From e4e2c24407760d3ee2717bc2544c5bda8fa9fec6 Mon Sep 17 00:00:00 2001
From: Rune Harlyk <rune@harlyk.dk>
Date: Fri, 23 Feb 2024 12:22:00 +0100
Subject: [PATCH] =?UTF-8?q?=F0=9F=A7=AA=20Adds=20test=20for=20throttle=20c?=
 =?UTF-8?q?lass?=
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---
 app/test/specs/throttler.spec.ts | 46 ++++++++++++++++++++++++++++++++
 1 file changed, 46 insertions(+)
 create mode 100644 app/test/specs/throttler.spec.ts

diff --git a/app/test/specs/throttler.spec.ts b/app/test/specs/throttler.spec.ts
new file mode 100644
index 0000000..ec89eac
--- /dev/null
+++ b/app/test/specs/throttler.spec.ts
@@ -0,0 +1,46 @@
+import { throttler } from '../../src/lib/utilities';
+import { describe, it, expect, beforeEach, afterEach, test, vitest } from 'vitest';
+
+describe('throttler', () => {
+  let throttleInstance: throttler;
+  let callback
+
+  beforeEach(() => {
+    vitest.useFakeTimers();
+    throttleInstance = new throttler();
+    callback = vitest.fn();
+  });
+
+  afterEach(() => {
+    vitest.useRealTimers();
+  });
+
+  it('should call the callback function after the specified time', () => {
+    throttleInstance.throttle(callback, 1000);
+    expect(callback).not.toHaveBeenCalled();
+
+    vitest.advanceTimersByTime(1000);
+    expect(callback).toHaveBeenCalledTimes(1);
+  });
+
+  it('should not call the callback function if throttle is called again within the timeout period', () => {
+    throttleInstance.throttle(callback, 1000);
+    throttleInstance.throttle(callback, 1000);
+
+    vitest.advanceTimersByTime(500);
+    expect(callback).not.toHaveBeenCalled();
+
+    vitest.advanceTimersByTime(500);
+    expect(callback).toHaveBeenCalledTimes(1);
+  });
+
+  it('should allow the callback to be called again after the timeout period', () => {
+    throttleInstance.throttle(callback, 1000);
+    vitest.advanceTimersByTime(1000);
+    expect(callback).toHaveBeenCalledTimes(1);
+
+    throttleInstance.throttle(callback, 1000);
+    vitest.advanceTimersByTime(1000);
+    expect(callback).toHaveBeenCalledTimes(2);
+  });
+});
\ No newline at end of file