1 files changed, 10 insertions, 0 deletions
diff --git a/cli/js/tests/build_test.ts b/cli/js/tests/build_test.ts
new file mode 100644
index 000000000..50c7b519c
--- /dev/null
+++ b/cli/js/tests/build_test.ts
@@ -0,0 +1,10 @@
+// Copyright 2018-2020 the Deno authors. All rights reserved. MIT license.
+import { unitTest, assert } from "./test_util.ts";
+
+unitTest(function buildInfo(): void {
+  // Deno.build is injected by rollup at compile time. Here
+  // we check it has been properly transformed.
+  const { arch, os } = Deno.build;
+  assert(arch === "x64");
+  assert(os === "mac" || os === "win" || os === "linux");
+});