1 files changed, 159 insertions, 0 deletions
diff --git a/cli/js/tests/chmod_test.ts b/cli/js/tests/chmod_test.ts
new file mode 100644
index 000000000..8731fad22
--- /dev/null
+++ b/cli/js/tests/chmod_test.ts
@@ -0,0 +1,159 @@
+// Copyright 2018-2020 the Deno authors. All rights reserved. MIT license.
+import { unitTest, assert, assertEquals } from "./test_util.ts";
+
+const isNotWindows = Deno.build.os !== "win";
+
+unitTest(
+  { perms: { read: true, write: true } },
+  function chmodSyncSuccess(): void {
+    const enc = new TextEncoder();
+    const data = enc.encode("Hello");
+    const tempDir = Deno.makeTempDirSync();
+    const filename = tempDir + "/test.txt";
+    Deno.writeFileSync(filename, data, { mode: 0o666 });
+
+    // On windows no effect, but should not crash
+    Deno.chmodSync(filename, 0o777);
+
+    // Check success when not on windows
+    if (isNotWindows) {
+      const fileInfo = Deno.statSync(filename);
+      assert(fileInfo.mode);
+      assertEquals(fileInfo.mode & 0o777, 0o777);
+    }
+  }
+);
+
+// Check symlink when not on windows
+unitTest(
+  {
+    skip: Deno.build.os === "win",
+    perms: { read: true, write: true }
+  },
+  function chmodSyncSymlinkSuccess(): void {
+    const enc = new TextEncoder();
+    const data = enc.encode("Hello");
+    const tempDir = Deno.makeTempDirSync();
+
+    const filename = tempDir + "/test.txt";
+    Deno.writeFileSync(filename, data, { mode: 0o666 });
+    const symlinkName = tempDir + "/test_symlink.txt";
+    Deno.symlinkSync(filename, symlinkName);
+
+    let symlinkInfo = Deno.lstatSync(symlinkName);
+    assert(symlinkInfo.mode);
+    const symlinkMode = symlinkInfo.mode & 0o777; // platform dependent
+
+    Deno.chmodSync(symlinkName, 0o777);
+
+    // Change actual file mode, not symlink
+    const fileInfo = Deno.statSync(filename);
+    assert(fileInfo.mode);
+    assertEquals(fileInfo.mode & 0o777, 0o777);
+    symlinkInfo = Deno.lstatSync(symlinkName);
+    assert(symlinkInfo.mode);
+    assertEquals(symlinkInfo.mode & 0o777, symlinkMode);
+  }
+);
+
+unitTest({ perms: { write: true } }, function chmodSyncFailure(): void {
+  let err;
+  try {
+    const filename = "/badfile.txt";
+    Deno.chmodSync(filename, 0o777);
+  } catch (e) {
+    err = e;
+  }
+  assert(err instanceof Deno.errors.NotFound);
+});
+
+unitTest({ perms: { write: false } }, function chmodSyncPerm(): void {
+  let err;
+  try {
+    Deno.chmodSync("/somefile.txt", 0o777);
+  } catch (e) {
+    err = e;
+  }
+  assert(err instanceof Deno.errors.PermissionDenied);
+  assertEquals(err.name, "PermissionDenied");
+});
+
+unitTest(
+  { perms: { read: true, write: true } },
+  async function chmodSuccess(): Promise<void> {
+    const enc = new TextEncoder();
+    const data = enc.encode("Hello");
+    const tempDir = Deno.makeTempDirSync();
+    const filename = tempDir + "/test.txt";
+    Deno.writeFileSync(filename, data, { mode: 0o666 });
+
+    // On windows no effect, but should not crash
+    await Deno.chmod(filename, 0o777);
+
+    // Check success when not on windows
+    if (isNotWindows) {
+      const fileInfo = Deno.statSync(filename);
+      assert(fileInfo.mode);
+      assertEquals(fileInfo.mode & 0o777, 0o777);
+    }
+  }
+);
+
+// Check symlink when not on windows
+
+unitTest(
+  {
+    skip: Deno.build.os === "win",
+    perms: { read: true, write: true }
+  },
+  async function chmodSymlinkSuccess(): Promise<void> {
+    const enc = new TextEncoder();
+    const data = enc.encode("Hello");
+    const tempDir = Deno.makeTempDirSync();
+
+    const filename = tempDir + "/test.txt";
+    Deno.writeFileSync(filename, data, { mode: 0o666 });
+    const symlinkName = tempDir + "/test_symlink.txt";
+    Deno.symlinkSync(filename, symlinkName);
+
+    let symlinkInfo = Deno.lstatSync(symlinkName);
+    assert(symlinkInfo.mode);
+    const symlinkMode = symlinkInfo.mode & 0o777; // platform dependent
+
+    await Deno.chmod(symlinkName, 0o777);
+
+    // Just change actual file mode, not symlink
+    const fileInfo = Deno.statSync(filename);
+    assert(fileInfo.mode);
+    assertEquals(fileInfo.mode & 0o777, 0o777);
+    symlinkInfo = Deno.lstatSync(symlinkName);
+    assert(symlinkInfo.mode);
+    assertEquals(symlinkInfo.mode & 0o777, symlinkMode);
+  }
+);
+
+unitTest({ perms: { write: true } }, async function chmodFailure(): Promise<
+  void
+> {
+  let err;
+  try {
+    const filename = "/badfile.txt";
+    await Deno.chmod(filename, 0o777);
+  } catch (e) {
+    err = e;
+  }
+  assert(err instanceof Deno.errors.NotFound);
+});
+
+unitTest({ perms: { write: false } }, async function chmodPerm(): Promise<
+  void
+> {
+  let err;
+  try {
+    await Deno.chmod("/somefile.txt", 0o777);
+  } catch (e) {
+    err = e;
+  }
+  assert(err instanceof Deno.errors.PermissionDenied);
+  assertEquals(err.name, "PermissionDenied");
+});