TypeScriptDTOGeneratorMojoTest.java

/*******************************************************************************
 * Copyright (c) 2012-2017 Codenvy, S.A.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *   Codenvy, S.A. - initial API and implementation
 *******************************************************************************/
package org.eclipse.che.plugin.typescript.dto;

import org.apache.maven.plugin.testing.MojoRule;
import org.apache.maven.plugin.testing.resources.TestResources;
import org.junit.Assert;
import org.junit.Rule;
import org.junit.Test;

import java.io.BufferedReader;
import java.io.File;
import java.nio.file.Files;

import static java.nio.charset.StandardCharsets.UTF_8;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertTrue;

/**
 * @author Florent Benoit
 */
public class TypeScriptDTOGeneratorMojoTest {

    /**
     * Rule to manage the mojo (inject, get variables from mojo)
     */
    @Rule
    public MojoRule rule = new MojoRule();

    /**
     * Resources of each test mapped on the name of the method
     */
    @Rule
    public TestResources resources = new TestResources();


    /**
     * Helper method used to inject data in mojo
     * @param mojo the mojo
     * @param baseDir root dir on which we extract files
     * @throws IllegalAccessException if unable to set variables
     */
    protected void configure(TypeScriptDTOGeneratorMojo mojo, File baseDir) throws Exception {
        this.rule.setVariableValueToObject(mojo, "targetDirectory", this.resources.getBasedir(""));
        this.rule.setVariableValueToObject(mojo, "useClassPath", true);
    }

    /**
     * Check that the TypeScript definition is generated and that WorkspaceDTO is generated (dependency is part of the test)
     */
    @Test
    public void testCheckTypeScriptGenerated() throws Exception {

        File projectCopy = this.resources.getBasedir("project");
        File pom = new File(projectCopy, "pom.xml");
        assertNotNull(pom);
        assertTrue(pom.exists());

        TypeScriptDTOGeneratorMojo mojo = (TypeScriptDTOGeneratorMojo) this.rule.lookupMojo("build", pom);
        configure(mojo, projectCopy);
        mojo.execute();

        File typeScriptFile = mojo.getTypescriptFile();
        // Check file has been generated
        Assert.assertTrue(typeScriptFile.exists());

        // Now check there is "org.eclipse.che.plugin.typescript.dto.MyCustomDTO" inside
        boolean foundMyCustomDTO = false;
        try (BufferedReader reader = Files.newBufferedReader(typeScriptFile.toPath(), UTF_8)) {
            String line = reader.readLine();
            while (line != null && !foundMyCustomDTO) {
                if (line.contains("MyCustomDTO")) {
                    foundMyCustomDTO = true;
                }
                line = reader.readLine();
            }
        }

        Assert.assertTrue("The MyCustomDTO has not been generated in the typescript definition file.", foundMyCustomDTO);

    }


}