testReturnPropertyReturnsPHPCode
testAReturnPropertyCanBeSet
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testAnExceptionIsThrownIfPropertyDoesNotExistAtRuntime
Merge branch 'release/1.4' of https://github.com/elliotchance/concise into 1.4/138-andreturnproperty

Conflicts:
	tests/Concise/Mock/AbstractMockBuilderTestCase.php
	tests/Concise/Mock/MockBuilderForFinalClassTest.php
Merge pull request #138 from elliotchance/1.4/138-andreturnproperty

Mocks have andReturnProperty()
testExposeASingleAttribute
testSetAProptectedProperty
testSuccessReturnsTrue
testFailureThrowsInvalidArgumentException
testIsATypeOfInvalidArgumentException
testExpectedTypesReturnsArray
testExpectedTypesCanBeSet
testActualTypeReturnsEmptyIfUnknown
testActualTypeCanBeSet
testMessage
testDataTypeMismatchExceptionIsThrown
testDataTypeMismatchExceptionHasCorrectActualType
testFilePathMustBeAString