package commitgraph_test | |
import ( | |
"io/ioutil" | |
"os" | |
"path" | |
"testing" | |
"golang.org/x/exp/mmap" | |
. "gopkg.in/check.v1" | |
"gopkg.in/src-d/go-git-fixtures.v3" | |
"gopkg.in/src-d/go-git.v4/plumbing" | |
"gopkg.in/src-d/go-git.v4/plumbing/format/commitgraph" | |
) | |
func Test(t *testing.T) { TestingT(t) } | |
type CommitgraphSuite struct { | |
fixtures.Suite | |
} | |
var _ = Suite(&CommitgraphSuite{}) | |
func testDecodeHelper(c *C, path string) { | |
reader, err := mmap.Open(path) | |
c.Assert(err, IsNil) | |
defer reader.Close() | |
index, err := commitgraph.OpenFileIndex(reader) | |
c.Assert(err, IsNil) | |
// Root commit | |
nodeIndex, err := index.GetIndexByHash(plumbing.NewHash("347c91919944a68e9413581a1bc15519550a3afe")) | |
c.Assert(err, IsNil) | |
node, err := index.GetNodeByIndex(nodeIndex) | |
c.Assert(err, IsNil) | |
c.Assert(len(node.ParentIndexes), Equals, 0) | |
c.Assert(len(node.ParentHashes), Equals, 0) | |
// Regular commit | |
nodeIndex, err = index.GetIndexByHash(plumbing.NewHash("e713b52d7e13807e87a002e812041f248db3f643")) | |
c.Assert(err, IsNil) | |
node, err = index.GetNodeByIndex(nodeIndex) | |
c.Assert(err, IsNil) | |
c.Assert(len(node.ParentIndexes), Equals, 1) | |
c.Assert(len(node.ParentHashes), Equals, 1) | |
c.Assert(node.ParentHashes[0].String(), Equals, "347c91919944a68e9413581a1bc15519550a3afe") | |
// Merge commit | |
nodeIndex, err = index.GetIndexByHash(plumbing.NewHash("b29328491a0682c259bcce28741eac71f3499f7d")) | |
c.Assert(err, IsNil) | |
node, err = index.GetNodeByIndex(nodeIndex) | |
c.Assert(err, IsNil) | |
c.Assert(len(node.ParentIndexes), Equals, 2) | |
c.Assert(len(node.ParentHashes), Equals, 2) | |
c.Assert(node.ParentHashes[0].String(), Equals, "e713b52d7e13807e87a002e812041f248db3f643") | |
c.Assert(node.ParentHashes[1].String(), Equals, "03d2c021ff68954cf3ef0a36825e194a4b98f981") | |
// Octopus merge commit | |
nodeIndex, err = index.GetIndexByHash(plumbing.NewHash("6f6c5d2be7852c782be1dd13e36496dd7ad39560")) | |
c.Assert(err, IsNil) | |
node, err = index.GetNodeByIndex(nodeIndex) | |
c.Assert(err, IsNil) | |
c.Assert(len(node.ParentIndexes), Equals, 3) | |
c.Assert(len(node.ParentHashes), Equals, 3) | |
c.Assert(node.ParentHashes[0].String(), Equals, "ce275064ad67d51e99f026084e20827901a8361c") | |
c.Assert(node.ParentHashes[1].String(), Equals, "bb13916df33ed23004c3ce9ed3b8487528e655c1") | |
c.Assert(node.ParentHashes[2].String(), Equals, "a45273fe2d63300e1962a9e26a6b15c276cd7082") | |
// Check all hashes | |
hashes := index.Hashes() | |
c.Assert(len(hashes), Equals, 11) | |
c.Assert(hashes[0].String(), Equals, "03d2c021ff68954cf3ef0a36825e194a4b98f981") | |
c.Assert(hashes[10].String(), Equals, "e713b52d7e13807e87a002e812041f248db3f643") | |
} | |
func (s *CommitgraphSuite) TestDecode(c *C) { | |
fixtures.ByTag("commit-graph").Test(c, func(f *fixtures.Fixture) { | |
dotgit := f.DotGit() | |
testDecodeHelper(c, path.Join(dotgit.Root(), "objects", "info", "commit-graph")) | |
}) | |
} | |
func (s *CommitgraphSuite) TestReencode(c *C) { | |
fixtures.ByTag("commit-graph").Test(c, func(f *fixtures.Fixture) { | |
dotgit := f.DotGit() | |
reader, err := mmap.Open(path.Join(dotgit.Root(), "objects", "info", "commit-graph")) | |
c.Assert(err, IsNil) | |
defer reader.Close() | |
index, err := commitgraph.OpenFileIndex(reader) | |
c.Assert(err, IsNil) | |
writer, err := ioutil.TempFile(dotgit.Root(), "commit-graph") | |
c.Assert(err, IsNil) | |
tmpName := writer.Name() | |
defer os.Remove(tmpName) | |
encoder := commitgraph.NewEncoder(writer) | |
err = encoder.Encode(index) | |
c.Assert(err, IsNil) | |
writer.Close() | |
testDecodeHelper(c, tmpName) | |
}) | |
} | |
func (s *CommitgraphSuite) TestReencodeInMemory(c *C) { | |
fixtures.ByTag("commit-graph").Test(c, func(f *fixtures.Fixture) { | |
dotgit := f.DotGit() | |
reader, err := mmap.Open(path.Join(dotgit.Root(), "objects", "info", "commit-graph")) | |
c.Assert(err, IsNil) | |
index, err := commitgraph.OpenFileIndex(reader) | |
c.Assert(err, IsNil) | |
memoryIndex := commitgraph.NewMemoryIndex() | |
for i, hash := range index.Hashes() { | |
node, err := index.GetNodeByIndex(i) | |
c.Assert(err, IsNil) | |
memoryIndex.Add(hash, node) | |
} | |
reader.Close() | |
writer, err := ioutil.TempFile(dotgit.Root(), "commit-graph") | |
c.Assert(err, IsNil) | |
tmpName := writer.Name() | |
defer os.Remove(tmpName) | |
encoder := commitgraph.NewEncoder(writer) | |
err = encoder.Encode(memoryIndex) | |
c.Assert(err, IsNil) | |
writer.Close() | |
testDecodeHelper(c, tmpName) | |
}) | |
} |