1 files changed, 25 insertions, 0 deletions
diff --git a/modules/git/commit_test.go b/modules/git/commit_test.go
index 9b5fc8f660..0925a6ce6a 100644
--- a/modules/git/commit_test.go
+++ b/modules/git/commit_test.go
@@ -105,3 +105,28 @@ empty commit`, commitFromReader.Signature.Payload)
 	commitFromReader.Signature.Payload += "\n\n"
 	assert.EqualValues(t, commitFromReader, commitFromReader2)
 }
+
+func TestHasPreviousCommit(t *testing.T) {
+	bareRepo1Path := filepath.Join(testReposDir, "repo1_bare")
+
+	repo, err := OpenRepository(bareRepo1Path)
+	assert.NoError(t, err)
+
+	commit, err := repo.GetCommit("8006ff9adbf0cb94da7dad9e537e53817f9fa5c0")
+	assert.NoError(t, err)
+
+	parentSHA := MustIDFromString("8d92fc957a4d7cfd98bc375f0b7bb189a0d6c9f2")
+	notParentSHA := MustIDFromString("2839944139e0de9737a044f78b0e4b40d989a9e3")
+
+	haz, err := commit.HasPreviousCommit(parentSHA)
+	assert.NoError(t, err)
+	assert.True(t, haz)
+
+	hazNot, err := commit.HasPreviousCommit(notParentSHA)
+	assert.NoError(t, err)
+	assert.False(t, hazNot)
+
+	selfNot, err := commit.HasPreviousCommit(commit.ID)
+	assert.NoError(t, err)
+	assert.False(t, selfNot)
+}