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-rw-r--r--utils/merkletrie/change_test.go76
1 files changed, 76 insertions, 0 deletions
diff --git a/utils/merkletrie/change_test.go b/utils/merkletrie/change_test.go
new file mode 100644
index 0000000..4f908ce
--- /dev/null
+++ b/utils/merkletrie/change_test.go
@@ -0,0 +1,76 @@
+package merkletrie_test
+
+import (
+ "srcd.works/go-git.v4/utils/merkletrie"
+ "srcd.works/go-git.v4/utils/merkletrie/internal/fsnoder"
+ "srcd.works/go-git.v4/utils/merkletrie/noder"
+
+ . "gopkg.in/check.v1"
+)
+
+type ChangeSuite struct{}
+
+var _ = Suite(&ChangeSuite{})
+
+func (s *ChangeSuite) TestActionString(c *C) {
+ action := merkletrie.Insert
+ c.Assert(action.String(), Equals, "Insert")
+
+ action = merkletrie.Delete
+ c.Assert(action.String(), Equals, "Delete")
+
+ action = merkletrie.Modify
+ c.Assert(action.String(), Equals, "Modify")
+}
+
+func (s *ChangeSuite) TestUnsupportedAction(c *C) {
+ a := merkletrie.Action(42)
+ c.Assert(a.String, PanicMatches, "unsupported action.*")
+}
+
+func (s ChangeSuite) TestNewInsert(c *C) {
+ tree, err := fsnoder.New("(a(b(z<>)))")
+ c.Assert(err, IsNil)
+ path := find(c, tree, "z")
+ change := merkletrie.NewInsert(path)
+ c.Assert(change.String(), Equals, "<Insert a/b/z>")
+
+ shortPath := noder.Path([]noder.Noder{path.Last()})
+ change = merkletrie.NewInsert(shortPath)
+ c.Assert(change.String(), Equals, "<Insert z>")
+}
+
+func (s ChangeSuite) TestNewDelete(c *C) {
+ tree, err := fsnoder.New("(a(b(z<>)))")
+ c.Assert(err, IsNil)
+ path := find(c, tree, "z")
+ change := merkletrie.NewDelete(path)
+ c.Assert(change.String(), Equals, "<Delete a/b/z>")
+
+ shortPath := noder.Path([]noder.Noder{path.Last()})
+ change = merkletrie.NewDelete(shortPath)
+ c.Assert(change.String(), Equals, "<Delete z>")
+}
+
+func (s ChangeSuite) TestNewModify(c *C) {
+ tree1, err := fsnoder.New("(a(b(z<>)))")
+ c.Assert(err, IsNil)
+ path1 := find(c, tree1, "z")
+
+ tree2, err := fsnoder.New("(a(b(z<1>)))")
+ c.Assert(err, IsNil)
+ path2 := find(c, tree2, "z")
+
+ change := merkletrie.NewModify(path1, path2)
+ c.Assert(change.String(), Equals, "<Modify a/b/z>")
+
+ shortPath1 := noder.Path([]noder.Noder{path1.Last()})
+ shortPath2 := noder.Path([]noder.Noder{path2.Last()})
+ change = merkletrie.NewModify(shortPath1, shortPath2)
+ c.Assert(change.String(), Equals, "<Modify z>")
+}
+
+func (s ChangeSuite) TestMalformedChange(c *C) {
+ change := merkletrie.Change{}
+ c.Assert(change.String, PanicMatches, "malformed change.*")
+}