Initial Commit

test/strings/WhenGeneratingRandomStrings.test.ts

@@ -0,0 +1,39 @@
+import {describe, beforeAll, it, expect} from 'bun:test';
+import {Strings} from '../../src/strings';
+
+const randomStringCount = 11;
+
+describe('When generating random strings', () => {
+  it('generates a random string', () => {
+    const randomString = Strings.random();
+
+    expect(typeof randomString).toBe('string');
+    expect(randomString.length).toBeGreaterThan(0);
+  });
+
+  describe('Given a length argument', () => {
+    const length = 4;
+
+    it('generates a random string of the given length', () => {
+      const randomString = Strings.random(length);
+
+      expect(typeof randomString).toBe('string');
+      expect(randomString.length).toBeGreaterThan(0);
+      expect(randomString.length).toBe(length);
+    });
+  });
+
+  describe(`Given [${randomStringCount}] are generated`, () => {
+    let randomStrings;
+
+    beforeAll(() => {
+      randomStrings = Array.from({length: randomStringCount}, () => Strings.random());
+    });
+
+    it('generates random strings such that no strings are identical', () => {
+      const uniqueRandomStrings = new Set(randomStrings);
+
+      expect(uniqueRandomStrings.size).toBe(randomStringCount);
+    });
+  });
+});