How to use LenientStubber class of org.mockito.kotlin package

Best Mockito-kotlin code snippet using org.mockito.kotlin.LenientStubber

AssignmentTests.kt

Source:AssignmentTests.kt

...16import org.junit.rules.Timeout17import org.junit.rules.Timeout.seconds18import org.junit.runners.model.Statement19import org.mockito.junit.MockitoJUnit20import org.mockito.stubbing.LenientStubber21import org.mockito.stubbing.OngoingStubbing22import kotlin.test.fail23/**24 * Base class used for all assignment test classes25 */26open class AssignmentTests(27    timeoutSeconds: Int = System.getenv().get("ASSIGNMENT_TESTS_TIMEOUT")?.toInt() ?: 10) {28    /** Required for all mockito tests */29    @Rule30    @JvmField31    var mockitoRule = MockitoJUnit.rule()!!32    @Rule33    @JvmField34    var mockkRule = TestRule { base, _ ->35        object : Statement() {36            override fun evaluate() {37                MockKAnnotations.init(38                    this,39                    relaxUnitFun = true,40                    overrideRecordPrivateCalls = true41                )42                try {43                    base?.evaluate()44                } finally {45                    //TODOx: is this necessary?46                    //unmockkAll()47                }48            }49        }50    }51    @Before52    fun setUp() {53        MockKAnnotations.init(this, relaxUnitFun = true)54    }55    @After56    fun tearDown() {57        clearAllMocks()58    }59    /**60     * Sets all tests to timeout after 5 seconds.61     */62    @Rule63    @JvmField64    var timeout: Timeout = seconds(timeoutSeconds.toLong())65    /** Kotlin mocking library is missing this whenever extension. */66    fun <T> LenientStubber.whenever(methodCall: T): OngoingStubbing<T> {67        return `when`(methodCall)!!68    }69    /**70     * Throws [org.junit.AssumptionViolatedException]71     * project is does not match the [assignment].72     */73    fun assignmentTest(assignment: Assignment.Name) {74        assumeTrue("Assignment $assignment test ignored.", isAssignment(assignment))75    }76    /**77     * This call the a side-effect of setting the Assignment.sTypes78     * member to type iff (Assignment.sTypes & type) == true.79     */80    fun runAs(vararg args: Any): Boolean {...

LenientStubber.kt

Source:LenientStubber.kt

...22 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN23 * THE SOFTWARE.24 */25package org.mockito.kotlin26import org.mockito.stubbing.LenientStubber27import org.mockito.stubbing.OngoingStubbing28inline fun <reified T : Any> LenientStubber.whenever(methodCall: T): OngoingStubbing<T> {29    return `when`(methodCall)30}31inline fun <reified T : Any> LenientStubber.whenever(methodCall: () -> T): OngoingStubbing<T> {32    return whenever(methodCall())33}...

LenientStubber

Using AI Code Generation

1val mockedList = mock<List<String>>()2every { mockedList[0] } returns "first"3every { mockedList.get(0) } returns "first"4every { mockedList[0] = any() } just runs5every { mockedList.add("one") } returns true6every { mockedList.addAll(listOf("one", "two")) } returns true7every { mockedList.clear() } just runs8every { mockedList.remove("one") } returns true9every { mockedList.removeAll(listOf("one", "two")) } returns true10every { mockedList.retainAll(listOf("one", "two")) } returns true11every { mockedList.contains("one") } returns true12every { mockedList.containsAll(listOf("one", "two")) } returns true13every { mockedList.isEmpty() } returns true14every { mockedList.size } returns 015every { mockedList.iterator() } returns mock()16every { mockedList.listIterator() } returns mock()17every { mockedList.listIterator(0) } returns mock()18every { mockedList.subList(0, 1) } returns mock()19every { mockedList[0] } returns "first"20every { mockedList[0] = "first" } just runs21every { mockedList[0] } throws RuntimeException()22every { mockedList[0] } answers { "first" }23every { mockedList[0] } answers { "first" } andThen { "second" }24every { mockedList[0] } answers { "first" } andThenThrows RuntimeException()25every { mockedList[0] } answers { "first" } andThen { "second" } andThenThrows RuntimeException()26every { mockedList[0] } answers { "first" } andThen { "second" } andThen { "third" }27every { mockedList[0] } answers { "first" } andThen { "second" } andThen { "third" } andThenThrows RuntimeException()28every { mockedList[0] } answers { "first" } andThen { "second" } andThen { "third" } andThen { "fourth" }29every { mockedList[0] } answers { "first" } andThen { "second" } andThen { "third" } andThen { "fourth" } andThenThrows RuntimeException()30every { mockedList[0]

LenientStubber

Using AI Code Generation

1    fun testUsingLenientStubber() {2        val mockedList = mock<List<String>>()3        mockedList.add("one")4        mockedList.clear()5        verify(mockedList).add("one")6        verify(mockedList).clear()7    }8    fun testUsingSpy() {9        val list = mutableListOf("one", "two")10        val spy = spy(list)11        spy.add("three")12        spy.add("four")13        verify(spy).add("three")14        verify(spy).add("four")15        assertEquals(4, spy.size)16        assertEquals(listOf("one", "two", "three", "four"), spy)17    }18    fun testUsingArgumentCaptor() {19        val list = mutableListOf("one", "two")20        val spy = spy(list)21        spy.add("three")22        spy.add("four")23        val argument = argumentCaptor<String>()24        verify(spy, times(2)).add(argument.capture())25        assertEquals(listOf("three", "four"), argument.allValues)26    }27    fun testUsingArgumentCaptorLambda() {28        val list = mutableListOf("one", "two")29        val spy = spy(list)30        spy.add("three")31        spy.add("four")32        verify(spy, times(2)).add(capture {33            assert(it.length > 2)34        })35    }36}

LenientStubber

Using AI Code Generation

1val lenientStubber = mockk<LenientStubber>()2every { lenientStubber.lenient() } returns lenientStubber3every { lenientStubber.every { mockk<SomeClass>().someMethod() } } returns Unit4val kStubbing = mockk<KStubbing<SomeClass>>()5every { kStubbing.willReturn(Unit) } returns kStubbing6every { kStubbing.willThrow(RuntimeException()) } returns kStubbing7every { kStubbing.willAnswer { Unit } } returns kStubbing8every { kStubbing.will { Unit } } returns kStubbing9val kStubbing = mockk<KStubbing<SomeClass>>()10every { kStubbing.willReturn(Unit) } returns kStubbing11every { kStubbing.willThrow(RuntimeException()) } returns kStubbing12every { kStubbing.willAnswer { Unit } } returns kStubbing13every { kStubbing.will { Unit } } returns kStubbing14val kStubbing = mockk<KStubbing<SomeClass>>()15every { kStubbing.willReturn(Unit) } returns kStubbing16every { kStubbing.willThrow(RuntimeException()) } returns kStubbing17every { kStubbing.willAnswer { Unit } } returns kStubbing18every { kStubbing.will { Unit } } returns kStubbing19val kStubbing = mockk<KStubbing<SomeClass>>()20every { kStubbing.willReturn(Unit) } returns kStubbing21every { kStubbing.willThrow(RuntimeException()) } returns kStubbing22every { kStubbing.willAnswer { Unit } } returns kStubbing23every { kStubbing.will { Unit } } returns kStubbing24val kStubbing = mockk<KStubbing<SomeClass>>()25every { kStubbing.willReturn(Unit) } returns kStubbing26every { kStubbing.willThrow(RuntimeException()) } returns kStubbing27every { kStub

LenientStubber

Using AI Code Generation

1val mockedList = mock<MutableList<String>>()2lenient().`when`(mockedList.size).thenReturn(100)3assertEquals(100, mockedList.size)4verify(mockedList).size5verifyNoMoreInteractions(mockedList)6verifyZeroInteractions(mockedList)7verifyNoInteractions(mockedList)8verify(mockedList, times(1)).size9verify(mockedList, atLeastOnce()).size10verify(mockedList, atLeast(1)).size11verify(mockedList, atMost(1)).size12verify(mockedList, atMostOnce()).size13verify(mockedList, never()).size14verify(mockedList, only()).size15verify(mockedList, timeout(100)).size16verify(mockedList, timeout(100).times(1)).size17verify(mockedList, timeout(100).atLeastOnce()).size18verify(mockedList, timeout(100).atLeast(1)).size19verify(mockedList, timeout(100).atMost(1)).size20verify(mockedList, timeout(100).atMostOnce()).size21verify(mockedList, timeout(100).never()).size22verify(mockedList, timeout(100).only()).size23verify(mockedList, after(100)).size24verify(mockedList, after(100).times(1)).size25verify(mockedList, after(100).atLeastOnce()).size26verify(mockedList, after(100).atLeast(1)).size27verify(mockedList

LenientStubber

Using AI Code Generation

1    val mock = mock<LenientStubber>(defaultAnswer = Answers.RETURNS_DEEP_STUBS)2    whenever(mock.b.c.d) { 1 }3    whenever(mock.b.c.e) { 2 }4    whenever(mock.b.c.f) { 3 }5    assertThat(mock.b.c.d).isEqualTo(1)6    assertThat(mock.b.c.e).isEqualTo(2)7    assertThat(mock.b.c.f).isEqualTo(3)8}9fun testLenientStubber() {10    val mock = mock<LenientStubber>(defaultAnswer = Answers.RETURNS_DEEP_STUBS)11    `when`(mock.b.c.d).thenReturn(1)12    `when`(mock.b.c.e).thenReturn(2)13    `when`(mock.b.c.f).thenReturn(3)14    assertThat(mock.b.c.d).isEqualTo(1)15    assertThat(mock.b.c.e).isEqualTo(2)16    assertThat(mock.b.c.f).isEqualTo(3)17}

LenientStubber

Using AI Code Generation

1val mock = mock<LenientStubber> { on { lenient() } doReturn lenient() }2val mock = mock<LenientStubber> { on { lenient() } doReturn lenient() }3val mock = mock<LenientStubber> { on { lenient() } doReturn lenient() }4val mock = mock<LenientStubber> { on { lenient() } doReturn lenient() }5val mock = mock<LenientStubber> { on { lenient() } doReturn lenient() }6val mock = mock<LenientStubber> { on { lenient() } doReturn lenient() }7val mock = mock<LenientStubber> { on { lenient() } doReturn lenient() }8val mock = mock<LenientStubber> { on { lenient() } doReturn lenient() }9val mock = mock<LenientStubber> { on { lenient() } doReturn lenient() }10val mock = mock<LenientStubber> { on { lenient() } doReturn lenient() }11val mock = mock<LenientStubber> { on { lenient() } doReturn lenient() }

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