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package sync
import (
"os"
"os/exec"
"path/filepath"
"strings"
"testing"
)
func TestGitCommand_SetsDir(t *testing.T) {
cmd := gitCommand("/tmp/example-repo", "status")
if cmd.Dir != "/tmp/example-repo" {
t.Fatalf("expected command dir to be set, got %q", cmd.Dir)
}
}
func TestGitCommand_LeavesDirEmptyForGlobalCommands(t *testing.T) {
cmd := gitCommand("", "ls-remote", "--tags", "origin", "v1.0.0")
if cmd.Dir != "" {
t.Fatalf("expected empty dir for global command, got %q", cmd.Dir)
}
}
func TestParseTagHashOutput_EmptyOutput(t *testing.T) {
for _, in := range [][]byte{nil, []byte(""), []byte(" \n\t \n")} {
hash, err := parseTagHashOutput(in, "v1.0.0", "origin")
if err == nil {
t.Fatalf("expected error for empty output %q, got hash %q", in, hash)
}
if hash != "" {
t.Fatalf("expected empty hash for empty output, got %q", hash)
}
if !strings.Contains(err.Error(), "v1.0.0") || !strings.Contains(err.Error(), "origin") {
t.Fatalf("expected error to mention tag and source, got %v", err)
}
}
}
func TestParseTagHashOutput_ReturnsFirstField(t *testing.T) {
hash, err := parseTagHashOutput([]byte("abc123\trefs/tags/v1.0.0\n"), "v1.0.0", "origin")
if err != nil {
t.Fatalf("unexpected error: %v", err)
}
if hash != "abc123" {
t.Fatalf("expected hash %q, got %q", "abc123", hash)
}
}
func TestGetTagCommitHash_LocalTagPeelsToCommitHash(t *testing.T) {
repoPath := t.TempDir()
runGit(t, repoPath, "init")
runGit(t, repoPath, "-c", "user.name=Test", "-c", "user.email=test@example.com", "commit", "--allow-empty", "-m", "initial commit")
runGit(t, repoPath, "tag", "-a", "v1.0.0", "-m", "release v1.0.0")
headHash := runGit(t, repoPath, "rev-parse", "HEAD")
tagHash, err := getTagCommitHash(repoPath, "v1.0.0", "local")
if err != nil {
t.Fatalf("expected local tag hash lookup to succeed, got error: %v", err)
}
if tagHash != headHash {
t.Fatalf("expected peeled local tag hash %q, got %q", headHash, tagHash)
}
}
func TestGetTagCommitHash_LocalTagMissingReturnsError(t *testing.T) {
repoPath := t.TempDir()
runGit(t, repoPath, "init")
tagHash, err := getTagCommitHash(repoPath, "v9.9.9", "local")
if err == nil {
t.Fatalf("expected error for missing local tag, got hash %q", tagHash)
}
if tagHash != "" {
t.Fatalf("expected empty hash for missing local tag, got %q", tagHash)
}
}
func TestPopStash_NoStashReturnsError(t *testing.T) {
repoPath := t.TempDir()
runGit(t, repoPath, "init")
if err := popStash(repoPath); err == nil {
t.Fatal("expected error when popping stash with no entries")
}
}
func TestPopStash_RestoresStashedChanges(t *testing.T) {
repoPath := t.TempDir()
runGit(t, repoPath, "init")
runGit(t, repoPath, "config", "user.name", "Test User")
runGit(t, repoPath, "config", "user.email", "test@example.com")
trackedFile := filepath.Join(repoPath, "tracked.txt")
if err := os.WriteFile(trackedFile, []byte("first\n"), 0o644); err != nil {
t.Fatalf("write tracked file: %v", err)
}
runGit(t, repoPath, "add", "tracked.txt")
runGit(t, repoPath, "commit", "-m", "initial")
if err := os.WriteFile(trackedFile, []byte("second\n"), 0o644); err != nil {
t.Fatalf("update tracked file: %v", err)
}
runGit(t, repoPath, "stash", "push", "-m", "test-stash")
if err := popStash(repoPath); err != nil {
t.Fatalf("expected popStash to succeed, got error: %v", err)
}
content, err := os.ReadFile(trackedFile)
if err != nil {
t.Fatalf("read tracked file: %v", err)
}
if string(content) != "second\n" {
t.Fatalf("expected stashed content to be restored, got %q", string(content))
}
}
func TestStashChanges_NoStashEntryReturnsFalse(t *testing.T) {
repoPath := t.TempDir()
runGit(t, repoPath, "init")
runGit(t, repoPath, "config", "user.name", "Test User")
runGit(t, repoPath, "config", "user.email", "test@example.com")
trackedFile := filepath.Join(repoPath, "tracked.txt")
if err := os.WriteFile(trackedFile, []byte("committed\n"), 0o644); err != nil {
t.Fatalf("write tracked file: %v", err)
}
runGit(t, repoPath, "add", "tracked.txt")
runGit(t, repoPath, "commit", "-m", "initial")
untrackedFile := filepath.Join(repoPath, "untracked.txt")
if err := os.WriteFile(untrackedFile, []byte("new\n"), 0o644); err != nil {
t.Fatalf("write untracked file: %v", err)
}
stashed, err := stashChanges(repoPath)
if err != nil {
t.Fatalf("stashChanges() unexpected error: %v", err)
}
if stashed {
t.Fatal("stashChanges() = true, want false when no stash entry is created")
}
if stashList := runGit(t, repoPath, "stash", "list"); stashList != "" {
t.Fatalf("expected no stash entries, got %q", stashList)
}
}
func TestHandleWorkingDirectoryState_NoStashEntryReturnsNotStashed(t *testing.T) {
workDir := t.TempDir()
repoName := "repo"
repoPath := filepath.Join(workDir, repoName)
if err := os.MkdirAll(repoPath, 0o755); err != nil {
t.Fatalf("mkdir repo path: %v", err)
}
runGit(t, repoPath, "init")
runGit(t, repoPath, "config", "user.name", "Test User")
runGit(t, repoPath, "config", "user.email", "test@example.com")
trackedFile := filepath.Join(repoPath, "tracked.txt")
if err := os.WriteFile(trackedFile, []byte("committed\n"), 0o644); err != nil {
t.Fatalf("write tracked file: %v", err)
}
runGit(t, repoPath, "add", "tracked.txt")
runGit(t, repoPath, "commit", "-m", "initial")
untrackedFile := filepath.Join(repoPath, "untracked.txt")
if err := os.WriteFile(untrackedFile, []byte("new\n"), 0o644); err != nil {
t.Fatalf("write untracked file: %v", err)
}
s := &Syncer{workDir: workDir, repoName: repoName}
stashed, err := s.handleWorkingDirectoryState()
if err != nil {
t.Fatalf("handleWorkingDirectoryState() unexpected error: %v", err)
}
if stashed {
t.Fatal("handleWorkingDirectoryState() = true, want false when stash push creates no entry")
}
}
func runGit(t *testing.T, repoPath string, args ...string) string {
t.Helper()
cmd := exec.Command("git", args...)
cmd.Dir = repoPath
output, err := cmd.CombinedOutput()
if err != nil {
t.Fatalf("git %v failed: %v\n%s", args, err, string(output))
}
return strings.TrimSpace(string(output))
}
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