Add .env support.

RoboFile.php

@@ -1,4 +1,8 @@
 <?php
+
+$dotenv = new Dotenv\Dotenv(__DIR__);
+$dotenv->load();
+
 class RoboFile extends \Robo\Tasks {
   function install() {
     $this->_exec('./composer.phar install');
@@ -6,35 +10,31 @@ class RoboFile extends \Robo\Tasks {
   }
 
   function update() {
+    $this->say(getenv('WP_TEST_URL'));
     $this->_exec('./composer.phar update');
     $this->_exec('npm update');
   }
 
+  function watch() {
+    $this->_exec('./node_modules/stylus/bin/stylus -u nib -w assets/css/src/admin.styl -o assets/css/');
+  }
+
   function testUnit() {
     $this->_exec('vendor/bin/codecept run unit');
   }
 
-  function testAcceptanceConfig() {
-    // create config file from sample unless a config file alread exists
-    return $this->_copy(
-      'tests/acceptance.suite.yml.sample',
-      'tests/acceptance.suite.yml',
-      true
-    );
-  }
-
   function testAcceptance() {
-    if($this->testAcceptanceConfig()) {
-      $this
-        ->taskExec('phantomjs --webdriver=4444')
-        ->background()
-        ->run();
-      sleep(2);
-      $this->_exec('vendor/bin/codecept run acceptance');
-    }
+    $this->loadEnv();
+    $this
+      ->taskExec('phantomjs --webdriver=4444')
+      ->background()
+      ->run();
+    sleep(2);
+    $this->_exec('vendor/bin/codecept run acceptance');
   }
 
   function testAll() {
+    $this->loadEnv();
     $this
       ->taskexec('phantomjs --webdriver=4444')
       ->background()
@@ -43,7 +43,10 @@ class RoboFile extends \Robo\Tasks {
     $this->_exec('vendor/bin/codecept run');
   }
 
-  function watch() {
-    $this->_exec('./node_modules/stylus/bin/stylus -u nib -w assets/css/src/admin.styl -o assets/css/');
+  function loadEnv() {
+    $this->taskReplaceInFile('tests/acceptance.suite.yml')
+      ->regex("/url.*/")
+      ->to('url: ' . "'" . getenv('WP_TEST_URL'). "'")
+      ->run();
   }
 }