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How to use parameterless method of org.mockito.kotlin.UseConstructor class

Best Mockito-kotlin code snippet using org.mockito.kotlin.UseConstructor.parameterless

LiquidLegionsV2MillTest.kt

Source:LiquidLegionsV2MillTest.kt

...372  private val mockComputationLogEntries: SystemComputationLogEntriesCoroutineImplBase =373    mockService()374  private val mockComputationStats: ComputationStatsCoroutineImplBase = mockService()375  private val mockCryptoWorker: LiquidLegionsV2Encryption =376    mock(useConstructor = UseConstructor.parameterless()) {377      on { combineElGamalPublicKeys(any()) }.thenAnswer {378        val cryptoRequest: CombineElGamalPublicKeysRequest = it.getArgument(0)379        CombineElGamalPublicKeysResponse.newBuilder()380          .apply {381            elGamalKeysBuilder.apply {382              generator =383                ByteString.copyFromUtf8(384                  cryptoRequest.elGamalKeysList385                    .sortedBy { key -> key.generator.toStringUtf8() }386                    .joinToString(separator = "_") { key -> key.generator.toStringUtf8() }387                )388              element =389                ByteString.copyFromUtf8(390                  cryptoRequest.elGamalKeysList...

MockingTest.kt

Source:MockingTest.kt

1package test2import com.nhaarman.expect.expect3import com.nhaarman.expect.expectErrorWithMessage4import com.nhaarman.expect.fail5import org.mockito.kotlin.UseConstructor.Companion.parameterless6import org.mockito.kotlin.UseConstructor.Companion.withArguments7import org.mockito.kotlin.doReturn8import org.mockito.kotlin.mock9import org.mockito.kotlin.verify10import org.mockito.kotlin.whenever11import org.junit.Test12import org.mockito.Mockito13import org.mockito.exceptions.verification.WantedButNotInvoked14import org.mockito.invocation.DescribedInvocation15import org.mockito.kotlin.argumentCaptor16import org.mockito.listeners.InvocationListener17import org.mockito.mock.SerializableMode.BASIC18import java.io.PrintStream19import java.io.Serializable20import java.util.*21class MockingTest : TestBase() {22    private lateinit var propertyInterfaceVariable: MyInterface23    private lateinit var propertyClassVariable: MyClass24    @Test25    fun localInterfaceValue() {26        /* When */27        val instance: MyInterface = mock()28        /* Then */29        expect(instance).toNotBeNull()30    }31    @Test32    fun propertyInterfaceVariable() {33        /* When */34        propertyInterfaceVariable = mock()35        /* Then */36        expect(propertyInterfaceVariable).toNotBeNull()37    }38    @Test39    fun localClassValue() {40        /* When */41        val instance: MyClass = mock()42        /* Then */43        expect(instance).toNotBeNull()44    }45    @Test46    fun propertyClassVariable() {47        /* When */48        propertyClassVariable = mock()49        /* Then */50        expect(propertyClassVariable).toNotBeNull()51    }52    @Test53    fun untypedVariable() {54        /* When */55        val instance = mock<MyClass>()56        expect(instance).toNotBeNull()57    }58    @Test59    fun deepStubs() {60        val cal: Calendar = mock(defaultAnswer = Mockito.RETURNS_DEEP_STUBS)61        whenever(cal.time.time).thenReturn(123L)62        expect(cal.time.time).toBe(123L)63    }64    @Test65    fun testMockStubbing_lambda() {66        /* Given */67        val mock = mock<Open>() {68            on { stringResult() } doReturn "A"69        }70        /* When */71        val result = mock.stringResult()72        /* Then */73        expect(result).toBe("A")74    }75    @Test76    fun testMockStubbing_normalOverridesLambda() {77        /* Given */78        val mock = mock<Open>() {79            on { stringResult() }.doReturn("A")80        }81        whenever(mock.stringResult()).thenReturn("B")82        /* When */83        val result = mock.stringResult()84        /* Then */85        expect(result).toBe("B")86    }87    @Test88    fun mock_withCustomDefaultAnswer_parameterName() {89        /* Given */90        val mock = mock<Methods>(defaultAnswer = Mockito.RETURNS_SELF)91        /* When */92        val result = mock.builderMethod()93        /* Then */94        expect(result).toBe(mock)95    }96    @Test97    fun mock_withSettingsAPI_extraInterfaces() {98        /* Given */99        val mock = mock<Methods>(100              extraInterfaces = arrayOf(ExtraInterface::class)101        )102        /* Then */103        expect(mock).toBeInstanceOf<ExtraInterface>()104    }105    @Test106    fun mock_withSettingsAPI_name() {107        /* Given */108        val mock = mock<Methods>(name = "myName")109        /* When */110        expectErrorWithMessage("myName.stringResult()") on {111            verify(mock).stringResult()112        }113    }114    @Test115    fun mock_withSettingsAPI_defaultAnswer() {116        /* Given */117        val mock = mock<Methods>(defaultAnswer = Mockito.RETURNS_MOCKS)118        /* When */119        val result = mock.nonDefaultReturnType()120        /* Then */121        expect(result).toNotBeNull()122    }123    @Test124    fun mock_withSettingsAPI_serializable() {125        /* Given */126        val mock = mock<Methods>(serializable = true)127        /* Then */128        expect(mock).toBeInstanceOf<Serializable>()129    }130    @Test131    fun mock_withSettingsAPI_serializableMode() {132        /* Given */133        val mock = mock<Methods>(serializableMode = BASIC)134        /* Then */135        expect(mock).toBeInstanceOf<Serializable>()136    }137    @Test138    fun mock_withSettingsAPI_verboseLogging() {139        /* Given */140        val out = mock<PrintStream>()141        System.setOut(out)142        val mock = mock<Methods>(verboseLogging = true)143        try {144            /* When */145            verify(mock).stringResult()146            fail("Expected an exception")147        } catch (e: WantedButNotInvoked) {148            /* Then */149            argumentCaptor<DescribedInvocation>().apply {150                verify(out).println(capture())151                expect(lastValue.toString()).toBe("methods.stringResult();")152            }153        }154    }155    @Test156    fun mock_withSettingsAPI_invocationListeners() {157        /* Given */158        var bool = false159        val mock = mock<Methods>(invocationListeners = arrayOf(InvocationListener { bool = true }))160        /* When */161        mock.stringResult()162        /* Then */163        expect(bool).toHold()164    }165    @Test166    fun mock_withSettingsAPI_stubOnly() {167        /* Given */168        val mock = mock<Methods>(stubOnly = true)169        /* Expect */170        expectErrorWithMessage("is a stubOnly() mock") on {171            /* When */172            verify(mock).stringResult()173        }174    }175    @Test176    fun mock_withSettingsAPI_useConstructor() {177        /* Given */178        expectErrorWithMessage("Unable to create mock instance of type ") on {179            mock<ThrowingConstructor>(useConstructor = parameterless()) {}180        }181    }182    @Test183    fun mock_withSettingsAPI_useConstructorWithArguments_failing() {184        /* Given */185        expectErrorWithMessage("Unable to create mock instance of type ") on {186            mock<ThrowingConstructorWithArgument>(useConstructor = withArguments("Test")) {}187        }188    }189    @Test190    fun mock_withSettingsAPI_useConstructorWithArguments() {191        /* When */192        val result = mock<NonThrowingConstructorWithArgument>(useConstructor = withArguments("Test")) {}193        /* Then */194        expect(result).toNotBeNull()195    }196    @Test197    fun mockStubbing_withSettingsAPI_extraInterfaces() {198        /* Given */199        val mock = mock<Methods>(extraInterfaces = arrayOf(ExtraInterface::class)) {}200        /* Then */201        expect(mock).toBeInstanceOf<ExtraInterface>()202    }203    @Test204    fun mockStubbing_withSettingsAPI_name() {205        /* Given */206        val mock = mock<Methods>(name = "myName") {}207        /* When */208        expectErrorWithMessage("myName.stringResult()") on {209            verify(mock).stringResult()210        }211    }212    @Test213    fun mockStubbing_withSettingsAPIAndStubbing_name() {214        /* Given */215        val mock = mock<Methods>(name = "myName") {216            on { nullableStringResult() } doReturn "foo"217        }218        /* When */219        val result = mock.nullableStringResult()220        /* Then */221        expect(result).toBe("foo")222    }223    @Test224    fun mockStubbing_withSettingsAPI_defaultAnswer() {225        /* Given */226        val mock = mock<Methods>(defaultAnswer = Mockito.RETURNS_MOCKS) {}227        /* When */228        val result = mock.nonDefaultReturnType()229        /* Then */230        expect(result).toNotBeNull()231    }232    @Test233    fun mockStubbing_withSettingsAPI_serializable() {234        /* Given */235        val mock = mock<Methods>(serializable = true) {}236        /* Then */237        expect(mock).toBeInstanceOf<Serializable>()238    }239    @Test240    fun mockStubbing_withSettingsAPI_serializableMode() {241        /* Given */242        val mock = mock<Methods>(serializableMode = BASIC) {}243        /* Then */244        expect(mock).toBeInstanceOf<Serializable>()245    }246    @Test247    fun mockStubbing_withSettingsAPI_verboseLogging() {248        /* Given */249        val out = mock<PrintStream>()250        System.setOut(out)251        val mock = mock<Methods>(verboseLogging = true) {}252        try {253            /* When */254            verify(mock).stringResult()255            fail("Expected an exception")256        } catch (e: WantedButNotInvoked) {257            /* Then */258            argumentCaptor<DescribedInvocation>().apply {259                verify(out).println(capture())260                expect(lastValue.toString()).toBe("methods.stringResult();")261            }262        }263    }264    @Test265    fun mockStubbing_withSettingsAPI_invocationListeners() {266        /* Given */267        var bool = false268        val mock = mock<Methods>(invocationListeners = arrayOf(InvocationListener { bool = true })) {}269        /* When */270        mock.stringResult()271        /* Then */272        expect(bool).toHold()273    }274    @Test275    fun mockStubbing_withSettingsAPI_stubOnly() {276        /* Given */277        val mock = mock<Methods>(stubOnly = true) {}278        /* Expect */279        expectErrorWithMessage("is a stubOnly() mock") on {280            /* When */281            verify(mock).stringResult()282        }283    }284    @Test285    fun mockStubbing_withSettingsAPI_useConstructor() {286        /* Given */287        expectErrorWithMessage("Unable to create mock instance of type ") on {288            mock<ThrowingConstructor>(useConstructor = parameterless()) {}289        }290    }291    private interface MyInterface292    private open class MyClass293}...

DevelopersMessageListenerPactTest.kt

Source:DevelopersMessageListenerPactTest.kt

...18import de.dkutzer.buggy.planning.entity.*19import mu.KotlinLogging20import org.junit.jupiter.api.Test21import org.junit.jupiter.api.extension.ExtendWith22import org.mockito.kotlin.UseConstructor.Companion.parameterless23import org.mockito.kotlin.UseConstructor.Companion.withArguments24import org.junit.jupiter.api.BeforeEach25import org.junit.jupiter.api.extension.Extensions26import org.mockito.Mockito.mock27import org.mockito.Mockito.verify28import org.mockito.kotlin.*29import org.springframework.http.MediaType30import java.util.*31private val logger = KotlinLogging.logger {}32@PactTestFor(providerName = "dkutzer-msdemo-buggy-developers-messaging")33@Extensions(34        ExtendWith(PactConsumerTestExt::class)35)36@PactDirectory("../pacts")...

Mocking.kt

Source:Mocking.kt

...21/** Creates a mock for a gRPC coroutine service [T], allowing for immediate stubbing. */22inline fun <reified T : AbstractCoroutineServerImpl> mockService(23  stubbing: KStubbing<T>.(T) -> Unit24): T =25  mock(useConstructor = UseConstructor.parameterless()) { mock ->26    on { context }.thenCallRealMethod()27    stubbing(mock)28  }29/** Creates a mock for a gRPC coroutine service [T]. */30inline fun <reified T : AbstractCoroutineServerImpl> mockService(): T =31  mock(useConstructor = UseConstructor.parameterless()) { on { context }.thenCallRealMethod() }...

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