Fix parallel testing (denoland/deno_std#309)

Fixes denoland/deno_std#308

Co-authored by @chiefbiiko
Original: https://github.com/denoland/deno_std/commit/cac060f3882ba5df2e0e641350b33ef771c8ee44

1 files changed, 9 insertions, 1 deletions

diff --git a/testing/main.ts b/testing/main.ts
index 077d662ee..00502b237 100644
--- a/testing/main.ts
+++ b/testing/main.ts
@@ -1,3 +1,11 @@
 // Copyright 2018-2019 the Deno authors. All rights reserved. MIT license.
 import { runTests } from "./mod.ts";
-runTests();
+
+async function main() {
+  // Testing entire test suite serially
+  await runTests();
+  // Testing parallel execution on a subset that does not depend on exec order
+  await runTests({ parallel: true, only: /^testing/ });
+}
+
+main();