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 Github

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...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...

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verifyThrowsWrongExceptionClass

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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}

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verifyThrowsWrongExceptionClass

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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() } }

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