feat(infra/git): Runner interface + Credential injection + GitError

internal/infra/git/testutil_test.go

@@ -0,0 +1,55 @@
+package git
+
+import (
+	"os"
+	"os/exec"
+	"path/filepath"
+	"testing"
+
+	"github.com/stretchr/testify/require"
+)
+
+// gitAvailable 跳过测试如果 git 不在 PATH。
+func gitAvailable(t *testing.T) {
+	t.Helper()
+	if _, err := exec.LookPath("git"); err != nil {
+		t.Skip("git not found in PATH")
+	}
+}
+
+// makeBareRepo 在 tmpdir 下 init --bare 一个仓库并塞一个初始 commit。
+// 返回 bare repo 绝对路径（可作为 remote URL 的 file:// 路径）。
+func makeBareRepo(t *testing.T) string {
+	t.Helper()
+	gitAvailable(t)
+	dir := t.TempDir()
+	bare := filepath.Join(dir, "remote.git")
+	require.NoError(t, exec.Command("git", "init", "--bare", "-b", "main", bare).Run())
+
+	// 用一个 working repo 推一次 commit 进 bare，避免空 remote 导致 clone 报错
+	work := filepath.Join(dir, "seed")
+	require.NoError(t, os.MkdirAll(work, 0o755))
+	mustGit(t, work, "init", "-b", "main")
+	mustGit(t, work, "config", "user.email", "test@example.com")
+	mustGit(t, work, "config", "user.name", "Test")
+	require.NoError(t, os.WriteFile(filepath.Join(work, "README.md"), []byte("hello\n"), 0o644))
+	mustGit(t, work, "add", ".")
+	mustGit(t, work, "commit", "-m", "initial")
+	mustGit(t, work, "remote", "add", "origin", bare)
+	mustGit(t, work, "push", "origin", "main")
+	return bare
+}
+
+func mustGit(t *testing.T, dir string, args ...string) {
+	t.Helper()
+	c := exec.Command("git", args...)
+	c.Dir = dir
+	out, err := c.CombinedOutput()
+	require.NoError(t, err, "git %v: %s", args, string(out))
+}
+
+// newTestRunner 返回挂在 t.TempDir() 的 Runner。
+func newTestRunner(t *testing.T) *DefaultRunner {
+	t.Helper()
+	return NewDefaultRunner(Config{Binary: "git", TmpDir: t.TempDir()})
+}