Answer by kk1 for What's the difference between a mock & stub?
There a lots of greats answers, and I liked this one, so I turned it into a table.DummyStubMockFakeAPIOOOOStatesXOOOValuesXXOOBehaviorXXXO
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Answer by Murat Yıldız for What's the difference between a mock & stub?
StubA stub is an object that holds predefined data and uses it to answer calls during tests. It is used when you can’t or don’t want to involve objects that would answer with real data or have...
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Answer by mostafa kazemi for What's the difference between a mock & stub?
Mocks: help to emulate and examine outcoming interactions. These interactionsare calls the SUT makes to its dependencies to change their state.Stubs: help to emulate incoming interactions. These...
View ArticleAnswer by DeeFisher for What's the difference between a mock & stub?
StubA stub is an object used to fake a method that has pre-programmed behavior. You may want to use this instead of an existing method in order to avoid unwanted side-effects (e.g. a stub could make a...
View ArticleAnswer by Lho Ben for What's the difference between a mock & stub?
A stub is a test double that returns values to the SUT. A mock is a test double that a test uses to verify that the SUT correctly invokes a dependency. Also, a mock is often a stub
View ArticleAnswer by Ahmed Nabil for What's the difference between a mock & stub?
Plus useful answers, One of the most powerful point of using Mocks than SubsIf the collaborator [which the main code depend on it] is not under our control (e.g. from a third-party library),In this...
View ArticleAnswer by Afonso Matos for What's the difference between a mock & stub?
I was reading The Art of Unit Testing, and stumbled upon the following definition:A fake is a generic term that can be used to describe either a stub or a mock object (handwritten or otherwise),...
View ArticleAnswer by davidxxx for What's the difference between a mock & stub?
A mock is both a technical and a functional object. The mock is technical. It is indeed created by a mocking library (EasyMock, JMockit and more recently Mockito are known for these) thanks to byte...
View ArticleAnswer by Developer for What's the difference between a mock & stub?
Both Stubs and Mocks override external dependencies but the difference isStubs -> To Test DataMocks -> To Test BehaviorA quote from Fowler's Mocks Aren't Stubs article:Stubs provide canned...
View ArticleAnswer by Mikayil Abdullayev for What's the difference between a mock & stub?
Say you have a class named EmployeeService that you want to test and that has one dependency on an interface named EmployeeDao:public class EmployeeService{ private EmployeeDao dao; public...
View ArticleAnswer by Moshisho for What's the difference between a mock & stub?
Using a mental model really helped me understand this, rather than all of the explanations and articles, that didn't quite "sink in".Imagine your kid has a glass plate on the table and he starts...
View ArticleAnswer by William Entriken for What's the difference between a mock & stub?
A test subject performs actions in response to certain prompts (function calls) or other stimuli. Here are concrete examples of test situations.Scenario -- EMT student examA student has studied to be...
View ArticleAnswer by Alireza Rahmani Khalili for What's the difference between a mock &...
let see Test Doubles:Fake: Fakes are objects that have working implementations, but not the same as production one. Such as: in-memory implementation of Data Access Object or Repository. Stub: Stub is...
View ArticleAnswer by Relu Mesaros for What's the difference between a mock & stub?
Stubs vs. MocksStubs provide specific answers to methods callsex: myStubbedService.getValues() just return a String needed by the code under testused by code under test to isolate itcannot fail testex:...
View ArticleAnswer by Kasper for What's the difference between a mock & stub?
a lot of valid answers up there but I think worth to mention this form uncle bob:https://8thlight.com/blog/uncle-bob/2014/05/14/TheLittleMocker.htmlthe best explanation ever with examples!
View ArticleAnswer by Premraj for What's the difference between a mock & stub?
The generic term he uses is a Test Double (think stunt double). Test Double is a generic term for any case where you replace a production object for testing purposes. There are various kinds of double...
View ArticleAnswer by Didier A. for What's the difference between a mock & stub?
Mock - A mock intercepts a call to a method or function (or a group of methods and functions like in the case of a mocked class). It is not an alternative to that method or function. In that...
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Answer by Aviram Fireberger for What's the difference between a mock & stub?
This slide explain the main differences very good.*From CSE 403 Lecture 16 , University of Washington (slide created by "Marty Stepp")
View ArticleAnswer by A.I for What's the difference between a mock & stub?
I came across this interesting article by UncleBob The Little Mocker. It explains all the terminology in a very easy to understand manner, so its useful for beginners. Martin Fowlers article is a hard...
View ArticleAnswer by simon.denel for What's the difference between a mock & stub?
A stub is a fake object built for test purposes. A mock is a stub that records whether expected calls effectively occurred.
View ArticleAnswer by nitishagar for What's the difference between a mock & stub?
I like the explanation put out by Roy Osherove in his talk Understanding Mock Objects:Every class or object created is a fake. It is a mock if you assert against it. Otherwise it is a stub.
View ArticleAnswer by Dimos for What's the difference between a mock & stub?
Right from the paper Mock Roles, not Objects, by the developers of jMock :Stubs are dummy implementations of production code that return canned results. Mock Objects act as stubs, but also include...
View ArticleAnswer by Ghini Antonio for What's the difference between a mock & stub?
I think the simplest and clearer answer about this question is given from Roy Osherove in his book The art of Unit Testing (page 85)The easiest way to tell we’re dealing with a stub is to notice that...
View ArticleAnswer by R01010010 for What's the difference between a mock & stub?
To be very clear and practical:Stub: A class or object that implements the methods of the class/object to be faked and returns always what you want.Example in JavaScript:var Stub = { method_a:...
View ArticleAnswer by Paul Sweatte for What's the difference between a mock & stub?
A stub is an empty function which is used to avoid unhandled exceptions during tests:function foo(){}A mock is an artificial function which is used to avoid OS, environment or hardware dependencies...
View ArticleAnswer by M_ Fa for What's the difference between a mock & stub?
A Stub is an object that implements an interface of a component, but instead of returning what the component would return when called, the stub can be configured to return a value that suits the test....
View ArticleAnswer by radtek for What's the difference between a mock & stub?
I have used python examples in my answer to illustrate the differences.Stub - Stubbing is a software development technique used to implement methods of classes early in the development life-cycle. They...
View ArticleAnswer by Lev for What's the difference between a mock & stub?
Here's a description of each one followed by with real world sample.Dummy - just bogus values to satisfy the API.Example: If you're testing a method of a class which requires many mandatory parameters...
View ArticleAnswer by O'Rooney for What's the difference between a mock & stub?
Reading all the explanations above, let me try to condense:Stub: a dummy piece of code that lets the test run, but you don't care what happens to it. Substitutes for real working code.Mock: a dummy...
View ArticleAnswer by Mustafa Ekici for What's the difference between a mock & stub?
A fake is a generic term that can be used to describe either a stubor a mock object (handwritten or otherwise), because they both look like thereal object. Whether a fake is a stub or a mock depends on...
View ArticleAnswer by Adarsh Shah for What's the difference between a mock & stub?
See below example of mocks vs stubs using C# and Moq framework. Moq doesn't have a special keyword for Stub but you can use Mock object to create stubs too. namespace UnitTestProject2{ using...
View ArticleAnswer by Harry for What's the difference between a mock & stub?
Stub helps us to run test. How? It gives values which helps to run test. These values are itself not real and we created these values just to run the test. For example we create a HashMap to give us...
View ArticleAnswer by happygilmore for What's the difference between a mock & stub?
If you compare it to debugging:Stub is like making sure a method returns the correct valueMock is like actually stepping into the method and making sure everything inside is correct before returning...
View ArticleAnswer by Ryszard Dżegan for What's the difference between a mock & stub?
ForewordThere are several definitions of objects, that are not real. The general term is test double. This term encompasses: dummy, fake, stub, mock.ReferenceAccording to Martin Fowler's article:Dummy...
View ArticleAnswer by Elisabeth for What's the difference between a mock & stub?
Stubs are used on methods with an expected return value which you setup in your test.Mocks are used on void methods which are verified in the Assert that they are called.
View ArticleAnswer by Joe Yang for What's the difference between a mock & stub?
I think the most important difference between them is their intentions.Let me try to explain it in WHY stub vs. WHY mockSuppose I'm writing test code for my mac twitter client's public timeline...
View ArticleAnswer by Dillon Kearns for What's the difference between a mock & stub?
In the codeschool.com course, Rails Testing for Zombies, they give this definition of the terms:StubFor replacing a method with code that returns a specified result.MockA stub with an assertion that...
View ArticleAnswer by b4da for What's the difference between a mock & stub?
Stubs don't fail your tests, mock can.
View ArticleAnswer by Sean Copenhaver for What's the difference between a mock & stub?
StubI believe the biggest distinction is that a stub you have already written with predetermined behavior. So you would have a class that implements the dependency (abstract class or interface most...
View ArticleAnswer by Andy Lin for What's the difference between a mock & stub?
following is my understanding...if you create test objects locally and feed your local service with that, you are using mock object. this will give a test for the method you implemented in your local...
View ArticleAnswer by Arnis Lapsa for What's the difference between a mock & stub?
A stub is a simple fake object. It just makes sure test runs smoothly.A mock is a smarter stub. You verify your test passes through it.
View ArticleAnswer by NebulaFox for What's the difference between a mock & stub?
A Mock is just testing behaviour, making sure certain methods are called.A Stub is a testable version (per se) of a particular object.What do you mean an Apple way?
View ArticleWhat's the difference between a mock & stub?
I've read various articles about mocking vs stubbing in testing, including Martin Fowler's Mocks Aren't Stubs, but still don't understand the difference.
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