(I assume you can use Mockito though) Nothing dedicated comes to my mind but I tend to use the following strategy when it comes to situations like that: 1) In the class under test, replace the static direct call with a call to a package level method that wraps the static call itself: public class … Read more
There’s a very nice mocking library for Kotlin – Mockk, which allows you to mock objects, the exact same way you’re desiring. As of its documentation: Objects can be transformed to mocks following way: object MockObj { fun add(a: Int, b: Int) = a + b } mockkObject(MockObj) // aplies mocking to an Object assertEquals(3, … Read more
This is a bug that occurs when you use JUnit 4.12 and PowerMock < 1.6.1. The problem is solved in PowerMock 1.6.1. Please update your dependencies accordingly testCompile ‘junit:junit:4.12’, ‘org.powermock:powermock-core:1.6.1’, ‘org.powermock:powermock-module-junit4:1.6.1’, ‘org.powermock:powermock-api-mockito:1.6.1’ If you cannot upgrade PowerMock then you can use JUnit 4.11. testCompile ‘junit:junit:4.11’, ‘org.powermock:powermock-core:1.5.6’, ‘org.powermock:powermock-module-junit4:1.5.6’, ‘org.powermock:powermock-api-mockito:1.5.6’ Could you please add further lines of … Read more
Whitebox.setInternalState(Foo.class, b); Works as long as you set a non-null value, and if theres only one field with the class of B. If you can’t rely on that luxury, you have to provide the field-name and cast the null to the type you want to set. In that case you would need to write something … Read more
I don’t know of other benefits offhand, but I want to address 2 of your sub-questions (and this is way too long for a comment): allow mocking without dependency injection – this one isn’t clear to me. Can you elaborate? I think this came from the Motivation wiki page where they describe a way of … Read more
EDIT 2020-09-21: Since 3.4.0, Mockito supports mocking static methods, API is still incubating and is likely to change, in particular around stubbing and verification. It requires the mockito-inline artifact. And you don’t need to prepare the test or use any specific runner. All you need to do is : @Test public void name() { try … Read more
I don’t see a problem here. With the following code using the Mockito API, I managed to do just that : public class CodeWithPrivateMethod { public void meaningfulPublicApi() { if (doTheGamble(“Whatever”, 1 << 3)) { throw new RuntimeException(“boom”); } } private boolean doTheGamble(String whatever, int binary) { Random random = new Random(System.nanoTime()); boolean gamble = … Read more
Right now, Android Studio integrates jacoco automatically to do code coverage. You just need to add a few lines of code: apply plugin: ‘jacoco-android’ android { buildTypes { debug { testCoverageEnabled = true } } } More information here: http://blog.wittchen.biz.pl/test-coverage-report-for-android-application/
You can stub a static void method like this: PowerMockito.doNothing().when(StaticResource.class, “getResource”, anyString()); Although I’m not sure why you would bother, because when you call mockStatic(StaticResource.class) all static methods in StaticResource are by default stubbed More useful, you can capture the value passed to StaticResource.getResource() like this: ArgumentCaptor<String> captor = ArgumentCaptor.forClass(String.class); PowerMockito.doNothing().when( StaticResource.class, “getResource”, captor.capture()); Then … Read more
The code you posted works for me with the latest version of Mockito and Powermockito. Maybe you haven’t prepared A? Try this: A.java public class A { private final String test; public A(String test) { this.test = test; } public String check() { return “checked ” + this.test; } } MockA.java import static org.hamcrest.MatcherAssert.assertThat; import … Read more