org.eclipse.handly.examples.jmodel.tests/src/org/eclipse/handly/internal/examples/jmodel/JavaProjectTest.java

/*******************************************************************************
 * Copyright (c) 2015, 2022 1C-Soft LLC.
 *
 * This program and the accompanying materials are made available under
 * the terms of the Eclipse Public License 2.0 which is available at
 * https://www.eclipse.org/legal/epl-2.0/
 *
 * SPDX-License-Identifier: EPL-2.0
 *
 * Contributors:
 *     Vladimir Piskarev (1C) - initial API and implementation
 *******************************************************************************/
package org.eclipse.handly.internal.examples.jmodel;

import java.util.Arrays;

import org.eclipse.core.resources.IFile;
import org.eclipse.core.resources.IFolder;
import org.eclipse.core.resources.IProject;
import org.eclipse.core.resources.IResource;
import org.eclipse.handly.examples.jmodel.IJavaProject;
import org.eclipse.handly.examples.jmodel.IPackageFragmentRoot;
import org.eclipse.handly.examples.jmodel.JavaModelCore;
import org.eclipse.handly.junit.WorkspaceTestCase;

/**
 * <code>JavaProject</code> tests.
 * <p>
 * <b>Note</b> In this example model, only source folders that are direct
 * children of the project resource are represented as package fragment roots.
 * Other classpath entries are ignored.
 * </p>
 */
public class JavaProjectTest
    extends WorkspaceTestCase
{
    public void test001() throws Exception
    {
        IProject project = setUpProject("Test001");
        IJavaProject javaProject = JavaModelCore.create(project);

        IPackageFragmentRoot[] roots = javaProject.getPackageFragmentRoots();
        assertEquals(0, roots.length);

        IResource[] nonJavaResources = javaProject.getNonJavaResources();
        assertEquals(2, nonJavaResources.length);
        assertTrue(Arrays.asList(nonJavaResources).contains(project.getFile(
            ".project")));
        assertTrue(Arrays.asList(nonJavaResources).contains(project.getFolder(
            ".settings")));
    }

    public void test002() throws Exception
    {
        IProject project = setUpProject("Test002");
        IJavaProject javaProject = JavaModelCore.create(project);

        IPackageFragmentRoot[] roots = javaProject.getPackageFragmentRoots();
        assertEquals(0, roots.length);

        IResource[] nonJavaResources = javaProject.getNonJavaResources();
        assertEquals(3, nonJavaResources.length);
        assertTrue(Arrays.asList(nonJavaResources).contains(project.getFile(
            ".project")));
        assertTrue(Arrays.asList(nonJavaResources).contains(project.getFile(
            ".classpath")));
        assertTrue(Arrays.asList(nonJavaResources).contains(project.getFolder(
            ".settings")));
    }

    public void test003() throws Exception
    {
        IProject project = setUpProject("Test003");
        IJavaProject javaProject = JavaModelCore.create(project);

        IPackageFragmentRoot[] roots = javaProject.getPackageFragmentRoots();
        assertEquals(1, roots.length);
        IPackageFragmentRoot srcRoot = javaProject.getPackageFragmentRoot(
            project.getFolder("src"));
        assertEquals(srcRoot, roots[0]);
        assertTrue(srcRoot.exists());

        IResource[] nonJavaResources = javaProject.getNonJavaResources();
        assertEquals(5, nonJavaResources.length);
        assertTrue(Arrays.asList(nonJavaResources).contains(project.getFile(
            ".project")));
        assertTrue(Arrays.asList(nonJavaResources).contains(project.getFile(
            ".classpath")));
        assertTrue(Arrays.asList(nonJavaResources).contains(project.getFolder(
            ".settings")));
        assertTrue(Arrays.asList(nonJavaResources).contains(project.getFolder(
            "abc")));
        assertTrue(Arrays.asList(nonJavaResources).contains(project.getFolder(
            "bin")));
    }

    public void test004() throws Exception
    {
        IProject project = setUpProject("Test004");
        IJavaProject javaProject = JavaModelCore.create(project);

        IPackageFragmentRoot[] roots = javaProject.getPackageFragmentRoots();
        assertEquals(2, roots.length);
        IPackageFragmentRoot srcRoot = javaProject.getPackageFragmentRoot(
            project.getFolder("src"));
        assertEquals(srcRoot, roots[0]);
        assertTrue(srcRoot.exists());
        IPackageFragmentRoot srcGenRoot = javaProject.getPackageFragmentRoot(
            project.getFolder("src-gen"));
        assertEquals(srcGenRoot, roots[1]);
        assertTrue(srcGenRoot.exists());

        IResource[] nonJavaResources = javaProject.getNonJavaResources();
        assertEquals(4, nonJavaResources.length);
        IFile projectFile = project.getFile(".project");
        assertTrue(Arrays.asList(nonJavaResources).contains(projectFile));
        IFile classpathFile = project.getFile(".classpath");
        assertTrue(Arrays.asList(nonJavaResources).contains(classpathFile));
        IFolder settingsFolder = project.getFolder(".settings");
        assertTrue(Arrays.asList(nonJavaResources).contains(settingsFolder));
        IFolder binFolder = project.getFolder("bin");
        assertTrue(Arrays.asList(nonJavaResources).contains(binFolder));

        // delete src-gen
        srcGenRoot.getResource().delete(true, null);

        roots = javaProject.getPackageFragmentRoots();
        assertEquals(1, roots.length);
        assertEquals(srcRoot, roots[0]);
        assertTrue(srcRoot.exists());
        assertFalse(srcGenRoot.exists());

        nonJavaResources = javaProject.getNonJavaResources();
        assertEquals(4, nonJavaResources.length);
        assertTrue(Arrays.asList(nonJavaResources).contains(projectFile));
        assertTrue(Arrays.asList(nonJavaResources).contains(classpathFile));
        assertTrue(Arrays.asList(nonJavaResources).contains(settingsFolder));
        assertTrue(Arrays.asList(nonJavaResources).contains(binFolder));

        // (re-)create src-gen
        ((IFolder)srcGenRoot.getResource()).create(true, true, null);

        roots = javaProject.getPackageFragmentRoots();
        assertEquals(2, roots.length);
        assertEquals(srcRoot, roots[0]);
        assertEquals(srcGenRoot, roots[1]);
        assertTrue(srcRoot.exists());
        assertTrue(srcGenRoot.exists());

        nonJavaResources = javaProject.getNonJavaResources();
        assertEquals(4, nonJavaResources.length);
        assertTrue(Arrays.asList(nonJavaResources).contains(projectFile));
        assertTrue(Arrays.asList(nonJavaResources).contains(classpathFile));
        assertTrue(Arrays.asList(nonJavaResources).contains(settingsFolder));
        assertTrue(Arrays.asList(nonJavaResources).contains(binFolder));

        // remove src-gen from classpath
        classpathFile.setContents(binFolder.getFile(
            "classpath01").getContents(), true, false, null);

        roots = javaProject.getPackageFragmentRoots();
        assertEquals(1, roots.length);
        assertEquals(srcRoot, roots[0]);
        assertTrue(srcRoot.exists());
        assertFalse(srcGenRoot.exists());

        nonJavaResources = javaProject.getNonJavaResources();
        assertEquals(5, nonJavaResources.length);
        assertTrue(Arrays.asList(nonJavaResources).contains(projectFile));
        assertTrue(Arrays.asList(nonJavaResources).contains(classpathFile));
        assertTrue(Arrays.asList(nonJavaResources).contains(settingsFolder));
        assertTrue(Arrays.asList(nonJavaResources).contains(binFolder));
        assertTrue(Arrays.asList(nonJavaResources).contains(
            srcGenRoot.getResource()));

        // put src-gen back to classpath, this time as the first entry
        classpathFile.setContents(binFolder.getFile(
            "classpath02").getContents(), true, false, null);

        roots = javaProject.getPackageFragmentRoots();
        assertEquals(2, roots.length);
        assertEquals(srcGenRoot, roots[0]);
        assertEquals(srcRoot, roots[1]);
        assertTrue(srcGenRoot.exists());
        assertTrue(srcRoot.exists());

        nonJavaResources = javaProject.getNonJavaResources();
        assertEquals(4, nonJavaResources.length);
        assertTrue(Arrays.asList(nonJavaResources).contains(projectFile));
        assertTrue(Arrays.asList(nonJavaResources).contains(classpathFile));
        assertTrue(Arrays.asList(nonJavaResources).contains(settingsFolder));
        assertTrue(Arrays.asList(nonJavaResources).contains(binFolder));

        // delete src-gen (again)
        srcGenRoot.getResource().delete(true, null);

        roots = javaProject.getPackageFragmentRoots();
        assertEquals(1, roots.length);
        assertEquals(srcRoot, roots[0]);
        assertTrue(srcRoot.exists());
        assertFalse(srcGenRoot.exists());

        nonJavaResources = javaProject.getNonJavaResources();
        assertEquals(4, nonJavaResources.length);
        assertTrue(Arrays.asList(nonJavaResources).contains(projectFile));
        assertTrue(Arrays.asList(nonJavaResources).contains(classpathFile));
        assertTrue(Arrays.asList(nonJavaResources).contains(settingsFolder));
        assertTrue(Arrays.asList(nonJavaResources).contains(binFolder));

        // (re-)create src-gen and check it is still the first entry
        ((IFolder)srcGenRoot.getResource()).create(true, true, null);

        roots = javaProject.getPackageFragmentRoots();
        assertEquals(2, roots.length);
        assertEquals(srcGenRoot, roots[0]);
        assertEquals(srcRoot, roots[1]);
        assertTrue(srcGenRoot.exists());
        assertTrue(srcRoot.exists());

        nonJavaResources = javaProject.getNonJavaResources();
        assertEquals(4, nonJavaResources.length);
        assertTrue(Arrays.asList(nonJavaResources).contains(projectFile));
        assertTrue(Arrays.asList(nonJavaResources).contains(classpathFile));
        assertTrue(Arrays.asList(nonJavaResources).contains(settingsFolder));
        assertTrue(Arrays.asList(nonJavaResources).contains(binFolder));

        // move src-gen
        IFolder otherFolder = project.getFolder("src-gen2");
        srcGenRoot.getResource().move(otherFolder.getFullPath(), true, null);

        roots = javaProject.getPackageFragmentRoots();
        assertEquals(1, roots.length);
        assertEquals(srcRoot, roots[0]);
        assertTrue(srcRoot.exists());
        assertFalse(srcGenRoot.exists());

        nonJavaResources = javaProject.getNonJavaResources();
        assertEquals(5, nonJavaResources.length);
        assertTrue(Arrays.asList(nonJavaResources).contains(projectFile));
        assertTrue(Arrays.asList(nonJavaResources).contains(classpathFile));
        assertTrue(Arrays.asList(nonJavaResources).contains(settingsFolder));
        assertTrue(Arrays.asList(nonJavaResources).contains(binFolder));
        assertTrue(Arrays.asList(nonJavaResources).contains(otherFolder));
    }
}