths ⇒ Object 



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# File 'lib/ruby_indexer/test/index_test.rb', line 133

def test_searching_for_require_paths
  @index.index_single(URI::Generic.from_path(path: "/fake/path/foo.rb", load_path_entry: "/fake"), <<~RUBY)
    class Foo
    end
  RUBY
  @index.index_single(URI::Generic.from_path(path: "/fake/path/other_foo.rb", load_path_entry: "/fake"), <<~RUBY)
    class Foo
    end
  RUBY

  assert_equal(["path/other_foo", "path/foo"], @index.search_require_paths("path").map(&:require_path))
end

#test_singleton_nesting_is_correctly_split_during_linearization ⇒ Object 



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# File 'lib/ruby_indexer/test/index_test.rb', line 1914

def test_singleton_nesting_is_correctly_split_during_linearization
  index(<<~RUBY)
    module Bar; end

    module Foo
      class Namespace::Parent
        extend Bar
      end
    end

    module Foo
      class Child < Namespace::Parent
      end
    end
  RUBY

  assert_equal(
    [
      "Foo::Child::<Class:Child>",
      "Foo::Namespace::Parent::<Class:Parent>",
      "Bar",
      "Object::<Class:Object>",
      "BasicObject::<Class:BasicObject>",
      "Class",
      "Module",
      "Object",
      "Kernel",
      "BasicObject",
    ],
    @index.linearized_ancestors_of("Foo::Child::<Class:Child>"),
  )
end

#test_singletons_are_excluded_from_fuzzy_search ⇒ Object 



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# File 'lib/ruby_indexer/test/index_test.rb', line 1485

def test_singletons_are_excluded_from_fuzzy_search
  index(<<~RUBY)
    class Zwq
      class << self
      end
    end
  RUBY

  results = @index.fuzzy_search("Zwq")
  assert_equal(1, results.length)
  assert_equal("Zwq", results.first&.name)
end

#test_singletons_are_excluded_from_prefix_search ⇒ Object 



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# File 'lib/ruby_indexer/test/index_test.rb', line 1474

def test_singletons_are_excluded_from_prefix_search
  index(<<~RUBY)
    class Zwq
      class << self
      end
    end
  RUBY

  assert_empty(@index.prefix_search("Zwq::<C"))
end

#test_top_level_basic_object_superclass_resolution ⇒ Object 



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# File 'lib/ruby_indexer/test/index_test.rb', line 1365

def test_top_level_basic_object_superclass_resolution
  index(<<~RUBY)
    module Foo
      class BasicObject; end

      class Bar < ::BasicObject; end
    end
  RUBY

  assert_equal(["Foo::Bar", "BasicObject"], @index.linearized_ancestors_of("Foo::Bar"))
end

#test_top_level_object_superclass_resolution ⇒ Object 



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# File 'lib/ruby_indexer/test/index_test.rb', line 1353

def test_top_level_object_superclass_resolution
  index(<<~RUBY)
    module Foo
      class Object; end

      class Bar < ::Object; end
    end
  RUBY

  assert_equal(["Foo::Bar", "Object", "Kernel", "BasicObject"], @index.linearized_ancestors_of("Foo::Bar"))
end

#test_unresolvable_method_aliases ⇒ Object 



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# File 'lib/ruby_indexer/test/index_test.rb', line 1567

def test_unresolvable_method_aliases
  index(<<~RUBY)
    class Foo
      alias bar baz
    end
  RUBY

  # `baz` does not exist, so resolving `bar` is not possible
  methods = @index.resolve_method("bar", "Foo")
  assert_nil(methods)

  entry = @index["bar"]&.first
  assert_kind_of(Entry::UnresolvedMethodAlias, entry)
end

#test_visitor_does_not_visit_unnecessary_nodes ⇒ Object 



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# File 'lib/ruby_indexer/test/index_test.rb', line 204

def test_visitor_does_not_visit_unnecessary_nodes
  concats = (0...10_000).map do |i|
    <<~STRING
      "string#{i}" \\
    STRING
  end.join

  index(<<~RUBY)
    module Foo
      local_var = #{concats}
        "final"
      @class_instance_var = #{concats}
        "final"
      @@class_var = #{concats}
        "final"
      $global_var = #{concats}
        "final"
      CONST = #{concats}
        "final"
    end
  RUBY
end