[Android] Move content/browser/{renderer_host => android}/java/*

content/browser/renderer_host/java/jni_helper_unittest.cc

-// Copyright 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "content/browser/renderer_host/java/jni_helper.h"
-
-#include "base/android/jni_android.h"
-#include "base/at_exit.h"
-#include "base/logging.h"
-#include "testing/gtest/include/gtest/gtest.h"
-
-namespace content {
-
-namespace {
-
-const char kJavaLangObject[] = "java/lang/Object";
-const char kGetClass[] = "getClass";
-const char kToString[] = "toString";
-const char kReturningJavaLangClass[] = "()Ljava/lang/Class;";
-const char kReturningJavaLangString[] = "()Ljava/lang/String;";
-
-const char* g_last_method;
-const char* g_last_jni_signature;
-jmethodID g_last_method_id;
-
-const JNINativeInterface* g_previous_functions;
-
-jmethodID GetMethodIDWrapper(JNIEnv* env, jclass clazz, const char* method,
-                             const char* jni_signature) {
-  g_last_method = method;
-  g_last_jni_signature = jni_signature;
-  g_last_method_id = g_previous_functions->GetMethodID(env, clazz, method,
-                                                       jni_signature);
-  return g_last_method_id;
-}
-
-}  // namespace
-
-class JNIAndroidTest : public testing::Test {
- protected:
-  virtual void SetUp() {
-    JNIEnv* env = base::android::AttachCurrentThread();
-    g_previous_functions = env->functions;
-    hooked_functions = *g_previous_functions;
-    env->functions = &hooked_functions;
-    hooked_functions.GetMethodID = &GetMethodIDWrapper;
-  }
-
-  virtual void TearDown() {
-    JNIEnv* env = base::android::AttachCurrentThread();
-    env->functions = g_previous_functions;
-    Reset();
-  }
-
-  void Reset() {
-    g_last_method = 0;
-    g_last_jni_signature = 0;
-    g_last_method_id = NULL;
-  }
-  // Needed to cleanup the cached method map in the implementation between
-  // runs (e.g. if using --gtest_repeat)
-  base::ShadowingAtExitManager exit_manager;
-  // From JellyBean release, the instance of this struct provided in JNIEnv is
-  // read-only, so we deep copy it to allow individual functions to be hooked.
-  JNINativeInterface hooked_functions;
-};
-
-TEST_F(JNIAndroidTest, GetMethodIDFromClassNameCaching) {
-  JNIEnv* env = base::android::AttachCurrentThread();
-
-  Reset();
-  jmethodID id1 = GetMethodIDFromClassName(env, kJavaLangObject, kGetClass,
-                                           kReturningJavaLangClass);
-  EXPECT_STREQ(kGetClass, g_last_method);
-  EXPECT_STREQ(kReturningJavaLangClass, g_last_jni_signature);
-  EXPECT_EQ(g_last_method_id, id1);
-
-  Reset();
-  jmethodID id2 = GetMethodIDFromClassName(env, kJavaLangObject, kGetClass,
-                                           kReturningJavaLangClass);
-  EXPECT_STREQ(0, g_last_method);
-  EXPECT_STREQ(0, g_last_jni_signature);
-  EXPECT_EQ(NULL, g_last_method_id);
-  EXPECT_EQ(id1, id2);
-
-  Reset();
-  jmethodID id3 = GetMethodIDFromClassName(env, kJavaLangObject, kToString,
-                                           kReturningJavaLangString);
-  EXPECT_STREQ(kToString, g_last_method);
-  EXPECT_STREQ(kReturningJavaLangString, g_last_jni_signature);
-  EXPECT_EQ(g_last_method_id, id3);
-}
-
-}  // namespace content