| 1 | package workspaceid |
| 2 | |
| 3 | import ( |
| 4 | "os" |
| 5 | "path/filepath" |
| 6 | "strings" |
| 7 | "testing" |
| 8 | ) |
| 9 | |
| 10 | func sharesRepo(a, b string) bool { |
| 11 | repo := RepoDir(a) |
| 12 | return repo != "" && repo == RepoDir(b) |
| 13 | } |
| 14 | |
| 15 | func TestKeyPathWhenNotARepository(t *testing.T) { |
| 16 | dir := t.TempDir() |
| 17 | key := Key(dir) |
| 18 | if !strings.HasPrefix(key, PathPrefix) { |
| 19 | t.Fatalf("Key(%q) = %q, want a %s key", dir, key, PathPrefix) |
| 20 | } |
| 21 | if RepoDir(dir) != "" { |
| 22 | t.Fatalf("RepoDir(%q) = %q, want empty", dir, RepoDir(dir)) |
| 23 | } |
| 24 | } |
| 25 | |
| 26 | func TestKeyRepoForRootAndSubdirectory(t *testing.T) { |
| 27 | repo := t.TempDir() |
| 28 | mkdir(t, filepath.Join(repo, ".git")) |
| 29 | sub := filepath.Join(repo, "internal", "agent") |
| 30 | mkdir(t, sub) |
| 31 | |
| 32 | rootKey := Key(repo) |
| 33 | if !strings.HasPrefix(rootKey, RepoPrefix) { |
| 34 | t.Fatalf("Key(repo) = %q, want a %s key", rootKey, RepoPrefix) |
| 35 | } |
| 36 | if got := Key(sub); got != rootKey { |
| 37 | t.Fatalf("Key(subdir) = %q, want the repository key %q", got, rootKey) |
| 38 | } |
| 39 | } |
| 40 | |
| 41 | // A linked worktree must land on the same key as the tree it was cut from, or |
| 42 | // a switch flipped in the main tree would silently not apply in the worktree. |
| 43 | func TestKeyLinkedWorktreeSharesTheRepositoryKey(t *testing.T) { |
| 44 | base := t.TempDir() |
| 45 | repo := filepath.Join(base, "repo") |
| 46 | gitDir := filepath.Join(repo, ".git") |
| 47 | mkdir(t, gitDir) |
| 48 | mkdir(t, filepath.Join(gitDir, "worktrees", "studio")) |
| 49 | |
| 50 | tree := filepath.Join(base, "trees", "studio") |
| 51 | mkdir(t, tree) |
| 52 | writeFile(t, filepath.Join(tree, ".git"), |
| 53 | "gitdir: "+filepath.Join(gitDir, "worktrees", "studio")+"\n") |
| 54 | |
| 55 | if got, want := Key(tree), Key(repo); got != want { |
| 56 | t.Fatalf("worktree key = %q, main tree key = %q, want equal", got, want) |
| 57 | } |
| 58 | if !sharesRepo(tree, repo) { |
| 59 | t.Fatal("sharesRepo(worktree, repo) = false, want true") |
| 60 | } |
| 61 | } |
| 62 | |
| 63 | func TestKeyRelativeGitdirPointer(t *testing.T) { |
| 64 | base := t.TempDir() |
| 65 | repo := filepath.Join(base, "repo") |
| 66 | mkdir(t, filepath.Join(repo, ".git", "worktrees", "wt")) |
| 67 | tree := filepath.Join(base, "wt") |
| 68 | mkdir(t, tree) |
| 69 | writeFile(t, filepath.Join(tree, ".git"), "gitdir: ../repo/.git/worktrees/wt\n") |
| 70 | |
| 71 | if got, want := Key(tree), Key(repo); got != want { |
| 72 | t.Fatalf("relative-pointer worktree key = %q, want %q", got, want) |
| 73 | } |
| 74 | } |
| 75 | |
| 76 | // A submodule is its own repository: its gitdir has no worktrees element, so it |
| 77 | // must not converge onto the superproject's key. |
| 78 | func TestKeySubmoduleStaysItsOwnRepository(t *testing.T) { |
| 79 | base := t.TempDir() |
| 80 | super := filepath.Join(base, "super") |
| 81 | mkdir(t, filepath.Join(super, ".git", "modules", "vendor")) |
| 82 | sub := filepath.Join(super, "vendor") |
| 83 | mkdir(t, sub) |
| 84 | writeFile(t, filepath.Join(sub, ".git"), "gitdir: ../.git/modules/vendor\n") |
| 85 | |
| 86 | if Key(sub) == Key(super) { |
| 87 | t.Fatalf("submodule shares the superproject key %q", Key(sub)) |
| 88 | } |
| 89 | if !strings.HasPrefix(Key(sub), RepoPrefix) { |
| 90 | t.Fatalf("Key(submodule) = %q, want a %s key", Key(sub), RepoPrefix) |
| 91 | } |
| 92 | } |
| 93 | |
| 94 | // Two plain folders are two projects. Walking up for a repository must not |
| 95 | // collapse them onto the drive the walk ended on. |
| 96 | func TestKeyDistinctPerFolderOutsideRepositories(t *testing.T) { |
| 97 | a, b := t.TempDir(), t.TempDir() |
| 98 | if Key(a) == Key(b) { |
| 99 | t.Fatalf("two plain folders share key %q", Key(a)) |
| 100 | } |
| 101 | if Key(a) != Key(a+string(filepath.Separator)) { |
| 102 | t.Fatal("Key is not stable across spellings of one folder") |
| 103 | } |
| 104 | } |
| 105 | |
| 106 | func TestKeyEmptyRoot(t *testing.T) { |
| 107 | if got := Key(" "); got != "" { |
| 108 | t.Fatalf("Key(blank) = %q, want empty", got) |
| 109 | } |
| 110 | } |
| 111 | |
| 112 | func TestSharesRepoIsFalseOutsideRepositories(t *testing.T) { |
| 113 | a, b := t.TempDir(), t.TempDir() |
| 114 | if sharesRepo(a, b) { |
| 115 | t.Fatal("SharesRepo on two plain folders = true, want false") |
| 116 | } |
| 117 | } |
| 118 | |
| 119 | func mkdir(t *testing.T, path string) { |
| 120 | t.Helper() |
| 121 | if err := os.MkdirAll(path, 0o700); err != nil { |
| 122 | t.Fatalf("mkdir %s: %v", path, err) |
| 123 | } |
| 124 | } |
| 125 | |
| 126 | func writeFile(t *testing.T, path, body string) { |
| 127 | t.Helper() |
| 128 | if err := os.WriteFile(path, []byte(body), 0o600); err != nil { |
| 129 | t.Fatalf("write %s: %v", path, err) |
| 130 | } |
| 131 | } |
| 132 |