1 files changed, 24 insertions, 0 deletions
diff --git a/std/flags/dotted_test.ts b/std/flags/dotted_test.ts
new file mode 100755
index 000000000..3ec7409e7
--- /dev/null
+++ b/std/flags/dotted_test.ts
@@ -0,0 +1,24 @@
+// Copyright 2018-2019 the Deno authors. All rights reserved. MIT license.
+import { test } from "../testing/mod.ts";
+import { assertEquals } from "../testing/asserts.ts";
+import { parse } from "./mod.ts";
+
+test(function dottedAlias(): void {
+  const argv = parse(["--a.b", "22"], {
+    default: { "a.b": 11 },
+    alias: { "a.b": "aa.bb" }
+  });
+  assertEquals(argv.a.b, 22);
+  assertEquals(argv.aa.bb, 22);
+});
+
+test(function dottedDefault(): void {
+  const argv = parse([], { default: { "a.b": 11 }, alias: { "a.b": "aa.bb" } });
+  assertEquals(argv.a.b, 11);
+  assertEquals(argv.aa.bb, 11);
+});
+
+test(function dottedDefaultWithNoAlias(): void {
+  const argv = parse([], { default: { "a.b": 11 } });
+  assertEquals(argv.a.b, 11);
+});