org.gitective.tests.CommitFinderTest.java Source code

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Here is the source code for org.gitective.tests.CommitFinderTest.java

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/*
 * Copyright (c) 2011 Kevin Sawicki <kevinsawicki@gmail.com>
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to
 * deal in the Software without restriction, including without limitation the
 * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
 * sell copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
 * IN THE SOFTWARE.
 */
package org.gitective.tests;

import java.io.IOException;

import org.eclipse.jgit.errors.StopWalkException;
import org.eclipse.jgit.lib.Constants;
import org.eclipse.jgit.lib.ObjectId;
import org.eclipse.jgit.revwalk.RevCommit;
import org.eclipse.jgit.revwalk.RevWalk;
import org.eclipse.jgit.revwalk.filter.RevFilter;
import org.gitective.core.CommitFinder;
import org.gitective.core.GitException;
import org.gitective.core.filter.commit.AndCommitFilter;
import org.gitective.core.filter.commit.CommitCountFilter;
import org.gitective.core.filter.commit.CommitFilter;
import org.gitective.core.filter.commit.CommitListFilter;
import org.junit.Test;

/**
 * Unit tests of {@link CommitFinder}
 */
public class CommitFinderTest extends GitTestCase {

    /**
     * Test filter throwing an {@link IOException} when visiting a commit
     *
     * @throws Exception
     */
    @Test
    public void matcherThrowsIOException() throws Exception {
        add("test.txt", "content");
        CommitFinder finder = new CommitFinder(testRepo);
        final IOException exception = new IOException("message");
        finder.setFilter(new CommitFilter() {

            public boolean include(RevWalk walker, RevCommit cmit) throws IOException {
                throw exception;
            }

            public RevFilter clone() {
                return this;
            }
        });
        try {
            finder.find();
            fail("Exception not thrown by matcher filter");
        } catch (GitException e) {
            assertNotNull(e);
            assertEquals(exception, e.getCause());
        }
    }

    /**
     * Test filter throwing a {@link StopWalkException} and it being suppressed
     * and the walk stopping
     *
     * @throws Exception
     */
    @Test
    public void suppressedStopWalkExceptionThrownByMatcher() throws Exception {
        add("test.txt", "content");
        CommitFinder finder = new CommitFinder(testRepo);
        CommitCountFilter count = new CommitCountFilter();
        finder.setFilter(new AndCommitFilter(new CommitFilter() {

            public boolean include(RevWalk walker, RevCommit cmit) throws IOException {
                throw StopWalkException.INSTANCE;
            }

            public RevFilter clone() {
                return this;
            }
        }, count));
        finder.find();
        assertEquals(0, count.getCount());
    }

    /**
     * Test searching commit range that has none in-between start and end
     *
     * @throws Exception
     */
    @Test
    public void noCommitsBetween() throws Exception {
        add("test.txt", "content");
        CommitFinder finder = new CommitFinder(testRepo);
        CommitCountFilter count = new CommitCountFilter();
        finder.setFilter(count);
        finder.findBetween(Constants.HEAD, Constants.HEAD);
        assertEquals(0, count.getCount());
    }

    /**
     * Test searching commit range that has none in-between start and end
     *
     * @throws Exception
     */
    @Test
    public void noCommitsBetweenHeadAndHead() throws Exception {
        add("test.txt", "content");
        CommitFinder finder = new CommitFinder(testRepo);
        CommitCountFilter count = new CommitCountFilter();
        finder.setFilter(count);
        finder.findBetween(Constants.HEAD, Constants.HEAD);
        assertEquals(0, count.getCount());
    }

    /**
     * Test searching commit range that has none in-between start and end
     *
     * @throws Exception
     */
    @Test
    public void noCommitsBetweenCommitIdAndHead() throws Exception {
        add("test.txt", "content");
        RevCommit commit = add("test.txt", "content2");
        CommitFinder finder = new CommitFinder(testRepo);
        CommitListFilter commits = new CommitListFilter();
        finder.setFilter(commits);
        finder.findBetween(commit, Constants.HEAD + "~1");
        assertEquals(1, commits.getCommits().size());
        assertEquals(commit, commits.getCommits().get(0));
    }

    /**
     * Find commits between with null starting id
     */
    @Test(expected = IllegalArgumentException.class)
    public void findNullStartId() {
        CommitFinder finder = new CommitFinder(testRepo);
        finder.findBetween((ObjectId) null, ObjectId.zeroId());
    }

    /**
     * Find until with given end revision
     *
     * @throws Exception
     */
    @Test
    public void findUntilRevision() throws Exception {
        add("test.txt", "content");
        add("test.txt", "content2");
        RevCommit commit3 = add("test.txt", "content3");

        CommitListFilter commits = new CommitListFilter();
        new CommitFinder(testRepo).setFilter(commits).findUntil("HEAD~1");
        assertEquals(1, commits.getCommits().size());
        assertTrue(commits.getCommits().contains(commit3));
    }

    /**
     * Find until with given end commit id
     *
     * @throws Exception
     */
    @Test
    public void findUntilCommitId() throws Exception {
        add("test.txt", "content");
        RevCommit commit2 = add("test.txt", "content2");
        RevCommit commit3 = add("test.txt", "content3");
        RevCommit commit4 = add("test.txt", "content4");

        CommitListFilter commits = new CommitListFilter();
        new CommitFinder(testRepo).setFilter(commits).findUntil(commit2);
        assertEquals(2, commits.getCommits().size());
        assertTrue(commits.getCommits().contains(commit4));
        assertTrue(commits.getCommits().contains(commit3));
    }
}