ClasspathMacroTest.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.ide.ext.java.client.command.valueproviders;

import com.google.common.base.Optional;

import org.eclipse.che.api.promises.client.Function;
import org.eclipse.che.api.promises.client.Promise;
import org.eclipse.che.api.promises.client.PromiseProvider;
import org.eclipse.che.ide.api.app.AppContext;
import org.eclipse.che.ide.api.resources.Project;
import org.eclipse.che.ide.api.resources.Resource;
import org.eclipse.che.ide.ext.java.client.command.ClasspathContainer;
import org.eclipse.che.ide.ext.java.client.project.classpath.ClasspathResolver;
import org.eclipse.che.ide.ext.java.shared.Constants;
import org.eclipse.che.ide.ext.java.shared.dto.classpath.ClasspathEntryDto;
import org.eclipse.che.ide.resource.Path;
import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.mockito.ArgumentCaptor;
import org.mockito.Captor;
import org.mockito.InjectMocks;
import org.mockito.Mock;
import org.mockito.runners.MockitoJUnitRunner;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.Set;

import static java.util.Arrays.asList;
import static java.util.Collections.singletonList;
import static org.eclipse.che.ide.ext.java.shared.ClasspathEntryKind.LIBRARY;
import static org.junit.Assert.assertEquals;
import static org.mockito.Matchers.anyString;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.never;
import static org.mockito.Mockito.verify;
import static org.mockito.Mockito.when;

/**
 * @author Valeriy Svydenko
 */
@RunWith(MockitoJUnitRunner.class)
public class ClasspathMacroTest {
    @Mock
    private ClasspathContainer classpathContainer;
    @Mock
    private ClasspathResolver  classpathResolver;
    @Mock
    private AppContext         appContext;
    @Mock
    private PromiseProvider    promises;

    @Mock
    private Resource                         resource;
    @Mock
    private Optional<Project>                projectOptional;
    @Mock
    private Project                          project;
    @Mock
    private Promise<List<ClasspathEntryDto>> classpathEntriesPromise;

    @Captor
    private ArgumentCaptor<Function<List<ClasspathEntryDto>, String>> classpathEntriesCapture;

    @InjectMocks
    private ClasspathMacro classpathMacro;

    private Resource[] resources = new Resource[1];

    @Before
    public void setUp() throws Exception {
        resources[0] = resource;

        when(appContext.getResources()).thenReturn(resources);
        when(resource.getRelatedProject()).thenReturn(projectOptional);
        when(projectOptional.get()).thenReturn(project);

        Map<String, List<String>> attributes = new HashMap<>();
        attributes.put(Constants.LANGUAGE, singletonList("java"));

        when(project.getAttributes()).thenReturn(attributes);

        Path projectPath = Path.valueOf("/name");
        when(project.getLocation()).thenReturn(projectPath);
    }

    @Test
    public void classpathShouldBeBuiltWith2Libraries() throws Exception {
        String lib1 = "lib1.jar";
        String lib2 = "lib2.jar";

        List<ClasspathEntryDto> entries = new ArrayList<>();

        Set<String> libs = new HashSet<>();
        libs.add(lib1);
        libs.add(lib2);

        when(classpathContainer.getClasspathEntries(anyString())).thenReturn(classpathEntriesPromise);
        when(classpathResolver.getLibs()).thenReturn(libs);

        classpathMacro.expand();

        verify(classpathEntriesPromise).then(classpathEntriesCapture.capture());
        String classpath = classpathEntriesCapture.getValue().apply(entries);

        verify(classpathResolver).resolveClasspathEntries(entries);
        assertEquals("lib2.jar:lib1.jar:", classpath);
    }

    @Test
    public void classpathShouldBeBuiltWith2ExternalLibrariesAnd2LibrariesFromContainer() throws Exception {
        String lib1 = "lib1.jar";
        String lib2 = "lib2.jar";

        List<ClasspathEntryDto> entries = new ArrayList<>();

        Set<String> libs = new HashSet<>();
        libs.add(lib1);
        libs.add(lib2);

        ClasspathEntryDto container = mock(ClasspathEntryDto.class);
        ClasspathEntryDto cLib1 = mock(ClasspathEntryDto.class);
        ClasspathEntryDto cLib2 = mock(ClasspathEntryDto.class);
        when(container.getPath()).thenReturn("containerPath");
        when(container.getExpandedEntries()).thenReturn(asList(cLib1, cLib2));
        when(cLib1.getPath()).thenReturn("cLib1.jar");
        when(cLib1.getEntryKind()).thenReturn(LIBRARY);
        when(cLib2.getPath()).thenReturn("cLib2.jar");
        when(cLib2.getEntryKind()).thenReturn(LIBRARY);

        Set<ClasspathEntryDto> containers = new HashSet<>();
        containers.add(container);

        when(classpathContainer.getClasspathEntries(anyString())).thenReturn(classpathEntriesPromise);
        when(classpathResolver.getLibs()).thenReturn(libs);
        when(classpathResolver.getContainers()).thenReturn(containers);

        classpathMacro.expand();

        verify(classpathEntriesPromise).then(classpathEntriesCapture.capture());
        String classpath = classpathEntriesCapture.getValue().apply(entries);

        verify(classpathResolver).resolveClasspathEntries(entries);
        assertEquals("lib2.jar:lib1.jar:cLib1.jar:cLib2.jar:", classpath);
    }

    @Test
    public void defaultValueOfClasspathShouldBeBuilt() throws Exception {
        List<ClasspathEntryDto> entries = new ArrayList<>();
        Set<String> libs = new HashSet<>();
        Path projectsRoot = Path.valueOf("/projects");

        when(appContext.getProjectsRoot()).thenReturn(projectsRoot);
        when(classpathContainer.getClasspathEntries(anyString())).thenReturn(classpathEntriesPromise);
        when(classpathResolver.getLibs()).thenReturn(libs);

        classpathMacro.expand();

        verify(classpathEntriesPromise).then(classpathEntriesCapture.capture());
        String classpath = classpathEntriesCapture.getValue().apply(entries);

        verify(classpathResolver).resolveClasspathEntries(entries);
        assertEquals("/projects/name:", classpath);
    }

    @Test
    public void returnEmptyClasspathIfProjectDoesNotSupportJava() throws Exception {
        Map<String, List<String>> attributes = new HashMap<>();
        attributes.put(Constants.LANGUAGE, singletonList("c"));

        when(project.getAttributes()).thenReturn(attributes);

        verify(classpathContainer, never()).getClasspathEntries(anyString());
    }

    @Test
    public void keyOfTheClasspathShouldBeReturned() throws Exception {
        assertEquals("${project.java.classpath}", classpathMacro.getName());
    }
}