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-rw-r--r--plumbing/object/change_adaptor_test.go412
1 files changed, 412 insertions, 0 deletions
diff --git a/plumbing/object/change_adaptor_test.go b/plumbing/object/change_adaptor_test.go
new file mode 100644
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+++ b/plumbing/object/change_adaptor_test.go
@@ -0,0 +1,412 @@
+package object
+
+import (
+ "os"
+ "sort"
+
+ "srcd.works/go-git.v4/plumbing"
+ "srcd.works/go-git.v4/plumbing/storer"
+ "srcd.works/go-git.v4/storage/filesystem"
+ "srcd.works/go-git.v4/utils/merkletrie"
+ "srcd.works/go-git.v4/utils/merkletrie/noder"
+
+ "github.com/src-d/go-git-fixtures"
+ . "gopkg.in/check.v1"
+)
+
+type ChangeAdaptorSuite struct {
+ fixtures.Suite
+ Storer storer.EncodedObjectStorer
+ Fixture *fixtures.Fixture
+}
+
+func (s *ChangeAdaptorSuite) SetUpSuite(c *C) {
+ s.Suite.SetUpSuite(c)
+ s.Fixture = fixtures.Basic().One()
+ sto, err := filesystem.NewStorage(s.Fixture.DotGit())
+ c.Assert(err, IsNil)
+ s.Storer = sto
+}
+
+func (s *ChangeAdaptorSuite) tree(c *C, h plumbing.Hash) *Tree {
+ t, err := GetTree(s.Storer, h)
+ c.Assert(err, IsNil)
+ return t
+}
+
+var _ = Suite(&ChangeAdaptorSuite{})
+
+// utility function to build Noders from a tree and an tree entry.
+func newNoder(t *Tree, e TreeEntry) noder.Noder {
+ return &treeNoder{
+ parent: t,
+ name: e.Name,
+ mode: e.Mode,
+ hash: e.Hash,
+ }
+}
+
+// utility function to build Paths
+func newPath(nn ...noder.Noder) noder.Path { return noder.Path(nn) }
+
+func (s *ChangeAdaptorSuite) TestTreeNoderHashHasMode(c *C) {
+ hash := plumbing.NewHash("aaaa")
+ mode := FileMode
+
+ treeNoder := &treeNoder{
+ hash: hash,
+ mode: mode,
+ }
+
+ expected := []byte{
+ 0xaa, 0xaa, 0x00, 0x00, // original hash is aaaa and 16 zeros
+ 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00,
+ 0xa4, 0x81, 0x00, 0x00, // object.FileMode in little endian
+ }
+
+ c.Assert(treeNoder.Hash(), DeepEquals, expected)
+}
+
+func (s *ChangeAdaptorSuite) TestNewChangeInsert(c *C) {
+ tree := &Tree{}
+ entry := TreeEntry{
+ Name: "name",
+ Mode: os.FileMode(42),
+ Hash: plumbing.NewHash("aaaaa"),
+ }
+ path := newPath(newNoder(tree, entry))
+
+ expectedTo, err := newChangeEntry(path)
+ c.Assert(err, IsNil)
+
+ src := merkletrie.Change{
+ From: nil,
+ To: path,
+ }
+
+ obtained, err := newChange(src)
+ c.Assert(err, IsNil)
+ action, err := obtained.Action()
+ c.Assert(err, IsNil)
+ c.Assert(action, Equals, merkletrie.Insert)
+ c.Assert(obtained.From, Equals, ChangeEntry{})
+ c.Assert(obtained.To, Equals, expectedTo)
+}
+
+func (s *ChangeAdaptorSuite) TestNewChangeDelete(c *C) {
+ tree := &Tree{}
+ entry := TreeEntry{
+ Name: "name",
+ Mode: os.FileMode(42),
+ Hash: plumbing.NewHash("aaaaa"),
+ }
+ path := newPath(newNoder(tree, entry))
+
+ expectedFrom, err := newChangeEntry(path)
+ c.Assert(err, IsNil)
+
+ src := merkletrie.Change{
+ From: path,
+ To: nil,
+ }
+
+ obtained, err := newChange(src)
+ c.Assert(err, IsNil)
+ action, err := obtained.Action()
+ c.Assert(err, IsNil)
+ c.Assert(action, Equals, merkletrie.Delete)
+ c.Assert(obtained.From, Equals, expectedFrom)
+ c.Assert(obtained.To, Equals, ChangeEntry{})
+}
+
+func (s *ChangeAdaptorSuite) TestNewChangeModify(c *C) {
+ treeA := &Tree{}
+ entryA := TreeEntry{
+ Name: "name",
+ Mode: os.FileMode(42),
+ Hash: plumbing.NewHash("aaaaa"),
+ }
+ pathA := newPath(newNoder(treeA, entryA))
+ expectedFrom, err := newChangeEntry(pathA)
+ c.Assert(err, IsNil)
+
+ treeB := &Tree{}
+ entryB := TreeEntry{
+ Name: "name",
+ Mode: os.FileMode(42),
+ Hash: plumbing.NewHash("bbbb"),
+ }
+ pathB := newPath(newNoder(treeB, entryB))
+ expectedTo, err := newChangeEntry(pathB)
+ c.Assert(err, IsNil)
+
+ src := merkletrie.Change{
+ From: pathA,
+ To: pathB,
+ }
+
+ obtained, err := newChange(src)
+ c.Assert(err, IsNil)
+ action, err := obtained.Action()
+ c.Assert(err, IsNil)
+ c.Assert(action, Equals, merkletrie.Modify)
+ c.Assert(obtained.From, Equals, expectedFrom)
+ c.Assert(obtained.To, Equals, expectedTo)
+}
+
+func (s *ChangeAdaptorSuite) TestEmptyChangeFails(c *C) {
+ change := &Change{
+ From: empty,
+ To: empty,
+ }
+ _, err := change.Action()
+ c.Assert(err, ErrorMatches, "malformed change.*")
+
+ _, _, err = change.Files()
+ c.Assert(err, ErrorMatches, "malformed change.*")
+
+ str := change.String()
+ c.Assert(str, Equals, "malformed change")
+}
+
+type noderMock struct{ noder.Noder }
+
+func (s *ChangeAdaptorSuite) TestNewChangeFailsWithChangesFromOtherNoders(c *C) {
+ src := merkletrie.Change{
+ From: newPath(noderMock{}),
+ To: nil,
+ }
+ _, err := newChange(src)
+ c.Assert(err, Not(IsNil))
+
+ src = merkletrie.Change{
+ From: nil,
+ To: newPath(noderMock{}),
+ }
+ _, err = newChange(src)
+ c.Assert(err, Not(IsNil))
+}
+
+func (s *ChangeAdaptorSuite) TestChangeStringFrom(c *C) {
+ expected := "<Action: Delete, Path: foo>"
+ change := Change{}
+ change.From.Name = "foo"
+
+ obtained := change.String()
+ c.Assert(obtained, Equals, expected)
+}
+
+func (s *ChangeAdaptorSuite) TestChangeStringTo(c *C) {
+ expected := "<Action: Insert, Path: foo>"
+ change := Change{}
+ change.To.Name = "foo"
+
+ obtained := change.String()
+ c.Assert(obtained, Equals, expected)
+}
+
+func (s *ChangeAdaptorSuite) TestChangeFilesInsert(c *C) {
+ tree := s.tree(c, plumbing.NewHash("a8d315b2b1c615d43042c3a62402b8a54288cf5c"))
+
+ change := Change{}
+ change.To.Name = "json/long.json"
+ change.To.Tree = tree
+ change.To.TreeEntry.Hash = plumbing.NewHash("49c6bb89b17060d7b4deacb7b338fcc6ea2352a9")
+
+ from, to, err := change.Files()
+ c.Assert(err, IsNil)
+ c.Assert(from, IsNil)
+ c.Assert(to.ID(), Equals, change.To.TreeEntry.Hash)
+}
+
+func (s *ChangeAdaptorSuite) TestChangeFilesInsertNotFound(c *C) {
+ tree := s.tree(c, plumbing.NewHash("a8d315b2b1c615d43042c3a62402b8a54288cf5c"))
+
+ change := Change{}
+ change.To.Name = "json/long.json"
+ change.To.Tree = tree
+ // there is no object for this hash
+ change.To.TreeEntry.Hash = plumbing.NewHash("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa")
+
+ _, _, err := change.Files()
+ c.Assert(err, Not(IsNil))
+}
+
+func (s *ChangeAdaptorSuite) TestChangeFilesDelete(c *C) {
+ tree := s.tree(c, plumbing.NewHash("a8d315b2b1c615d43042c3a62402b8a54288cf5c"))
+
+ change := Change{}
+ change.From.Name = "json/long.json"
+ change.From.Tree = tree
+ change.From.TreeEntry.Hash = plumbing.NewHash("49c6bb89b17060d7b4deacb7b338fcc6ea2352a9")
+
+ from, to, err := change.Files()
+ c.Assert(err, IsNil)
+ c.Assert(to, IsNil)
+ c.Assert(from.ID(), Equals, change.From.TreeEntry.Hash)
+}
+
+func (s *ChangeAdaptorSuite) TestChangeFilesDeleteNotFound(c *C) {
+ tree := s.tree(c, plumbing.NewHash("a8d315b2b1c615d43042c3a62402b8a54288cf5c"))
+
+ change := Change{}
+ change.From.Name = "json/long.json"
+ change.From.Tree = tree
+ // there is no object for this hash
+ change.From.TreeEntry.Hash = plumbing.NewHash("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa")
+
+ _, _, err := change.Files()
+ c.Assert(err, Not(IsNil))
+}
+
+func (s *ChangeAdaptorSuite) TestChangeFilesModify(c *C) {
+ tree := s.tree(c, plumbing.NewHash("a8d315b2b1c615d43042c3a62402b8a54288cf5c"))
+
+ change := Change{}
+ change.To.Name = "json/long.json"
+ change.To.Tree = tree
+ change.To.TreeEntry.Hash = plumbing.NewHash("49c6bb89b17060d7b4deacb7b338fcc6ea2352a9")
+ change.From.Name = "json/long.json"
+ change.From.Tree = tree
+ change.From.TreeEntry.Hash = plumbing.NewHash("9a48f23120e880dfbe41f7c9b7b708e9ee62a492")
+
+ from, to, err := change.Files()
+ c.Assert(err, IsNil)
+ c.Assert(to.ID(), Equals, change.To.TreeEntry.Hash)
+ c.Assert(from.ID(), Equals, change.From.TreeEntry.Hash)
+}
+
+func (s *ChangeAdaptorSuite) TestChangeEntryFailsWithOtherNoders(c *C) {
+ path := noder.Path{noderMock{}}
+ _, err := newChangeEntry(path)
+ c.Assert(err, Not(IsNil))
+}
+
+func (s *ChangeAdaptorSuite) TestChangeEntryFromNilIsZero(c *C) {
+ obtained, err := newChangeEntry(nil)
+ c.Assert(err, IsNil)
+ c.Assert(obtained, Equals, ChangeEntry{})
+}
+
+func (s *ChangeAdaptorSuite) TestChangeEntryFromSortPath(c *C) {
+ tree := &Tree{}
+ entry := TreeEntry{
+ Name: "name",
+ Mode: os.FileMode(42),
+ Hash: plumbing.NewHash("aaaaa"),
+ }
+ path := newPath(newNoder(tree, entry))
+
+ obtained, err := newChangeEntry(path)
+ c.Assert(err, IsNil)
+
+ c.Assert(obtained.Name, Equals, entry.Name)
+ c.Assert(obtained.Tree, Equals, tree)
+ c.Assert(obtained.TreeEntry, DeepEquals, entry)
+}
+
+func (s *ChangeAdaptorSuite) TestChangeEntryFromLongPath(c *C) {
+ treeA := &Tree{}
+ entryA := TreeEntry{
+ Name: "nameA",
+ Mode: os.FileMode(42),
+ Hash: plumbing.NewHash("aaaa"),
+ }
+
+ treeB := &Tree{}
+ entryB := TreeEntry{
+ Name: "nameB",
+ Mode: os.FileMode(24),
+ Hash: plumbing.NewHash("bbbb"),
+ }
+
+ path := newPath(
+ newNoder(treeA, entryA),
+ newNoder(treeB, entryB),
+ )
+
+ obtained, err := newChangeEntry(path)
+ c.Assert(err, IsNil)
+
+ c.Assert(obtained.Name, Equals, entryA.Name+"/"+entryB.Name)
+ c.Assert(obtained.Tree, Equals, treeB)
+ c.Assert(obtained.TreeEntry, Equals, entryB)
+}
+
+func (s *ChangeAdaptorSuite) TestNewChangesEmpty(c *C) {
+ expected := "[]"
+ changes, err := newChanges(nil)
+ c.Assert(err, IsNil)
+ obtained := changes.String()
+ c.Assert(obtained, Equals, expected)
+
+ expected = "[]"
+ changes, err = newChanges(merkletrie.Changes{})
+ c.Assert(err, IsNil)
+ obtained = changes.String()
+ c.Assert(obtained, Equals, expected)
+}
+
+func (s *ChangeAdaptorSuite) TestNewChanges(c *C) {
+ treeA := &Tree{}
+ entryA := TreeEntry{Name: "nameA"}
+ pathA := newPath(newNoder(treeA, entryA))
+ changeA := merkletrie.Change{
+ From: nil,
+ To: pathA,
+ }
+
+ treeB := &Tree{}
+ entryB := TreeEntry{Name: "nameB"}
+ pathB := newPath(newNoder(treeB, entryB))
+ changeB := merkletrie.Change{
+ From: pathB,
+ To: nil,
+ }
+ src := merkletrie.Changes{changeA, changeB}
+
+ changes, err := newChanges(src)
+ c.Assert(err, IsNil)
+ c.Assert(len(changes), Equals, 2)
+ action, err := changes[0].Action()
+ c.Assert(err, IsNil)
+ c.Assert(action, Equals, merkletrie.Insert)
+ c.Assert(changes[0].To.Name, Equals, "nameA")
+ action, err = changes[1].Action()
+ c.Assert(err, IsNil)
+ c.Assert(action, Equals, merkletrie.Delete)
+ c.Assert(changes[1].From.Name, Equals, "nameB")
+}
+
+func (s *ChangeAdaptorSuite) TestNewChangesFailsWithOtherNoders(c *C) {
+ change := merkletrie.Change{
+ From: nil,
+ To: newPath(noderMock{}),
+ }
+ src := merkletrie.Changes{change}
+
+ _, err := newChanges(src)
+ c.Assert(err, Not(IsNil))
+}
+
+func (s *ChangeAdaptorSuite) TestSortChanges(c *C) {
+ c1 := &Change{}
+ c1.To.Name = "1"
+
+ c2 := &Change{}
+ c2.From.Name = "2"
+ c2.To.Name = "2"
+
+ c3 := &Change{}
+ c3.From.Name = "3"
+
+ changes := Changes{c3, c1, c2}
+ sort.Sort(changes)
+
+ c.Assert(changes[0].String(), Equals, "<Action: Insert, Path: 1>")
+ c.Assert(changes[1].String(), Equals, "<Action: Modify, Path: 2>")
+ c.Assert(changes[2].String(), Equals, "<Action: Delete, Path: 3>")
+}
generated by cgit (git 2.34.1) at 2024-09-20 04:06:56 +0000