From db78bbbce24b100ca6774e6152c0d726fa782bc5 Mon Sep 17 00:00:00 2001
From: Florent Torregrosa <florent.torregrosa@gmail.com>
Date: Fri, 20 Mar 2020 18:38:55 +0100
Subject: [PATCH] Add test for the behavior when using composer install with an
 existing composer.lock.

---
 tests/PluginTest.php | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/tests/PluginTest.php b/tests/PluginTest.php
index 7014fea..d39ee25 100644
--- a/tests/PluginTest.php
+++ b/tests/PluginTest.php
@@ -68,6 +68,7 @@ public function tearDown() {
   public function testComposerInstallAndUpdate() {
     $version = '8.3.0';
     $translations_directory = $this->tmpDir . DIRECTORY_SEPARATOR . 'translations' . DIRECTORY_SEPARATOR . 'contrib';
+    $core_directory = $this->tmpDir . DIRECTORY_SEPARATOR . 'core';
     $fr_translation_file = $translations_directory . DIRECTORY_SEPARATOR . 'drupal-' . $version . '.fr.po';
     $es_translation_file = $translations_directory . DIRECTORY_SEPARATOR . 'drupal-' . $version . '.es.po';
 
@@ -84,6 +85,13 @@ public function testComposerInstallAndUpdate() {
     $this->composer('drupal:l10n');
     $this->assertFileExists($fr_translation_file, 'French translations file was downloaded by custom command.');
 
+    // We remove a downloaded file and a package, so we can check the file was
+    // downloaded after the command install has been executed.
+    $this->fs->remove($fr_translation_file);
+    $this->fs->removeDirectory($core_directory);
+    $this->composer('install');
+    $this->assertFileExists($fr_translation_file, 'French translations file should exist.');
+
     // Test downloading a new version of the translations.
     $version = '8.3.1';
     $fr_translation_file = $translations_directory . DIRECTORY_SEPARATOR . 'drupal-' . $version . '.fr.po';