1 files changed, 27 insertions, 0 deletions
diff --git a/bug/comment_test.go b/bug/comment_test.go
new file mode 100644
index 00000000..423d10d8
--- /dev/null
+++ b/bug/comment_test.go
@@ -0,0 +1,27 @@
+package bug
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/require"
+
+	"github.com/MichaelMure/git-bug/entity"
+)
+
+func TestCommentId(t *testing.T) {
+	bugId := entity.Id("abcdefghijklmnopqrstuvwxyz1234__________")
+	opId := entity.Id("ABCDEFGHIJ______________________________")
+	expectedId := entity.Id("aAbBcCdefDghijEklmnFopqrGstuvHwxyzI1234J")
+
+	mergedId := DeriveCommentId(bugId, opId)
+	require.Equal(t, expectedId, mergedId)
+
+	// full length
+	splitBugId, splitCommentId := SplitCommentId(mergedId.String())
+	require.Equal(t, string(bugId[:30]), splitBugId)
+	require.Equal(t, string(opId[:10]), splitCommentId)
+
+	splitBugId, splitCommentId = SplitCommentId(string(expectedId[:6]))
+	require.Equal(t, string(bugId[:3]), splitBugId)
+	require.Equal(t, string(opId[:3]), splitCommentId)
+}