test: add valid drupal hookmap test

Author: bduranleau-nr

tests/integration/frameworks/drupal/mock_module_handler_valid.php

@@ -0,0 +1,34 @@
+<?php
+/*
+ * Copyright 2020 New Relic Corporation. All rights reserved.
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+/* Verify agent behavior on valid hookImplementationsMap */
+
+namespace Drupal\Core\Extension {
+  interface ModuleHandlerInterface
+  {
+    public function invokeAllWith($hook_str, $callback);
+  }
+  class ModuleHandler implements ModuleHandlerInterface
+  {
+    protected array $hookImplementationsMap = array(
+      'hookname' => array('classname' => array('methodname' => 'modulename')),
+      'hookname_b' => array('classname_b' => array('methodname_b' => 'modulename_b')),
+      'hookname_c' => array('classname_c' => array('methodname_c' => 'modulename_c')),
+    );
+
+    // to avoid editor warnings
+    public function invokeAllWith($hook_str, $callback)
+    {
+      return null;
+    }
+
+    // for debugging purposes
+    public function dump()
+    {
+      var_dump($this->hookImplementationsMap);
+    }
+  }
+}

tests/integration/frameworks/drupal/test_hook_implementations_map_valid.php

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+<?php
+/*
+ * Copyright 2020 New Relic Corporation. All rights reserved.
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+/*DESCRIPTION
+Verify agent behavior on valid hookImplementationsMap
+*/
+
+/*INI
+newrelic.framework = drupal8
+*/
+
+/*EXPECT_TRACED_ERRORS null */
+
+/*EXPECT_ERROR_EVENTS null */
+
+/*EXPECT
+*/
+
+require_once __DIR__ . '/mock_module_handler_valid.php';
+
+// This specific API is needed for us to instrument the ModuleHandler
+class Drupal
+{
+  public function moduleHandler()
+  {
+    return new Drupal\Core\Extension\ModuleHandler();
+  }
+}
+
+// Create module handler
+$drupal = new Drupal();
+$handler = $drupal->moduleHandler();