Mocking and faking are ways to isolate code or components to ensure that unit tests run against the testable unit of code only without actually utilizing other components or dependencies of an application. Mocking differs from faking in that a mock can be inspected to assert the results of a test.

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(Why) is it important that a unit test not test dependencies?

I understand the value of automated testing and use it wherever the problem is well-specified enough that I can come up with good test cases. I've noticed, though, that some people here and on ...
47
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10answers
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Is static universally “evil” for unit testing and if so why does resharper recommend it?

I have found that there are only 3 ways to unit test (mock/stub) dependencies that are static in C#.NET: Moles TypeMock JustMock Given that two of these are not free and one has not hit release ...
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4answers
1k views

When should I use mock objects?

I've read a lot of things about TDD but I still have doubts. For example, I have these class diagrams: It's a simple example, just to learn about TDD and mock objects. Which test should I write ...
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6answers
966 views

From a TDD perspective, am I a bad person if I test against a live endpoint instead of a mock?

I follow TDD religiously. My projects typically have 85% or better test coverage, with meaningful test cases. I do a lot of work with HBase, and the main client interface, HTable, is a real pain ...
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4answers
566 views

Do large test methods indicate a code smell?

I have a particular method called TranslateValues() (Cyclomatic-Complexity of 5) which I would like to test. The test requires a substantial number of mock objects which take up most of the method; ...
0
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2answers
120 views

Should we write a unit test for class that call another class that have code written

Suppose that there are two class 'A' and 'B' 'A' has a lot of nested conditions that have all unit test covered. 'B' has a property that will call class 'A' and return value according to the result ...
7
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5answers
860 views

TDD: Mocking out tightly coupled objects

Sometimes objects just need to be tightly coupled. For example, a CsvFile class will probably need to work tightly with the CsvRecord class (or ICsvRecord interface). However from what I learned in ...
6
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1answer
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How much mocking is “just right?”

I titled the question jokingly because I'm sure that "it depends," but I have some specific questions. Working in software that has many deep layers of dependency, my team has become accustomed using ...
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7answers
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Is mocking for unit testing appropriate in this scenario?

I have written around 20 methods in Java and all of them call some web services. None of these web services are available yet. To carry on with the server side coding, I hard-coded the results that ...
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1answer
76 views

Question about mocking externals [duplicate]

at company we're developing quite a big project and we're arguing at the testing strategy. The question is: should all of the tests be executed in isolation of external services like database or APIs ...
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4answers
255 views

What does “mockable” mean?

I came across this term when looking into PHP's "traits" (which are apparently bad, since, among things, they're not mockable), but I can't really find a definition for this "mockability". It might be ...