1 files changed, 60 insertions, 0 deletions
diff --git a/std/testing/bench_test.ts b/std/testing/bench_test.ts
new file mode 100644
index 000000000..8af2f0d6d
--- /dev/null
+++ b/std/testing/bench_test.ts
@@ -0,0 +1,60 @@
+import { test, runIfMain } from "./mod.ts";
+import { bench, runBenchmarks } from "./bench.ts";
+
+import "./bench_example.ts";
+
+test(async function benching(): Promise<void> {
+  bench(function forIncrementX1e9(b): void {
+    b.start();
+    for (let i = 0; i < 1e9; i++);
+    b.stop();
+  });
+
+  bench(function forDecrementX1e9(b): void {
+    b.start();
+    for (let i = 1e9; i > 0; i--);
+    b.stop();
+  });
+
+  bench(async function forAwaitFetchDenolandX10(b): Promise<void> {
+    b.start();
+    for (let i = 0; i < 10; i++) {
+      const r = await fetch("https://deno.land/");
+      await r.text();
+    }
+    b.stop();
+  });
+
+  bench(async function promiseAllFetchDenolandX10(b): Promise<void> {
+    const urls = new Array(10).fill("https://deno.land/");
+    b.start();
+    await Promise.all(
+      urls.map(
+        async (denoland: string): Promise<void> => {
+          const r = await fetch(denoland);
+          await r.text();
+        }
+      )
+    );
+    b.stop();
+  });
+
+  bench({
+    name: "runs100ForIncrementX1e6",
+    runs: 100,
+    func(b): void {
+      b.start();
+      for (let i = 0; i < 1e6; i++);
+      b.stop();
+    }
+  });
+
+  bench(function throwing(b): void {
+    b.start();
+    // Throws bc the timer's stop method is never called
+  });
+
+  await runBenchmarks({ skip: /throw/ });
+});
+
+runIfMain(import.meta);