Initial commit

1 files changed, 33 insertions, 0 deletions

diff --git a/hash_test.go b/hash_test.go
new file mode 100644
index 00000000..95660d88
--- /dev/null
+++ b/hash_test.go
@@ -0,0 +1,33 @@
+package furgit
+
+import "testing"
+
+func TestParseHashValidAndInvalid(t *testing.T) {
+	const hex40 = "0123456789abcdef0123456789abcdef01234567"
+	id, err := ParseHash(hex40)
+	if err != nil {
+		t.Fatalf("ParseHash returned error: %v", err)
+	}
+	if got := id.String(); got != hex40 {
+		t.Fatalf("unexpected String result: %q", got)
+	}
+
+	if _, err := ParseHash("abcd"); err == nil {
+		t.Fatal("expected error for short hash")
+	}
+	if _, err := ParseHash("zzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz"); err == nil {
+		t.Fatal("expected error for non-hex input")
+	}
+}
+
+func TestHashBytesCopiesUnderlyingData(t *testing.T) {
+	var id Hash
+	for i := range id {
+		id[i] = byte(i)
+	}
+	orig := id.Bytes()
+	orig[0] ^= 0xff
+	if id[0] == orig[0] {
+		t.Fatal("Bytes should return a copy")
+	}
+}