From 05e07f6c6aca1662c33359f41c66e6f9b6eb935a Mon Sep 17 00:00:00 2001
From: Runxi Yu
Date: Fri, 20 Feb 2026 21:19:47 +0800
Subject: testgit: Add test harnesses

---
 internal/testgit/algorithms.go | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)
 create mode 100644 internal/testgit/algorithms.go

(limited to 'internal/testgit/algorithms.go')

diff --git a/internal/testgit/algorithms.go b/internal/testgit/algorithms.go
new file mode 100644
index 00000000..833b846b
--- /dev/null
+++ b/internal/testgit/algorithms.go
@@ -0,0 +1,25 @@
+package testgit
+
+import (
+	"testing"
+
+	"codeberg.org/lindenii/furgit/oid"
+)
+
+// SupportedAlgorithms returns all object ID algorithms supported by furgit.
+func SupportedAlgorithms() []oid.Algorithm {
+	return []oid.Algorithm{
+		oid.AlgorithmSHA1,
+		oid.AlgorithmSHA256,
+	}
+}
+
+// ForEachAlgorithm runs a subtest for every supported algorithm.
+func ForEachAlgorithm(t *testing.T, fn func(t *testing.T, algo oid.Algorithm)) {
+	t.Helper()
+	for _, algo := range SupportedAlgorithms() {
+		t.Run(algo.String(), func(t *testing.T) {
+			fn(t, algo)
+		})
+	}
+}
-- 
cgit v1.3.1-10-gc9f91