Migrated tests to jest

Used jest-codemods to migrate, will have to pass everything by hand before we can merge.

test3/isObject/isObject.test.js

@@ -0,0 +1,13 @@
+const expect = require('expect');
+const isObject = require('./isObject.js');
+
+test('Testing isObject', () => {
+  //For more information on all the methods supported by tape
+  //Please go to https://github.com/substack/tape
+  expect(typeof isObject === 'function').toBeTruthy();
+
+  expect(isObject([1, 2, 3, 4])).toBeTruthy();
+  expect(isObject([])).toBeTruthy();
+  expect(isObject({ a:1 })).toBeTruthy();
+  expect(isObject(true)).toBeFalsy();
+});