Class: Test::Unit::TestCase

Inherits:
Object
  • Object
show all
Includes:
Assertions, Attribute, Data, ErrorHandler, ExceptionHandler, FailureHandler, Fixture, Priority, TestCaseNotificationSupport, TestCaseOmissionSupport, TestCasePendingSupport, Util::BacktraceFilter, Util::Output
Defined in:
lib/test/unit/testcase.rb

Overview

Ties everything together. If you subclass and add your own test methods, it takes care of making them into tests and wrapping those tests into a suite. It also does the nitty-gritty of actually running an individual test and collecting its results into a Test::Unit::TestResult object.

You can run two hooks before/after a TestCase run.

Example:

class TestMyClass < Test::Unit::TestCase
  class << self
    def startup
      ...
    end

    def shutdown
      ...
    end
  end

  def setup
    ...
  end

  def cleanup
    ...
  end

  def teardown
    ...
  end

  def test_my_method1
    ...
  end

  def test_my_method2
    ...
  end
end

Here is a call order:

  1. startup

  2. setup

  3. test_my_method1

  4. cleanup

  5. teardown

  6. setup

  7. test_my_method2

  8. cleanup

  9. teardown

  10. shutdown

You can set an attribute to each test.

Example:

class TestMyClass < Test::Unit::TestCase
  attribute :speed, :fast
  def test_my_fast_method
    # You can get the attribute via `self[]`
    self[:speed] # => :fast
    ...
  end

  attribute :speed, :slow
  def test_my_slow_method
    self[:speed] # => :slow
    ...
  end
end

Defined Under Namespace

Classes: InternalData

Constant Summary collapse

STARTED =

:nodoc:

name + "::STARTED"
FINISHED =

:nodoc:

name + "::FINISHED"
STARTED_OBJECT =

:nodoc:

name + "::STARTED::OBJECT"
FINISHED_OBJECT =

:nodoc:

name + "::FINISHED::OBJECT"
DESCENDANTS =

:nodoc:

[]
AVAILABLE_ORDERS =

:nodoc:

[:alphabetic, :random, :defined]
@@added_method_names = 
{}
@@test_orders = 
{}

Constants included from Util::BacktraceFilter

Util::BacktraceFilter::POWERASSERT_PREFIX, Util::BacktraceFilter::TESTUNIT_FILE_SEPARATORS, Util::BacktraceFilter::TESTUNIT_PREFIX, Util::BacktraceFilter::TESTUNIT_RB_FILE

Constants included from Assertions

Assertions::NOT_SPECIFIED

Constants included from ErrorHandler

ErrorHandler::NOT_PASS_THROUGH_EXCEPTIONS, ErrorHandler::NOT_PASS_THROUGH_EXCEPTION_NAMES, ErrorHandler::PASS_THROUGH_EXCEPTIONS, ErrorHandler::PASS_THROUGH_EXCEPTION_NAMES

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Methods included from Util::Output

#capture_output

Methods included from Util::BacktraceFilter

filter_backtrace

Methods included from Assertions

#assert, #assert_alias_method, #assert_block, #assert_boolean, #assert_compare, #assert_const_defined, #assert_empty, #assert_equal, #assert_fail_assertion, #assert_false, #assert_in_delta, #assert_in_epsilon, #assert_include, #assert_instance_of, #assert_kind_of, #assert_match, #assert_nil, #assert_no_match, #assert_not_const_defined, #assert_not_empty, #assert_not_equal, #assert_not_in_delta, #assert_not_in_epsilon, #assert_not_include, #assert_not_instance_of, #assert_not_kind_of, #assert_not_match, #assert_not_nil, #assert_not_operator, #assert_not_predicate, #assert_not_respond_to, #assert_not_same, #assert_not_send, #assert_nothing_raised, #assert_nothing_thrown, #assert_operator, #assert_path_exist, #assert_path_not_exist, #assert_predicate, #assert_raise, #assert_raise_kind_of, #assert_raise_message, #assert_respond_to, #assert_same, #assert_send, #assert_throw, #assert_true, #build_message, #flunk, #refute, use_pp=

Methods included from Data

included

Methods included from Priority

available_values, default, default=, disable, enable, enabled?, included, #priority_setup, #priority_teardown

Methods included from TestCaseNotificationSupport

included, #notify

Methods included from TestCaseOmissionSupport

included, #omit, #omit_if, #omit_unless

Methods included from TestCasePendingSupport

included, #pend

Methods included from FailureHandler

#add_failure, included

Methods included from ErrorHandler

included

Methods included from ExceptionHandler

exception_handlers, included

Methods included from Fixture

included

Methods included from Attribute

#[], #attributes, included

Constructor Details

#initialize(test_method_name) ⇒ TestCase

Creates a new instance of the fixture for running the test represented by test_method_name.



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# File 'lib/test/unit/testcase.rb', line 492

def initialize(test_method_name)
  @method_name = test_method_name
  @internal_data = InternalData.new
end

Instance Attribute Details

#method_name ⇒ Object (readonly)

Returns the value of attribute method_name.



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# File 'lib/test/unit/testcase.rb', line 488

def method_name
  @method_name
end

Class Method Details

.added_method_names ⇒ Object

:nodoc:



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# File 'lib/test/unit/testcase.rb', line 172

def added_method_names # :nodoc:
  (@@added_method_names[self] ||= {}).keys
end

.description(value, target = nil) ⇒ Object

Describes a test.

The following example associates “register a normal user” description with “test_register” test.

description "register a normal user"
def test_register
  ...
end



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# File 'lib/test/unit/testcase.rb', line 348

def description(value, target=nil)
  targets = [target].compact
  attribute(:description, value, {}, *targets)
end

.find_locations(query) ⇒ Object 



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# File 'lib/test/unit/testcase.rb', line 416

def find_locations(query)
  query_path = query[:path]
  query_line = query[:line]
  query_method_name = query[:method_name]

  available_locations = target_method_locations(query_path)
  if query_line
    available_locations = available_locations.sort_by do |location|
      -location[:line]
    end
    available_location = available_locations.find do |location|
      query_line >= location[:line]
    end
    return [] if available_location.nil?
    return [] if available_location[:test_case] != self
    available_locations = [available_location]
  end
  if query_method_name
    available_location = available_locations.find do |location|
      location[:test_case] == self and
        query_method_name == location[:method_name]
    end
    return [] if available_location.nil?
    available_locations = [available_location]
  end

  available_locations
end

.include(*modules, &block) ⇒ Object

:nodoc:



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# File 'lib/test/unit/testcase.rb', line 133

def include(*modules, &block) # :nodoc:
  super
  modules.each do |mod|
    mod.public_instance_methods(false).each do |method_name|
      AutoRunnerLoader.check(self, method_name.to_s)
    end
  end
end

.inherited(sub_class) ⇒ Object

:nodoc:



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# File 'lib/test/unit/testcase.rb', line 128

def inherited(sub_class) # :nodoc:
  DESCENDANTS << sub_class
  super
end

.method_added(name) ⇒ Object

:nodoc:



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# File 'lib/test/unit/testcase.rb', line 143

def method_added(name) # :nodoc:
  super
  added_method_names = (@@added_method_names[self] ||= {})
  stringified_name = name.to_s
  if added_method_names.key?(stringified_name)
    attribute(:redefined, {:backtrace => caller}, {}, stringified_name)
  end
  source_location = find_attribute(stringified_name, :source_location)
  if source_location
    path, line = source_location
  elsif respond_to?(:caller_locations, true)
    location = caller_locations(1, 1)[0]
    path = location.absolute_path || location.path
    line = location.lineno
  else
    # TODO: Remove me when Ruby 1.9 support is dropped
    path, line, = caller[0].split(/:(\d+)/, 2)
    line = line.to_i if line
  end
  location = {
    :method_name => stringified_name,
    :path => File.expand_path(path),
    :line => line,
  }
  add_method_location(location)
  added_method_names[stringified_name] = true
  AutoRunnerLoader.check(self, stringified_name)
end

.shutdown ⇒ Object

Called after every test case runs. Can be used to tear down fixture information used in test case scope.

Here is an example test case:

class TestMyClass < Test::Unit::TestCase
  class << self
    def shutdown
      ...
    end
  end

  def teardown
    ...
  end

  def test_my_class1
    ...
  end

  def test_my_class2
    ...
  end
end

Here is a call order:

  • test_my_class1 (or test_my_class2)

  • teardown

  • test_my_class2 (or test_my_class1)

  • teardown

  • shutdown

Note that you should not assume test order. Tests should be worked in any order.



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# File 'lib/test/unit/testcase.rb', line 258

def shutdown
end

.startup ⇒ Object

Called before every test case runs. Can be used to set up fixture information used in test case scope.

Here is an example test case:

class TestMyClass < Test::Unit::TestCase
  class << self
    def startup
      ...
    end
  end

  def setup
    ...
  end

  def test_my_class1
    ...
  end

  def test_my_class2
    ...
  end
end

Here is a call order:

  • startup

  • setup

  • test_my_class1 (or test_my_class2)

  • setup

  • test_my_class2 (or test_my_class1)

Note that you should not assume test order. Tests should be worked in any order.



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# File 'lib/test/unit/testcase.rb', line 220

def startup
end

.sub_test_case(name) { ... } ⇒ Test::Unit::TestCase

Defines a sub test case.

This is a syntax sugar. The both of the following codes are the same in meaning:

Standard:

class TestParent < Test::Unit::TestCase
  class TestChild < self
    def test_in_child
    end
  end
end

Syntax sugar:

class TestParent < Test::Unit::TestCase
  sub_test_case("TestChild") do
    def test_in_child
    end
  end
end

The difference of them are the following:

  • Test case created by sub_test_case is an anonymous class. So you can’t refer the test case by name.

  • The class name of class style must follow constant naming rule in Ruby. But the name of test case created by sub_test_case doesn’t need to follow the rule. For example, you can use a space in name such as “child test”.

Parameters:

  • name (String) —

    The name of newly created sub test case.

Yields:

  • The block is evaluated under the newly created sub test case class context.

Returns:



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# File 'lib/test/unit/testcase.rb', line 390

def sub_test_case(name, &block)
  parent_test_case = self
  sub_test_case = Class.new(self) do
    singleton_class = class << self; self; end
    singleton_class.__send__(:define_method, :name) do
      [parent_test_case.name, name].compact.join("::")
    end
  end
  sub_test_case.class_eval(&block)
  sub_test_case
end

.suite ⇒ Object

Rolls up all of the test* methods in the fixture into one suite, creating a new instance of the fixture for each method.



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# File 'lib/test/unit/testcase.rb', line 179

def suite
  suite_creator = TestSuiteCreator.new(self)
  suite_creator.create
end

.test(*test_description_or_targets, &block) ⇒ Object

Defines a test in declarative syntax or marks following method as a test method.

In declarative syntax usage, the following two test definitions are the almost same:

description "register user"
def test_register_user
  ...
end

test "register user" do
  ...
end

In test method mark usage, the “my_test_method” is treated as a test method:

test
def my_test_method
  assert_equal("call me", ...)
end



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# File 'lib/test/unit/testcase.rb', line 311

def test(*test_description_or_targets, &block)
  if block_given?
    test_description = test_description_or_targets.first
    if test_description.nil?
      raise ArgumentError, "test description is missing"
    end
    n_arguments = test_description_or_targets.size
    if n_arguments > 1
      message = "wrong number of arguments (#{n_arguments} for 1)"
      raise ArgumentError, message
    end
    method_name = "test: #{test_description}"
    description(test_description, method_name)
    attribute(:test, true, {}, method_name)
    if block.respond_to?(:source_location)
      attribute(:source_location, block.source_location, {}, method_name)
    end
    define_method(method_name, &block)
  else
    targets = test_description_or_targets
    attribute(:test, true, {}, *targets)
    targets.each do |target|
      AutoRunnerLoader.check(self, target)
    end
  end
end

.test_defined?(query) ⇒ Boolean

Checks whether a test that is matched the query is defined.

Parameters:

  • query (Hash) —

    a customizable set of options

Options Hash (query):

  • :path (String) — default: nil —

    the path where a test is defined in.

  • :line (Numeric) — default: nil —

    the line number where a test is defined at.

  • :method_name (String) — default: nil —

    the method name for a test.

Returns:

  • (Boolean) 


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# File 'lib/test/unit/testcase.rb', line 411

def test_defined?(query)
  locations = find_locations(query)
  not locations.empty?
end

.test_order ⇒ Object

Returns the current test order. This returns ‘:alphabetic` by default.



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# File 'lib/test/unit/testcase.rb', line 265

def test_order
  ancestors.each do |ancestor|
    order = @@test_orders[ancestor]
    return order if order
  end
  AVAILABLE_ORDERS.first
end

.test_order=(order) ⇒ Object

Sets the current test order.

Here are the available order:

:alphabetic : Default. Tests are sorted in alphabetic order.

:random : Tests are sorted in random order.

:defined : Tests are sorted in defined order.



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# File 'lib/test/unit/testcase.rb', line 285

def test_order=(order)
  @@test_orders[self] = order
end

Instance Method Details

#==(other) ⇒ Object

It’s handy to be able to compare TestCase instances.



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# File 'lib/test/unit/testcase.rb', line 758

def ==(other)
  return false unless other.kind_of?(self.class)
  return false unless @method_name == other.method_name
  return false unless data_label == other.data_label
  self.class == other.class
end

#add_pass ⇒ void

This method returns an undefined value.

Notify that the test is passed. Normally, it is not needed because #run calls it automatically. If you want to override #run, it is not a good idea. Please contact test-unit developers. We will help you without your custom #run. For example, we may add a new hook in #run.

This is a public API for developers who extend test-unit.



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# File 'lib/test/unit/testcase.rb', line 807

def add_pass
  current_result.add_pass
end

#assign_test_data(label, data) ⇒ Object

Assigns test data to the test. It is used in internal.



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# File 'lib/test/unit/testcase.rb', line 498

def assign_test_data(label, data) # :nodoc:
  @internal_data.assign_test_data(label, data)
end

#cleanup ⇒ Object

Called after every test method runs but the test method isn’t marked as ‘passed’. Can be used to clean up and/or verify tested condition. e.g. Can be used to verify mock.

You can add additional cleanup tasks by the following code:

class TestMyClass < Test::Unit::TestCase
  def cleanup
    ...
  end

  cleanup
  def my_cleanup1
    ...
  end

  cleanup do
    ... # cleanup callback1
  end

  cleanup
  def my_cleanup2
    ...
  end

  cleanup do
    ... # cleanup callback2
  end

  def test_my_class
    ...
  end
end

Here is a call order:

  • test_my_class

  • cleanup callback2

  • my_cleanup2

  • cleanup callback1

  • my_cleanup1

  • cleanup



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# File 'lib/test/unit/testcase.rb', line 655

def cleanup
end

#data ⇒ Object

Returns test data for the test. If the test isn’t associated with any test data, it returns ‘nil`.



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# File 'lib/test/unit/testcase.rb', line 720

def data
  @internal_data.test_data
end

#data_label ⇒ Object

Returns a label of test data for the test. If the test isn’t associated with any test data, it returns ‘nil`.



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# File 'lib/test/unit/testcase.rb', line 714

def data_label
  @internal_data.test_data_label
end

#default_test ⇒ Object 



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# File 'lib/test/unit/testcase.rb', line 703

def default_test
  flunk("No tests were specified")
end

#description ⇒ Object

Returns a description for the test. A description will be associated by Test::Unit::TestCase.test or Test::Unit::TestCase.description.

Returns a name for the test for no description test.



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# File 'lib/test/unit/testcase.rb', line 748

def description
  self[:description] || name
end

#elapsed_time ⇒ Object

Returns elapsed time for the test was ran.



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# File 'lib/test/unit/testcase.rb', line 771

def elapsed_time
  @internal_data.elapsed_time
end

#interrupted? ⇒ Boolean

Returns whether the test is interrupted.

Returns:

  • (Boolean) 


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# File 'lib/test/unit/testcase.rb', line 776

def interrupted?
  @internal_data.interrupted?
end

#local_name ⇒ Object

Returns a human-readable name for the specific test that this instance of TestCase represents.

‘#local_name` doesn’t include class name. ‘#name` includes class name.



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# File 'lib/test/unit/testcase.rb', line 735

def local_name
  if @internal_data.have_test_data?
    "#{@method_name}[#{data_label}]"
  else
    @method_name.to_s
  end
end

#name ⇒ Object

Returns a human-readable name for the specific test that this instance of TestCase represents.



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# File 'lib/test/unit/testcase.rb', line 726

def name
  "#{local_name}(#{self.class.name})"
end

#passed? ⇒ Boolean

Returns whether this individual test passed or not. Primarily for use in teardown so that artifacts can be left behind if the test fails.

Returns:

  • (Boolean) 


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# File 'lib/test/unit/testcase.rb', line 783

def passed?
  @internal_data.passed?
end

#problem_occurred ⇒ void

This method returns an undefined value.

Notify that a problem is occurred in the test. It means that the test is a failed test. If any failed tests exist in test suites, the test process exits with failure exit status.

This is a public API for developers who extend test-unit.



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# File 'lib/test/unit/testcase.rb', line 794

def problem_occurred
  @internal_data.problem_occurred
end

#run(result) ⇒ Object

Runs the individual test method represented by this instance of the fixture, collecting statistics, failures and errors in result.



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# File 'lib/test/unit/testcase.rb', line 519

def run(result)
  begin
    @_result = result
    @internal_data.test_started
    yield(STARTED, name)
    yield(STARTED_OBJECT, self)
    processed_exception_in_setup = false
    begin
      catch do |tag|
        run_setup do
          begin
            run_test
            run_cleanup
            add_pass
          rescue Exception
            @internal_data.interrupted
            unless handle_exception($!)
              processed_exception_in_setup = true
              raise
            end
            throw(tag)
          end
        end
      end
    rescue Exception
      if processed_exception_in_setup
        raise
      else
        @internal_data.interrupted
        raise unless handle_exception($!)
      end
    ensure
      begin
        run_teardown
      rescue Exception
        raise unless handle_exception($!)
      end
    end
    @internal_data.test_finished
    result.add_run
    yield(FINISHED, name)
    yield(FINISHED_OBJECT, self)
  ensure
    # @_result = nil # For test-spec's after_all :<
  end
end

#setup ⇒ Object

Called before every test method runs. Can be used to set up fixture information.

You can add additional setup tasks by the following code:

class TestMyClass < Test::Unit::TestCase
  def setup
    ...
  end

  setup
  def my_setup1
    ...
  end

  setup do
    ... # setup callback1
  end

  setup
  def my_setup2
    ...
  end

  setup do
    ... # setup callback2
  end

  def test_my_class
    ...
  end
end

Here is a call order:

  • setup

  • my_setup1

  • setup callback1

  • my_setup2

  • setup callback2

  • test_my_class



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# File 'lib/test/unit/testcase.rb', line 608

def setup
end

#size ⇒ Object 



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# File 'lib/test/unit/testcase.rb', line 707

def size
  1
end

#start_time ⇒ Object

Returns a Time at the test was started.



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# File 'lib/test/unit/testcase.rb', line 766

def start_time
  @internal_data.start_time
end

#teardown ⇒ Object

Called after every test method runs. Can be used to tear down fixture information.

You can add additional teardown tasks by the following code:

class TestMyClass < Test::Unit::TestCase
  def teardown
    ...
  end

  teardown
  def my_teardown1
    ...
  end

  teardown do
    ... # teardown callback1
  end

  teardown
  def my_teardown2
    ...
  end

  teardown do
    ... # teardown callback2
  end

  def test_my_class
    ...
  end
end

Here is a call order:

  • test_my_class

  • teardown callback2

  • my_teardown2

  • teardown callback1

  • my_teardown1

  • teardown



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# File 'lib/test/unit/testcase.rb', line 700

def teardown
end

#to_s ⇒ Object

Overridden to return #name.



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# File 'lib/test/unit/testcase.rb', line 753

def to_s
  name
end

#valid? ⇒ Boolean

Returns the test is valid test. It is used in internal.

Returns:

  • (Boolean) 


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# File 'lib/test/unit/testcase.rb', line 503

def valid? # :nodoc:
  return false unless respond_to?(@method_name)
  test_method = method(@method_name)
  unless @internal_data.have_test_data?
    return false unless test_method.arity <= 0
  end
  owner = Util::MethodOwnerFinder.find(self, @method_name)
  if owner.class != Module and self.class != owner
    return false
  end
  true
end