diff --git a/core/modules/locale/tests/modules/locale_test/locale_test.module b/core/modules/locale/tests/modules/locale_test/locale_test.module
index 2688296892..4a0a786445 100644
--- a/core/modules/locale/tests/modules/locale_test/locale_test.module
+++ b/core/modules/locale/tests/modules/locale_test/locale_test.module
@@ -26,6 +26,15 @@ function locale_test_system_info_alter(&$info, Extension $file, $type) {
       $info['hidden'] = FALSE;
     }
   }
+
+  // Alter the name and the core version of the project. This should not affect
+  // the locale project information.
+  if (\Drupal::state()->get('locale.test_system_info_alter_name_core')) {
+    if ($file->getName() == 'locale_test') {
+      $info['core'] = '8.6.7';
+      $info['name'] = 'locale_test_alter';
+    }
+  }
 }
 
 /**
diff --git a/core/modules/locale/tests/src/Kernel/LocaleBuildTest.php b/core/modules/locale/tests/src/Kernel/LocaleBuildTest.php
new file mode 100644
index 0000000000..c1abda8c8e
--- /dev/null
+++ b/core/modules/locale/tests/src/Kernel/LocaleBuildTest.php
@@ -0,0 +1,64 @@
+<?php
+
+namespace Drupal\Tests\locale\Kernel;
+
+use Drupal\KernelTests\KernelTestBase;
+
+/**
+ * Tests building the translatable project information.
+ *
+ * @group locale
+ */
+class LocaleBuildTest extends KernelTestBase {
+
+  /**
+   * {@inheritdoc}
+   */
+  protected static $modules = [
+    'locale',
+    'locale_test',
+    'system',
+  ];
+
+  /**
+   * Checks if a list of translatable projects gets built .
+   */
+  public function testBuildProjects() {
+    $this->container->get('module_handler')->loadInclude('locale', 'compare.inc');
+    /** @var \Drupal\Core\Extension\ExtensionList $module_list */
+    $module_list = \Drupal::service('extension.list.module');
+
+    // Make the test modules look like a normal custom module. I.e. make the
+    // modules not hidden. locale_test_system_info_alter() modifies the project
+    // info of the locale_test and locale_test_translate modules.
+    \Drupal::state()->set('locale.test_system_info_alter', TRUE);
+
+    // Confirm the project name and core value before the module is altered.
+    $projects = locale_translation_build_projects();
+    $this->assertSame('locale_test', $projects['locale_test']->name);
+    $this->assertSame('8.x', $projects['locale_test']->core);
+
+    $projects['locale_test']->langcode = 'de';
+    $this->assertSame('/8.x/locale_test/locale_test-1.2.de.po', locale_translation_build_server_pattern($projects['locale_test'], '/%core/%project/%project-%version.%language.po'));
+
+    // Alter both the name and core value of the project.
+    \Drupal::state()->set('locale.test_system_info_alter_name_core', TRUE);
+    drupal_static_reset('locale_translation_project_list');
+    $module_list->reset();
+
+    // Confirm the name and core value are changed in  $module->info.
+    $module = $module_list->get('locale_test');
+    $this->assertSame('locale_test_alter', $module->info['name']);
+    $this->assertSame('8.6.7', $module->info['core']);
+    $this->assertSame('locale_test', $module->getName());
+
+    // Confirm the name and core value are not changed in the project.
+    $projects = locale_translation_build_projects();
+    $this->assertSame('locale_test', $projects['locale_test']->name);
+    $this->assertSame('8.x', $projects['locale_test']->core);
+
+    $projects['locale_test']->langcode = 'de';
+    $this->assertSame('/8.x/locale_test/locale_test-1.2.de.po', locale_translation_build_server_pattern($projects['locale_test'], '/%core/%project/%project-%version.%language.po'));
+  }
+
+}