1 files changed, 142 insertions, 0 deletions
diff --git a/cli/js/chmod_test.ts b/cli/js/chmod_test.ts
new file mode 100644
index 000000000..420f4f313
--- /dev/null
+++ b/cli/js/chmod_test.ts
@@ -0,0 +1,142 @@
+// Copyright 2018-2019 the Deno authors. All rights reserved. MIT license.
+import { testPerm, assertEquals } from "./test_util.ts";
+
+const isNotWindows = Deno.build.os !== "win";
+
+testPerm({ 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, { perm: 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);
+    assertEquals(fileInfo.mode & 0o777, 0o777);
+  }
+});
+
+// Check symlink when not on windows
+if (isNotWindows) {
+  testPerm(
+    { 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, { perm: 0o666 });
+      const symlinkName = tempDir + "/test_symlink.txt";
+      Deno.symlinkSync(filename, symlinkName);
+
+      let symlinkInfo = Deno.lstatSync(symlinkName);
+      const symlinkMode = symlinkInfo.mode & 0o777; // platform dependent
+
+      Deno.chmodSync(symlinkName, 0o777);
+
+      // Change actual file mode, not symlink
+      const fileInfo = Deno.statSync(filename);
+      assertEquals(fileInfo.mode & 0o777, 0o777);
+      symlinkInfo = Deno.lstatSync(symlinkName);
+      assertEquals(symlinkInfo.mode & 0o777, symlinkMode);
+    }
+  );
+}
+
+testPerm({ write: true }, function chmodSyncFailure(): void {
+  let err;
+  try {
+    const filename = "/badfile.txt";
+    Deno.chmodSync(filename, 0o777);
+  } catch (e) {
+    err = e;
+  }
+  assertEquals(err.kind, Deno.ErrorKind.NotFound);
+  assertEquals(err.name, "NotFound");
+});
+
+testPerm({ write: false }, function chmodSyncPerm(): void {
+  let err;
+  try {
+    Deno.chmodSync("/somefile.txt", 0o777);
+  } catch (e) {
+    err = e;
+  }
+  assertEquals(err.kind, Deno.ErrorKind.PermissionDenied);
+  assertEquals(err.name, "PermissionDenied");
+});
+
+testPerm({ 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, { perm: 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);
+    assertEquals(fileInfo.mode & 0o777, 0o777);
+  }
+});
+
+// Check symlink when not on windows
+if (isNotWindows) {
+  testPerm(
+    { 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, { perm: 0o666 });
+      const symlinkName = tempDir + "/test_symlink.txt";
+      Deno.symlinkSync(filename, symlinkName);
+
+      let symlinkInfo = Deno.lstatSync(symlinkName);
+      const symlinkMode = symlinkInfo.mode & 0o777; // platform dependent
+
+      await Deno.chmod(symlinkName, 0o777);
+
+      // Just change actual file mode, not symlink
+      const fileInfo = Deno.statSync(filename);
+      assertEquals(fileInfo.mode & 0o777, 0o777);
+      symlinkInfo = Deno.lstatSync(symlinkName);
+      assertEquals(symlinkInfo.mode & 0o777, symlinkMode);
+    }
+  );
+}
+
+testPerm({ write: true }, async function chmodFailure(): Promise<void> {
+  let err;
+  try {
+    const filename = "/badfile.txt";
+    await Deno.chmod(filename, 0o777);
+  } catch (e) {
+    err = e;
+  }
+  assertEquals(err.kind, Deno.ErrorKind.NotFound);
+  assertEquals(err.name, "NotFound");
+});
+
+testPerm({ write: false }, async function chmodPerm(): Promise<void> {
+  let err;
+  try {
+    await Deno.chmod("/somefile.txt", 0o777);
+  } catch (e) {
+    err = e;
+  }
+  assertEquals(err.kind, Deno.ErrorKind.PermissionDenied);
+  assertEquals(err.name, "PermissionDenied");
+});