Test migration to jest by hand

Apparently using regular expressions is way easier.

test/clampNumber/clampNumber.test.js

@@ -1,9 +1,9 @@
 const expect = require('expect');
 const clampNumber = require('./clampNumber.js');
 
-test('Testing clampNumber', () => {
-  //For more information on all the methods supported by tape
-  //Please go to https://github.com/substack/tape
-  expect(typeof clampNumber === 'function').toBeTruthy();
-  expect(clampNumber(2, 3, 5)).toBe(3);
-});
+
+  test('clampNumber is a Function', () => {
+  expect(clampNumber).toBeInstanceOf(Function);
+});
+  t.equal(clampNumber(2, 3, 5), 3, "Clamps num within the inclusive range specified by the boundary values a and b");
+