Practice TDD in iphone app development

 

 We are used to the test driven develop way.When i move to develop objective-c,i need write testcase too.

 

 Finally I found some useful article  (http://developer.apple.com/mac/articles/tools/unittestingwithxcode3.html).

 

 1:  Set up a Cocoa project  follow the instructions.

 

 2:New a target named TestCase

 

 3: set testcase run path: Test Host  and Bundle Loader

$(BUILT_PRODUCTS_DIR)/OCT.app/Contents/MacOS/OCT

 

4:  select  testcase  and then build  and run

 

 

Aslo  there are some useful Assert wealthy to be remmenberd

OCUnit Macro Purpose

STAssertNil(a1, description, ...)	Generates an error if a1 is not nil.
STAssertNotNil(a1, description, ...)	Generates an error if a1 is nil.
STAssertTrue(expression, description, ...)	Generates an error if expression does not evaluate to true
STAssertFalse(expression, description, ...)	Generates an error if expression does not evaluate to false
STAssertEqualObjects(a1, a2, description, ...)	Generates an error if a1 is not equal to a2. Both must be Objective-C objects.
STAssertEquals(a1, a2, description, ...)	Generates an error if a1 is not equal to a2. Both must be C scalar values.
STAssertEqualsWithAccuracy(left, right, accuracy, description, ...)	Generates an error if a1 and a2 are not within a certain amount of each other. Primarily for use with floats and doubles to take into account small rounding errors due to the way they store values.
STAssertThrows(expression, description, ...)	Generates an error if expression does not throw an exception.
STAssertThrowsSpecific(expression, specificException, description, ...)	Generates an error if expression does not throw an exception of a specified class.
STAssertThrowsSpecificNamed(expr, specificException, aName, description, ...)	Generates an error if expression doesn’t throw an exception with a specific name.
STAssertNoThrow(expression, description, ...)	Generates an error if expression throws an exception.
STAssertNoThrowSpecific(expression, specificException, description, ...)	Generates an error if expression throws an exception of a specified class.
STAssertNoThrowSpecificNamed(expr, specificException, aName, description, ...)	Generates an error if expression throws an exception with a specific name.
STFail(description, ...)	Generates an error.
STAssertTrueNoThrow(expression, description, ...)	Generates an error if expression is false or if it throws an exception.
STAssertFalseNoThrow(expron, description, ...)	Generates an error if expression is true or if it throws an exception