Write some tests

retry-backoff/retry-backoff.test.ts

@@ -0,0 +1,39 @@
+import { run } from "npm:[email protected]";
+import { describe, it } from "bdd";
+import { expect } from "expect";
+import { useRetryWithBackoff } from "./retry-backoff.ts"
+
+describe("RetryBackoff", () => {
+  it("retries operation and returns output if operation finishes on time", async () => {
+    await run(function* () {
+      let attempts = 0;
+      let result = 0;
+      yield* useRetryWithBackoff(function* () {
+        if (attempts < 2) {
+          attempts++;
+          throw new Error("operation failed");
+        } else {
+          result = 1;
+        }
+      }, { timeout: 2_000 });
+      expect(attempts).toBe(2);
+      expect(result).toBe(1);
+    })
+  });
+
+  it("retries operation and handles timeout when operation exceeds limit", async () => {
+    await run(function* () {
+      let attempts = 0;
+      let result = 0;
+      yield* useRetryWithBackoff(function* () {
+        if (attempts < 2) {
+          attempts++;
+          throw new Error("operation failed");
+        } else {
+          result = 1;
+        }
+      }, { timeout: 500 });
+      expect(result).toBe(0);
+    })
+  });
+});