Initial commit

node_modules/exponential-backoff/src/jitter/full/full.jitter.spec.ts

@@ -0,0 +1,31 @@
+import { fullJitter } from './full.jitter';
+
+describe(`Testing ${fullJitter.name}`, () => {
+    const delay = 100;
+    
+    function arrayWith5FullJitterDelays() {
+        return Array(5).fill(delay).map(fullJitter)
+    }
+
+    describe(`when calling #fullJitter on the same delay multiple times`, () => {
+        it('all the delays are greater than or equal to 0', () => {
+            arrayWith5FullJitterDelays()
+            .forEach(value => expect(value).toBeGreaterThanOrEqual(0));
+        })
+
+        it('all the delays are less than or equal to the original delay', () => {
+            arrayWith5FullJitterDelays()
+            .forEach(value => expect(value).toBeLessThanOrEqual(delay));
+        })
+
+        it('the delays are not equal to one another', () => {
+            const delays = arrayWith5FullJitterDelays();
+            expect(new Set(delays).size).not.toBe(1);
+        })
+
+        it('the delays are integers', () => {
+            arrayWith5FullJitterDelays()
+            .forEach(value => expect(Number.isInteger(value)).toBe(true))
+        })
+    })
+})