Ensure to squelch intentional warnings in tests.

Author: Robert Jackson

tests/create-tests.js

@@ -2,12 +2,17 @@
 
 const DebugToolsPlugin = require('..');
 const fs = require('fs');
+const CONSOLE = Object.assign({}, console);
 
 function createTests(options) {
   const babelVersion = options.babelVersion;
   const presets = options.presets;
   const transform = options.transform;
 
+  afterEach(function() {
+    Object.assign(console, CONSOLE);
+  });
+
   describe('Feature Flags', function() {
     const h = transformTestHelper({
       presets,
@@ -154,6 +159,10 @@ function createTests(options) {
   });
 
   describe('ember-cli-babel default configuration (legacy config API)', function() {
+    beforeEach(function() {
+      console.warn = () => {}; // eslint-disable-line
+    });
+
     let h = transformTestHelper({
       presets,
       plugins: [

tests/normalize-options-test.js

@@ -3,7 +3,16 @@
 const normalizeOptions = require('../src/utils/normalize-options').normalizeOptions;
 
 describe('normalizeOptions', function() {
+  let originalConsole = Object.assign({}, console);
+
+  afterEach(function() {
+    Object.assign(console, originalConsole);
+  });
+
   it('converts "old style" options into the newer style (with deprecation)', function() {
+    let warnings = [];
+    console.warn = warning => warnings.push(warning); // eslint-disable-line
+
     let actual = normalizeOptions({
       envFlags: {
         source: '@ember/env-flags',
@@ -39,6 +48,9 @@ describe('normalizeOptions', function() {
     };
 
     expect(actual).toEqual(expected);
+    expect(warnings).toEqual([
+      'babel-plugin-debug-macros configuration API has changed, please update your configuration',
+    ]);
   });
 
   it('sets flag to false when svelte version matches the flag version', function() {