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package org.eclipse.jgit.lib;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertNull;
import static org.junit.Assert.fail;
import org.eclipse.jgit.api.Git;
import org.eclipse.jgit.errors.RevisionSyntaxException;
import org.eclipse.jgit.junit.RepositoryTestCase;
import org.eclipse.jgit.revwalk.RevCommit;
import org.junit.Test;
/**
* Unit tests for resolving reflog-based revisions
*/
public class ReflogResolveTest extends RepositoryTestCase {
@Test
public void resolveMasterCommits() throws Exception {
try (Git git = new Git(db)) {
writeTrashFile("file.txt", "content");
git.add().addFilepattern("file.txt").call();
RevCommit c1 = git.commit().setMessage("create file").call();
writeTrashFile("file.txt", "content2");
git.add().addFilepattern("file.txt").call();
RevCommit c2 = git.commit().setMessage("edit file").call();
assertEquals(c2, db.resolve("master@{0}"));
assertEquals(c1, db.resolve("master@{1}"));
}
}
@Test
public void resolveUnnamedCurrentBranchCommits() throws Exception {
try (Git git = new Git(db)) {
writeTrashFile("file.txt", "content");
git.add().addFilepattern("file.txt").call();
RevCommit c1 = git.commit().setMessage("create file").call();
writeTrashFile("file.txt", "content2");
git.add().addFilepattern("file.txt").call();
RevCommit c2 = git.commit().setMessage("edit file").call();
assertEquals(c2, db.resolve("master@{0}"));
assertEquals(c1, db.resolve("master@{1}"));
git.checkout().setCreateBranch(true).setName("newbranch")
.setStartPoint(c1).call();
// same as current branch, e.g. master
assertEquals(c1, db.resolve("@{0}"));
try {
assertEquals(c1, db.resolve("@{1}"));
fail(); // Looking at wrong ref, e.g HEAD
} catch (RevisionSyntaxException e) {
assertNotNull(e);
}
// detached head, read HEAD reflog
git.checkout().setName(c2.getName()).call();
assertEquals(c2, db.resolve("@{0}"));
assertEquals(c1, db.resolve("@{1}"));
assertEquals(c2, db.resolve("@{2}"));
}
}
@Test
public void resolveReflogParent() throws Exception {
try (Git git = new Git(db)) {
writeTrashFile("file.txt", "content");
git.add().addFilepattern("file.txt").call();
RevCommit c1 = git.commit().setMessage("create file").call();
writeTrashFile("file.txt", "content2");
git.add().addFilepattern("file.txt").call();
git.commit().setMessage("edit file").call();
assertEquals(c1, db.resolve("master@{0}~1"));
}
}
@Test
public void resolveNonExistingBranch() throws Exception {
try (Git git = new Git(db)) {
writeTrashFile("file.txt", "content");
git.add().addFilepattern("file.txt").call();
git.commit().setMessage("create file").call();
assertNull(db.resolve("notabranch@{7}"));
}
}
@Test
public void resolvePreviousBranch() throws Exception {
try (Git git = new Git(db)) {
writeTrashFile("file.txt", "content");
git.add().addFilepattern("file.txt").call();
RevCommit c1 = git.commit().setMessage("create file").call();
writeTrashFile("file.txt", "content2");
git.add().addFilepattern("file.txt").call();
RevCommit c2 = git.commit().setMessage("edit file").call();
git.checkout().setCreateBranch(true).setName("newbranch")
.setStartPoint(c1).call();
git.checkout().setName(c1.getName()).call();
git.checkout().setName("master").call();
assertEquals(c1.getName(), db.simplify("@{-1}"));
assertEquals("newbranch", db.simplify("@{-2}"));
assertEquals("master", db.simplify("@{-3}"));
// chained expression
try {
// Cannot refer to reflog of detached head
db.resolve("@{-1}@{0}");
fail();
} catch (RevisionSyntaxException e) {
// good
}
assertEquals(c1.getName(), db.resolve("@{-2}@{0}").getName());
assertEquals(c2.getName(), db.resolve("@{-3}@{0}").getName());
}
}
@Test
public void resolveDate() throws Exception {
try (Git git = new Git(db)) {
writeTrashFile("file.txt", "content");
git.add().addFilepattern("file.txt").call();
git.commit().setMessage("create file").call();
try {
db.resolve("master@{yesterday}");
fail("Exception not thrown");
} catch (RevisionSyntaxException e) {
assertNotNull(e);
}
}
}
}