Add test for drupal-composer#57.

tests/HandlerTest.php

@@ -0,0 +1,165 @@
+<?php
+
+/**
+ * @file
+ * Contains \DrupalComposer\DrupalScaffold\Tests\PluginTest.
+ */
+
+namespace DrupalComposer\DrupalScaffold\Tests;
+
+use Composer\Util\Filesystem;
+
+/**
+ * Tests composer plugin functionality.
+ */
+class HandlerTest extends \PHPUnit_Framework_TestCase {
+
+  /**
+   * @var \Composer\Util\Filesystem
+   */
+  protected $fs;
+
+  /**
+   * @var string
+   */
+  protected $tmpDir;
+
+  /**
+   * @var string
+   */
+  protected $rootDir;
+
+  /**
+   * @var string
+   */
+  protected $tmpReleaseTag;
+
+  /**
+   * SetUp test
+   */
+  public function setUp() {
+    $this->rootDir = realpath(realpath(__DIR__ . '/..'));
+
+    // Prepare temp directory.
+    $this->fs = new Filesystem();
+    $this->tmpDir = realpath(sys_get_temp_dir()) . DIRECTORY_SEPARATOR . 'drupal-scaffold';
+    $this->ensureDirectoryExistsAndClear($this->tmpDir);
+
+    $this->writeTestReleaseTag();
+    $this->writeComposerJSON();
+
+    chdir($this->tmpDir);
+  }
+
+  /**
+   * tearDown
+   *
+   * @return void
+   */
+  public function tearDown()
+  {
+    $this->fs->removeDirectory($this->tmpDir);
+    $this->git(sprintf('tag -d "%s"', $this->tmpReleaseTag));
+  }
+
+  /**
+   * Tests that files for dev environments are downloaded only in dev mode.
+   */
+  public function testDevFiles() {
+    $exampleScaffoldFile = $this->tmpDir . DIRECTORY_SEPARATOR . 'index.php';
+    $developmentScaffoldFile = $this->tmpDir . DIRECTORY_SEPARATOR . 'sites' . DIRECTORY_SEPARATOR . 'development.services.yml';
+    $this->assertFileNotExists($exampleScaffoldFile, 'Scaffold file should not exist.');
+    $this->assertFileNotExists($developmentScaffoldFile, 'Development scaffold file should not exist.');
+    $this->composer('install --no-dev');
+    $this->assertFileExists($exampleScaffoldFile, 'Scaffold file should exist.');
+    $this->assertFileNotExists($developmentScaffoldFile, 'Development scaffold file should not exist.');
+    $this->composer('drupal-scaffold');
+    $this->assertFileExists($exampleScaffoldFile, 'Scaffold file should exist.');
+    $this->assertFileExists($developmentScaffoldFile, 'Development scaffold file should exist.');
+  }
+
+  /**
+   * Writes the default composer json to the temp direcoty.
+   */
+  protected function writeComposerJSON() {
+    $json = json_encode($this->composerJSONDefaults(), JSON_PRETTY_PRINT);
+    // Write composer.json.
+    file_put_contents($this->tmpDir . '/composer.json', $json);
+  }
+
+  /**
+   * Writes a tag for the current commit, so we can reference it directly in the
+   * composer.json.
+   */
+  protected function writeTestReleaseTag() {
+    // Tag the current state.
+    $this->tmpReleaseTag = '999.0.' . time();
+    $this->git(sprintf('tag -a "%s" -m "%s"', $this->tmpReleaseTag, 'Tag for testing this exact commit'));
+  }
+
+  /**
+   * Provides the default composer.json data.
+   *
+   * @return array
+   */
+  protected function composerJSONDefaults() {
+    return array(
+      'repositories' => array(
+        array(
+          'type' => 'vcs',
+          'url' => $this->rootDir,
+        )
+      ),
+      'require' => array(
+        'drupal-composer/drupal-scaffold' => $this->tmpReleaseTag,
+        'composer/installers' => '^1.0.20',
+        'drupal/core' => '8.0.0',
+      ),
+      'scripts' => array(
+        'drupal-scaffold' =>  'DrupalComposer\\DrupalScaffold\\Plugin::scaffold'
+      ),
+      'minimum-stability' => 'dev',
+      'prefer-stable' => true,
+    );
+  }
+
+  /**
+   * Wrapper for the composer command.
+   *
+   * @param string $command
+   *   Composer command name, arguments and/or options
+   */
+  protected function composer($command) {
+    chdir($this->tmpDir);
+    passthru(escapeshellcmd($this->rootDir . '/vendor/bin/composer ' . $command), $exit_code);
+    if ($exit_code !== 0) {
+      throw new \Exception('Composer returned a non-zero exit code');
+    }
+  }
+
+  /**
+   * Wrapper for git command in the root directory.
+   *
+   * @param $command
+   *   Git command name, arguments and/or options.
+   */
+  protected function git($command) {
+    chdir($this->rootDir);
+    passthru(escapeshellcmd('git ' . $command), $exit_code);
+    if ($exit_code !== 0) {
+      throw new \Exception('Git returned a non-zero exit code');
+    }
+  }
+
+  /**
+   * Makes sure the given directory exists and has no content.
+   *
+   * @param string $directory
+   */
+  protected function ensureDirectoryExistsAndClear($directory) {
+    if (is_dir($directory)) {
+      $this->fs->removeDirectory($directory);
+    }
+    mkdir($directory, 0777, true);
+  }
+}