org.apache.geode.internal.DeployedJarJUnitTest.java Source code

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Here is the source code for org.apache.geode.internal.DeployedJarJUnitTest.java

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/*
 * 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
 *
 * http://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.geode.internal;

import static org.assertj.core.api.Assertions.assertThat;
import static org.assertj.core.api.Assertions.assertThatThrownBy;

import org.apache.geode.test.compiler.JarBuilder;
import org.apache.geode.test.junit.categories.IntegrationTest;

import org.apache.commons.io.FileUtils;
import org.junit.Before;
import org.junit.Rule;
import org.junit.Test;
import org.junit.experimental.categories.Category;
import org.junit.rules.TemporaryFolder;

import java.io.File;
import java.io.IOException;

@Category(IntegrationTest.class)
public class DeployedJarJUnitTest {
    private static final String JAR_NAME = "test.jar";
    @Rule
    public TemporaryFolder temporaryFolder = new TemporaryFolder();

    private JarBuilder jarBuilder;
    private File jarFile;
    private byte[] expectedJarBytes;

    @Before
    public void setup() throws Exception {
        jarBuilder = new JarBuilder();
        jarFile = new File(temporaryFolder.getRoot(), JAR_NAME);
        jarBuilder.buildJarFromClassNames(jarFile, "ExpectedClass");
        expectedJarBytes = FileUtils.readFileToByteArray(jarFile);
    }

    @Test
    public void validJarContentDoesNotThrow() throws Exception {
        new DeployedJar(jarFile, JAR_NAME, expectedJarBytes);
    }

    @Test
    public void unexpectedContentThrowsException() throws Exception {
        givenUnexpectedJarFileContents();

        assertThatThrownBy(() -> new DeployedJar(jarFile, JAR_NAME, expectedJarBytes))
                .isInstanceOf(IllegalStateException.class);
    }

    @Test
    public void invalidContentThrowsException() throws Exception {
        byte[] invalidJarBytes = givenInvalidJarBytes();

        assertThatThrownBy(() -> new DeployedJar(jarFile, JAR_NAME, invalidJarBytes))
                .isInstanceOf(IllegalArgumentException.class);
    }

    private void givenUnexpectedJarFileContents() throws IOException {
        FileUtils.deleteQuietly(jarFile);
        jarBuilder.buildJarFromClassNames(jarFile, "UnexpectedClass");
    }

    private byte[] givenInvalidJarBytes() throws IOException {
        byte[] invalidJarBytes = "INVALID JAR CONTENT".getBytes();
        FileUtils.writeByteArrayToFile(jarFile, invalidJarBytes);

        return invalidJarBytes;
    }
}