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| author | Andrew Thornton <art27@cantab.net> | 2023-09-30 11:41:23 +0100 |
|---|---|---|
| committer | Andrew Thornton <art27@cantab.net> | 2023-10-08 09:38:00 +0100 |
| commit | 946bb8183643bdda90810fc48e450a008894b244 (patch) | |
| tree | ee2718e1ac621c88716068842e4ae38ed69862e8 /plumbing/format/commitgraph/v2/commitgraph_test.go | |
| parent | 19fe126d8889134e6224717a756745eed9985e22 (diff) | |
| download | go-git-946bb8183643bdda90810fc48e450a008894b244.tar.gz | |
plumbing: commitgraph, fix types and handle commit-graph-chains
Unfortunately the original variant makes some incorrect typing
assumptions about commit-graphs which make handling graph chains
difficult to do correctly. This creates a new subpackage and deprecates
the old one. It then adds support commit graph chains.
Signed-off-by: Andrew Thornton <art27@cantab.net>
Diffstat (limited to 'plumbing/format/commitgraph/v2/commitgraph_test.go')
| -rw-r--r-- | plumbing/format/commitgraph/v2/commitgraph_test.go | 165 |
1 files changed, 165 insertions, 0 deletions
diff --git a/plumbing/format/commitgraph/v2/commitgraph_test.go b/plumbing/format/commitgraph/v2/commitgraph_test.go new file mode 100644 index 0000000..69fdcd9 --- /dev/null +++ b/plumbing/format/commitgraph/v2/commitgraph_test.go @@ -0,0 +1,165 @@ +package v2_test
+
+import (
+ "os"
+ "testing"
+
+ "github.com/go-git/go-billy/v5"
+ "github.com/go-git/go-billy/v5/util"
+ "github.com/go-git/go-git/v5/plumbing"
+ commitgraph "github.com/go-git/go-git/v5/plumbing/format/commitgraph/v2"
+
+ fixtures "github.com/go-git/go-git-fixtures/v4"
+ . "gopkg.in/check.v1"
+)
+
+func Test(t *testing.T) { TestingT(t) }
+
+type CommitgraphSuite struct {
+ fixtures.Suite
+}
+
+var _ = Suite(&CommitgraphSuite{})
+
+func testReadIndex(c *C, fs billy.Filesystem, path string) commitgraph.Index {
+ reader, err := fs.Open(path)
+ c.Assert(err, IsNil)
+ index, err := commitgraph.OpenFileIndex(reader)
+ c.Assert(err, IsNil)
+ c.Assert(index, NotNil)
+ return index
+}
+
+func testDecodeHelper(c *C, index commitgraph.Index) {
+ // Root commit
+ nodeIndex, err := index.GetIndexByHash(plumbing.NewHash("347c91919944a68e9413581a1bc15519550a3afe"))
+ c.Assert(err, IsNil)
+ commitData, err := index.GetCommitDataByIndex(nodeIndex)
+ c.Assert(err, IsNil)
+ c.Assert(len(commitData.ParentIndexes), Equals, 0)
+ c.Assert(len(commitData.ParentHashes), Equals, 0)
+
+ // Regular commit
+ nodeIndex, err = index.GetIndexByHash(plumbing.NewHash("e713b52d7e13807e87a002e812041f248db3f643"))
+ c.Assert(err, IsNil)
+ commitData, err = index.GetCommitDataByIndex(nodeIndex)
+ c.Assert(err, IsNil)
+ c.Assert(len(commitData.ParentIndexes), Equals, 1)
+ c.Assert(len(commitData.ParentHashes), Equals, 1)
+ c.Assert(commitData.ParentHashes[0].String(), Equals, "347c91919944a68e9413581a1bc15519550a3afe")
+
+ // Merge commit
+ nodeIndex, err = index.GetIndexByHash(plumbing.NewHash("b29328491a0682c259bcce28741eac71f3499f7d"))
+ c.Assert(err, IsNil)
+ commitData, err = index.GetCommitDataByIndex(nodeIndex)
+ c.Assert(err, IsNil)
+ c.Assert(len(commitData.ParentIndexes), Equals, 2)
+ c.Assert(len(commitData.ParentHashes), Equals, 2)
+ c.Assert(commitData.ParentHashes[0].String(), Equals, "e713b52d7e13807e87a002e812041f248db3f643")
+ c.Assert(commitData.ParentHashes[1].String(), Equals, "03d2c021ff68954cf3ef0a36825e194a4b98f981")
+
+ // Octopus merge commit
+ nodeIndex, err = index.GetIndexByHash(plumbing.NewHash("6f6c5d2be7852c782be1dd13e36496dd7ad39560"))
+ c.Assert(err, IsNil)
+ commitData, err = index.GetCommitDataByIndex(nodeIndex)
+ c.Assert(err, IsNil)
+ c.Assert(len(commitData.ParentIndexes), Equals, 3)
+ c.Assert(len(commitData.ParentHashes), Equals, 3)
+ c.Assert(commitData.ParentHashes[0].String(), Equals, "ce275064ad67d51e99f026084e20827901a8361c")
+ c.Assert(commitData.ParentHashes[1].String(), Equals, "bb13916df33ed23004c3ce9ed3b8487528e655c1")
+ c.Assert(commitData.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()
+ index := testReadIndex(c, dotgit, dotgit.Join("objects", "info", "commit-graph"))
+ defer index.Close()
+ testDecodeHelper(c, index)
+ })
+}
+
+func (s *CommitgraphSuite) TestDecodeChain(c *C) {
+ fixtures.ByTag("commit-graph").Test(c, func(f *fixtures.Fixture) {
+ dotgit := f.DotGit()
+ index, err := commitgraph.OpenChainOrFileIndex(dotgit)
+ c.Assert(err, IsNil)
+ defer index.Close()
+ testDecodeHelper(c, index)
+ })
+
+ fixtures.ByTag("commit-graph-chain").Test(c, func(f *fixtures.Fixture) {
+ dotgit := f.DotGit()
+ index, err := commitgraph.OpenChainOrFileIndex(dotgit)
+ c.Assert(err, IsNil)
+ defer index.Close()
+ testDecodeHelper(c, index)
+ })
+}
+
+func (s *CommitgraphSuite) TestReencode(c *C) {
+ fixtures.ByTag("commit-graph").Test(c, func(f *fixtures.Fixture) {
+ dotgit := f.DotGit()
+
+ reader, err := dotgit.Open(dotgit.Join("objects", "info", "commit-graph"))
+ c.Assert(err, IsNil)
+ defer reader.Close()
+ index, err := commitgraph.OpenFileIndex(reader)
+ c.Assert(err, IsNil)
+ defer index.Close()
+
+ writer, err := util.TempFile(dotgit, "", "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()
+
+ tmpIndex := testReadIndex(c, dotgit, tmpName)
+ defer tmpIndex.Close()
+ testDecodeHelper(c, tmpIndex)
+ })
+}
+
+func (s *CommitgraphSuite) TestReencodeInMemory(c *C) {
+ fixtures.ByTag("commit-graph").Test(c, func(f *fixtures.Fixture) {
+ dotgit := f.DotGit()
+
+ reader, err := dotgit.Open(dotgit.Join("objects", "info", "commit-graph"))
+ c.Assert(err, IsNil)
+ index, err := commitgraph.OpenFileIndex(reader)
+ c.Assert(err, IsNil)
+
+ memoryIndex := commitgraph.NewMemoryIndex()
+ defer memoryIndex.Close()
+ for i, hash := range index.Hashes() {
+ commitData, err := index.GetCommitDataByIndex(uint32(i))
+ c.Assert(err, IsNil)
+ memoryIndex.Add(hash, commitData)
+ }
+ index.Close()
+
+ writer, err := util.TempFile(dotgit, "", "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()
+
+ tmpIndex := testReadIndex(c, dotgit, tmpName)
+ defer tmpIndex.Close()
+ testDecodeHelper(c, tmpIndex)
+ })
+}
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