Module: Test::Unit::Assertions
Constant Summary collapse
- MINI_DIR =
:nodoc:
File.join(File.dirname(File.dirname(File.(__FILE__))), "minitest")
Instance Method Summary collapse
-
#assert(test, *msgs) ⇒ Object
:call-seq: assert(test, [failure_message]).
-
#assert_block(*msgs) ⇒ Object
:call-seq: assert_block( failure_message = nil ).
-
#assert_equal(exp, act, msg = nil) ⇒ Object
:call-seq: assert_equal( expected, actual, failure_message = nil ).
-
#assert_no_match(regexp, string, msg = nil) ⇒ Object
:call-seq: assert_no_match( regexp, string, failure_message = nil ).
-
#assert_not_equal(exp, act, msg = nil) ⇒ Object
:call-seq: assert_not_equal( expected, actual, failure_message = nil ).
-
#assert_not_nil(exp, msg = nil) ⇒ Object
:call-seq: assert_not_nil( expression, failure_message = nil ).
-
#assert_not_same(expected, actual, message = "") ⇒ Object
:call-seq: assert_not_same( expected, actual, failure_message = nil ).
-
#assert_not_send(send_ary, m = nil) ⇒ Object
:call-seq: assert_not_send(
send_array
, failure_message = nil ). -
#assert_nothing_raised(*args) ⇒ Object
:call-seq: assert_nothing_raised( *args, &block ).
-
#assert_nothing_thrown(msg = nil) ⇒ Object
:call-seq: assert_nothing_thrown( failure_message = nil, &block ).
-
#assert_raise(*args, &b) ⇒ Object
:call-seq: assert_raise( *args, &block ).
-
#assert_raise_with_message(exception, expected, msg = nil) ⇒ Object
:call-seq: assert_raise_with_message(exception, expected, msg = nil, &block).
-
#assert_respond_to(obj, meth, priv, msg = nil) ⇒ Object
:call-seq: assert_respond_to( object, method, failure_message = nil ).
-
#assert_send(send_ary, m = nil) ⇒ Object
:call-seq: assert_send(
send_array
, failure_message = nil ). -
#build_message(head, template = nil, *arguments) ⇒ Object
:nodoc:.
-
#message(msg = nil, *args, &default) ⇒ Object
:nodoc:.
-
#mu_pp(obj) ⇒ Object
:nodoc:.
Instance Method Details
#assert(test, *msgs) ⇒ Object
:call-seq:
assert(test, [])
Tests if test
is true.
msg
may be a String or a Proc. If msg
is a String, it will be used as the failure message. Otherwise, the result of calling msg
will be used as the message if the assertion fails.
If no msg
is given, a default message will be used.
assert(false, "This was expected to be true")
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# File 'lib/test/unit/assertions.rb', line 27 def assert(test, *msgs) case msg = msgs.first when String, Proc else bt = caller.reject { |s| s.start_with?(MINI_DIR) } raise ArgumentError, "assertion message must be String or Proc, but #{msg.class} was given.", bt end unless msgs.empty? super end |
#assert_block(*msgs) ⇒ Object
:call-seq:
assert_block( = nil )
Tests the result of the given block. If the block does not return true, the assertion will fail. The optional failure_message
argument is the same as in Assertions#assert.
assert_block do
[1, 2, 3].any? { |num| num < 1 }
end
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# File 'lib/test/unit/assertions.rb', line 47 def assert_block(*msgs) assert yield, *msgs end |
#assert_equal(exp, act, msg = nil) ⇒ Object
:call-seq:
assert_equal( expected, actual, = nil )
Tests if expected
is equal to actual
.
An optional failure message may be provided as the final argument.
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# File 'lib/test/unit/assertions.rb', line 176 def assert_equal(exp, act, msg = nil) msg = (msg) { exp_str = mu_pp(exp) act_str = mu_pp(act) exp_comment = '' act_comment = '' if exp_str == act_str if (exp.is_a?(String) && act.is_a?(String)) || (exp.is_a?(Regexp) && act.is_a?(Regexp)) exp_comment = " (#{exp.encoding})" act_comment = " (#{act.encoding})" elsif exp.is_a?(Float) && act.is_a?(Float) exp_str = "%\#.#{Float::DIG+2}g" % exp act_str = "%\#.#{Float::DIG+2}g" % act elsif exp.is_a?(Time) && act.is_a?(Time) if exp.subsec * 1000_000_000 == exp.nsec exp_comment = " (#{exp.nsec}[ns])" else exp_comment = " (subsec=#{exp.subsec})" end if act.subsec * 1000_000_000 == act.nsec act_comment = " (#{act.nsec}[ns])" else act_comment = " (subsec=#{act.subsec})" end elsif exp.class != act.class # a subclass of Range, for example. exp_comment = " (#{exp.class})" act_comment = " (#{act.class})" end elsif !Encoding.compatible?(exp_str, act_str) if exp.is_a?(String) && act.is_a?(String) exp_str = exp.dump act_str = act.dump exp_comment = " (#{exp.encoding})" act_comment = " (#{act.encoding})" else exp_str = exp_str.dump act_str = act_str.dump end end "<#{exp_str}>#{exp_comment} expected but was\n<#{act_str}>#{act_comment}" } assert(exp == act, msg) end |
#assert_no_match(regexp, string, msg = nil) ⇒ Object
:call-seq:
assert_no_match( regexp, string, = nil )
Tests if the given Regexp does not match a given String.
An optional failure message may be provided as the final argument.
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# File 'lib/test/unit/assertions.rb', line 250 def assert_no_match(regexp, string, msg=nil) assert_instance_of(Regexp, regexp, "The first argument to assert_no_match should be a Regexp.") self._assertions -= 1 msg = (msg) { "<#{mu_pp(regexp)}> expected to not match\n<#{mu_pp(string)}>" } assert(regexp !~ string, msg) end |
#assert_not_equal(exp, act, msg = nil) ⇒ Object
:call-seq:
assert_not_equal( expected, actual, = nil )
Tests if expected
is not equal to actual
.
An optional failure message may be provided as the final argument.
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# File 'lib/test/unit/assertions.rb', line 239 def assert_not_equal(exp, act, msg=nil) msg = (msg) { "<#{mu_pp(exp)}> expected to be != to\n<#{mu_pp(act)}>" } assert(exp != act, msg) end |
#assert_not_nil(exp, msg = nil) ⇒ Object
:call-seq:
assert_not_nil( expression, = nil )
Tests if expression
is not nil.
An optional failure message may be provided as the final argument.
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# File 'lib/test/unit/assertions.rb', line 228 def assert_not_nil(exp, msg=nil) msg = (msg) { "<#{mu_pp(exp)}> expected to not be nil" } assert(!exp.nil?, msg) end |
#assert_not_same(expected, actual, message = "") ⇒ Object
:call-seq:
assert_not_same( expected, actual, = nil )
Tests if expected
is not the same object as actual
. This test uses Object#equal? to test equality.
An optional failure message may be provided as the final argument.
assert_not_same("x", "x") #Succeeds
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# File 'lib/test/unit/assertions.rb', line 266 def assert_not_same(expected, actual, ="") msg = (msg) { (, <<EOT, expected, expected.__id__, actual, actual.__id__) } <?> with id <?> expected to not be equal\\? to <?> with id <?>. EOT assert(!actual.equal?(expected), msg) end |
#assert_not_send(send_ary, m = nil) ⇒ Object
:call-seq:
assert_not_send( +send_array+, failure_message = nil )
Passes if the method send doesn’t return a true value.
send_array
is composed of:
-
A receiver
-
A method
-
Arguments to the method
Example:
assert_not_send([[1, 2], :member?, 1]) # -> fail
assert_not_send([[1, 2], :member?, 4]) # -> pass
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# File 'lib/test/unit/assertions.rb', line 335 def assert_not_send send_ary, m = nil recv, msg, *args = send_ary m = (m) { if args.empty? argsstr = "" else (argsstr = mu_pp(args)).sub!(/\A\[(.*)\]\z/m, '(\1)') end "Expected #{mu_pp(recv)}.#{msg}#{argsstr} to return false" } assert !recv.__send__(msg, *args), m end |
#assert_nothing_raised(*args) ⇒ Object
:call-seq:
assert_nothing_raised( *args, &block )
If any exceptions are given as arguments, the assertion will fail if one of those exceptions are raised. Otherwise, the test fails if any exceptions are raised.
The final argument may be a failure message.
assert_nothing_raised RuntimeError do
raise Exception #Assertion passes, Exception is not a RuntimeError
end
assert_nothing_raised do
raise Exception #Assertion fails
end
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# File 'lib/test/unit/assertions.rb', line 120 def assert_nothing_raised(*args) self._assertions += 1 if Module === args.last msg = nil else msg = args.pop end begin line = __LINE__; yield rescue MiniTest::Skip raise rescue Exception => e bt = e.backtrace as = e.instance_of?(MiniTest::Assertion) if as ans = /\A#{Regexp.quote(__FILE__)}:#{line}:in /o bt.reject! {|ln| ans =~ ln} end if ((args.empty? && !as) || args.any? {|a| a.instance_of?(Module) ? e.is_a?(a) : e.class == a }) msg = (msg) { "Exception raised:\n<#{mu_pp(e)}>" } raise MiniTest::Assertion, msg.call, bt else raise end end nil end |
#assert_nothing_thrown(msg = nil) ⇒ Object
:call-seq:
assert_nothing_thrown( = nil, &block )
Fails if the given block uses a call to Kernel#throw.
An optional failure message may be provided as the final argument.
assert_nothing_thrown "Something was thrown!" do
throw :problem?
end
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# File 'lib/test/unit/assertions.rb', line 159 def assert_nothing_thrown(msg=nil) begin yield rescue ArgumentError => error raise error if /\Auncaught throw (.+)\z/m !~ error. msg = (msg) { "<#{$1}> was thrown when nothing was expected" } flunk(msg) end assert(true, "Expected nothing to be thrown") end |
#assert_raise(*args, &b) ⇒ Object
:call-seq:
assert_raise( *args, &block )
Tests if the given block raises an exception. Acceptable exception types maye be given as optional arguments. If the last argument is a String, it will be used as the error message.
assert_raise do #Fails, no Exceptions are raised
end
assert_raise NameError do
puts x #Raises NameError, so assertion succeeds
end
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# File 'lib/test/unit/assertions.rb', line 64 def assert_raise(*args, &b) assert_raises(*args, &b) end |
#assert_raise_with_message(exception, expected, msg = nil) ⇒ Object
:call-seq:
(exception, expected, msg = nil, &block)
Tests if the given block raises an exception with the expected message.
(RuntimeError, "foo") do
nil #Fails, no Exceptions are raised
end
(RuntimeError, "foo") do
raise ArgumentError, "foo" #Fails, different Exception is raised
end
(RuntimeError, "foo") do
raise "bar" #Fails, RuntimeError is raised but the message differs
end
(RuntimeError, "foo") do
raise "foo" #Raises RuntimeError with the message, so assertion succeeds
end
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# File 'lib/test/unit/assertions.rb', line 89 def (exception, expected, msg = nil) case expected when String assert = :assert_equal when Regexp assert = :assert_match else raise TypeError, "Expected #{expected.inspect} to be a kind of String or Regexp, not #{expected.class}" end ex = assert_raise(exception, msg) {yield} msg = (msg, "") {"Expected Exception(#{exception}) was raised, but the message doesn't match"} __send__(assert, expected, ex., msg) end |
#assert_respond_to(obj, meth, priv, msg = nil) ⇒ Object
:call-seq:
assert_respond_to( object, method, = nil )
Tests if the given Object responds to method
.
An optional failure message may be provided as the final argument.
assert_respond_to("hello", :reverse) #Succeeds
assert_respond_to("hello", :does_not_exist) #Fails
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# File 'lib/test/unit/assertions.rb', line 285 def assert_respond_to obj, (meth, priv), msg = nil if priv msg = (msg) { "Expected #{mu_pp(obj)} (#{obj.class}) to respond to ##{meth}#{" privately" if priv}" } return assert obj.respond_to?(meth, priv), msg end #get rid of overcounting super if !caller[0].rindex(MINI_DIR, 0) || !obj.respond_to?(meth) end |
#assert_send(send_ary, m = nil) ⇒ Object
:call-seq:
assert_send( +send_array+, failure_message = nil )
Passes if the method send returns a true value.
send_array
is composed of:
-
A receiver
-
A method
-
Arguments to the method
Example:
assert_send([[1, 2], :member?, 1]) # -> pass
assert_send([[1, 2], :member?, 4]) # -> fail
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# File 'lib/test/unit/assertions.rb', line 309 def assert_send send_ary, m = nil recv, msg, *args = send_ary m = (m) { if args.empty? argsstr = "" else (argsstr = mu_pp(args)).sub!(/\A\[(.*)\]\z/m, '(\1)') end "Expected #{mu_pp(recv)}.#{msg}#{argsstr} to return true" } assert recv.__send__(msg, *args), m end |
#build_message(head, template = nil, *arguments) ⇒ Object
:nodoc:
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# File 'lib/test/unit/assertions.rb', line 356 def (head, template=nil, *arguments) #:nodoc: template &&= template.chomp template.gsub(/\G((?:[^\\]|\\.)*?)(\\)?\?/) { $1 + ($2 ? "?" : mu_pp(arguments.shift)) } end |
#message(msg = nil, *args, &default) ⇒ Object
:nodoc:
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# File 'lib/test/unit/assertions.rb', line 361 def (msg = nil, *args, &default) # :nodoc: if Proc === msg super(nil, *args) do [msg.call, (default.call if default)].compact.reject(&:empty?).join(".\n") end else super end end |
#mu_pp(obj) ⇒ Object
:nodoc:
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# File 'lib/test/unit/assertions.rb', line 9 def mu_pp(obj) #:nodoc: obj.pretty_inspect.chomp end |