KaneAI - World’s First E2E Software Testing Agent.Signup for Private Beta Join TestMu Conference

How to use verifyThrowsAssertionErrorInstance method of com.sksamuel.kotest.throwablehandling.CovariantThrowableHandlingTest class

Best Kotest code snippet using com.sksamuel.kotest.throwablehandling.CovariantThrowableHandlingTest.verifyThrowsAssertionErrorInstance

CovariantThrowableHandlingTest.kt

Source:CovariantThrowableHandlingTest.kt

...47         "Should throw the thrown exception" - {48            "When an exception is thrown, but it's an Assertion Error (special case) when it's not expected" {49               val thrownInstance = AssertionError()50               onShouldThrowMatcher<FooRuntimeException> { shouldThrowMatcher ->51                  verifyThrowsAssertionErrorInstance(thrownInstance) {52                     shouldThrowMatcher { throw thrownInstance }53                  }54               }55            }56         }57         "Should return the thrown exception" - {58            "When an exception is thrown and it's exactly the right class" {59               val thrownException = FooRuntimeException()60               onShouldThrowMatcher<FooRuntimeException> { shouldThrowMatcher ->61                  verifyReturnsExactly(thrownException) {62                     shouldThrowMatcher { throw thrownException }63                  }64               }65            }66            "When an exception is thrown and it's a subclass of the right class" {67               val thrownException = SubException()68               onShouldThrowMatcher<ParentException> { shouldThrowMatcher ->69                  verifyReturnsExactly(thrownException) {70                     shouldThrowMatcher { throw thrownException }71                  }72               }73            }74            "When an AssertionError is thrown and it's exactly the right class" {75               val thrownException = AssertionError()76               onShouldThrowMatcher<AssertionError> { shouldThrowMatcher ->77                  verifyReturnsExactly(thrownException) {78                     shouldThrowMatcher { throw thrownException }79                  }80               }81            }82            "When a subclass of AssertionError is thrown, and we're expecting an AssertionError" {83               val thrownException = AssertionErrorSubclass()84               onShouldThrowMatcher<AssertionError> { shouldThrowMatcher ->85                  verifyReturnsExactly(thrownException) {86                     shouldThrowMatcher { throw thrownException }87                  }88               }89            }90         }91      }92      "Should not throw" - {93         "Should throw an assertion error wrapping the thrown exception" - {94            "When it's an instance of the right class" {95               val thrownException = FooRuntimeException()96               onShouldNotThrowMatcher<FooRuntimeException> { shouldNotThrowMatcher ->97                  verifyThrowsAssertionWrapping(thrownException) {98                     shouldNotThrowMatcher { throw thrownException }99                  }100               }101            }102            "When it's a subclass of the right class" {103               val thrownException = SubException()104               onShouldNotThrowMatcher<ParentException> { shouldNotThrowMatcher ->105                  verifyThrowsAssertionWrapping(thrownException) {106                     shouldNotThrowMatcher { throw thrownException }107                  }108               }109            }110         }111         "Should throw the thrown exception" - {112            "When it's not an instance nor subclass of the right class" {113               val thrownException = FooRuntimeException()114               onShouldNotThrowMatcher<ParentException> { shouldNotThrowMatcher ->115                  verifyThrowsExactly(thrownException) {116                     shouldNotThrowMatcher { throw thrownException }117                  }118               }119            }120            "When it's an instance of the parent class of the right class" {121               val thrownException = ParentException()122               onShouldNotThrowMatcher<SubException> { shouldNotThrowMatcher ->123                  verifyThrowsExactly(thrownException) {124                     shouldNotThrowMatcher { throw thrownException }125                  }126               }127            }128         }129         "Should not throw an exception" - {130            "When no exception is thrown" {131               onShouldNotThrowMatcher<ParentException> { shouldNotThrowMatcher ->132                  val thrown = catchThrowable {133                     shouldNotThrowMatcher { /* Nothing thrown */ }134                  }135                  thrown shouldBe null136               }137            }138         }139      }140      "should throw with message" - {141         "When the correct exception is thrown, but the message is wrong" {142            onShouldThrowWithMessageMatcher<Exception>("foo") { shouldThrowMatcher ->143               verifyThrowsWrongExceptionMessage("foo", "bar") {144                  shouldThrowMatcher { throw Exception("bar") }145               }146            }147         }148         "Exception class type should have priority in assertion" {149            val instanceToThrow = Exception("foo")150            runCatching {151               shouldThrowWithMessage<RuntimeException>("bar") {152                  throw instanceToThrow153               }154            }155               .exceptionOrNull() shouldBe AssertionError("Expected exception java.lang.RuntimeException but a Exception was thrown instead.")156         }157      }158   }159   private fun <T> onShouldThrowWithMessageMatcher(message: String, func: (ShouldThrowMatcher<T>) -> Unit) {160      func { shouldThrowUnitWithMessage(message, it) }161      func { shouldThrowWithMessage(message, it) }162   }163   private inline fun <reified T : Throwable> onShouldThrowMatcher(func: (ShouldThrowMatcher<T>) -> Unit) {164      func(::shouldThrowUnit)165      func { shouldThrow(it) }166   }167   private fun verifyNoExceptionThrownError(expectedClass: KClass<*>, block: () -> Unit) {168      val throwable = catchThrowable(block)169      throwable.shouldBeInstanceOf<AssertionError>()170      throwable.message shouldBe "Expected exception ${expectedClass.qualifiedName} but no exception was thrown."171   }172   private fun verifyThrowsAssertionErrorInstance(assertionErrorInstance: AssertionError, block: () -> Unit) {173      val throwable = catchThrowable(block)174      (throwable === assertionErrorInstance).shouldBeTrue()175   }176   private fun verifyThrowsWrongExceptionClass(177      thrownInstance: Throwable,178      expectedClass: KClass<*>,179      incorrectClass: KClass<*>,180      block: () -> Unit181   ) {182      val throwable = catchThrowable(block)183      throwable.shouldBeInstanceOf<AssertionError>()184      throwable.message shouldBe "Expected exception ${expectedClass.qualifiedName} but a ${incorrectClass.simpleName} was thrown instead."185      (throwable.cause === thrownInstance).shouldBeTrue()186   }...

verifyThrowsAssertionErrorInstance

Using AI Code Generation

1@DisplayName("Testing verifyThrowsAssertionErrorInstance method of com.sksamuel.kotest.throwablehandling.CovariantThrowableHandlingTest class")2fun testVerifyThrowsAssertionErrorInstance() {3    val testClass = CovariantThrowableHandlingTest()4    val actual = assertFailsWith<AssertionError> {5        testClass.verifyThrowsAssertionErrorInstance()6    }7    assertEquals("Expected an AssertionError", actual.message)8}9@DisplayName("Testing verifyThrowsAssertionErrorInstance method of com.sksamuel.kotest.throwablehandling.CovariantThrowableHandlingTest class")10fun testVerifyThrowsAssertionErrorInstance() {11    val testClass = CovariantThrowableHandlingTest()12    val actual = assertFailsWith<AssertionError> {13        testClass.verifyThrowsAssertionErrorInstance()14    }15    assertEquals("Expected an AssertionError", actual.message)16}17@DisplayName("Testing verifyThrowsAssertionErrorInstance method of com.sksamuel.kotest.throwablehandling.CovariantThrowableHandlingTest class")18fun testVerifyThrowsAssertionErrorInstance() {19    val testClass = CovariantThrowableHandlingTest()20    val actual = assertFailsWith<AssertionError> {21        testClass.verifyThrowsAssertionErrorInstance()22    }23    assertEquals("Expected an AssertionError", actual.message)24}25@DisplayName("Testing verifyThrowsAssertionErrorInstance method of com.sksamuel.kotest.throwablehandling.CovariantThrowableHandlingTest class")26fun testVerifyThrowsAssertionErrorInstance() {27    val testClass = CovariantThrowableHandlingTest()28    val actual = assertFailsWith<AssertionError> {29        testClass.verifyThrowsAssertionErrorInstance()30    }31    assertEquals("Expected an AssertionError", actual.message)32}33@DisplayName("Testing verifyThrowsAssertionErrorInstance method of com.sksamuel.kotest.throwablehandling.CovariantThrowableHandlingTest class")

verifyThrowsAssertionErrorInstance

Using AI Code Generation

1fun `verifyThrowsAssertionErrorInstance method of com.sksamuel.kotest.throwablehandling.CovariantThrowableHandlingTest class`(){2    val test = CovariantThrowableHandlingTest()3    test.verifyThrowsAssertionErrorInstance()4}5fun `verifyThrowsThrowableInstance method of com.sksamuel.kotest.throwablehandling.CovariantThrowableHandlingTest class`(){6    val test = CovariantThrowableHandlingTest()7    test.verifyThrowsThrowableInstance()8}9fun `verifyThrowsExceptionInstance method of com.sksamuel.kotest.throwablehandling.CovariantThrowableHandlingTest class`(){10    val test = CovariantThrowableHandlingTest()11    test.verifyThrowsExceptionInstance()12}13fun `verifyThrowsRuntimeExceptionInstance method of com.sksamuel.kotest.throwablehandling.CovariantThrowableHandlingTest class`(){14    val test = CovariantThrowableHandlingTest()15    test.verifyThrowsRuntimeExceptionInstance()16}17fun `verifyThrowsThrowableInstanceWithMessage method of com.sksamuel.kotest.throwablehandling.CovariantThrowableHandlingTest class`(){18    val test = CovariantThrowableHandlingTest()19    test.verifyThrowsThrowableInstanceWithMessage()20}21fun `verifyThrowsThrowableInstanceWithMessageAndCause method of com.sksamuel.kotest.throwablehandling.CovariantThrowableHandlingTest class`(){22    val test = CovariantThrowableHandlingTest()23    test.verifyThrowsThrowableInstanceWithMessageAndCause()24}

verifyThrowsAssertionErrorInstance

Using AI Code Generation

1@DisplayName ( "CovariantThrowableHandlingTest" ) @TestFactory fun covariantThrowableHandlingTest () = testFactory { context ( "CovariantThrowableHandlingTest" ) { test ( "verifyThrowsAssertionErrorInstance" ) { verifyThrowsAssertionErrorInstance () } } }2@DisplayName ( "CovariantThrowableHandlingTest" ) @TestFactory fun covariantThrowableHandlingTest () = testFactory { context ( "CovariantThrowableHandlingTest" ) { test ( "verifyThrowsAssertionErrorInstance" ) { verifyThrowsAssertionErrorInstance () } } }3@DisplayName ( "CovariantThrowableHandlingTest" ) @TestFactory fun covariantThrowableHandlingTest () = testFactory { context ( "CovariantThrowableHandlingTest" ) { test ( "verifyThrowsAssertionErrorInstance" ) { verifyThrowsAssertionErrorInstance () } } }4@DisplayName ( "CovariantThrowableHandlingTest" ) @TestFactory fun covariantThrowableHandlingTest () = testFactory { context ( "CovariantThrowableHandlingTest" ) { test ( "verifyThrowsAssertionErrorInstance" ) { verifyThrowsAssertionErrorInstance () } } }5@DisplayName ( "CovariantThrowableHandlingTest" ) @TestFactory fun covariantThrowableHandlingTest () = testFactory { context ( "CovariantThrowableHandlingTest" ) { test ( "verifyThrowsAssertionErrorInstance" ) { verifyThrowsAssertionErrorInstance () } } }6@DisplayName ( "CovariantThrowableHandlingTest" ) @TestFactory fun covariantThrowableHandlingTest () = testFactory { context ( "CovariantThrowableHandlingTest" ) { test ( "verifyThrowsAssertionErrorInstance" ) { verifyThrowsAssertionErrorInstance () } } }

verifyThrowsAssertionErrorInstance

Using AI Code Generation

1test("CovariantThrowableHandlingTest") {2verifyThrowsAssertionErrorInstance {3throw AssertionError("my message")4}5}6test("CovariantThrowableHandlingTest") {7verifyThrowsAssertionErrorInstance {8throw AssertionError("my message")9}10}11test("CovariantThrowableHandlingTest") {12verifyThrowsAssertionErrorInstance {13throw AssertionError("my message")14}15}16test("CovariantThrowableHandlingTest") {17verifyThrowsAssertionErrorInstance {18throw AssertionError("my message")19}20}21test("CovariantThrowableHandlingTest") {22verifyThrowsAssertionErrorInstance {23throw AssertionError("my message")24}25}26test("CovariantThrowableHandlingTest") {27verifyThrowsAssertionErrorInstance {28throw AssertionError("my message")29}30}31test("CovariantThrowableHandlingTest") {32verifyThrowsAssertionErrorInstance {33throw AssertionError("my message")34}35}36test("CovariantThrowableHandlingTest") {37verifyThrowsAssertionErrorInstance {38throw AssertionError("my message")39}40}41test("CovariantThrowableHandlingTest") {42verifyThrowsAssertionErrorInstance {43throw AssertionError("my message")44}45}46test("CovariantThrowableHandlingTest") {47verifyThrowsAssertionErrorInstance {48throw AssertionError("my message

verifyThrowsAssertionErrorInstance

Using AI Code Generation

1    verifyThrowsAssertionErrorInstance { throw AssertionError("message") }2    verifyThrowsAssertionErrorInstance { throw AssertionError() }3    verifyThrowsAssertionErrorInstance { throw AssertionError("message", Throwable()) }4    verifyThrowsAssertionErrorInstance { throw AssertionError(Throwable()) }5    verifyThrowsAssertionErrorInstance { throw AssertionError("message", Throwable(), true, true) }6    verifyThrowsAssertionErrorInstance { throw AssertionError(null, Throwable(), true, true) }7    verifyThrowsAssertionErrorInstance { throw AssertionError(null, null, true, true) }8    verifyThrowsAssertionErrorInstance { throw AssertionError(null, null, false, false) }9    verifyThrowsAssertionErrorInstance { throw AssertionError(null, null, false, true) }10    verifyThrowsAssertionErrorInstance { throw AssertionError(null, null, true, false) }11    verifyThrowsAssertionErrorInstance { throw AssertionError(null, null, true, true) }12    verifyThrowsAssertionErrorInstance { throw AssertionError("message", null, true, true) }13    verifyThrowsAssertionErrorInstance { throw AssertionError("message", null, false, false) }14    verifyThrowsAssertionErrorInstance { throw AssertionError("message", null, false, true) }15    verifyThrowsAssertionErrorInstance { throw AssertionError("message", null, true, false) }16    verifyThrowsAssertionErrorInstance { throw AssertionError("message", null, true, true) }17    verifyThrowsAssertionErrorInstance { throw AssertionError(null, Throwable(), false, false) }18    verifyThrowsAssertionErrorInstance { throw AssertionError(null, Throwable(), false, true) }19    verifyThrowsAssertionErrorInstance { throw AssertionError(null, Throwable(), true, false) }20    verifyThrowsAssertionErrorInstance { throw AssertionError(null, Throwable(), true, true) }21    verifyThrowsAssertionErrorInstance { throw AssertionError("message", Throwable(), false, false) }22    verifyThrowsAssertionErrorInstance { throw AssertionError("message", Throwable(), false, true) }23    verifyThrowsAssertionErrorInstance { throw AssertionError("message", Throwable(), true, false) }24    verifyThrowsAssertionErrorInstance { throw AssertionError("message", Throwable(), true, true) }25    verifyThrowsAssertionErrorInstance { throw AssertionError() }26    verifyThrowsAssertionErrorInstance { throw AssertionError("message") }27    verifyThrowsAssertionErrorInstance { throw AssertionError("message", Throwable()) }28    verifyThrowsAssertionErrorInstance { throw AssertionError(Throwable()) }29    verifyThrowsAssertionErrorInstance { throw AssertionError("message", Throwable(), true, true) }

verifyThrowsAssertionErrorInstance

Using AI Code Generation

1val exception = assertFailsWith<AssertionError> {2}3assertEquals("expected message", exception.message)4}5}6}7import io.kotest.assertions.throwablehandling.verifyThrowsAssertionErrorInstance8import io.kotest.core.spec.style.StringSpec9import kotlin.test.assertFailsWith10class CovariantThrowableHandlingTest : StringSpec() {11init {12"verifyThrowsAssertionErrorInstance should throw an instance of AssertionError with the expected message when the given code block throws an instance of AssertionError with the expected message" {13val exception = assertFailsWith<AssertionError> {14}15assertEquals("expected message", exception.message)16}17}18}19import io.kotest.assertions.throwablehandling.verifyThrowsAssertionErrorInstance20import io.kotest.core.spec.style.StringSpec21import kotlin.test.assertFailsWith22class CovariantThrowableHandlingTest : StringSpec() {23init {24"verifyThrowsAssertionErrorInstance should throw an instance of AssertionError with the expected message when the given code block throws an instance of AssertionError with the expected message" {

Automation Testing Tutorials

Learn to execute automation testing from scratch with LambdaTest Learning Hub. Right from setting up the prerequisites to run your first automation test, to following best practices and diving deeper into advanced test scenarios. LambdaTest Learning Hubs compile a list of step-by-step guides to help you be proficient with different test automation frameworks i.e. Selenium, Cypress, TestNG etc.