Brian Norman
93 lines
2.8 KiB
Kotlin
93 lines
2.8 KiB
Kotlin
/*
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* Copyright (C) 2020 Brian Norman
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.bnorm.power
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import com.tschuchort.compiletesting.KotlinCompilation
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import com.tschuchort.compiletesting.SourceFile
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import org.intellij.lang.annotations.Language
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import org.jetbrains.kotlin.compiler.plugin.CompilerPluginRegistrar
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import org.jetbrains.kotlin.name.FqName
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import java.io.OutputStream
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import java.lang.reflect.InvocationTargetException
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import kotlin.test.assertEquals
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import kotlin.test.fail
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private val DEFAULT_COMPILER_PLUGIN_REGISTRARS = arrayOf(
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PowerAssertCompilerPluginRegistrar(setOf(FqName("kotlin.assert"))),
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)
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fun compile(
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list: List<SourceFile>,
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vararg compilerPluginRegistrars: CompilerPluginRegistrar = DEFAULT_COMPILER_PLUGIN_REGISTRARS,
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): KotlinCompilation.Result {
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return KotlinCompilation().apply {
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sources = list
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messageOutputStream = object : OutputStream() {
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override fun write(b: Int) {
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// black hole all writes
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}
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override fun write(b: ByteArray, off: Int, len: Int) {
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// black hole all writes
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}
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}
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this.compilerPluginRegistrars = compilerPluginRegistrars.toList()
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inheritClassPath = true
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}.compile()
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}
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fun executeAssertion(
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@Language("kotlin") source: String,
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vararg compilerPluginRegistrars: CompilerPluginRegistrar = DEFAULT_COMPILER_PLUGIN_REGISTRARS,
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): String {
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val result = compile(
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listOf(SourceFile.kotlin("main.kt", source, trimIndent = false)),
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*compilerPluginRegistrars,
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)
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assertEquals(KotlinCompilation.ExitCode.OK, result.exitCode, result.messages)
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val kClazz = result.classLoader.loadClass("MainKt")
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val main = kClazz.declaredMethods.single { it.name == "main" && it.parameterCount == 0 }
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try {
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try {
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main.invoke(null)
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} catch (t: InvocationTargetException) {
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throw t.cause!!
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}
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fail("should have thrown assertion")
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} catch (t: Throwable) {
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return t.message ?: ""
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}
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}
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fun executeMainAssertion(mainBody: String) = executeAssertion(
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"""
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fun main() {
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$mainBody
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}
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""",
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)
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fun assertMessage(
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@Language("kotlin") source: String,
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message: String,
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vararg compilerPluginRegistrars: CompilerPluginRegistrar = DEFAULT_COMPILER_PLUGIN_REGISTRARS,
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) {
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val actual = executeAssertion(source, *compilerPluginRegistrars)
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assertEquals(message, actual)
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}
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