1 files changed, 84 insertions, 0 deletions
diff --git a/cli/js/read_dir_test.ts b/cli/js/read_dir_test.ts
new file mode 100644
index 000000000..3e11df9fe
--- /dev/null
+++ b/cli/js/read_dir_test.ts
@@ -0,0 +1,84 @@
+// Copyright 2018-2019 the Deno authors. All rights reserved. MIT license.
+import { testPerm, assert, assertEquals } from "./test_util.ts";
+
+type FileInfo = Deno.FileInfo;
+
+function assertSameContent(files: FileInfo[]): void {
+  let counter = 0;
+
+  for (const file of files) {
+    if (file.name === "subdir") {
+      assert(file.isDirectory());
+      counter++;
+    }
+
+    if (file.name === "002_hello.ts") {
+      assertEquals(file.mode!, Deno.statSync(`tests/${file.name}`).mode!);
+      counter++;
+    }
+  }
+
+  assertEquals(counter, 2);
+}
+
+testPerm({ read: true }, function readDirSyncSuccess(): void {
+  const files = Deno.readDirSync("tests/");
+  assertSameContent(files);
+});
+
+testPerm({ read: false }, function readDirSyncPerm(): void {
+  let caughtError = false;
+  try {
+    Deno.readDirSync("tests/");
+  } catch (e) {
+    caughtError = true;
+    assertEquals(e.kind, Deno.ErrorKind.PermissionDenied);
+    assertEquals(e.name, "PermissionDenied");
+  }
+  assert(caughtError);
+});
+
+testPerm({ read: true }, function readDirSyncNotDir(): void {
+  let caughtError = false;
+  let src;
+
+  try {
+    src = Deno.readDirSync("package.json");
+  } catch (err) {
+    caughtError = true;
+    assertEquals(err.kind, Deno.ErrorKind.Other);
+  }
+  assert(caughtError);
+  assertEquals(src, undefined);
+});
+
+testPerm({ read: true }, function readDirSyncNotFound(): void {
+  let caughtError = false;
+  let src;
+
+  try {
+    src = Deno.readDirSync("bad_dir_name");
+  } catch (err) {
+    caughtError = true;
+    assertEquals(err.kind, Deno.ErrorKind.NotFound);
+  }
+  assert(caughtError);
+  assertEquals(src, undefined);
+});
+
+testPerm({ read: true }, async function readDirSuccess(): Promise<void> {
+  const files = await Deno.readDir("tests/");
+  assertSameContent(files);
+});
+
+testPerm({ read: false }, async function readDirPerm(): Promise<void> {
+  let caughtError = false;
+  try {
+    await Deno.readDir("tests/");
+  } catch (e) {
+    caughtError = true;
+    assertEquals(e.kind, Deno.ErrorKind.PermissionDenied);
+    assertEquals(e.name, "PermissionDenied");
+  }
+  assert(caughtError);
+});