Dummy Dummy fetchDiscounts is a side effect, a dummy can replace it - PowerPoint PPT Presentation

Dummy

Dummy fetchDiscounts is a side effect, a dummy can replace it for testing

Dummy - Unit Test

Dummy - Unit Test The object has nothing to do with the assertion of this test

Stub

Stub The service is not a core piece of our function, just a side effect

Stub - Unit Test

Stub - unit test The service is stubbed out to focus on the functionality of the method

Fake

Fake Similar to a stub, but replaces functionality

Fake - Jest Setup File

Fake - Jest Setup File

Fake - Unit Test Call the function as normal, and utilize the local storage fake implementation

Mock Call the function as normal and utilize a mock to verify myService.placeOrder was called

Mock Call the function as normal and utilize a mock to verify myService.placeOrder was called

Mock - Unit Test

Mock - Unit Test Make sure that place order has been called, even verify the parameters

Unit Testing Decision Tree

Unit Testing Decision Tree

Unit Testing Decision Tree

Unit Testing Decision Tree

Unit Testing Decision Tree

Unit Testing Decision Tree

Unit Testing Decision Tree