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Diffstat (limited to 'test/lib/minitest/mock.rb')
| -rw-r--r-- | test/lib/minitest/mock.rb | 196 |
1 files changed, 0 insertions, 196 deletions
diff --git a/test/lib/minitest/mock.rb b/test/lib/minitest/mock.rb deleted file mode 100644 index 224b06cb89..0000000000 --- a/test/lib/minitest/mock.rb +++ /dev/null @@ -1,196 +0,0 @@ -# encoding: utf-8 -# frozen_string_literal: true - -class MockExpectationError < StandardError; end # :nodoc: - -## -# A simple and clean mock object framework. - -module MiniTest # :nodoc: - - ## - # All mock objects are an instance of Mock - - class Mock - alias :__respond_to? :respond_to? - - skip_methods = %w(object_id respond_to_missing? inspect === to_s) - - instance_methods.each do |m| - undef_method m unless skip_methods.include?(m.to_s) || m =~ /^__/ - end - - def initialize # :nodoc: - @expected_calls = Hash.new { |calls, name| calls[name] = [] } - @actual_calls = Hash.new { |calls, name| calls[name] = [] } - end - - ## - # Expect that method +name+ is called, optionally with +args+ or a - # +blk+, and returns +retval+. - # - # @mock.expect(:meaning_of_life, 42) - # @mock.meaning_of_life # => 42 - # - # @mock.expect(:do_something_with, true, [some_obj, true]) - # @mock.do_something_with(some_obj, true) # => true - # - # @mock.expect(:do_something_else, true) do |a1, a2| - # a1 == "buggs" && a2 == :bunny - # end - # - # +args+ is compared to the expected args using case equality (ie, the - # '===' operator), allowing for less specific expectations. - # - # @mock.expect(:uses_any_string, true, [String]) - # @mock.uses_any_string("foo") # => true - # @mock.verify # => true - # - # @mock.expect(:uses_one_string, true, ["foo"] - # @mock.uses_one_string("bar") # => true - # @mock.verify # => raises MockExpectationError - - def expect(name, retval, args=[], &blk) - if block_given? - raise ArgumentError, "args ignored when block given" unless args.empty? - @expected_calls[name] << { :retval => retval, :block => blk } - else - raise ArgumentError, "args must be an array" unless Array === args - @expected_calls[name] << { :retval => retval, :args => args } - end - self - end - - def __call name, data # :nodoc: - case data - when Hash then - "#{name}(#{data[:args].inspect[1..-2]}) => #{data[:retval].inspect}" - else - data.map { |d| __call name, d }.join ", " - end - end - - ## - # Verify that all methods were called as expected. Raises - # +MockExpectationError+ if the mock object was not called as - # expected. - - def verify - @expected_calls.each do |name, calls| - calls.each do |expected| - msg1 = "expected #{__call name, expected}" - msg2 = "#{msg1}, got [#{__call name, @actual_calls[name]}]" - - raise MockExpectationError, msg2 if - @actual_calls.has_key?(name) and - not @actual_calls[name].include?(expected) - - raise MockExpectationError, msg1 unless - @actual_calls.has_key?(name) and - @actual_calls[name].include?(expected) - end - end - true - end - - def method_missing(sym, *args) # :nodoc: - unless @expected_calls.has_key?(sym) then - raise NoMethodError, "unmocked method %p, expected one of %p" % - [sym, @expected_calls.keys.sort_by(&:to_s)] - end - - index = @actual_calls[sym].length - expected_call = @expected_calls[sym][index] - - unless expected_call then - raise MockExpectationError, "No more expects available for %p: %p" % - [sym, args] - end - - expected_args, retval, val_block = - expected_call.values_at(:args, :retval, :block) - - if val_block then - raise MockExpectationError, "mocked method %p failed block w/ %p" % - [sym, args] unless val_block.call(args) - - # keep "verify" happy - @actual_calls[sym] << expected_call - return retval - end - - if expected_args.size != args.size then - raise ArgumentError, "mocked method %p expects %d arguments, got %d" % - [sym, expected_args.size, args.size] - end - - fully_matched = expected_args.zip(args).all? { |mod, a| - mod === a or mod == a - } - - unless fully_matched then - raise MockExpectationError, "mocked method %p called with unexpected arguments %p" % - [sym, args] - end - - @actual_calls[sym] << { - :retval => retval, - :args => expected_args.zip(args).map { |mod, a| mod === a ? mod : a } - } - - retval - end - - def respond_to?(sym, include_private = false) # :nodoc: - return true if @expected_calls.has_key?(sym.to_sym) - return __respond_to?(sym, include_private) - end - end -end - -class Object # :nodoc: - - ## - # Add a temporary stubbed method replacing +name+ for the duration - # of the +block+. If +val_or_callable+ responds to #call, then it - # returns the result of calling it, otherwise returns the value - # as-is. Cleans up the stub at the end of the +block+. The method - # +name+ must exist before stubbing. - # - # def test_stale_eh - # obj_under_test = Something.new - # refute obj_under_test.stale? - # - # Time.stub :now, Time.at(0) do - # assert obj_under_test.stale? - # end - # end - - def stub name, val_or_callable, &block - new_name = "__minitest_stub__#{name}" - - metaclass = class << self; self; end - - if respond_to? name and not methods.map(&:to_s).include? name.to_s then - metaclass.send :define_method, name do |*args| - super(*args) - end - end - - metaclass.send :alias_method, new_name, name - - metaclass.send :define_method, name do |*args| - if val_or_callable.respond_to? :call then - val_or_callable.call(*args) - else - val_or_callable - end - end - - yield self - ensure - metaclass.send :undef_method, name - metaclass.send :alias_method, name, new_name - metaclass.send :undef_method, new_name - end -end |