Remote.Fetch: support exact SHA1 refspecs

1 files changed, 30 insertions, 1 deletions

diff --git a/remote_test.go b/remote_test.go
index 6766514..0fc3449 100644
--- a/remote_test.go
+++ b/remote_test.go
@@ -20,8 +20,8 @@ import (
 	"github.com/go-git/go-git/v5/storage/memory"
 
 	"github.com/go-git/go-billy/v5/osfs"
-	. "gopkg.in/check.v1"
 	fixtures "github.com/go-git/go-git-fixtures/v4"
+	. "gopkg.in/check.v1"
 )
 
 type RemoteSuite struct {
@@ -71,6 +71,35 @@ func (s *RemoteSuite) TestFetchWildcard(c *C) {
 	})
 }
 
+func (s *RemoteSuite) TestFetchExactSHA1(c *C) {
+	r := NewRemote(memory.NewStorage(), &config.RemoteConfig{
+		URLs: []string{"https://github.com/git-fixtures/basic.git"},
+	})
+
+	s.testFetch(c, r, &FetchOptions{
+		RefSpecs: []config.RefSpec{
+			config.RefSpec("35e85108805c84807bc66a02d91535e1e24b38b9:refs/heads/foo"),
+		},
+	}, []*plumbing.Reference{
+		plumbing.NewReferenceFromStrings("refs/heads/foo", "35e85108805c84807bc66a02d91535e1e24b38b9"),
+	})
+}
+
+func (s *RemoteSuite) TestFetchExactSHA1_NotSoported(c *C) {
+	r := NewRemote(memory.NewStorage(), &config.RemoteConfig{
+		URLs: []string{s.GetBasicLocalRepositoryURL()},
+	})
+
+	err := r.Fetch(&FetchOptions{
+		RefSpecs: []config.RefSpec{
+			config.RefSpec("35e85108805c84807bc66a02d91535e1e24b38b9:refs/heads/foo"),
+		},
+	})
+
+	c.Assert(err, Equals, ErrExactSHA1NotSupported)
+
+}
+
 func (s *RemoteSuite) TestFetchWildcardTags(c *C) {
 	r := NewRemote(memory.NewStorage(), &config.RemoteConfig{
 		URLs: []string{s.GetLocalRepositoryURL(fixtures.ByTag("tags").One())},