/usr/lib/ruby/vendor_ruby/test/unit/assertions.rb is in ruby-test-unit 3.2.5-1.
This file is owned by root:root, with mode 0o644.
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2222 2223 2224 2225 2226 2227 2228 2229 2230 2231 2232 2233 2234 2235 2236 2237 2238 2239 2240 2241 2242 2243 2244 2245 2246 2247 2248 2249 | # Author:: Nathaniel Talbott.
# Copyright:: Copyright (c) 2000-2003 Nathaniel Talbott. All rights reserved.
# Copyright (c) 2009-2013 Kouhei Sutou. All rights reserved.
# License:: Ruby license.
require 'test/unit/assertion-failed-error'
require 'test/unit/util/backtracefilter'
require 'test/unit/util/method-owner-finder'
require 'test/unit/diff'
begin
require 'power_assert'
rescue LoadError, SyntaxError
end
module Test
module Unit
##
# Test::Unit::Assertions contains the standard Test::Unit assertions.
# Assertions is included in Test::Unit::TestCase.
#
# To include it in your own code and use its functionality, you simply
# need to rescue Test::Unit::AssertionFailedError. Additionally you may
# override add_assertion to get notified whenever an assertion is made.
#
# Notes:
#
# * The message to each assertion, if given, will be propagated with the
# failure.
# * It is easy to add your own assertions based on assert_block().
#
# @example Example Custom Assertion
#
# def deny(boolean, message = nil)
# message = build_message message, '<?> is not false or nil.', boolean
# assert_block message do
# not boolean
# end
# end
module Assertions
##
# The assertion upon which all other assertions are based. Passes if the
# block yields true.
#
# @example
# assert_block "Couldn't do the thing" do
# do_the_thing
# end
def assert_block(message="assert_block failed.")
_wrap_assertion do
if (! yield)
raise AssertionFailedError.new(message.to_s)
end
end
end
# @private
NOT_SPECIFIED = Object.new
# @overload assert(object, message=nil)
#
# Asserts that `object` is not false nor nil.
#
# Normally, you don't need to use this assertion. Use more
# specific assertions such as #assert_equal and
# #assert_include.
#
# @example Pass patterns
# assert(true) # => pass
# assert([1, 2].include?(1)) # => pass
#
# @example Failure patterns
# assert(nil) # => failure
# assert(false) # => failure
# assert([1, 2].include?(5)) # => failure
#
# @param [Object] object The check target.
# @param [String] message The additional user message. It is
# showed when the assertion is failed.
# @return [void]
#
# @overload assert(message=nil) {}
#
# Asserts that the givens block returns not false nor nil.
#
# This style uses Power Assert. It means that you can see each
# object values in method chains on failure. See the following
# example about Power Assert.
#
# @example Power Assert
# coins = [1, 5, 50]
# target_coin = 10
# assert do
# coins.include?(target_coin)
# end
# # =>
# # coins.include?(target_coin)
# # | | |
# # | | 10
# # | false
# # [1, 5, 50]
#
# We recommend you to use Power Assert for predicate method
# checks rather than existing assertions such as
# #assert_include and #assert_predicate. Power Assert shows
# useful message for debugging.
#
# We don't recommend you use Power Assert for equality
# check. You should use #assert_equal for the case. Because
# #assert_equal shows more useful message for debugging.
#
# @example Pass patterns
# assert {true} # => pass
# assert {[1, 2].include?(1)} # => pass
#
# @example Failure patterns
# assert {nil} # => failure
# assert {false} # => failure
# assert {[1, 2].include?(5)} # => failure
#
# @param [String] message The additional user message. It is
# showed when the assertion is failed.
# @yield [] Given no parameters to the block.
# @yieldreturn [Object] The checked object.
# @return [void]
def assert(object=NOT_SPECIFIED, message=nil, &block)
_wrap_assertion do
have_object = !NOT_SPECIFIED.equal?(object)
if block
message = object if have_object
if defined?(PowerAssert)
PowerAssert.start(block, :assertion_method => __callee__) do |pa|
pa_message = AssertionMessage.delayed_literal(&pa.message_proc)
assertion_message = build_message(message, "?", pa_message)
assert_block(assertion_message) do
pa.yield
end
end
else
assert(yield, message)
end
else
unless have_object
raise ArgumentError, "wrong number of arguments (0 for 1..2)"
end
assertion_message = nil
case message
when nil, String, Proc
when AssertionMessage
assertion_message = message
else
error_message = "assertion message must be String, Proc or "
error_message += "#{AssertionMessage}: "
error_message += "<#{message.inspect}>(<#{message.class}>)"
raise ArgumentError, error_message, filter_backtrace(caller)
end
assertion_message ||= build_message(message,
"<?> is not true.",
object)
assert_block(assertion_message) do
object
end
end
end
end
# Asserts that +object+ is false or nil.
#
# @note Just for minitest compatibility. :<
#
# @param [Object] object The object to be asserted.
# @return [void]
#
# @example Pass patterns
# refute(false) # => pass
# refute(nil) # => pass
#
# @example Failure patterns
# refute(true) # => failure
# refute("string") # => failure
#
# @since 2.5.3
def refute(object, message=nil)
_wrap_assertion do
assertion_message = nil
case message
when nil, String, Proc
when AssertionMessage
assertion_message = message
else
error_message = "assertion message must be String, Proc or "
error_message += "#{AssertionMessage}: "
error_message += "<#{message.inspect}>(<#{message.class}>)"
raise ArgumentError, error_message, filter_backtrace(caller)
end
assert_block("refute should not be called with a block.") do
!block_given?
end
assertion_message ||= build_message(message,
"<?> is neither nil or false.",
object)
assert_block(assertion_message) do
not object
end
end
end
##
# Passes if +expected+ == +actual+.
#
# Note that the ordering of arguments is important, since a helpful
# error message is generated when this one fails that tells you the
# values of expected and actual.
#
# @example
# assert_equal 'MY STRING', 'my string'.upcase
def assert_equal(expected, actual, message=nil)
diff = AssertionMessage.delayed_diff(expected, actual)
if expected.respond_to?(:encoding) and
actual.respond_to?(:encoding) and
expected.encoding != actual.encoding
format = <<EOT
<?>(?) expected but was
<?>(?).?
EOT
full_message = build_message(message, format,
expected, expected.encoding.name,
actual, actual.encoding.name,
diff)
else
full_message = build_message(message, <<EOT, expected, actual, diff)
<?> expected but was
<?>.?
EOT
end
begin
assert_block(full_message) { expected == actual }
rescue AssertionFailedError => failure
_set_failed_information(failure, expected, actual, message)
raise failure # For JRuby. :<
end
end
##
# Passes if the block raises one of the expected
# exceptions. When an expected exception is an Exception
# object, passes if expected_exception == actual_exception.
#
# @example
# assert_raise(RuntimeError, LoadError) do
# raise 'Boom!!!'
# end # -> pass
#
# assert_raise do
# raise Exception, 'Any exception should be raised!!!'
# end # -> pass
#
# assert_raise(RuntimeError.new("XXX")) {raise "XXX"} # -> pass
# assert_raise(MyError.new("XXX")) {raise "XXX"} # -> fail
# assert_raise(RuntimeError.new("ZZZ")) {raise "XXX"} # -> fail
def assert_raise(*args, &block)
assert_expected_exception = Proc.new do |*_args|
message, assert_exception_helper, actual_exception = _args
expected = assert_exception_helper.expected_exceptions
diff = AssertionMessage.delayed_diff(expected, actual_exception)
full_message = build_message(message,
"<?> exception expected but was\n<?>.?",
expected, actual_exception, diff)
begin
assert_block(full_message) do
expected == [] or
assert_exception_helper.expected?(actual_exception)
end
rescue AssertionFailedError => failure
_set_failed_information(failure, expected, actual_exception,
message)
raise failure # For JRuby. :<
end
end
_assert_raise(assert_expected_exception, *args, &block)
end
# Just for minitest compatibility. :<
alias_method :assert_raises, :assert_raise
##
# Passes if the block raises one of the given
# exceptions or sub exceptions of the given exceptions.
#
# @example
# assert_raise_kind_of(SystemCallError) do
# raise Errno::EACCES
# end
def assert_raise_kind_of(*args, &block)
assert_expected_exception = Proc.new do |*_args|
message, assert_exception_helper, actual_exception = _args
expected = assert_exception_helper.expected_exceptions
full_message = build_message(message,
"<?> family exception expected " +
"but was\n<?>.",
expected, actual_exception)
assert_block(full_message) do
assert_exception_helper.expected?(actual_exception, :kind_of?)
end
end
_assert_raise(assert_expected_exception, *args, &block)
end
##
# Passes if +object+.instance_of?(+klass+). When +klass+ is
# an array of classes, it passes if any class
# satisfies +object.instance_of?(class).
#
# @example
# assert_instance_of(String, 'foo') # -> pass
# assert_instance_of([Fixnum, NilClass], 100) # -> pass
# assert_instance_of([Numeric, NilClass], 100) # -> fail
def assert_instance_of(klass, object, message="")
_wrap_assertion do
if klass.is_a?(Array)
klasses = klass
else
klasses = [klass]
end
assert_block("The first parameter to assert_instance_of should be " +
"a Class or an Array of Class.") do
klasses.all? {|k| k.is_a?(Class)}
end
klass_message = AssertionMessage.maybe_container(klass) do |value|
"<#{value}>"
end
full_message = build_message(message, <<EOT, object, klass_message, object.class)
<?> was expected to be instance_of\\?
? but was
<?>.
EOT
assert_block(full_message) do
klasses.any? {|k| object.instance_of?(k)}
end
end
end
##
# Passes if +object+.instance_of?(+klass+) does not hold.
# When +klass+ is an array of classes, it passes if no class
# satisfies +object.instance_of?(class).
#
# @example
# assert_not_instance_of(String, 100) # -> pass
# assert_not_instance_of([Fixnum, NilClass], '100') # -> pass
# assert_not_instance_of([Numeric, NilClass], 100) # -> fail
#
# @since 3.0.0
def assert_not_instance_of(klass, object, message="")
_wrap_assertion do
if klass.is_a?(Array)
klasses = klass
else
klasses = [klass]
end
assert_block("The first parameter to assert_not_instance_of should be " +
"a Class or an Array of Class.") do
klasses.all? {|k| k.is_a?(Class)}
end
klass_message = AssertionMessage.maybe_container(klass) do |value|
"<#{value}>"
end
full_message = build_message(message,
"<?> was expected to not be instance_of\\?\n" +
"? but was.",
object,
klass_message)
assert_block(full_message) do
klasses.none? {|k| object.instance_of?(k)}
end
end
end
# Just for minitest compatibility. :<
#
# @since 3.0.0
alias_method :refute_instance_of, :assert_not_instance_of
##
# Passes if +object+ is nil.
#
# @example
# assert_nil [1, 2].uniq!
def assert_nil(object, message="")
full_message = build_message(message, <<EOT, object)
<?> was expected to be nil.
EOT
assert_block(full_message) { object.nil? }
end
##
# Passes if +object+.kind_of?(+klass+). When +klass+ is
# an array of classes or modules, it passes if any
# class or module satisfies +object.kind_of?(class_or_module).
#
# @example
# assert_kind_of(Object, 'foo') # -> pass
# assert_kind_of([Fixnum, NilClass], 100) # -> pass
# assert_kind_of([Fixnum, NilClass], "string") # -> fail
def assert_kind_of(klass, object, message="")
_wrap_assertion do
if klass.is_a?(Array)
klasses = klass
else
klasses = [klass]
end
assert_block("The first parameter to assert_kind_of should be " +
"a kind_of Module or an Array of a kind_of Module.") do
klasses.all? {|k| k.kind_of?(Module)}
end
klass_message = AssertionMessage.maybe_container(klass) do |value|
"<#{value}>"
end
full_message = build_message(message,
"<?> was expected to be kind_of\\?\n" +
"? but was\n" +
"<?>.",
object,
klass_message,
object.class)
assert_block(full_message) do
klasses.any? {|k| object.kind_of?(k)}
end
end
end
##
# Passes if +object+.kind_of?(+klass+) does not hold.
# When +klass+ is an array of classes or modules, it passes only if all
# classes (and modules) do not satisfy +object.kind_of?(class_or_module).
#
# @example
# assert_not_kind_of(Fixnum, 'foo') # -> pass
# assert_not_kind_of([Fixnum, NilClass], '0') # -> pass
# assert_not_kind_of([Fixnum, NilClass], 100) # -> fail
#
# @since 3.0.0
def assert_not_kind_of(klass, object, message="")
_wrap_assertion do
if klass.is_a?(Array)
klasses = klass
else
klasses = [klass]
end
assert_block("The first parameter to assert_not_kind_of should be " +
"a kind_of Module or an Array of a kind_of Module.") do
klasses.all? {|k| k.kind_of?(Module)}
end
klass_message = AssertionMessage.maybe_container(klass) do |value|
"<#{value}>"
end
full_message = build_message(message,
"<?> was expected to not be kind_of\\?\n" +
"? but was.",
object,
klass_message)
assert_block(full_message) do
klasses.none? {|k| object.kind_of?(k)}
end
end
end
# Just for minitest compatibility. :<
#
# @since 3.0.0
alias_method :refute_kind_of, :assert_not_kind_of
##
# Passes if +object+ .respond_to? +method+
#
# @example
# assert_respond_to 'bugbear', :slice
def assert_respond_to(object, method, message="")
_wrap_assertion do
full_message = build_message(message,
"<?>.kind_of\\?(Symbol) or\n" +
"<?>.respond_to\\?(:to_str) expected",
method, method)
assert_block(full_message) do
method.kind_of?(Symbol) or method.respond_to?(:to_str)
end
full_message = build_message(message,
"<?>.respond_to\\?(?) expected\n" +
"(Class: <?>)",
object, method, object.class)
assert_block(full_message) {object.respond_to?(method)}
end
end
##
# Passes if +object+ does not .respond_to? +method+.
#
# @example
# assert_not_respond_to('bugbear', :nonexistence) # -> pass
# assert_not_respond_to('bugbear', :size) # -> fail
def assert_not_respond_to(object, method, message="")
_wrap_assertion do
full_message = build_message(message,
"<?>.kind_of\\?(Symbol) or\n" +
"<?>.respond_to\\?(:to_str) expected",
method, method)
assert_block(full_message) do
method.kind_of?(Symbol) or method.respond_to?(:to_str)
end
full_message = build_message(message,
"!<?>.respond_to\\?(?) expected\n" +
"(Class: <?>)",
object, method, object.class)
assert_block(full_message) {!object.respond_to?(method)}
end
end
# Just for minitest compatibility. :<
#
# @since 2.5.3
alias_method :refute_respond_to, :assert_not_respond_to
##
# Passes if +pattern+ =~ +string+.
#
# @example
# assert_match(/\d+/, 'five, 6, seven')
def assert_match(pattern, string, message="")
_wrap_assertion do
pattern = case(pattern)
when String
Regexp.new(Regexp.escape(pattern))
else
pattern
end
full_message = build_message(message,
"<?> was expected to be =~\n<?>.",
pattern, string)
assert_block(full_message) { pattern =~ string }
end
end
##
# Passes if +actual+ .equal? +expected+ (i.e. they are the same
# instance).
#
# @example
# o = Object.new
# assert_same o, o
def assert_same(expected, actual, message="")
full_message = build_message(message, <<EOT, expected, expected.__id__, actual, actual.__id__)
<?>
with id <?> was expected to be equal\\? to
<?>
with id <?>.
EOT
assert_block(full_message) { actual.equal?(expected) }
end
##
# Compares the +object1+ with +object2+ using +operator+.
#
# Passes if object1.__send__(operator, object2) is true.
#
# @example
# assert_operator 5, :>=, 4
def assert_operator(object1, operator, object2, message="")
_wrap_assertion do
full_message = build_message(nil, "<?>\ngiven as the operator for #assert_operator must be a Symbol or #respond_to\\?(:to_str).", operator)
assert_block(full_message){operator.kind_of?(Symbol) || operator.respond_to?(:to_str)}
full_message = build_message(message, <<EOT, object1, AssertionMessage.literal(operator), object2)
<?> was expected to be
?
<?>.
EOT
assert_block(full_message) { object1.__send__(operator, object2) }
end
end
##
# Compares the +object1+ with +object2+ using +operator+.
#
# Passes if object1.__send__(operator, object2) is not true.
#
# @example
# assert_not_operator(5, :<, 4) # => pass
# assert_not_operator(5, :>, 4) # => fail
#
# @since 3.0.0
def assert_not_operator(object1, operator, object2, message="")
_wrap_assertion do
full_message = build_message(nil, "<?>\ngiven as the operator for #assert_not_operator must be a Symbol or #respond_to\\?(:to_str).", operator)
assert_block(full_message){operator.kind_of?(Symbol) || operator.respond_to?(:to_str)}
full_message = build_message(message, <<EOT, object1, AssertionMessage.literal(operator), object2)
<?> was expected to not be
?
<?>.
EOT
assert_block(full_message) { ! object1.__send__(operator, object2) }
end
end
# Just for minitest compatibility. :<
#
# @since 3.0.0
alias_method :refute_operator, :assert_not_operator
##
# Passes if block does not raise an exception.
#
# @example
# assert_nothing_raised do
# [1, 2].uniq
# end
def assert_nothing_raised(*args)
_wrap_assertion do
if args.last.is_a?(String)
message = args.pop
else
message = ""
end
assert_exception_helper = AssertExceptionHelper.new(self, args)
begin
yield
rescue Exception => e
if ((args.empty? && !e.instance_of?(AssertionFailedError)) ||
assert_exception_helper.expected?(e))
failure_message = build_message(message, "Exception raised:\n?", e)
assert_block(failure_message) {false}
else
raise
end
end
end
end
##
# Flunk always fails.
#
# @example
# flunk 'Not done testing yet.'
def flunk(message="Flunked")
assert_block(build_message(message)){false}
end
##
# Passes if ! +actual+ .equal? +expected+
#
# @example
# assert_not_same Object.new, Object.new
def assert_not_same(expected, actual, message="")
full_message = build_message(message, <<EOT, expected, expected.__id__, actual, actual.__id__)
<?>
with id <?> was expected to not be equal\\? to
<?>
with id <?>.
EOT
assert_block(full_message) { !actual.equal?(expected) }
end
# Just for minitest compatibility. :<
#
# @since 2.5.3
alias_method :refute_same, :assert_not_same
##
# Passes if +expected+ != +actual+
#
# @example
# assert_not_equal 'some string', 5
def assert_not_equal(expected, actual, message="")
full_message = build_message(message,
"<?> was expected to be != to\n<?>.",
expected, actual)
assert_block(full_message) { expected != actual }
end
# Just for minitest compatibility. :<
#
# @since 2.5.3
alias_method :refute_equal, :assert_not_equal
##
# Passes if ! +object+ .nil?
#
# @example
# assert_not_nil '1 two 3'.sub!(/two/, '2')
def assert_not_nil(object, message="")
full_message = build_message(message,
"<?> was expected to not be nil.",
object)
assert_block(full_message){!object.nil?}
end
# Just for minitest compatibility. :<
#
# @since 2.5.3
alias_method :refute_nil, :assert_not_nil
##
# Passes if +regexp+ !~ +string+
#
# @example
# assert_not_match(/two/, 'one 2 three') # -> pass
# assert_not_match(/three/, 'one 2 three') # -> fail
def assert_not_match(regexp, string, message="")
_wrap_assertion do
assert_instance_of(Regexp, regexp,
"<REGEXP> in assert_not_match(<REGEXP>, ...) " +
"should be a Regexp.")
full_message = build_message(message,
"<?> was expected to not match\n<?>.",
regexp, string)
assert_block(full_message) { regexp !~ string }
end
end
# Just for minitest compatibility. :<
#
# @since 2.5.3
alias_method :refute_match, :assert_not_match
##
# Deprecated. Use #assert_not_match instead.
#
# Passes if +regexp+ !~ +string+
#
# @example
# assert_no_match(/two/, 'one 2 three') # -> pass
# assert_no_match(/three/, 'one 2 three') # -> fail
def assert_no_match(regexp, string, message="")
_wrap_assertion do
assert_instance_of(Regexp, regexp,
"The first argument to assert_no_match " +
"should be a Regexp.")
assert_not_match(regexp, string, message)
end
end
# @private
class ThrowTagExtractor
@@have_uncaught_throw_error = const_defined?(:UncaughtThrowError)
UncaughtThrowPatterns = {
NameError => /^uncaught throw `(.+)'$/,
ArgumentError => /^uncaught throw (`.+'|.+)$/,
ThreadError => /^uncaught throw `(.+)' in thread /,
}
def initialize(error)
@error = error
end
def extract_tag
tag = nil
if @@have_uncaught_throw_error
return nil unless @error.is_a?(UncaughtThrowError)
tag = @error.tag
else
pattern = UncaughtThrowPatterns[@error.class]
return nil if pattern.nil?
return nil unless pattern =~ @error.message
tag = $1
end
normalize_tag(tag)
end
private
def normalize_tag(tag)
case tag
when /\A:/
tag[1..-1].intern
when /\A`(.+)'\z/
$1.intern
when String
tag.intern
else
tag
end
end
end
##
# Passes if the block throws +expected_object+
#
# @example
# assert_throw(:done) do
# throw(:done)
# end
def assert_throw(expected_object, message="", &proc)
_wrap_assertion do
begin
catch([]) {}
rescue TypeError
assert_instance_of(Symbol, expected_object,
"assert_throws expects the symbol that should be thrown for its first argument")
end
assert_block("Should have passed a block to assert_throw.") do
block_given?
end
caught = true
begin
catch(expected_object) do
proc.call
caught = false
end
full_message = build_message(message,
"<?> should have been thrown.",
expected_object)
assert_block(full_message) {caught}
rescue => error
extractor = ThrowTagExtractor.new(error)
tag = extractor.extract_tag
raise if tag.nil?
full_message = build_message(message,
"<?> was expected to be thrown but\n" +
"<?> was thrown.",
expected_object, tag)
flunk(full_message)
end
end
end
# Just for minitest compatibility. :<
#
# @since 2.5.3
alias_method :assert_throws, :assert_throw
##
# Passes if block does not throw anything.
#
# @example
# assert_nothing_thrown do
# [1, 2].uniq
# end
def assert_nothing_thrown(message="", &proc)
_wrap_assertion do
assert(block_given?, "Should have passed a block to assert_nothing_thrown")
begin
proc.call
rescue => error
extractor = ThrowTagExtractor.new(error)
tag = extractor.extract_tag
raise if tag.nil?
full_message = build_message(message,
"<?> was thrown when nothing was expected",
tag)
flunk(full_message)
end
assert(true, "Expected nothing to be thrown")
end
end
##
# Passes if +expected_float+ and +actual_float+ are equal
# within +delta+ tolerance.
#
# @example
# assert_in_delta 0.05, (50000.0 / 10**6), 0.00001
def assert_in_delta(expected_float, actual_float, delta=0.001, message="")
_wrap_assertion do
_assert_in_delta_validate_arguments(expected_float,
actual_float,
delta)
full_message = _assert_in_delta_message(expected_float,
actual_float,
delta,
message)
assert_block(full_message) do
(expected_float.to_f - actual_float.to_f).abs <= delta.to_f
end
end
end
##
# Passes if +expected_float+ and +actual_float+ are
# not equal within +delta+ tolerance.
#
# @example
# assert_not_in_delta(0.05, (50000.0 / 10**6), 0.00002) # -> pass
# assert_not_in_delta(0.05, (50000.0 / 10**6), 0.00001) # -> fail
def assert_not_in_delta(expected_float, actual_float, delta=0.001, message="")
_wrap_assertion do
_assert_in_delta_validate_arguments(expected_float,
actual_float,
delta)
full_message = _assert_in_delta_message(expected_float,
actual_float,
delta,
message,
:negative_assertion => true)
assert_block(full_message) do
(expected_float.to_f - actual_float.to_f).abs > delta.to_f
end
end
end
# Just for minitest compatibility. :<
#
# @since 2.5.3
alias_method :refute_in_delta, :assert_not_in_delta
private
def _assert_in_delta_validate_arguments(expected_float,
actual_float,
delta)
{
expected_float => "first float",
actual_float => "second float",
delta => "delta"
}.each do |float, name|
assert_respond_to(float, :to_f,
"The arguments must respond to to_f; " +
"the #{name} did not")
end
delta = delta.to_f
assert_operator(delta, :>=, 0.0, "The delta should not be negative")
end
def _assert_in_delta_message(expected_float, actual_float, delta,
message, options={})
if options[:negative_assertion]
format = <<-EOT
<?> -/+ <?> was expected to not include
<?>.
EOT
else
format = <<-EOT
<?> -/+ <?> was expected to include
<?>.
EOT
end
arguments = [expected_float, delta, actual_float]
normalized_expected = expected_float.to_f
normalized_actual = actual_float.to_f
normalized_delta = delta.to_f
relation_format = nil
relation_arguments = nil
if normalized_actual < normalized_expected - normalized_delta
relation_format = "<<?> < <?>-<?>[?] <= <?>+<?>[?]>"
relation_arguments = [actual_float,
expected_float, delta,
normalized_expected - normalized_delta,
expected_float, delta,
normalized_expected + normalized_delta]
elsif normalized_actual <= normalized_expected + normalized_delta
relation_format = "<<?>-<?>[?] <= <?> <= <?>+<?>[?]>"
relation_arguments = [expected_float, delta,
normalized_expected - normalized_delta,
actual_float,
expected_float, delta,
normalized_expected + normalized_delta]
else
relation_format = "<<?>-<?>[?] <= <?>+<?>[?] < <?>>"
relation_arguments = [expected_float, delta,
normalized_expected - normalized_delta,
expected_float, delta,
normalized_expected + normalized_delta,
actual_float]
end
if relation_format
format += <<-EOT
Relation:
#{relation_format}
EOT
arguments.concat(relation_arguments)
end
build_message(message, format, *arguments)
end
public
##
# Passes if +expected_float+ and +actual_float+ are equal
# within +epsilon+ relative error of +expected_float+.
#
# @example
# assert_in_epsilon(10000.0, 9900.0, 0.1) # -> pass
# assert_in_epsilon(10000.0, 9899.0, 0.1) # -> fail
def assert_in_epsilon(expected_float, actual_float, epsilon=0.001,
message="")
_wrap_assertion do
_assert_in_epsilon_validate_arguments(expected_float,
actual_float,
epsilon)
full_message = _assert_in_epsilon_message(expected_float,
actual_float,
epsilon,
message)
assert_block(full_message) do
normalized_expected_float = expected_float.to_f
if normalized_expected_float.zero?
delta = epsilon.to_f ** 2
else
delta = normalized_expected_float * epsilon.to_f
end
delta = delta.abs
(normalized_expected_float - actual_float.to_f).abs <= delta
end
end
end
##
# Passes if +expected_float+ and +actual_float+ are
# not equal within +epsilon+ relative error of
# +expected_float+.
#
# @example
# assert_not_in_epsilon(10000.0, 9900.0, 0.1) # -> fail
# assert_not_in_epsilon(10000.0, 9899.0, 0.1) # -> pass
def assert_not_in_epsilon(expected_float, actual_float, epsilon=0.001,
message="")
_wrap_assertion do
_assert_in_epsilon_validate_arguments(expected_float,
actual_float,
epsilon)
full_message = _assert_in_epsilon_message(expected_float,
actual_float,
epsilon,
message,
:negative_assertion => true)
assert_block(full_message) do
normalized_expected_float = expected_float.to_f
delta = normalized_expected_float * epsilon.to_f
(normalized_expected_float - actual_float.to_f).abs > delta
end
end
end
# Just for minitest compatibility. :<
#
# @since 3.0.0
alias_method :refute_in_epsilon, :assert_not_in_epsilon
private
def _assert_in_epsilon_validate_arguments(expected_float,
actual_float,
epsilon)
{
expected_float => "first float",
actual_float => "second float",
epsilon => "epsilon"
}.each do |float, name|
assert_respond_to(float, :to_f,
"The arguments must respond to to_f; " +
"the #{name} did not")
end
epsilon = epsilon.to_f
assert_operator(epsilon, :>=, 0.0, "The epsilon should not be negative")
end
def _assert_in_epsilon_message(expected_float, actual_float, epsilon,
message, options={})
normalized_expected = expected_float.to_f
normalized_actual = actual_float.to_f
normalized_epsilon = epsilon.to_f
delta = normalized_expected * normalized_epsilon
if options[:negative_assertion]
format = <<-EOT
<?> -/+ (<?> * <?>)[?] was expected to not include
<?>.
EOT
else
format = <<-EOT
<?> -/+ (<?> * <?>)[?] was expected to include
<?>.
EOT
end
arguments = [expected_float, expected_float, epsilon, delta,
actual_float]
relation_format = nil
relation_arguments = nil
if normalized_actual < normalized_expected - delta
relation_format = "<<?> < <?>-(<?>*<?>)[?] <= <?>+(<?>*<?>)[?]>"
relation_arguments = [actual_float,
expected_float, expected_float, epsilon,
normalized_expected - delta,
expected_float, expected_float, epsilon,
normalized_expected + delta]
elsif normalized_actual <= normalized_expected + delta
relation_format = "<<?>-(<?>*<?>)[?] <= <?> <= <?>+(<?>*<?>)[?]>"
relation_arguments = [expected_float, expected_float, epsilon,
normalized_expected - delta,
actual_float,
expected_float, expected_float, epsilon,
normalized_expected + delta]
else
relation_format = "<<?>-(<?>*<?>)[?] <= <?>+(<?>*<?>)[?] < <?>>"
relation_arguments = [expected_float, expected_float, epsilon,
normalized_expected - delta,
expected_float, expected_float, epsilon,
normalized_expected + delta,
actual_float]
end
if relation_format
format += <<-EOT
Relation:
#{relation_format}
EOT
arguments.concat(relation_arguments)
end
build_message(message, format, *arguments)
end
public
##
# 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
def assert_send(send_array, message=nil)
_wrap_assertion do
assert_instance_of(Array, send_array,
"assert_send requires an array " +
"of send information")
assert_operator(send_array.size, :>=, 2,
"assert_send requires at least a receiver " +
"and a message name")
format = <<EOT
<?> was expected to respond to
<?(*?)> with a true value but was
<?>.
EOT
receiver, message_name, *arguments = send_array
result = nil
full_message =
build_message(message,
format,
receiver,
AssertionMessage.literal(message_name.to_s),
arguments,
AssertionMessage.delayed_literal {result})
assert_block(full_message) do
result = receiver.__send__(message_name, *arguments)
result
end
end
end
##
# 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
def assert_not_send(send_array, message=nil)
_wrap_assertion do
assert_instance_of(Array, send_array,
"assert_not_send requires an array " +
"of send information")
assert_operator(send_array.size, :>=, 2,
"assert_not_send requires at least a receiver " +
"and a message name")
format = <<EOT
<?> was expected to respond to
<?(*?)> with not a true value but was
<?>.
EOT
receiver, message_name, *arguments = send_array
result = nil
full_message =
build_message(message,
format,
receiver,
AssertionMessage.literal(message_name.to_s),
arguments,
AssertionMessage.delayed_literal {result})
assert_block(full_message) do
result = receiver.__send__(message_name, *arguments)
not result
end
end
end
##
# Passes if +actual+ is a boolean value.
#
# @example
# assert_boolean(true) # -> pass
# assert_boolean(nil) # -> fail
def assert_boolean(actual, message=nil)
_wrap_assertion do
assert_block(build_message(message,
"<true> or <false> expected but was\n<?>",
actual)) do
[true, false].include?(actual)
end
end
end
##
# Passes if +actual+ is true.
#
# @example
# assert_true(true) # -> pass
# assert_true(:true) # -> fail
def assert_true(actual, message=nil)
_wrap_assertion do
assert_block(build_message(message,
"<true> expected but was\n<?>",
actual)) do
actual == true
end
end
end
##
# Passes if +actual+ is false.
#
# @example
# assert_false(false) # -> pass
# assert_false(nil) # -> fail
def assert_false(actual, message=nil)
_wrap_assertion do
assert_block(build_message(message,
"<false> expected but was\n<?>",
actual)) do
actual == false
end
end
end
##
# Passes if expression "+expected+ +operator+
# +actual+" is true.
#
# @example
# assert_compare(1, "<", 10) # -> pass
# assert_compare(1, ">=", 10) # -> fail
def assert_compare(expected, operator, actual, message=nil)
_wrap_assertion do
assert_send([["<", "<=", ">", ">="], :include?, operator.to_s])
case operator.to_s
when "<"
operator_description = "less than"
when "<="
operator_description = "less than or equal to"
when ">"
operator_description = "greater than"
when ">="
operator_description = "greater than or equal to"
end
template = <<-EOT
<?> #{operator} <?> should be true
<?> was expected to be #{operator_description}
<?>.
EOT
full_message = build_message(message, template,
expected, actual,
expected, actual)
assert_block(full_message) do
expected.__send__(operator, actual)
end
end
end
##
# Passes if assertion is failed in block.
#
# @example
# assert_fail_assertion {assert_equal("A", "B")} # -> pass
# assert_fail_assertion {assert_equal("A", "A")} # -> fail
def assert_fail_assertion(message=nil)
_wrap_assertion do
full_message = build_message(message,
"Failed assertion was expected.")
assert_block(full_message) do
begin
yield
false
rescue AssertionFailedError
true
end
end
end
end
##
# Passes if an exception is raised in block and its
# message is +expected+.
#
# @example
# assert_raise_message("exception") {raise "exception"} # -> pass
# assert_raise_message(/exc/i) {raise "exception"} # -> pass
# assert_raise_message("exception") {raise "EXCEPTION"} # -> fail
# assert_raise_message("exception") {} # -> fail
def assert_raise_message(expected, message=nil)
_wrap_assertion do
full_message = build_message(message,
"<?> exception message was expected " +
"but none was thrown.",
expected)
exception = nil
assert_block(full_message) do
begin
yield
false
rescue Exception => exception
true
end
end
actual = exception.message
diff = AssertionMessage.delayed_diff(expected, actual)
full_message =
build_message(message,
"<?> exception message expected but was\n" +
"<?>.?", expected, actual, diff)
assert_block(full_message) do
if expected.is_a?(Regexp)
expected =~ actual
else
expected == actual
end
end
end
end
##
# Passes if +object+.const_defined?(+constant_name+)
#
# @example
# assert_const_defined(Test, :Unit) # -> pass
# assert_const_defined(Object, :Nonexistent) # -> fail
def assert_const_defined(object, constant_name, message=nil)
_wrap_assertion do
full_message = build_message(message,
"<?>.const_defined\\?(<?>) expected.",
object, constant_name)
assert_block(full_message) do
object.const_defined?(constant_name)
end
end
end
##
# Passes if !+object+.const_defined?(+constant_name+)
#
# @example
# assert_not_const_defined(Object, :Nonexistent) # -> pass
# assert_not_const_defined(Test, :Unit) # -> fail
def assert_not_const_defined(object, constant_name, message=nil)
_wrap_assertion do
full_message = build_message(message,
"!<?>.const_defined\\?(<?>) expected.",
object, constant_name)
assert_block(full_message) do
!object.const_defined?(constant_name)
end
end
end
##
# Passes if +object+.+predicate+ is _true_.
#
# @example
# assert_predicate([], :empty?) # -> pass
# assert_predicate([1], :empty?) # -> fail
def assert_predicate(object, predicate, message=nil)
_wrap_assertion do
assert_respond_to(object, predicate, message)
actual = object.__send__(predicate)
full_message = build_message(message,
"<?>.? is true value expected but was\n" +
"<?>",
object,
AssertionMessage.literal(predicate),
actual)
assert_block(full_message) do
actual
end
end
end
##
# Passes if +object+.+predicate+ is not _true_.
#
# @example
# assert_not_predicate([1], :empty?) # -> pass
# assert_not_predicate([], :empty?) # -> fail
def assert_not_predicate(object, predicate, message=nil)
_wrap_assertion do
assert_respond_to(object, predicate, message)
actual = object.__send__(predicate)
full_message = build_message(message,
"<?>.? is false value expected but was\n" +
"<?>",
object,
AssertionMessage.literal(predicate),
actual)
assert_block(full_message) do
not actual
end
end
end
# Just for minitest compatibility. :<
#
# @since 3.0.0
alias_method :refute_predicate, :assert_not_predicate
##
# Passes if +object+#+alias_name+ is an alias method of
# +object+#+original_name+.
#
# @example
# assert_alias_method([], :length, :size) # -> pass
# assert_alias_method([], :size, :length) # -> pass
# assert_alias_method([], :each, :size) # -> fail
def assert_alias_method(object, alias_name, original_name, message=nil)
_wrap_assertion do
find_method_failure_message = Proc.new do |method_name|
build_message(message,
"<?>.? doesn't exist\n" +
"(Class: <?>)",
object,
AssertionMessage.literal(method_name),
object.class)
end
alias_method = original_method = nil
assert_block(find_method_failure_message.call(alias_name)) do
begin
alias_method = object.method(alias_name)
true
rescue NameError
false
end
end
assert_block(find_method_failure_message.call(original_name)) do
begin
original_method = object.method(original_name)
true
rescue NameError
false
end
end
full_message = build_message(message,
"<?> is alias of\n" +
"<?> expected",
alias_method,
original_method)
assert_block(full_message) do
alias_method == original_method
end
end
end
##
# Passes if +path+ exists.
#
# @example
# assert_path_exist("/tmp") # -> pass
# assert_path_exist("/bin/sh") # -> pass
# assert_path_exist("/nonexistent") # -> fail
def assert_path_exist(path, message=nil)
_wrap_assertion do
failure_message = build_message(message,
"<?> was expected to exist",
path)
assert_block(failure_message) do
File.exist?(path)
end
end
end
##
# Passes if +path+ doesn't exist.
#
# @example
# assert_path_not_exist("/nonexistent") # -> pass
# assert_path_not_exist("/tmp") # -> fail
# assert_path_not_exist("/bin/sh") # -> fail
def assert_path_not_exist(path, message=nil)
_wrap_assertion do
failure_message = build_message(message,
"<?> was expected to not exist",
path)
assert_block(failure_message) do
not File.exist?(path)
end
end
end
##
# Passes if +collection+ includes +object+.
#
# @example
# assert_include([1, 10], 1) # -> pass
# assert_include(1..10, 5) # -> pass
# assert_include([1, 10], 5) # -> fail
# assert_include(1..10, 20) # -> fail
def assert_include(collection, object, message=nil)
_wrap_assertion do
assert_respond_to(collection, :include?,
"The collection must respond to :include?.")
full_message = build_message(message,
"<?> was expected to include\n<?>.",
collection,
object)
assert_block(full_message) do
collection.include?(object)
end
end
end
# Just for minitest compatibility. :<
#
# @since 2.5.3
alias_method :assert_includes, :assert_include
##
# Passes if +collection+ doesn't include +object+.
#
# @example
# assert_not_include([1, 10], 5) # -> pass
# assert_not_include(1..10, 20) # -> pass
# assert_not_include([1, 10], 1) # -> fail
# assert_not_include(1..10, 5) # -> fail
def assert_not_include(collection, object, message=nil)
_wrap_assertion do
assert_respond_to(collection, :include?,
"The collection must respond to :include?.")
full_message = build_message(message,
"<?> was expected to not include\n<?>.",
collection,
object)
assert_block(full_message) do
not collection.include?(object)
end
end
end
# Just for minitest compatibility. :<
#
# @since 3.0.0
alias_method :assert_not_includes, :assert_not_include
# Just for minitest compatibility. :<
#
# @since 3.0.0
alias_method :refute_includes, :assert_not_include
##
# Passes if +object+ is empty.
#
# @example
# assert_empty("") # -> pass
# assert_empty([]) # -> pass
# assert_empty({}) # -> pass
# assert_empty(" ") # -> fail
# assert_empty([nil]) # -> fail
# assert_empty({1 => 2}) # -> fail
def assert_empty(object, message=nil)
_wrap_assertion do
assert_respond_to(object, :empty?,
"The object must respond to :empty?.")
full_message = build_message(message,
"<?> was expected to be empty.",
object)
assert_block(full_message) do
object.empty?
end
end
end
##
# Passes if +object+ is not empty.
#
# @example
# assert_not_empty(" ") # -> pass
# assert_not_empty([nil]) # -> pass
# assert_not_empty({1 => 2}) # -> pass
# assert_not_empty("") # -> fail
# assert_not_empty([]) # -> fail
# assert_not_empty({}) # -> fail
def assert_not_empty(object, message=nil)
_wrap_assertion do
assert_respond_to(object, :empty?,
"The object must respond to :empty?.")
full_message = build_message(message,
"<?> was expected to not be empty.",
object)
assert_block(full_message) do
not object.empty?
end
end
end
# Just for minitest compatibility. :<
#
# @since 3.0.0
alias_method :refute_empty, :assert_not_empty
##
# Builds a failure message. +head+ is added before the +template+ and
# +arguments+ replaces the '?'s positionally in the template.
def build_message(head, template=nil, *arguments)
template &&= template.chomp
return AssertionMessage.new(head, template, arguments)
end
private
def _wrap_assertion(&block)
@_assertion_wrapped ||= false
if @_assertion_wrapped
block.call
else
@_assertion_wrapped = true
begin
add_assertion
block.call
ensure
@_assertion_wrapped = false
end
end
end
public
# Called whenever an assertion is made. Define this in classes
# that include Test::Unit::Assertions to record assertion
# counts.
#
# This is a public API for developers who extend test-unit.
#
# @return [void]
def add_assertion
end
##
# Select whether or not to use the pretty-printer. If this option is set
# to false before any assertions are made, pp.rb will not be required.
def self.use_pp=(value)
AssertionMessage.use_pp = value
end
private
def _assert_raise(assert_expected_exception, *args, &block)
_wrap_assertion do
if args.last.is_a?(String)
message = args.pop
else
message = ""
end
assert_exception_helper = AssertExceptionHelper.new(self, args)
expected = assert_exception_helper.expected_exceptions
actual_exception = nil
full_message = build_message(message,
"<?> exception was expected " +
"but none was thrown.",
expected)
assert_block(full_message) do
begin
yield
false
rescue Exception => actual_exception
true
end
end
assert_expected_exception.call(message, assert_exception_helper,
actual_exception)
actual_exception
end
end
def _set_failed_information(failure, expected, actual, user_message)
failure.expected = expected
failure.actual = actual
failure.inspected_expected = AssertionMessage.convert(expected)
failure.inspected_actual = AssertionMessage.convert(actual)
failure.user_message = user_message
end
class AssertionMessage
@use_pp = true
class << self
attr_accessor :use_pp
def literal(value)
Literal.new(value)
end
def delayed_literal(&block)
DelayedLiteral.new(block)
end
def maybe_container(value, &formatter)
MaybeContainer.new(value, &formatter)
end
MAX_DIFF_TARGET_STRING_SIZE = 1000
def max_diff_target_string_size
return @@max_diff_target_string_size if @@max_diff_target_string_size
size = ENV["TEST_UNIT_MAX_DIFF_TARGET_STRING_SIZE"]
if size
begin
size = Integer(size)
rescue ArgumentError
size = nil
end
end
size || MAX_DIFF_TARGET_STRING_SIZE
end
@@max_diff_target_string_size = nil
def max_diff_target_string_size=(size)
@@max_diff_target_string_size = size
end
def diff_target_string?(string)
if string.respond_to?(:bytesize)
string.bytesize < max_diff_target_string_size
else
string.size < max_diff_target_string_size
end
end
def ensure_diffable_string(string)
if string.respond_to?(:encoding) and
!string.encoding.ascii_compatible?
string = string.dup.force_encoding("ASCII-8BIT")
end
string
end
def prepare_for_diff(from, to)
if !from.is_a?(String) or !to.is_a?(String)
from = convert(from)
to = convert(to)
end
if diff_target_string?(from) and diff_target_string?(to)
from = ensure_diffable_string(from)
to = ensure_diffable_string(to)
[from, to]
else
[nil, nil]
end
end
def delayed_diff(from, to)
delayed_literal do
from, to = prepare_for_diff(from, to)
diff = "" if from.nil? or to.nil?
diff ||= Diff.readable(from, to)
if /^[-+]/ !~ diff
diff = ""
elsif /^[ ?]/ =~ diff or /(?:.*\n){2,}/ =~ diff
diff = "\n\ndiff:\n#{diff}"
else
diff = ""
end
if Diff.need_fold?(diff)
folded_diff = Diff.folded_readable(from, to)
diff += "\n\nfolded diff:\n#{folded_diff}"
end
diff
end
end
def convert(object)
if object.is_a?(Exception)
object = AssertExceptionHelper::WrappedException.new(object)
end
inspector = Inspector.new(object)
if use_pp
begin
require "pp" unless defined?(PP)
begin
return PP.pp(inspector, String.new).chomp
rescue NameError
end
rescue LoadError
self.use_pp = false
end
end
inspector.inspect
end
end
class Inspector
include Comparable
class << self
def cached_new(object, inspected_objects)
inspected_objects[object.object_id] ||=
new(object, inspected_objects)
end
@@inspector_classes = []
def inspector_classes
@@inspector_classes
end
def register_inspector_class(inspector_class)
@@inspector_classes << inspector_class
end
def unregister_inspector_class(inspector_class)
@@inspector_classes.delete(inspector_class)
end
end
attr_reader :object
def initialize(object, inspected_objects={})
@inspected_objects = inspected_objects
@object = object
@inspected_objects[@object.object_id] = self
@inspect_target = inspect_target
end
alias_method :native_inspect, :inspect
def inspect
@inspect_target.inspect
end
def pretty_print(q)
@inspect_target.pretty_print(q)
end
def pretty_print_cycle(q)
@inspect_target.pretty_print_cycle(q)
end
def <=>(other)
if other.is_a?(self.class)
@object <=> other.object
else
@object <=> other
end
end
private
def inspect_target
self.class.inspector_classes.each do |inspector_class|
if inspector_class.target?(@object)
return inspector_class.new(@object, @inspected_objects)
end
end
@object
end
end
class NumericInspector
Inspector.register_inspector_class(self)
class << self
def target?(object)
object.is_a?(Numeric)
end
end
def initialize(numeric, inspected_objects)
@inspected_objects = inspected_objects
@numeric = numeric
end
def inspect
@numeric.to_s
end
def pretty_print(q)
q.text(@numeric.to_s)
end
def pretty_print_cycle(q)
q.text(@numeric.to_s)
end
end
class HashInspector
Inspector.register_inspector_class(self)
class << self
def target?(object)
object.is_a?(Hash) or ENV.equal?(object)
end
end
def initialize(hash, inspected_objects)
@inspected_objects = inspected_objects
@hash = {}
hash.each do |key, value|
key = Inspector.cached_new(key, @inspected_objects)
value = Inspector.cached_new(value, @inspected_objects)
@hash[key] = value
end
end
def inspect
@hash.inspect
end
def pretty_print(q)
q.group(1, '{', '}') do
q.seplist(self, nil, :each_pair) do |k, v|
q.group do
q.pp(k)
q.text('=>')
q.group(1) do
q.breakable('')
q.pp(v)
end
end
end
end
end
def pretty_print_cycle(q)
@hash.pretty_print_cycle(q)
end
def each_pair
keys = @hash.keys
begin
keys = keys.sort # FIXME: more cleverly
rescue ArgumentError
end
keys.each do |key|
yield(key, @hash[key])
end
end
end
class ArrayInspector
Inspector.register_inspector_class(self)
class << self
def target?(object)
object.is_a?(Array)
end
end
def initialize(array, inspected_objects)
@inspected_objects = inspected_objects
@array = array.collect do |element|
Inspector.cached_new(element, @inspected_objects)
end
end
def inspect
@array.inspect
end
def pretty_print(q)
q.group(1, '[', ']') do
q.seplist(self) do |v|
q.pp(v)
end
end
end
def pretty_print_cycle(q)
@array.pretty_print_cycle(q)
end
def each(&block)
@array.each(&block)
end
end
class Literal
def initialize(value)
@value = value
end
def inspect
@value.to_s
end
end
class DelayedLiteral
def initialize(value)
@value = value
end
def inspect
@value.call.to_s
end
end
class MaybeContainer
def initialize(value, &formatter)
@value = value
@formatter = formatter
end
def inspect
if @value.is_a?(Array)
values = @value.collect do |value|
@formatter.call(AssertionMessage.convert(value))
end
"[#{values.join(', ')}]"
else
@formatter.call(AssertionMessage.convert(@value))
end
end
end
class Template
def self.create(string)
parts = (string ? string.scan(/(?=[^\\])\?|(?:\\\?|[^\?])+/m) : [])
self.new(parts)
end
attr_reader :count
def initialize(parts)
@parts = parts
@count = parts.find_all{|e| e == '?'}.size
end
def result(parameters)
raise "The number of parameters does not match the number of substitutions." if(parameters.size != count)
params = parameters.dup
expanded_template = ""
@parts.each do |part|
if part == '?'
param = params.shift
if Object.const_defined?(:Encoding)
expanded_template += concatenatable(param,
expanded_template.encoding)
else
expanded_template += param
end
else
expanded_template += part.gsub(/\\\?/m, '?')
end
end
expanded_template
end
private
def concatenatable(text, encoding)
if Encoding.compatible?(text, encoding)
text
else
text.dup.force_encoding(encoding)
end
end
end
include Util::BacktraceFilter
def initialize(head, template_string, parameters)
@head = head
@template_string = template_string
@parameters = parameters
end
def convert(object)
self.class.convert(object)
end
def template
@template ||= Template.create(@template_string)
end
def add_period(string)
(string =~ /\.\Z/ ? string : string + '.')
end
def to_s
message_parts = []
if (@head)
head = @head
head = head.call if head.respond_to?(:call)
head = head.to_s
unless(head.empty?)
message_parts << add_period(head)
end
end
tail = template.result(@parameters.collect{|e| convert(e)})
message_parts << tail unless(tail.empty?)
message_parts.join("\n")
end
end
class AssertExceptionHelper
class WrappedException
attr_reader :exception
def initialize(exception)
@exception = exception
end
def inspect
if default_inspect?
"#{@exception.class.inspect}(<#{@exception.message}>)"
else
@exception.inspect
end
end
def method_missing(name, *args, &block)
@exception.__send__(name, *args, &block)
end
private
def default_inspect?
inspect_method = @exception.method(:inspect)
if inspect_method.respond_to?(:owner) and
inspect_method.owner == Exception
true
else
default_inspect_method = Exception.instance_method(:inspect)
default_inspect_method.bind(@exception).call == @exception.inspect
end
end
end
def initialize(test_case, expected_exceptions)
@test_case = test_case
@expected_exceptions = expected_exceptions
@expected_classes, @expected_modules, @expected_objects =
split_expected_exceptions(expected_exceptions)
end
def expected_exceptions
exceptions = @expected_exceptions.collect do |exception|
if exception.is_a?(Exception)
WrappedException.new(exception)
else
exception
end
end
if exceptions.size == 1
exceptions[0]
else
exceptions
end
end
def expected?(actual_exception, equality=nil)
equality ||= :instance_of?
expected_class?(actual_exception, equality) or
expected_module?(actual_exception) or
expected_object?(actual_exception)
end
private
def split_expected_exceptions(expected_exceptions)
exception_modules = []
exception_objects = []
exception_classes = []
expected_exceptions.each do |exception_type|
if exception_type.instance_of?(Module)
exception_modules << exception_type
elsif exception_object?(exception_type)
exception_objects << exception_type
elsif exception_class?(exception_type)
exception_classes << exception_type
else
full_message =
@test_case.__send__(:build_message,
nil,
"<?> must be " +
"a subclass of Exception, " +
"an object of Exception subclasses " +
"or a Module",
exception_type)
@test_case.flunk(full_message)
end
end
[exception_classes, exception_modules, exception_objects]
end
def exception_object?(exception_type)
return true if exception_type.is_a?(Exception)
if Object.const_defined?(:Java)
return true if exception_type.is_a?(Java::JavaLang::Throwable)
end
false
end
def exception_class?(exception_type)
return true if exception_type <= Exception
if Object.const_defined?(:Java)
return true if exception_type <= Java::JavaLang::Throwable
end
false
end
def expected_class?(actual_exception, equality)
@expected_classes.any? do |expected_class|
actual_exception.__send__(equality, expected_class)
end
end
def expected_module?(actual_exception)
@expected_modules.any? do |expected_module|
actual_exception.is_a?(expected_module)
end
end
def expected_object?(actual_exception)
@expected_objects.any? do |expected_object|
expected_object == actual_exception or
fallback_exception_object_equal(expected_object, actual_exception)
end
end
def fallback_exception_object_equal(expected_object, actual_exception)
owner = Util::MethodOwnerFinder.find(expected_object, :==)
if owner == Kernel or owner == Exception
expected_object.class == actual_exception.class and
expected_object.message == actual_exception.message
else
false
end
end
end
# :startdoc:
end
end
end
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