Mockito check not crashing

Question

I am trying to use a method verifyin Mockito. I have the following test:

@Test
public void testShouldFail()
{
    String string = mock(String.class);
    string.length();
    verify(string, times(100)).length();
}

This test should fail, but it will pass. Does anyone know why? Am I using Mockito incorrectly?

Update

Here is another example that fails:

private interface Bar
{
    public void foo();
}

@Test
public void testShouldFail()
{
    Bar bar = mock(Bar.class);
    bar.foo();
    verify(bar, times(100)).foo();
}

Answer 1

Well, you have to be careful about this: by default, you cannot mock final classes (e.g. String). This is a known limitation in structure.

Your example is not suitable for me with the corresponding error message:

org.mockito.exceptions.base.MockitoException: 
Cannot mock/spy class java.lang.String
Mockito cannot mock/spy following:
  - final classes
  - anonymous classes
  - primitive types
    at Test.testShouldFail(Test.java:6)
         ...

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