KaneAI - World’s First E2E Software Testing Agent.Book a Demo Join TestMu Conference

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

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

CovariantThrowableHandlingTest.kt

Source:CovariantThrowableHandlingTest.kt

...25            }26            "When an exception is thrown, but it's not the right class" {27               val instanceToThrow = NullPointerException()28               onShouldThrowMatcher<FooRuntimeException> { shouldThrowMatcher ->29                  verifyThrowsWrongExceptionClass(30                     instanceToThrow,31                     FooRuntimeException::class,32                     NullPointerException::class33                  ) {34                     shouldThrowMatcher { throw instanceToThrow }35                  }36               }37            }38            "When an exception is thrown, but it's the parent class of the right class" {39               val instanceToThrow = ParentException()40               onShouldThrowMatcher<SubException> { shouldThrowMatcher ->41                  verifyThrowsWrongExceptionClass(instanceToThrow, SubException::class, ParentException::class) {42                     shouldThrowMatcher { throw instanceToThrow }43                  }44               }45            }46         }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   }187   private fun verifyThrowsWrongExceptionMessage(188      expectedMessage: String,189      actualMessage: String,190      block: () -> Unit...

verifyThrowsWrongExceptionClass

Using AI Code Generation

1    fun `verifyThrowsWrongExceptionClass method of com.sksamuel.kotest.throwablehandling.CovariantThrowableHandlingTest class`() {2        verifyThrowsWrongExceptionClass()3    }4    fun `verifyThrowsWrongExceptionClass method of com.sksamuel.kotest.throwablehandling.CovariantThrowableHandlingTest class`() {5        verifyThrowsWrongExceptionClass()6    }7    fun `verifyThrowsWrongExceptionClass method of com.sksamuel.kotest.throwablehandling.CovariantThrowableHandlingTest class`() {8        verifyThrowsWrongExceptionClass()9    }10    fun `verifyThrowsWrongExceptionClass method of com.sksamuel.kotest.throwablehandling.CovariantThrowableHandlingTest class`() {11        verifyThrowsWrongExceptionClass()12    }13}

verifyThrowsWrongExceptionClass

Using AI Code Generation

1@DisplayName("Covariant Throwable Handling Test") class CovariantThrowableHandlingTest { @Test fun `verifyThrowsWrongExceptionClass`() { verifyThrowsWrongExceptionClass() } }2@DisplayName("Covariant Throwable Handling Test") class CovariantThrowableHandlingTest { @Test fun `verifyThrowsWrongExceptionClass`() { verifyThrowsWrongExceptionClass() } }3@DisplayName("Covariant Throwable Handling Test") class CovariantThrowableHandlingTest { @Test fun `verifyThrowsWrongExceptionClass`() { verifyThrowsWrongExceptionClass() } }4@DisplayName("Covariant Throwable Handling Test") class CovariantThrowableHandlingTest { @Test fun `verifyThrowsWrongExceptionClass`() { verifyThrowsWrongExceptionClass() } }5@DisplayName("Covariant Throwable Handling Test") class CovariantThrowableHandlingTest { @Test fun `verifyThrowsWrongExceptionClass`() { verifyThrowsWrongExceptionClass() } }6@DisplayName("Covariant Throwable Handling Test") class CovariantThrowableHandlingTest { @Test fun `verifyThrowsWrongExceptionClass`() { verifyThrowsWrongExceptionClass() } }7@DisplayName("Covariant Throwable Handling Test") class CovariantThrowableHandlingTest { @Test fun `verifyThrowsWrongExceptionClass`() { verifyThrowsWrongExceptionClass() } }8@DisplayName("Covariant Throwable Handling Test") class CovariantThrowableHandlingTest { @Test fun `verifyThrowsWrongExceptionClass`() { verifyThrowsWrongExceptionClass() } }

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.