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-rw-r--r--plumbing/object/change_test.go299
1 files changed, 299 insertions, 0 deletions
diff --git a/plumbing/object/change_test.go b/plumbing/object/change_test.go
new file mode 100644
index 0000000..b47e92a
--- /dev/null
+++ b/plumbing/object/change_test.go
@@ -0,0 +1,299 @@
+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"
+
+ fixtures "github.com/src-d/go-git-fixtures"
+ . "gopkg.in/check.v1"
+)
+
+type ChangeSuite struct {
+ fixtures.Suite
+ Storer storer.EncodedObjectStorer
+ Fixture *fixtures.Fixture
+}
+
+func (s *ChangeSuite) SetUpSuite(c *C) {
+ s.Suite.SetUpSuite(c)
+ s.Fixture = fixtures.ByURL("https://github.com/src-d/go-git.git").
+ ByTag(".git").One()
+ sto, err := filesystem.NewStorage(s.Fixture.DotGit())
+ c.Assert(err, IsNil)
+ s.Storer = sto
+}
+
+func (s *ChangeSuite) tree(c *C, h plumbing.Hash) *Tree {
+ t, err := GetTree(s.Storer, h)
+ c.Assert(err, IsNil)
+ return t
+}
+
+var _ = Suite(&ChangeSuite{})
+
+func (s *ChangeSuite) TestInsert(c *C) {
+ // Commit a5078b19f08f63e7948abd0a5e2fb7d319d3a565 of the go-git
+ // fixture inserted "examples/clone/main.go".
+ //
+ // On that commit, the "examples/clone" tree is
+ // 6efca3ff41cab651332f9ebc0c96bb26be809615
+ //
+ // and the "examples/colone/main.go" is
+ // f95dc8f7923add1a8b9f72ecb1e8db1402de601a
+
+ path := "examples/clone/main.go"
+ name := "main.go"
+ mode := os.FileMode(100644)
+ blob := plumbing.NewHash("f95dc8f7923add1a8b9f72ecb1e8db1402de601a")
+ tree := plumbing.NewHash("6efca3ff41cab651332f9ebc0c96bb26be809615")
+
+ change := &Change{
+ From: empty,
+ To: ChangeEntry{
+ Name: path,
+ Tree: s.tree(c, tree),
+ TreeEntry: TreeEntry{
+ Name: name,
+ Mode: mode,
+ Hash: blob,
+ },
+ },
+ }
+
+ action, err := change.Action()
+ c.Assert(err, IsNil)
+ c.Assert(action, Equals, merkletrie.Insert)
+
+ from, to, err := change.Files()
+ c.Assert(err, IsNil)
+ c.Assert(from, IsNil)
+ c.Assert(to.Name, Equals, name)
+ c.Assert(to.Blob.Hash, Equals, blob)
+
+ str := change.String()
+ c.Assert(str, Equals, "<Action: Insert, Path: examples/clone/main.go>")
+}
+
+func (s *ChangeSuite) TestDelete(c *C) {
+ // Commit f6011d65d57c2a866e231fc21a39cb618f86f9ea of the go-git
+ // fixture deleted "utils/difftree/difftree.go".
+ //
+ // The parent of that commit is
+ // 9b4a386db3d98a4362516a00ef3d04d4698c9bcd.
+ //
+ // On that parent commit, the "utils/difftree" tree is
+ // f3d11566401ce4b0808aab9dd6fad3d5abf1481a.
+ //
+ // and the "utils/difftree/difftree.go" is
+ // e2cb9a5719daf634d45a063112b4044ee81da13ea.
+
+ path := "utils/difftree/difftree.go"
+ name := "difftree.go"
+ mode := os.FileMode(100644)
+ blob := plumbing.NewHash("e2cb9a5719daf634d45a063112b4044ee81da13e")
+ tree := plumbing.NewHash("f3d11566401ce4b0808aab9dd6fad3d5abf1481a")
+
+ change := &Change{
+ From: ChangeEntry{
+ Name: path,
+ Tree: s.tree(c, tree),
+ TreeEntry: TreeEntry{
+ Name: name,
+ Mode: mode,
+ Hash: blob,
+ },
+ },
+ To: empty,
+ }
+
+ action, err := change.Action()
+ c.Assert(err, IsNil)
+ c.Assert(action, Equals, merkletrie.Delete)
+
+ from, to, err := change.Files()
+ c.Assert(err, IsNil)
+ c.Assert(to, IsNil)
+ c.Assert(from.Name, Equals, name)
+ c.Assert(from.Blob.Hash, Equals, blob)
+
+ str := change.String()
+ c.Assert(str, Equals, "<Action: Delete, Path: utils/difftree/difftree.go>")
+}
+
+func (s *ChangeSuite) TestModify(c *C) {
+ // Commit 7beaad711378a4daafccc2c04bc46d36df2a0fd1 of the go-git
+ // fixture modified "examples/latest/latest.go".
+ // the "examples/latest" tree is
+ // b1f01b730b855c82431918cb338ad47ed558999b.
+ // and "examples/latest/latest.go" is blob
+ // 05f583ace3a9a078d8150905a53a4d82567f125f.
+ //
+ // The parent of that commit is
+ // 337148ef6d751477796922ac127b416b8478fcc4.
+ // the "examples/latest" tree is
+ // 8b0af31d2544acb5c4f3816a602f11418cbd126e.
+ // and "examples/latest/latest.go" is blob
+ // de927fad935d172929aacf20e71f3bf0b91dd6f9.
+
+ path := "utils/difftree/difftree.go"
+ name := "difftree.go"
+ mode := os.FileMode(100644)
+ fromBlob := plumbing.NewHash("05f583ace3a9a078d8150905a53a4d82567f125f")
+ fromTree := plumbing.NewHash("b1f01b730b855c82431918cb338ad47ed558999b")
+ toBlob := plumbing.NewHash("de927fad935d172929aacf20e71f3bf0b91dd6f9")
+ toTree := plumbing.NewHash("8b0af31d2544acb5c4f3816a602f11418cbd126e")
+
+ change := &Change{
+ From: ChangeEntry{
+ Name: path,
+ Tree: s.tree(c, fromTree),
+ TreeEntry: TreeEntry{
+ Name: name,
+ Mode: mode,
+ Hash: fromBlob,
+ },
+ },
+ To: ChangeEntry{
+ Name: path,
+ Tree: s.tree(c, toTree),
+ TreeEntry: TreeEntry{
+ Name: name,
+ Mode: mode,
+ Hash: toBlob,
+ },
+ },
+ }
+
+ action, err := change.Action()
+ c.Assert(err, IsNil)
+ c.Assert(action, Equals, merkletrie.Modify)
+
+ from, to, err := change.Files()
+ c.Assert(err, IsNil)
+
+ c.Assert(from.Name, Equals, name)
+ c.Assert(from.Blob.Hash, Equals, fromBlob)
+ c.Assert(to.Name, Equals, name)
+ c.Assert(to.Blob.Hash, Equals, toBlob)
+
+ str := change.String()
+ c.Assert(str, Equals, "<Action: Modify, Path: utils/difftree/difftree.go>")
+}
+
+func (s *ChangeSuite) TestEmptyChangeFails(c *C) {
+ change := &Change{}
+
+ _, err := change.Action()
+ c.Assert(err, ErrorMatches, "malformed.*")
+
+ _, _, err = change.Files()
+ c.Assert(err, ErrorMatches, "malformed.*")
+
+ str := change.String()
+ c.Assert(str, Equals, "malformed change")
+}
+
+func (s *ChangeSuite) TestErrorsFindingChildsAreDetected(c *C) {
+ // Commit 7beaad711378a4daafccc2c04bc46d36df2a0fd1 of the go-git
+ // fixture modified "examples/latest/latest.go".
+ // the "examples/latest" tree is
+ // b1f01b730b855c82431918cb338ad47ed558999b.
+ // and "examples/latest/latest.go" is blob
+ // 05f583ace3a9a078d8150905a53a4d82567f125f.
+ //
+ // The parent of that commit is
+ // 337148ef6d751477796922ac127b416b8478fcc4.
+ // the "examples/latest" tree is
+ // 8b0af31d2544acb5c4f3816a602f11418cbd126e.
+ // and "examples/latest/latest.go" is blob
+ // de927fad935d172929aacf20e71f3bf0b91dd6f9.
+
+ path := "utils/difftree/difftree.go"
+ name := "difftree.go"
+ mode := os.FileMode(100644)
+ fromBlob := plumbing.NewHash("aaaa") // does not exists
+ fromTree := plumbing.NewHash("b1f01b730b855c82431918cb338ad47ed558999b")
+ toBlob := plumbing.NewHash("bbbb") // does not exists
+ toTree := plumbing.NewHash("8b0af31d2544acb5c4f3816a602f11418cbd126e")
+
+ change := &Change{
+ From: ChangeEntry{
+ Name: path,
+ Tree: s.tree(c, fromTree),
+ TreeEntry: TreeEntry{
+ Name: name,
+ Mode: mode,
+ Hash: fromBlob,
+ },
+ },
+ To: ChangeEntry{},
+ }
+
+ _, _, err := change.Files()
+ c.Assert(err, ErrorMatches, "object not found")
+
+ change = &Change{
+ From: empty,
+ To: ChangeEntry{
+ Name: path,
+ Tree: s.tree(c, toTree),
+ TreeEntry: TreeEntry{
+ Name: name,
+ Mode: mode,
+ Hash: toBlob,
+ },
+ },
+ }
+
+ _, _, err = change.Files()
+ c.Assert(err, ErrorMatches, "object not found")
+}
+
+func (s *ChangeSuite) TestChangesString(c *C) {
+ expected := "[]"
+ changes := Changes{}
+ obtained := changes.String()
+ c.Assert(obtained, Equals, expected)
+
+ expected = "[<Action: Modify, Path: bla>]"
+ changes = make([]*Change, 1)
+ changes[0] = &Change{}
+ changes[0].From.Name = "bla"
+ changes[0].To.Name = "bla"
+
+ obtained = changes.String()
+ c.Assert(obtained, Equals, expected)
+
+ expected = "[<Action: Modify, Path: bla>, <Action: Delete, Path: foo/bar>]"
+ changes = make([]*Change, 2)
+ changes[0] = &Change{}
+ changes[0].From.Name = "bla"
+ changes[0].To.Name = "bla"
+ changes[1] = &Change{}
+ changes[1].From.Name = "foo/bar"
+ obtained = changes.String()
+ c.Assert(obtained, Equals, expected)
+}
+
+func (s *ChangeSuite) TestChangesSort(c *C) {
+ changes := make(Changes, 3)
+ changes[0] = &Change{}
+ changes[0].From.Name = "z"
+ changes[0].To.Name = "z"
+ changes[1] = &Change{}
+ changes[1].From.Name = "b/b"
+ changes[2] = &Change{}
+ changes[2].To.Name = "b/a"
+
+ expected := "[<Action: Insert, Path: b/a>, " +
+ "<Action: Delete, Path: b/b>, " +
+ "<Action: Modify, Path: z>]"
+
+ sort.Sort(changes)
+ c.Assert(changes.String(), Equals, expected)
+}
generated by cgit (git 2.34.1) at 2024-09-20 17:24:45 +0000