add more tests (#26)

* added more tests

* (fix) no cpu profile.

__tests__/functions/Random.js

@@ -0,0 +1,19 @@
+require('module-alias/register');
+
+const { Random } = require('@dsabot/Random');
+
+it('should return with no min or max value', () => {
+    expect(Random.int()).toBeUndefined();
+});
+it('call for use should return true', () => {
+    expect(Random.use(null)).toBeTruthy();
+});
+it('should return between 1 and 2', () => {
+    expect(Random.int(1, 2)).toBeGreaterThanOrEqual(1);
+});
+it('should return between 1 and 2', () => {
+    expect(Random.int(1, 2)).toBeLessThanOrEqual(2);
+});
+it('should return exactly 1', () => {
+    expect(Random.int(1, 1)).toBe(1);
+});