Merge pull request #937 from sminnee/fix-theme-test

FIX: Fixed testing of theme switching.

tests/behat/features/bootstrap/FeatureContext.php

@@ -36,6 +36,9 @@ class FeatureContext extends \SilverStripe\Framework\Test\Behaviour\FeatureConte
 		$fixtureContext->setFixtureFactory($this->getFixtureFactory());
 		$this->useContext('FixtureContext', $fixtureContext);
 
+		// Add extra contexts with more steps
+		$this->useContext('ThemeContext', new \SilverStripe\Cms\Test\Behaviour\ThemeContext($parameters));
+
 		// Use blueprints which auto-publish all subclasses of SiteTree
 		$factory = $fixtureContext->getFixtureFactory();
 		foreach(\ClassInfo::subclassesFor('SiteTree') as $id => $class) {

tests/behat/features/bootstrap/SilverStripe/Cms/Test/Behaviour/ThemeContext.php

@@ -0,0 +1,109 @@
+<?php
+
+namespace SilverStripe\Cms\Test\Behaviour;
+
+use Behat\Behat\Context\ClosuredContextInterface,
+	Behat\Behat\Context\TranslatedContextInterface,
+	Behat\Behat\Context\BehatContext,
+	Behat\Behat\Context\Step,
+	Behat\Behat\Event\StepEvent,
+	Behat\Behat\Exception\PendingException,
+	Behat\Mink\Driver\Selenium2Driver,
+	Behat\Gherkin\Node\PyStringNode,
+	Behat\Gherkin\Node\TableNode;
+
+// PHPUnit
+require_once 'PHPUnit/Autoload.php';
+require_once 'PHPUnit/Framework/Assert/Functions.php';
+
+/**
+ * Context used to create fixtures in the SilverStripe ORM.
+ */
+class ThemeContext extends BehatContext {
+
+	protected $restoreFiles = array();
+	protected $restoreDirectories = array();
+
+	/**
+	 * Create a test theme
+	 * 
+	 * @Given /^a theme "(?<theme>[^"]+)"/
+	 */
+	public function stepCreateTheme($theme) {
+		if(!preg_match('/^[0-9a-zA-Z_-]+$/', $theme)) throw new \InvalidArgumentException("Bad theme '$theme'");
+
+		$this->requireDir(BASE_PATH . '/themes');
+		$this->requireDir(BASE_PATH . '/themes/' . $theme);
+		$this->requireDir(BASE_PATH . '/themes/' . $theme . '/templates');
+	}
+
+	/**
+	 * Create a template within a test theme
+	 * 
+	 * @Given /^a template "(?<template>[^"]+)" in theme "(?<theme>[^"]+)" with content "(?<content>[^"]+)"/
+	 */
+	public function stepCreateTemplate($template, $theme, $content) {
+		if(!preg_match('/^[0-9a-zA-Z_-]+$/', $theme)) throw new \InvalidArgumentException("Bad theme '$theme'");
+		if(!preg_match('/^(Layout\/)?[0-9a-zA-Z_-]+\.ss$/', $template)) throw new \InvalidArgumentException("Bad template '$template'");
+
+		$this->stepCreateTheme($theme);
+		$this->requireFile(BASE_PATH . '/themes/' . $theme . '/templates/' . $template, $content);
+	}
+
+	protected function requireFile($filename, $content) {
+		// Already exists
+		if(file_exists($filename)) {
+			// If the content is different, remember old content for restoration
+			$origContent = file_get_contents($filename);
+			if($origContent != $content) {
+				file_put_contents($filename, $content);
+				$this->restoreFiles[$filename] = $origContent;
+			}
+		// Doesn't exist, mark it for deletion after test
+		} else {
+			file_put_contents($filename, $content);
+			$this->restoreFiles[$filename] = null;
+		}
+	}
+
+	protected function requireDir($dirname) {
+		// Directory doesn't exist, create it and mark it for deletion
+		if(!file_exists($dirname)) {
+			mkdir($dirname);
+			$this->restoreDirectories[] = $dirname;
+		}
+	}
+
+	/**
+	 * Clean up any theme manipulation
+	 * 
+	 * @AfterScenario
+	 */
+	public function cleanThemesAfterScenario() {
+		// Restore any created/modified files.
+		//  - If modified, revert then to original contnet
+		//  - If created, delete them
+		if($this->restoreFiles) {
+			foreach($this->restoreFiles as $file => $origContent) {
+				if($origContent === null) {
+					unlink($file);
+				} else {
+					file_put_contents($file, $origContent);
+				}
+			}
+
+			$this->restoreFiles = array();
+		}
+
+		// Restore any created directories: that is, delete them
+		if($this->restoreDirectories) {
+			// Flip the order so that nested direcotires are unlinked() first
+			$this->restoreDirectories = array_reverse($this->restoreDirectories);
+			foreach($this->restoreDirectories as $dir) {
+				rmdir($dir);
+			}
+
+			$this->restoreDirectories = array();
+		}
+	}
+}

tests/behat/features/settings-main.feature

@@ -25,12 +25,13 @@ Feature: Edit site wide settings
 		And I should see "Site is under construction"
 
 	Scenario: I can change the theme of the website
-		Given I should see an edit page form
+		Given a theme "behattest"
+		And a template "Page.ss" in theme "behattest" with content "<h1>This is the behat test theme</h1>"
+		When I go to "/admin/settings"
+		Then I should see an edit page form
 		And I should see "Theme"
 
-		When I select "tutorial" from "Theme"
+		When I select "behattest" from "Theme"
 		And I press the "Save" button
-		And I reload the page
-
-		When I go to "/home"
-		Then I should see "Visit www.silverstripe.com to download the CMS"
+		And I go to "/home?flush=1"
+		Then I should see "This is the behat test theme"