Implement deno.symlink() (#742)

1 files changed, 71 insertions, 0 deletions

diff --git a/js/symlink_test.ts b/js/symlink_test.ts
new file mode 100644
index 000000000..a3203ac6e
--- /dev/null
+++ b/js/symlink_test.ts
@@ -0,0 +1,71 @@
+// Copyright 2018 the Deno authors. All rights reserved. MIT license.
+import { test, testPerm, assert, assertEqual } from "./test_util.ts";
+import * as deno from "deno";
+
+testPerm({ write: true }, function symlinkSyncSuccess() {
+  const testDir = deno.makeTempDirSync() + "/test-symlink-sync";
+  const oldname = testDir + "/oldname";
+  const newname = testDir + "/newname";
+  deno.mkdirSync(oldname);
+  let errOnWindows;
+  // Just for now, until we implement symlink for Windows.
+  try {
+    deno.symlinkSync(oldname, newname);
+  } catch (e) {
+    errOnWindows = e;
+  }
+  if (errOnWindows) {
+    assertEqual(errOnWindows.kind, deno.ErrorKind.Other);
+    assertEqual(errOnWindows.message, "Not implemented");
+  } else {
+    const newNameInfoLStat = deno.lstatSync(newname);
+    const newNameInfoStat = deno.statSync(newname);
+    assert(newNameInfoLStat.isSymlink());
+    assert(newNameInfoStat.isDirectory());
+  }
+});
+
+testPerm({ write: false }, function symlinkSyncPerm() {
+  let err;
+  try {
+    deno.symlinkSync("oldbaddir", "newbaddir");
+  } catch (e) {
+    err = e;
+  }
+  assertEqual(err.kind, deno.ErrorKind.PermissionDenied);
+  assertEqual(err.name, "PermissionDenied");
+});
+
+// Just for now, until we implement symlink for Windows.
+testPerm({ write: true }, function symlinkSyncNotImplemented() {
+  let err;
+  try {
+    deno.symlinkSync("oldname", "newname", "dir");
+  } catch (e) {
+    err = e;
+  }
+  assertEqual(err.message, "Not implemented");
+});
+
+testPerm({ write: true }, async function symlinkSuccess() {
+  const testDir = deno.makeTempDirSync() + "/test-symlink";
+  const oldname = testDir + "/oldname";
+  const newname = testDir + "/newname";
+  deno.mkdirSync(oldname);
+  let errOnWindows;
+  // Just for now, until we implement symlink for Windows.
+  try {
+    await deno.symlink(oldname, newname);
+  } catch (e) {
+    errOnWindows = e;
+  }
+  if (errOnWindows) {
+    assertEqual(errOnWindows.kind, deno.ErrorKind.Other);
+    assertEqual(errOnWindows.message, "Not implemented");
+  } else {
+    const newNameInfoLStat = deno.lstatSync(newname);
+    const newNameInfoStat = deno.statSync(newname);
+    assert(newNameInfoLStat.isSymlink());
+    assert(newNameInfoStat.isDirectory());
+  }
+});