//go:build !windows

package cli

import (
	"context"
	"os"
	"path/filepath"
	"strings"
	"testing"
	"time"
)

func TestRunGitKillsChildProcessGroupOnContextCancel(t *testing.T) {
	dir := t.TempDir()
	gitPath := filepath.Join(dir, "git")
	script := "#!/bin/sh\n(sleep 30) &\nwait\n"
	if err := os.WriteFile(gitPath, []byte(script), 0o755); err != nil {
		t.Fatalf("write fake git: %v", err)
	}
	t.Setenv("PATH", dir+string(os.PathListSeparator)+os.Getenv("PATH"))

	ctx, cancel := context.WithTimeout(context.Background(), 100*time.Millisecond)
	defer cancel()
	start := time.Now()
	err := runGit(ctx, "", "fetch")
	elapsed := time.Since(start)
	if err == nil {
		t.Fatal("expected context cancellation error")
	}
	if !strings.Contains(err.Error(), "context deadline exceeded") {
		t.Fatalf("error = %v, want context deadline exceeded", err)
	}
	if elapsed > 2*time.Second {
		t.Fatalf("runGit took %s after context cancellation", elapsed)
	}
}