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node_modules/bellajs/src/utils/random.test.js

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+// random.test
+
+/* eslint-env jest */
+
+import { randint, genid } from './random.js'
+
+describe('test .randint() method:', () => {
+  const randArr = []
+  while (randArr.length < 20) {
+    randArr.push(randint())
+  }
+  test(`test .randint() after ${randArr.length} times`, () => {
+    expect(randArr).toHaveLength(20)
+    const uniqVal = Array.from(new Set(randArr))
+    expect(uniqVal.length).toBeGreaterThan(10)
+  })
+
+  test('test .randint() with same min/max', () => {
+    const q = randint(10, 10)
+    expect(q).toEqual(10)
+  })
+
+  const min = 50
+  const max = 80
+  test(`test .randint() between ${min} - ${max}`, () => {
+    for (let i = 0; i < 100; i++) {
+      const q = randint(min, max)
+      expect(q).toBeGreaterThanOrEqual(min)
+      expect(q).toBeLessThanOrEqual(max)
+    }
+  })
+})
+
+describe('test .genid() method:', () => {
+  test('check .genid() default param', () => {
+    const actual = genid()
+    expect(actual).toHaveLength(32)
+  })
+
+  test('check .genid(512)', () => {
+    const actual = genid(512)
+    expect(actual).toHaveLength(512)
+  })
+
+  const len = 100
+  const ids = []
+  while (ids.length < len) {
+    ids.push(genid())
+  }
+  const uniques = Array.from(new Set(ids))
+  test('check .genid() always return unique string', () => {
+    expect(ids).toHaveLength(len)
+    expect(uniques).toHaveLength(ids.length)
+  })
+})