Ilya Gorbunov
73 lines
2.1 KiB
Kotlin
73 lines
2.1 KiB
Kotlin
/*
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* Copyright 2010-2018 JetBrains s.r.o. and Kotlin Programming Language contributors.
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* Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
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*/
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package kotlin.test.junit
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import org.junit.*
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import kotlin.test.*
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/**
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* Provides [JUnitAsserter] if `org.junit.Assert` is found in the classpath.
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*/
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public class JUnitContributor : AsserterContributor {
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override fun contribute(): Asserter? {
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return if (hasJUnitInClassPath) JUnitAsserter else null
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}
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private val hasJUnitInClassPath = try {
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Class.forName("org.junit.Assert")
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true
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} catch (_: ClassNotFoundException) {
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false
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}
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}
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/**
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* Implements `kotlin.test` assertions by delegating them to `org.junit.Assert` class.
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*/
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public object JUnitAsserter : Asserter {
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override fun assertEquals(message: String?, expected: Any?, actual: Any?) {
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Assert.assertEquals(message, expected, actual)
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}
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override fun assertNotEquals(message: String?, illegal: Any?, actual: Any?) {
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Assert.assertNotEquals(message, illegal, actual)
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}
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override fun assertSame(message: String?, expected: Any?, actual: Any?) {
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Assert.assertSame(message, expected, actual)
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}
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override fun assertNotSame(message: String?, illegal: Any?, actual: Any?) {
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Assert.assertNotSame(message, illegal, actual)
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}
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override fun assertNotNull(message: String?, actual: Any?) {
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Assert.assertNotNull(message ?: "actual value is null", actual)
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}
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override fun assertNull(message: String?, actual: Any?) {
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Assert.assertNull(message ?: "actual value is not null", actual)
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}
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override fun fail(message: String?): Nothing {
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Assert.fail(message)
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// should not get here
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throw AssertionError(message)
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}
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@SinceKotlin("1.4")
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override fun fail(message: String?, cause: Throwable?): Nothing {
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try {
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Assert.fail(message)
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} catch (e: AssertionError) {
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e.initCause(cause)
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throw e
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}
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// should not get here
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throw AssertionError(message).initCause(cause)
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}
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}
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