src/test/java/org/apache/bcel/util/ModularRuntimeImageTest.java

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   https://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */

package org.apache.bcel.util;

import static org.junit.jupiter.api.Assertions.assertFalse;
import static org.junit.jupiter.api.Assertions.assertTrue;
import static org.junit.jupiter.api.Assumptions.assumeTrue;

import java.io.IOException;
import java.nio.file.Path;
import java.util.List;

import org.apache.commons.lang3.JavaVersion;
import org.apache.commons.lang3.SystemUtils;
import org.junit.jupiter.api.BeforeAll;
import org.junit.jupiter.params.ParameterizedTest;
import org.junit.jupiter.params.provider.MethodSource;

/**
 * Tests {@link ModularRuntimeImage}.
 */
class ModularRuntimeImageTest {

    @BeforeAll
    public static void before() {
        assumeTrue(SystemUtils.isJavaVersionAtLeast(JavaVersion.JAVA_9));
    }

    @ParameterizedTest
    @MethodSource("org.apache.bcel.generic.JavaHome#streamModularRuntimeImage")
    void testListJreModule(final ModularRuntimeImage modularRuntimeImage) throws IOException {
        final List<Path> listEntries = modularRuntimeImage.list(ModularRuntimeImage.MODULES_PATH + "/java.base");
        assertFalse(listEntries.isEmpty());
        assertTrue(listEntries.toString().indexOf("/java.base") > -1);
    }

    @ParameterizedTest
    @MethodSource("org.apache.bcel.generic.JavaHome#streamModularRuntimeImage")
    void testListJreModulePackageDir(final ModularRuntimeImage modularRuntimeImage) throws IOException {
        final List<Path> listEntries = modularRuntimeImage.list(ModularRuntimeImage.MODULES_PATH + "/java.base/java/lang");
        assertFalse(listEntries.isEmpty());
        assertTrue(listEntries.toString().indexOf("/java.base/java/lang/String.class") > -1);
    }

    @ParameterizedTest
    @MethodSource("org.apache.bcel.generic.JavaHome#streamModularRuntimeImage")
    void testListJreModules(final ModularRuntimeImage modularRuntimeImage) throws IOException {
        final List<Path> listEntries = modularRuntimeImage.list(ModularRuntimeImage.MODULES_PATH);
        assertFalse(listEntries.isEmpty());
        assertTrue(listEntries.toString().indexOf("/java.base") > -1);
    }

    @ParameterizedTest
    @MethodSource("org.apache.bcel.generic.JavaHome#streamModularRuntimeImage")
    void testListJrePackages(final ModularRuntimeImage modularRuntimeImage) throws IOException {
        final List<Path> listEntries = modularRuntimeImage.list(ModularRuntimeImage.PACKAGES_PATH);
        assertFalse(listEntries.isEmpty());
        assertTrue(listEntries.toString().indexOf("java.lang") > -1);
    }
}