1 files changed, 85 insertions, 0 deletions
diff --git a/cli/js/tests/symlink_test.ts b/cli/js/tests/symlink_test.ts
new file mode 100644
index 000000000..221960bb0
--- /dev/null
+++ b/cli/js/tests/symlink_test.ts
@@ -0,0 +1,85 @@
+// Copyright 2018-2020 the Deno authors. All rights reserved. MIT license.
+import { unitTest, assert, assertEquals } from "./test_util.ts";
+
+unitTest(
+  { perms: { read: true, write: true } },
+  function symlinkSyncSuccess(): void {
+    const testDir = Deno.makeTempDirSync();
+    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) {
+      assertEquals(Deno.build.os, "win");
+      assertEquals(errOnWindows.message, "Not implemented");
+    } else {
+      const newNameInfoLStat = Deno.lstatSync(newname);
+      const newNameInfoStat = Deno.statSync(newname);
+      assert(newNameInfoLStat.isSymlink());
+      assert(newNameInfoStat.isDirectory());
+    }
+  }
+);
+
+unitTest(function symlinkSyncPerm(): void {
+  let err;
+  try {
+    Deno.symlinkSync("oldbaddir", "newbaddir");
+  } catch (e) {
+    err = e;
+  }
+  assert(err instanceof Deno.errors.PermissionDenied);
+  assertEquals(err.name, "PermissionDenied");
+});
+
+// Just for now, until we implement symlink for Windows.
+// Symlink with type should succeed on other platforms with type ignored
+unitTest(
+  { perms: { write: true } },
+  function symlinkSyncNotImplemented(): void {
+    const testDir = Deno.makeTempDirSync();
+    const oldname = testDir + "/oldname";
+    const newname = testDir + "/newname";
+    let err;
+    try {
+      Deno.symlinkSync(oldname, newname, "dir");
+    } catch (e) {
+      err = e;
+    }
+    if (err) {
+      assertEquals(Deno.build.os, "win");
+      assertEquals(err.message, "Not implemented");
+    }
+  }
+);
+
+unitTest(
+  { perms: { read: true, write: true } },
+  async function symlinkSuccess(): Promise<void> {
+    const testDir = Deno.makeTempDirSync();
+    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) {
+      assertEquals(errOnWindows.message, "Not implemented");
+    } else {
+      const newNameInfoLStat = Deno.lstatSync(newname);
+      const newNameInfoStat = Deno.statSync(newname);
+      assert(newNameInfoLStat.isSymlink());
+      assert(newNameInfoStat.isDirectory());
+    }
+  }
+);