move tests around to facilitate registering babel based on environment

mocha.coverage.opts

@@ -2,4 +2,4 @@
 --require reify
  --recursive
 ./**/__test__.js
-test/*.js
+test/*/index.js

mocha.opts

@@ -1,4 +1 @@
---require reify
+test/test.js
---recursive
-./**/__test__.js
-test/*.js

package.json

@@ -44,9 +44,17 @@
   },
   "devDependencies": {
     "acorn": "^4.0.4",
+    "babel": "^6.23.0",
+    "babel-core": "^6.23.1",
     "babel-plugin-istanbul": "^3.0.0",
-    "babel-plugin-transform-es2015-modules-commonjs": "^6.18.0",
+    "babel-plugin-transform-es2015-arrow-functions": "^6.22.0",
-    "babel-register": "^6.18.0",
+    "babel-plugin-transform-es2015-block-scoping": "^6.23.0",
+    "babel-plugin-transform-es2015-destructuring": "^6.23.0",
+    "babel-plugin-transform-es2015-modules-commonjs": "^6.23.0",
+    "babel-plugin-transform-es2015-parameters": "^6.23.0",
+    "babel-plugin-transform-es2015-spread": "^6.22.0",
+    "babel-preset-env": "^1.2.1",
+    "babel-register": "^6.23.0",
     "codecov": "^1.0.1",
     "console-group": "^0.3.2",
     "css-tree": "^1.0.0-alpha16",
@@ -54,6 +62,7 @@
     "eslint-plugin-import": "^2.2.0",
     "estree-walker": "^0.3.0",
     "fuzzyset.js": "0.0.1",
+    "glob": "^7.1.1",
     "jsdom": "^9.9.1",
     "locate-character": "^2.0.0",
     "mocha": "^3.2.0",
@@ -78,6 +87,11 @@
   },
   "babel": {
     "plugins": [
+      "transform-es2015-arrow-functions",
+      "transform-es2015-block-scoping",
+      "transform-es2015-spread",
+      "transform-es2015-parameters",
+      "transform-es2015-destructuring",
       "transform-es2015-modules-commonjs"
     ]
   }

test/formats/index.js

@@ -1,6 +1,6 @@
-import deindent from '../src/utils/deindent.js';
+import deindent from '../../src/utils/deindent.js';
 import assert from 'assert';
-import { svelte, env, setupHtmlEqual } from './helpers.js';
+import { svelte, env, setupHtmlEqual } from '../helpers.js';
 
 function testAmd ( code, expectedId, dependencies, html ) {
 	const fn = new Function( 'define', code );

test/generator/index.js

@@ -1,10 +1,11 @@
-import spaces from '../src/utils/spaces.js';
+import spaces from '../../src/utils/spaces.js';
 import assert from 'assert';
 import * as path from 'path';
 import * as fs from 'fs';
 import * as acorn from 'acorn';
+import * as babel from 'babel-core';
 
-import { addLineNumbers, loadConfig, svelte, env, setupHtmlEqual } from './helpers.js';
+import { addLineNumbers, loadConfig, svelte, env, setupHtmlEqual } from '../helpers.js';
 
 let showCompiledCode = false;
 let compileOptions = null;
@@ -14,12 +15,18 @@ function getName ( filename ) {
 	return base[0].toUpperCase() + base.slice( 1 );
 }
 
+const nodeVersionMatch = /^v(\d)/.exec( process.version );
+const legacy = +nodeVersionMatch[1] < 6;
+const babelrc = require( '../../package.json' ).babel;
+
 require.extensions[ '.html' ] = function ( module, filename ) {
 	const options = Object.assign({ filename, name: getName( filename ) }, compileOptions );
-	const { code } = svelte.compile( fs.readFileSync( filename, 'utf-8' ), options );
+	let { code } = svelte.compile( fs.readFileSync( filename, 'utf-8' ), options );
 
 	if ( showCompiledCode ) console.log( addLineNumbers( code ) ); // eslint-disable-line no-console
 
+	if ( legacy ) code = babel.transform( code, babelrc ).code;
+
 	return module._compile( code, filename );
 };
 
@@ -29,7 +36,7 @@ describe( 'generate', () => {
 	function runTest ( dir, shared ) {
 		if ( dir[0] === '.' ) return;
 
-		const config = loadConfig( `./generator/${dir}/_config.js` );
+		const config = loadConfig( `./generator/samples/${dir}/_config.js` );
 
 		if ( config.solo && process.env.CI ) {
 			throw new Error( 'Forgot to remove `solo: true` from test' );
@@ -44,7 +51,7 @@ describe( 'generate', () => {
 			compileOptions.dev = config.dev;
 
 			try {
-				const source = fs.readFileSync( `test/generator/${dir}/main.html`, 'utf-8' );
+				const source = fs.readFileSync( `test/generator/samples/${dir}/main.html`, 'utf-8' );
 				compiled = svelte.compile( source, compileOptions );
 			} catch ( err ) {
 				if ( config.compileError ) {
@@ -76,7 +83,7 @@ describe( 'generate', () => {
 			let SvelteComponent;
 
 			try {
-				SvelteComponent = require( `./generator/${dir}/main.html` ).default;
+				SvelteComponent = require( `./samples/${dir}/main.html` ).default;
 			} catch ( err ) {
 				if ( !config.show ) console.log( addLineNumbers( code ) ); // eslint-disable-line no-console
 				throw err;
@@ -126,13 +133,13 @@ describe( 'generate', () => {
 	}
 
 	describe( 'inline helpers', () => {
-		fs.readdirSync( 'test/generator' ).forEach( dir => {
+		fs.readdirSync( 'test/generator/samples' ).forEach( dir => {
 			runTest( dir, null );
 		});
 	});
 
 	describe( 'shared helpers', () => {
-		fs.readdirSync( 'test/generator' ).forEach( dir => {
+		fs.readdirSync( 'test/generator/samples' ).forEach( dir => {
 			runTest( dir, path.resolve( 'shared.js' ) );
 		});
 	});