Updated test doubles (markdown)

John Norman commited 2016-10-02 19:11:07 -0500 commit 683b1662772b2b1c708b51e0d83b3158c510ae4c

				test-doubles.md
			
          @@ -125,6 +125,9 @@ of the delegation to the specific converter even if it's wrong; our stubbed test

           what the actual class does at all: our test is completely independent. Additionally, we have moved the

           key verification value closer to the assertion, which is easier to read.

          +Stubbing in MiniTest requires the the stubbed method actually exist in the instance being stubbed. Other

          +testing frameworks are more lenient in this respect, which can result in more concise tests.

          +

           ### Testing messages sent to others

           When we send a message to another object that results in a side effect, we want to verify the side effect.

...	...	@@ -125,6 +125,9 @@ of the delegation to the specific converter even if it's wrong; our stubbed test
125	125	what the actual class does at all: our test is completely independent. Additionally, we have moved the
126	126	key verification value closer to the assertion, which is easier to read.
127	127
	128	+Stubbing in MiniTest requires the the stubbed method actually exist in the instance being stubbed. Other
	129	+testing frameworks are more lenient in this respect, which can result in more concise tests.
	130	+
128	131	### Testing messages sent to others
129	132
130	133	When we send a message to another object that results in a side effect, we want to verify the side effect.