Test migration to jest by hand

Apparently using regular expressions is way easier.

test/isTravisCI/isTravisCI.test.js

@@ -0,0 +1,17 @@
+const expect = require('expect');
+const isTravisCI = require('./isTravisCI.js');
+
+
+  test('isTravisCI is a Function', () => {
+  expect(isTravisCI).toBeInstanceOf(Function);
+});
+  if(isTravisCI())
+    test('Running on Travis, correctly evaluates', () => {
+  expect(isTravisCI()).toBeTruthy();
+});
+  else
+    test('Not running on Travis, correctly evaluates', () => {
+  expect(isTravisCI()).toBeFalsy();
+});
+  
+