--- /dev/null
+require File.dirname(__FILE__) + '/../../spec_helper.rb'
+
+module Spec
+ module Mocks
+ describe "A method stub" do
+ before(:each) do
+ @class = Class.new do
+ def self.existing_class_method
+ :original_value
+ end
+
+ def existing_instance_method
+ :original_value
+ end
+ end
+ @instance = @class.new
+ end
+
+ it "should return expected value when expected message is received" do
+ @instance.stub!(:msg).and_return(:return_value)
+ @instance.msg.should equal(:return_value)
+ @instance.rspec_verify
+ end
+
+ it "should ignore when expected message is received" do
+ @instance.stub!(:msg)
+ @instance.msg
+ lambda do
+ @instance.rspec_verify
+ end.should_not raise_error
+ end
+
+ it "should ignore when message is received with args" do
+ @instance.stub!(:msg)
+ @instance.msg(:an_arg)
+ lambda do
+ @instance.rspec_verify
+ end.should_not raise_error
+ end
+
+ it "should ignore when expected message is not received" do
+ @instance.stub!(:msg)
+ lambda do
+ @instance.rspec_verify
+ end.should_not raise_error
+ end
+
+ it "should clear itself when verified" do
+ @instance.stub!(:this_should_go).and_return(:blah)
+ @instance.this_should_go.should == :blah
+ @instance.rspec_verify
+ lambda do
+ @instance.this_should_go
+ end.should raise_error(NameError)
+ end
+
+ it "should return values in order to consecutive calls" do
+ return_values = ["1",2,Object.new]
+ @instance.stub!(:msg).and_return(return_values[0],return_values[1],return_values[2])
+ @instance.msg.should == return_values[0]
+ @instance.msg.should == return_values[1]
+ @instance.msg.should == return_values[2]
+ end
+
+ it "should keep returning last value in consecutive calls" do
+ return_values = ["1",2,Object.new]
+ @instance.stub!(:msg).and_return(return_values[0],return_values[1],return_values[2])
+ @instance.msg.should == return_values[0]
+ @instance.msg.should == return_values[1]
+ @instance.msg.should == return_values[2]
+ @instance.msg.should == return_values[2]
+ @instance.msg.should == return_values[2]
+ end
+
+ it "should revert to original instance method if there is one" do
+ @instance.existing_instance_method.should equal(:original_value)
+ @instance.stub!(:existing_instance_method).and_return(:mock_value)
+ @instance.existing_instance_method.should equal(:mock_value)
+ @instance.rspec_verify
+ @instance.existing_instance_method.should equal(:original_value)
+ end
+
+ it "should revert to original class method if there is one" do
+ @class.existing_class_method.should equal(:original_value)
+ @class.stub!(:existing_class_method).and_return(:mock_value)
+ @class.existing_class_method.should equal(:mock_value)
+ @class.rspec_verify
+ @class.existing_class_method.should equal(:original_value)
+ end
+
+ it "should yield a specified object" do
+ @instance.stub!(:method_that_yields).and_yield(:yielded_obj)
+ current_value = :value_before
+ @instance.method_that_yields {|val| current_value = val}
+ current_value.should == :yielded_obj
+ @instance.rspec_verify
+ end
+
+ it "should yield multiple times with multiple calls to and_yield" do
+ @instance.stub!(:method_that_yields_multiple_times).and_yield(:yielded_value).
+ and_yield(:another_value)
+ current_value = []
+ @instance.method_that_yields_multiple_times {|val| current_value << val}
+ current_value.should == [:yielded_value, :another_value]
+ @instance.rspec_verify
+ end
+
+ it "should yield a specified object and return another specified object" do
+ yielded_obj = mock("my mock")
+ yielded_obj.should_receive(:foo).with(:bar)
+ @instance.stub!(:method_that_yields_and_returns).and_yield(yielded_obj).and_return(:baz)
+ @instance.method_that_yields_and_returns { |o| o.foo :bar }.should == :baz
+ end
+
+ it "should throw when told to" do
+ @mock.stub!(:something).and_throw(:up)
+ lambda do
+ @mock.something
+ end.should throw_symbol(:up)
+ end
+
+ it "should override a pre-existing stub" do
+ @stub.stub!(:existing_instance_method).and_return(:updated_stub_value)
+ @stub.existing_instance_method.should == :updated_stub_value
+ end
+
+ it "should limit " do
+ @stub.stub!(:foo).with("bar")
+ @stub.should_receive(:foo).with("baz")
+ @stub.foo("bar")
+ @stub.foo("baz")
+ end
+ end
+
+ describe "A method stub with args" do
+ before(:each) do
+ @stub = Object.new
+ @stub.stub!(:foo).with("bar")
+ end
+
+ it "should not complain if not called" do
+ end
+
+ it "should not complain if called with arg" do
+ @stub.foo("bar")
+ end
+
+ it "should complain if called with no arg" do
+ lambda do
+ @stub.foo
+ end.should raise_error
+ end
+
+ it "should complain if called with other arg" do
+ lambda do
+ @stub.foo("other")
+ end.should raise_error
+ end
+
+ it "should not complain if also mocked w/ different args" do
+ @stub.should_receive(:foo).with("baz")
+ @stub.foo("bar")
+ @stub.foo("baz")
+ end
+
+ it "should complain if also mocked w/ different args AND called w/ a 3rd set of args" do
+ @stub.should_receive(:foo).with("baz")
+ @stub.foo("bar")
+ @stub.foo("baz")
+ lambda do
+ @stub.foo("other")
+ end.should raise_error
+ end
+
+ it "should support options" do
+ @stub.stub!(:foo, :expected_from => "bar")
+ end
+ end
+
+ end
+end
projects / rails.git / blobdiff