1 files changed, 7 insertions, 0 deletions
diff --git a/git_test.go b/git_test.go
index 6a3aeaa..cbf3227 100644
--- a/git_test.go
+++ b/git_test.go
@@ -93,3 +93,10 @@ func TestOidZero(t *testing.T) {
 		t.Error("Zero Oid is not zero")
 	}
 }
+
+func TestEmptyOid(t *testing.T) {
+	_, err := NewOid("")
+	if err == nil || !IsErrorCode(err, ErrGeneric) {
+		t.Fatal("Should have returned invalid error")
+	}
+}