feat: rename all test files to include .test.js postfix

test/Contactable.test.js

@@ -0,0 +1,30 @@
+
+const assertRevert = require('./helpers/assertRevert');
+
+var Contactable = artifacts.require('../contracts/ownership/Contactable.sol');
+
+contract('Contactable', function (accounts) {
+  let contactable;
+
+  beforeEach(async function () {
+    contactable = await Contactable.new();
+  });
+
+  it('should have an empty contact info', async function () {
+    let info = await contactable.contactInformation();
+    assert.isTrue(info == '');
+  });
+
+  describe('after setting the contact information', function () {
+    let contactInfo = 'contact information';
+
+    beforeEach(async function () {
+      await contactable.setContactInformation(contactInfo);
+    });
+
+    it('should return the setted contact information', async function () {
+      let info = await contactable.contactInformation();
+      assert.isTrue(info === contactInfo);
+    });
+  });
+});