1 files changed, 62 insertions, 0 deletions
diff --git a/std/fs/path/dirname_test.ts b/std/fs/path/dirname_test.ts
new file mode 100644
index 000000000..047d4859b
--- /dev/null
+++ b/std/fs/path/dirname_test.ts
@@ -0,0 +1,62 @@
+// Copyright the Browserify authors. MIT License.
+// Ported from https://github.com/browserify/path-browserify/
+
+import { test } from "../../testing/mod.ts";
+import { assertEquals } from "../../testing/asserts.ts";
+import * as path from "./mod.ts";
+
+test(function dirname() {
+  assertEquals(path.posix.dirname("/a/b/"), "/a");
+  assertEquals(path.posix.dirname("/a/b"), "/a");
+  assertEquals(path.posix.dirname("/a"), "/");
+  assertEquals(path.posix.dirname(""), ".");
+  assertEquals(path.posix.dirname("/"), "/");
+  assertEquals(path.posix.dirname("////"), "/");
+  assertEquals(path.posix.dirname("//a"), "//");
+  assertEquals(path.posix.dirname("foo"), ".");
+});
+
+test(function dirnameWin32() {
+  assertEquals(path.win32.dirname("c:\\"), "c:\\");
+  assertEquals(path.win32.dirname("c:\\foo"), "c:\\");
+  assertEquals(path.win32.dirname("c:\\foo\\"), "c:\\");
+  assertEquals(path.win32.dirname("c:\\foo\\bar"), "c:\\foo");
+  assertEquals(path.win32.dirname("c:\\foo\\bar\\"), "c:\\foo");
+  assertEquals(path.win32.dirname("c:\\foo\\bar\\baz"), "c:\\foo\\bar");
+  assertEquals(path.win32.dirname("\\"), "\\");
+  assertEquals(path.win32.dirname("\\foo"), "\\");
+  assertEquals(path.win32.dirname("\\foo\\"), "\\");
+  assertEquals(path.win32.dirname("\\foo\\bar"), "\\foo");
+  assertEquals(path.win32.dirname("\\foo\\bar\\"), "\\foo");
+  assertEquals(path.win32.dirname("\\foo\\bar\\baz"), "\\foo\\bar");
+  assertEquals(path.win32.dirname("c:"), "c:");
+  assertEquals(path.win32.dirname("c:foo"), "c:");
+  assertEquals(path.win32.dirname("c:foo\\"), "c:");
+  assertEquals(path.win32.dirname("c:foo\\bar"), "c:foo");
+  assertEquals(path.win32.dirname("c:foo\\bar\\"), "c:foo");
+  assertEquals(path.win32.dirname("c:foo\\bar\\baz"), "c:foo\\bar");
+  assertEquals(path.win32.dirname("file:stream"), ".");
+  assertEquals(path.win32.dirname("dir\\file:stream"), "dir");
+  assertEquals(path.win32.dirname("\\\\unc\\share"), "\\\\unc\\share");
+  assertEquals(path.win32.dirname("\\\\unc\\share\\foo"), "\\\\unc\\share\\");
+  assertEquals(path.win32.dirname("\\\\unc\\share\\foo\\"), "\\\\unc\\share\\");
+  assertEquals(
+    path.win32.dirname("\\\\unc\\share\\foo\\bar"),
+    "\\\\unc\\share\\foo"
+  );
+  assertEquals(
+    path.win32.dirname("\\\\unc\\share\\foo\\bar\\"),
+    "\\\\unc\\share\\foo"
+  );
+  assertEquals(
+    path.win32.dirname("\\\\unc\\share\\foo\\bar\\baz"),
+    "\\\\unc\\share\\foo\\bar"
+  );
+  assertEquals(path.win32.dirname("/a/b/"), "/a");
+  assertEquals(path.win32.dirname("/a/b"), "/a");
+  assertEquals(path.win32.dirname("/a"), "/");
+  assertEquals(path.win32.dirname(""), ".");
+  assertEquals(path.win32.dirname("/"), "/");
+  assertEquals(path.win32.dirname("////"), "/");
+  assertEquals(path.win32.dirname("foo"), ".");
+});