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

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

CovariantThrowableHandlingTest.kt

Source:CovariantThrowableHandlingTest.kt

...16   init {17      "Should throw" - {18         "Should throw a new exception" - {19            "When no exception is thrown" {20               onShouldThrowMatcher<FooRuntimeException> { shouldThrowMatcher ->21                  verifyNoExceptionThrownError(FooRuntimeException::class) {22                     shouldThrowMatcher { /* No exception is thrown */ }23                  }24               }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,...

onShouldThrowMatcher

Using AI Code Generation

1import io.kotest.assertions.throwables.shouldThrow2import io.kotest.core.spec.style.StringSpec3import io.kotest.matchers.shouldBe4import io.kotest.matchers.throwable.shouldHaveCauseInstanceOf5import io.kotest.matchers.throwable.shouldHaveMessage6import io.kotest.matchers.throwable.shouldHaveMessageContaining7import io.kotest.matchers.throwable.shouldHaveMessageStartingWith8import io.kotest.matchers.throwable.shouldHaveMessageEndingWith9import io.kotest.matchers.throwable.shouldHaveMessageMatching10class CovariantThrowableHandlingTest : StringSpec({11   "shouldThrow should match exception type" {12      shouldThrow<IllegalArgumentException> {13         throw IllegalArgumentException("hello")14      }15   }16   "shouldThrow should match exception type and message" {17      shouldThrow<IllegalArgumentException> {18         throw IllegalArgumentException("hello")19      }.message shouldBe "hello"20   }21   "shouldThrow should match exception type and message with matcher" {22      shouldThrow<IllegalArgumentException> {23         throw IllegalArgumentException("hello")24      }.shouldHaveMessage("hello")25   }26   "shouldThrow should match exception type and message with matcher containing" {27      shouldThrow<IllegalArgumentException> {28         throw IllegalArgumentException("hello")29      }.shouldHaveMessageContaining("hel")30   }31   "shouldThrow should match exception type and message with matcher starting with" {32      shouldThrow<IllegalArgumentException> {33         throw IllegalArgumentException("hello")34      }.shouldHaveMessageStartingWith("he")35   }36   "shouldThrow should match exception type and message with matcher ending with" {37      shouldThrow<IllegalArgumentException> {38         throw IllegalArgumentException("hello")39      }.shouldHaveMessageEndingWith("lo")40   }41   "shouldThrow should match exception type and message with matcher matching" {42      shouldThrow<IllegalArgumentException> {43         throw IllegalArgumentException("hello")44      }.shouldHaveMessageMatching("h.*o")45   }46   "shouldThrow should match exception type and cause" {47      shouldThrow<IllegalArgumentException> {48         throw IllegalArgumentException("hello", RuntimeException("cause"))49      }.cause shouldBe RuntimeException("cause")50   }51   "shouldThrow should match exception type and cause with matcher" {52      shouldThrow<IllegalArgumentException> {53         throw IllegalArgumentException("hello", RuntimeException("cause"))54      }.shouldHaveCauseInstanceOf<RuntimeException>()55   }56})

onShouldThrowMatcher

Using AI Code Generation

1import io.kotest.core.spec.style.StringSpec2import io.kotest.matchers.throwable.shouldThrow3import io.kotest.matchers.throwable.shouldThrowAny4import io.kotest.matchers.throwable.shouldThrowExactly5import io.kotest.matchers.throwable.shouldThrowInstanceOf6import io.kotest.matchers.types.beInstanceOf7import java.io.FileNotFoundException8import java.io.IOException9class CovariantThrowableHandlingTest : StringSpec({10   "shouldThrowAny should throw an exception" {11      shouldThrowAny {12         throw IOException()13      }14   }15   "shouldThrowAny should throw an exception of a subclass" {16      shouldThrowAny {17         throw FileNotFoundException()18      }19   }20   "shouldThrowInstanceOf should throw an exception" {21      shouldThrowInstanceOf<IOException> {22         throw IOException()23      }24   }25   "shouldThrowInstanceOf should throw an exception of a subclass" {26      shouldThrowInstanceOf<IOException> {27         throw FileNotFoundException()28      }29   }30   "shouldThrow should throw an exception" {31      shouldThrow<IOException> {32         throw IOException()33      }34   }35   "shouldThrow should throw an exception of a subclass" {36      shouldThrow<IOException> {37         throw FileNotFoundException()38      }39   }40   "shouldThrowExactly should throw an exception" {41      shouldThrowExactly<IOException> {42         throw IOException()43      }44   }45   "shouldThrowExactly should not throw an exception of a subclass" {46      shouldThrowExactly<IOException> {47         throw FileNotFoundException()48      }49   }50   "shouldThrowExactly should not throw an exception of a different type" {51      shouldThrowExactly<IOException> {52         throw IllegalArgumentException()53      }54   }55   "shouldThrow should not throw an exception of a different type" {56      shouldThrow<IOException> {57         throw IllegalArgumentException()58      }59   }60   "shouldThrowInstanceOf should not throw an exception of a different type" {61      shouldThrowInstanceOf<IOException> {62         throw IllegalArgumentException()63      }64   }65   "shouldThrowAny should not throw an exception of a different type" {66      shouldThrowAny {67         throw IllegalArgumentException()68      }69   }70   "shouldThrowInstanceOf should not throw an exception of a different type" {71      shouldThrowInstanceOf<IOException> {72         throw IllegalArgumentException()73      }74   }75   "shouldThrowAny should not throw an exception of a different type" {

onShouldThrowMatcher

Using AI Code Generation

1import io.kotest.core.spec.style.FunSpec2import io.kotest.matchers.throwable.shouldThrow3class CovariantThrowableHandlingTest : FunSpec({4   test("shouldThrow should be covariant") {5      shouldThrow<Throwable> { throw Exception() }6   }7})8import io.kotest.core.spec.style.FunSpec9import io.kotest.matchers.throwable.shouldThrow10class CovariantThrowableHandlingTest : FunSpec({11   test("shouldThrow should be covariant") {12      shouldThrow<Throwable> { throw Exception() }13   }14})15import io.kotest.core.spec.style.FunSpec16import io.kotest.matchers.throwable.shouldThrow17class CovariantThrowableHandlingTest : FunSpec({18   test("shouldThrow should be covariant") {19      shouldThrow<Throwable> { throw Exception() }20   }21})22import io.kotest.core.spec.style.FunSpec23import io.kotest.matchers.throwable.shouldThrow24class CovariantThrowableHandlingTest : FunSpec({25   test("shouldThrow should be covariant") {26      shouldThrow<Throwable> { throw Exception() }27   }28})29import io.kotest.core.spec.style.FunSpec30import io.kotest.matchers.throwable.shouldThrow31class CovariantThrowableHandlingTest : FunSpec({32   test("shouldThrow should be covariant") {33      shouldThrow<Throwable> { throw Exception() }34   }35})36import io.kotest.core.spec.style.FunSpec37import io.kotest.matchers.throwable.shouldThrow38class CovariantThrowableHandlingTest : FunSpec({39   test("shouldThrow should be covariant") {40      shouldThrow<Throwable> { throw Exception() }41   }42})

onShouldThrowMatcher

Using AI Code Generation

1import io.kotest.core.spec.style.StringSpec2import io.kotest.matchers.throwable.shouldThrow3import io.kotest.matchers.throwable.shouldThrowAny4class CovariantThrowableHandlingTest : StringSpec() {5    init {6        "shouldThrowAny should not be covariant" {7        }8        "shouldThrow should not be covariant" {9        }10    }11}12import io.kotest.core.spec.style.StringSpec13import io.kotest.matchers.throwable.shouldThrow14import io.kotest.matchers.throwable.shouldThrowAny15class CovariantThrowableHandlingTest : StringSpec() {16    init {17        "shouldThrowAny should not be covariant" {18        }19        "shouldThrow should not be covariant" {20        }21    }22}23import io.kotest.core.spec.style.StringSpec24import io.kotest.matchers.throwable.shouldThrow25import io.kotest.matchers.throwable.shouldThrowAny26class CovariantThrowableHandlingTest : StringSpec() {27    init {28        "shouldThrowAny should not be covariant" {29        }30        "shouldThrow should not be covariant" {31        }32    }33}34import io.kotest.core.spec.style.String

onShouldThrowMatcher

Using AI Code Generation

1import io.kotest.assertions.throwables.shouldThrow2import io.kotest.core.spec.style.ShouldSpec3import io.kotest.matchers.throwable.shouldHaveMessage4import io.kotest.matchers.throwable.shouldHaveMessageContaining5import io.kotest.matchers.throwable.shouldHaveMessageStartingWith6import io.kotest.matchers.throwable.shouldHaveMessageEndingWith7import io.kotest.matchers.throwable.shouldHaveMessageMatching8import io.kotest.matchers.throwable.shouldHaveCause9import io.kotest.matchers.throwable.shouldHaveCauseInstanceOf10import io.kotest.matchers.throwable.shouldHaveCauseWithMessage11import io.kotest.matchers.throwable.shouldHaveCauseWithMessageContaining12import io.kotest.matchers.throwable.shouldHaveCauseWithMessageStartingWith13import io.kotest.matchers.throwable.shouldHaveCauseWithMessageEndingWith14import io.kotest.matchers.throwable.shouldHaveCauseWithMessageMatching15import io.kotest.matchers.throwable.shouldHaveNoCause16import io.kotest.matchers.throwable.shouldHaveStackTraceContaining17import io.kotest.matchers.throwable.shouldHaveSuppressedException18import io.kotest.matchers.throwable.shouldHaveSuppressedExceptionInstanceOf19import io.kotest.matchers.throwable.shouldHaveSuppressedExceptionWithMessage20import io.kotest.matchers.throwable.shouldHaveSuppressedExceptionWithMessageContaining21import io.kotest.matchers.throwable.shouldHaveSuppressedExceptionWithMessageStartingWith22import io.kotest.matchers.throwable.shouldHaveSuppressedExceptionWithMessageEndingWith23import io.kotest.matchers.throwable.shouldHaveSuppressedExceptionWithMessageMatching24import io.kotest.matchers.throwable.shouldHaveSuppressedExceptionWithCause25import io.kotest.matchers.throwable.shouldHaveSuppressedExceptionWithCauseInstanceOf26import io.kotest.matchers.throwable.shouldHaveSuppressedExceptionWithCauseWithMessage27import io.kotest.matchers.throwable.shouldHaveSuppressedExceptionWithCauseWithMessageContaining28import io.kotest.matchers.throwable.shouldHaveSuppressedExceptionWithCauseWithMessageStartingWith29import io.kotest.matchers.throwable.shouldHaveSuppressedExceptionWithCauseWithMessageEndingWith30import io.kotest.matchers.throwable.shouldHaveSuppressedExceptionWithCauseWithMessageMatching31import io.kotest.matchers.throwable.should

onShouldThrowMatcher

Using AI Code Generation

1    fun testShouldThrowMatcher() {2        shouldThrow<IllegalArgumentException> {3            throw IllegalArgumentException("test")4        }5    }6    fun testShouldNotThrowMatcher() {7        shouldNotThrow<IllegalArgumentException> {8            throw IllegalStateException("test")9        }10    }11    fun testShouldNotThrowAnyMatcher() {12        shouldNotThrowAny {13            throw IllegalStateException("test")14        }15    }16    fun testShouldThrowAnyMatcher() {17        shouldThrowAny {18            throw IllegalArgumentException("test")19        }20    }21    fun testShouldThrowAnyMatcher() {22        shouldThrowAny {23            throw IllegalArgumentException("test")24        }25    }26    fun testShouldThrowAnyMatcher() {27        shouldThrowAny {28            throw IllegalArgumentException("test")29        }30    }31    fun testShouldThrowAnyMatcher() {32        shouldThrowAny {33            throw IllegalArgumentException("test")34        }35    }36    fun testShouldThrowAnyMatcher() {37        shouldThrowAny {38            throw IllegalArgumentException("test")39        }40    }41    fun testShouldThrowAnyMatcher() {42        shouldThrowAny {43            throw IllegalArgumentException("test")44        }45    }

onShouldThrowMatcher

Using AI Code Generation

1java.lang.NoSuchMethodError: com.sksamuel.kotest.throwablehandling.CovariantThrowableHandlingTest.shouldThrowMatcher(Lkotlin/jvm/functions/Function1;Lkotlin/jvm/functions/Function1;)V2at com.sksamuel.kotest.throwablehandling.CovariantThrowableHandlingTest$shouldThrowMatcher$1.invokeSuspend(CovariantThrowableHandlingTest.kt:19)3at kotlin.coroutines.jvm.internal.BaseContinuationImpl.resumeWith(ContinuationImpl.kt:33)4at kotlinx.coroutines.DispatchedTask.run(DispatchedTask.kt:56)5at kotlinx.coroutines.scheduling.CoroutineScheduler.runSafely(CoroutineScheduler.kt:571)6at kotlinx.coroutines.scheduling.CoroutineScheduler$Worker.executeTask(CoroutineScheduler.kt:738)7at kotlinx.coroutines.scheduling.CoroutineScheduler$Worker.runWorker(CoroutineScheduler.kt:678)8at kotlinx.coroutines.scheduling.CoroutineScheduler$Worker.run(CoroutineScheduler.kt:665)9I have a similar problem with a test that I wrote for a project I’m working on. I’m using the latest version of Kotest (4.4.1) and I’m getting the following error:10java.lang.NoSuchMethodError: io.kotest.assertions.throwablehandling.CovariantThrowableHandlingTest.shouldThrowMatcher(Lkotlin/jvm/functions/Function1;Lkotlin/jvm/functions/Function1;)V11at io.kotest.assertions.throwablehandling.CovariantThrowableHandlingTest$shouldThrowMatcher$1.invokeSuspend(Cov

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