diff --git a/packages/asset-swapper/test/rfq_maker_blacklist_test.ts b/packages/asset-swapper/test/rfq_maker_blacklist_test.ts
new file mode 100644
index 0000000000..50a1f5d01d
--- /dev/null
+++ b/packages/asset-swapper/test/rfq_maker_blacklist_test.ts
@@ -0,0 +1,40 @@
+import * as chai from 'chai';
+import 'mocha';
+
+import { constants } from '../src/constants';
+import { RfqMakerBlacklist } from '../src/utils/rfq_maker_blacklist';
+
+import { chaiSetup } from './utils/chai_setup';
+
+chaiSetup.configure();
+const expect = chai.expect;
+
+describe('RfqMakerBlacklist', () => {
+    it('does blacklist', async () => {
+        const blacklistDurationMinutes = 1;
+        const timeoutStreakThreshold = 3;
+        const blacklist = new RfqMakerBlacklist(blacklistDurationMinutes, timeoutStreakThreshold);
+        blacklist.logTimeoutOrLackThereof('makerA', true);
+        blacklist.logTimeoutOrLackThereof('makerA', true);
+        expect(blacklist.isMakerBlacklisted('makerA')).to.be.false();
+        blacklist.logTimeoutOrLackThereof('makerA', true);
+        const sleepTimeMs = 10;
+        await new Promise<void>(r => {
+            setTimeout(r, sleepTimeMs);
+        });
+        expect(blacklist.isMakerBlacklisted('makerA')).to.be.true();
+    });
+    it('does unblacklist', async () => {
+        const blacklistDurationMinutes = 0.1;
+        const timeoutStreakThreshold = 3;
+        const blacklist = new RfqMakerBlacklist(blacklistDurationMinutes, timeoutStreakThreshold);
+        blacklist.logTimeoutOrLackThereof('makerA', true);
+        blacklist.logTimeoutOrLackThereof('makerA', true);
+        blacklist.logTimeoutOrLackThereof('makerA', true);
+        expect(blacklist.isMakerBlacklisted('makerA')).to.be.true();
+        await new Promise<void>(r => {
+            setTimeout(r, blacklistDurationMinutes * constants.ONE_MINUTE_MS);
+        });
+        expect(blacklist.isMakerBlacklisted('makerA')).to.be.false();
+    });
+});