Android: split golden content from jni_generator_tests.

base/android/jni_generator/jni_generator_tests.py

 #!/usr/bin/env python
 # Copyright (c) 2012 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.
 
 """Tests for jni_generator.py.
 
 This test suite contains various tests for the JNI generator.
 It exercises the low-level parser all the way up to the
 code generator and ensures the output matches a golden
 file.
 """
 
 import difflib
+import inspect
 import os
 import sys
 import unittest
 import jni_generator
 from jni_generator import CalledByNative, JniParams, NativeMethod, Param
 
 
 SCRIPT_NAME = 'base/android/jni_generator/jni_generator.py'
 
 
@@ skipping 32 matching lines @@
     stripped_golden = [l.strip() for l in golden_text.split('\n')]
     stripped_generated = [l.strip() for l in generated_text.split('\n')]
     if stripped_golden != stripped_generated:
       print self.id()
       for line in difflib.context_diff(stripped_golden, stripped_generated):
         print line
       print '\n\nGenerated'
       print '=' * 80
       print generated_text
       print '=' * 80
-      self.fail('Golden text mismatch')
+      print 'Run with:'
+      print 'REBASELINE=1', sys.argv[0]
+      print 'to regenerate the data files.'
+      self.fail('Golden text mismatch.')
+
+  def _ReadGoldenFile(self, golden_file):
+    if not os.path.exists(golden_file):
+      return None
+    with file(golden_file, 'r') as f:
+      return f.read()
+
+  def assertGoldenTextEquals(self, generated_text):
+    script_dir = os.path.dirname(sys.argv[0])
+    caller = inspect.stack()[1][3]
+    golden_file = os.path.join(script_dir, caller + '.golden')
+    golden_text = self._ReadGoldenFile(golden_file)
+    if os.environ.get('REBASELINE'):
+      if golden_text != generated_text:
+        with file(golden_file, 'w') as f:
+          f.write(generated_text)
+      return
+    self.assertTextEquals(golden_text, generated_text)
 
   def testNatives(self):
     test_data = """"
     interface OnFrameAvailableListener {}
     private native int nativeInit();
     private native void nativeDestroy(int nativeChromeBrowserProvider);
     private native long nativeAddBookmark(
             int nativeChromeBrowserProvider,
             String url, String title, boolean isFolder, long parentId);
     private static native String nativeGetDomainAndRegistry(String url);
@@ skipping 134 matching lines @@
                              Param(datatype='double',
                                    name='gamma'),
                             ],
                      java_class_name=None,
                      type='method',
                      p0_type='content::DataFetcherImplAndroid'),
     ]
     self.assertListEquals(golden_natives, natives)
     h = jni_generator.InlHeaderFileGenerator('', 'org/chromium/TestJni',
                                              natives, [], TestOptions())
-    golden_content = """\
-// Copyright (c) 2012 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.
-
-// This file is autogenerated by
-//     base/android/jni_generator/jni_generator.py
-// For
-//     org/chromium/TestJni
-
-#ifndef org_chromium_TestJni_JNI
-#define org_chromium_TestJni_JNI
-
-#include <jni.h>
-
-#include "base/android/jni_android.h"
-#include "base/android/scoped_java_ref.h"
-#include "base/basictypes.h"
-#include "base/logging.h"
-
-using base::android::ScopedJavaLocalRef;
-
-// Step 1: forward declarations.
-namespace {
-const char kTestJniClassPath[] = "org/chromium/TestJni";
-// Leaking this jclass as we cannot use LazyInstance from some threads.
-jclass g_TestJni_clazz = NULL;
-}  // namespace
-
-static jint Init(JNIEnv* env, jobject obj);
-
-static jstring GetDomainAndRegistry(JNIEnv* env, jclass clazz,
-    jstring url);
-
-static void CreateHistoricalTabFromState(JNIEnv* env, jclass clazz,
-    jbyteArray state,
-    jint tab_index);
-
-static jbyteArray GetStateAsByteArray(JNIEnv* env, jobject obj,
-    jobject view);
-
-static jobjectArray GetAutofillProfileGUIDs(JNIEnv* env, jclass clazz);
-
-static void SetRecognitionResults(JNIEnv* env, jobject obj,
-    jint sessionId,
-    jobjectArray results);
-
-static jint FindAll(JNIEnv* env, jobject obj,
-    jstring find);
-
-static jobject GetInnerClass(JNIEnv* env, jclass clazz);
-
-// Step 2: method stubs.
-static void Destroy(JNIEnv* env, jobject obj,
-    jint nativeChromeBrowserProvider) {
-  DCHECK(nativeChromeBrowserProvider) << "Destroy";
-  ChromeBrowserProvider* native =
-      reinterpret_cast<ChromeBrowserProvider*>(nativeChromeBrowserProvider);
-  return native->Destroy(env, obj);
-}
-
-static jlong AddBookmark(JNIEnv* env, jobject obj,
-    jint nativeChromeBrowserProvider,
-    jstring url,
-    jstring title,
-    jboolean isFolder,
-    jlong parentId) {
-  DCHECK(nativeChromeBrowserProvider) << "AddBookmark";
-  ChromeBrowserProvider* native =
-      reinterpret_cast<ChromeBrowserProvider*>(nativeChromeBrowserProvider);
-  return native->AddBookmark(env, obj, url, title, isFolder, parentId);
-}
-
-static jlong AddBookmarkFromAPI(JNIEnv* env, jobject obj,
-    jint nativeChromeBrowserProvider,
-    jstring url,
-    jobject created,
-    jobject isBookmark,
-    jobject date,
-    jbyteArray favicon,
-    jstring title,
-    jobject visits) {
-  DCHECK(nativeChromeBrowserProvider) << "AddBookmarkFromAPI";
-  ChromeBrowserProvider* native =
-      reinterpret_cast<ChromeBrowserProvider*>(nativeChromeBrowserProvider);
-  return native->AddBookmarkFromAPI(env, obj, url, created, isBookmark, date,
-      favicon, title, visits);
-}
-
-static jobject QueryBitmap(JNIEnv* env, jobject obj,
-    jint nativeChromeBrowserProvider,
-    jobjectArray projection,
-    jstring selection,
-    jobjectArray selectionArgs,
-    jstring sortOrder) {
-  DCHECK(nativeChromeBrowserProvider) << "QueryBitmap";
-  ChromeBrowserProvider* native =
-      reinterpret_cast<ChromeBrowserProvider*>(nativeChromeBrowserProvider);
-  return native->QueryBitmap(env, obj, projection, selection, selectionArgs,
-      sortOrder).Release();
-}
-
-static void GotOrientation(JNIEnv* env, jobject obj,
-    jint nativeDataFetcherImplAndroid,
-    jdouble alpha,
-    jdouble beta,
-    jdouble gamma) {
-  DCHECK(nativeDataFetcherImplAndroid) << "GotOrientation";
-  DataFetcherImplAndroid* native =
-      reinterpret_cast<DataFetcherImplAndroid*>(nativeDataFetcherImplAndroid);
-  return native->GotOrientation(env, obj, alpha, beta, gamma);
-}
-
-// Step 3: RegisterNatives.
-
-static bool RegisterNativesImpl(JNIEnv* env) {
-
-  g_TestJni_clazz = reinterpret_cast<jclass>(env->NewGlobalRef(
-      base::android::GetClass(env, kTestJniClassPath).obj()));
-  static const JNINativeMethod kMethodsTestJni[] = {
-    { "nativeInit",
-"("
-")"
-"I", reinterpret_cast<void*>(Init) },
-    { "nativeDestroy",
-"("
-"I"
-")"
-"V", reinterpret_cast<void*>(Destroy) },
-    { "nativeAddBookmark",
-"("
-"I"
-"Ljava/lang/String;"
-"Ljava/lang/String;"
-"Z"
-"J"
-")"
-"J", reinterpret_cast<void*>(AddBookmark) },
-    { "nativeGetDomainAndRegistry",
-"("
-"Ljava/lang/String;"
-")"
-"Ljava/lang/String;", reinterpret_cast<void*>(GetDomainAndRegistry) },
-    { "nativeCreateHistoricalTabFromState",
-"("
-"[B"
-"I"
-")"
-"V", reinterpret_cast<void*>(CreateHistoricalTabFromState) },
-    { "nativeGetStateAsByteArray",
-"("
-"Landroid/view/View;"
-")"
-"[B", reinterpret_cast<void*>(GetStateAsByteArray) },
-    { "nativeGetAutofillProfileGUIDs",
-"("
-")"
-"[Ljava/lang/String;", reinterpret_cast<void*>(GetAutofillProfileGUIDs) },
-    { "nativeSetRecognitionResults",
-"("
-"I"
-"[Ljava/lang/String;"
-")"
-"V", reinterpret_cast<void*>(SetRecognitionResults) },
-    { "nativeAddBookmarkFromAPI",
-"("
-"I"
-"Ljava/lang/String;"
-"Ljava/lang/Long;"
-"Ljava/lang/Boolean;"
-"Ljava/lang/Long;"
-"[B"
-"Ljava/lang/String;"
-"Ljava/lang/Integer;"
-")"
-"J", reinterpret_cast<void*>(AddBookmarkFromAPI) },
-    { "nativeFindAll",
-"("
-"Ljava/lang/String;"
-")"
-"I", reinterpret_cast<void*>(FindAll) },
-    { "nativeGetInnerClass",
-"("
-")"
-"Lorg/chromium/example/jni_generator/SampleForTests$OnFrameAvailableListener;",
-    reinterpret_cast<void*>(GetInnerClass) },
-    { "nativeQueryBitmap",
-"("
-"I"
-"[Ljava/lang/String;"
-"Ljava/lang/String;"
-"[Ljava/lang/String;"
-"Ljava/lang/String;"
-")"
-"Landroid/graphics/Bitmap;", reinterpret_cast<void*>(QueryBitmap) },
-    { "nativeGotOrientation",
-"("
-"I"
-"D"
-"D"
-"D"
-")"
-"V", reinterpret_cast<void*>(GotOrientation) },
-  };
-  const int kMethodsTestJniSize = arraysize(kMethodsTestJni);
-
-  if (env->RegisterNatives(g_TestJni_clazz,
-                           kMethodsTestJni,
-                           kMethodsTestJniSize) < 0) {
-    LOG(ERROR) << "RegisterNatives failed in " << __FILE__;
-    return false;
-  }
-
-  return true;
-}
-
-#endif  // org_chromium_TestJni_JNI
-"""
-    self.assertTextEquals(golden_content, h.GetContent())
+    self.assertGoldenTextEquals(h.GetContent())
 
   def testInnerClassNatives(self):
     test_data = """
     class MyInnerClass {
       @NativeCall("MyInnerClass")
       private native int nativeInit();
     }
     """
     natives = jni_generator.ExtractNatives(test_data, 'int')
     golden_natives = [
         NativeMethod(return_type='int', static=False,
                      name='Init', params=[],
                      java_class_name='MyInnerClass',
                      type='function')
     ]
     self.assertListEquals(golden_natives, natives)
     h = jni_generator.InlHeaderFileGenerator('', 'org/chromium/TestJni',
                                              natives, [], TestOptions())
-    golden_content = """\
-// Copyright (c) 2012 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.
-
-// This file is autogenerated by
-//     base/android/jni_generator/jni_generator.py
-// For
-//     org/chromium/TestJni
-
-#ifndef org_chromium_TestJni_JNI
-#define org_chromium_TestJni_JNI
-
-#include <jni.h>
-
-#include "base/android/jni_android.h"
-#include "base/android/scoped_java_ref.h"
-#include "base/basictypes.h"
-#include "base/logging.h"
-
-using base::android::ScopedJavaLocalRef;
-
-// Step 1: forward declarations.
-namespace {
-const char kTestJniClassPath[] = "org/chromium/TestJni";
-const char kMyInnerClassClassPath[] = "org/chromium/TestJni$MyInnerClass";
-// Leaking this jclass as we cannot use LazyInstance from some threads.
-jclass g_TestJni_clazz = NULL;
-}  // namespace
-
-static jint Init(JNIEnv* env, jobject obj);
-
-// Step 2: method stubs.
-
-// Step 3: RegisterNatives.
-
-static bool RegisterNativesImpl(JNIEnv* env) {
-
-  g_TestJni_clazz = reinterpret_cast<jclass>(env->NewGlobalRef(
-      base::android::GetClass(env, kTestJniClassPath).obj()));
-  static const JNINativeMethod kMethodsMyInnerClass[] = {
-    { "nativeInit",
-"("
-")"
-"I", reinterpret_cast<void*>(Init) },
-  };
-  const int kMethodsMyInnerClassSize = arraysize(kMethodsMyInnerClass);
-
-  if (env->RegisterNatives(g_MyInnerClass_clazz,
-                           kMethodsMyInnerClass,
-                           kMethodsMyInnerClassSize) < 0) {
-    LOG(ERROR) << "RegisterNatives failed in " << __FILE__;
-    return false;
-  }
-
-  return true;
-}
-
-#endif  // org_chromium_TestJni_JNI
-"""
-    self.assertTextEquals(golden_content, h.GetContent())
+    self.assertGoldenTextEquals(h.GetContent())
 
   def testInnerClassNativesMultiple(self):
     test_data = """
     class MyInnerClass {
       @NativeCall("MyInnerClass")
       private native int nativeInit();
     }
     class MyOtherInnerClass {
       @NativeCall("MyOtherInnerClass")
       private native int nativeInit();
     }
     """
     natives = jni_generator.ExtractNatives(test_data, 'int')
     golden_natives = [
         NativeMethod(return_type='int', static=False,
                      name='Init', params=[],
                      java_class_name='MyInnerClass',
                      type='function'),
         NativeMethod(return_type='int', static=False,
                      name='Init', params=[],
                      java_class_name='MyOtherInnerClass',
                      type='function')
     ]
     self.assertListEquals(golden_natives, natives)
     h = jni_generator.InlHeaderFileGenerator('', 'org/chromium/TestJni',
                                              natives, [], TestOptions())
-    golden_content = """\
-// Copyright (c) 2012 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.
-
-// This file is autogenerated by
-//     base/android/jni_generator/jni_generator.py
-// For
-//     org/chromium/TestJni
-
-#ifndef org_chromium_TestJni_JNI
-#define org_chromium_TestJni_JNI
-
-#include <jni.h>
-
-#include "base/android/jni_android.h"
-#include "base/android/scoped_java_ref.h"
-#include "base/basictypes.h"
-#include "base/logging.h"
-
-using base::android::ScopedJavaLocalRef;
-
-// Step 1: forward declarations.
-namespace {
-const char kMyOtherInnerClassClassPath[] =
-    "org/chromium/TestJni$MyOtherInnerClass";
-const char kTestJniClassPath[] = "org/chromium/TestJni";
-const char kMyInnerClassClassPath[] = "org/chromium/TestJni$MyInnerClass";
-// Leaking this jclass as we cannot use LazyInstance from some threads.
-jclass g_TestJni_clazz = NULL;
-}  // namespace
-
-static jint Init(JNIEnv* env, jobject obj);
-
-static jint Init(JNIEnv* env, jobject obj);
-
-// Step 2: method stubs.
-
-// Step 3: RegisterNatives.
-
-static bool RegisterNativesImpl(JNIEnv* env) {
-
-  g_TestJni_clazz = reinterpret_cast<jclass>(env->NewGlobalRef(
-      base::android::GetClass(env, kTestJniClassPath).obj()));
-  static const JNINativeMethod kMethodsMyOtherInnerClass[] = {
-    { "nativeInit",
-"("
-")"
-"I", reinterpret_cast<void*>(Init) },
-  };
-  const int kMethodsMyOtherInnerClassSize =
-      arraysize(kMethodsMyOtherInnerClass);
-
-  if (env->RegisterNatives(g_MyOtherInnerClass_clazz,
-                           kMethodsMyOtherInnerClass,
-                           kMethodsMyOtherInnerClassSize) < 0) {
-    LOG(ERROR) << "RegisterNatives failed in " << __FILE__;
-    return false;
-  }
-
-  static const JNINativeMethod kMethodsMyInnerClass[] = {
-    { "nativeInit",
-"("
-")"
-"I", reinterpret_cast<void*>(Init) },
-  };
-  const int kMethodsMyInnerClassSize = arraysize(kMethodsMyInnerClass);
-
-  if (env->RegisterNatives(g_MyInnerClass_clazz,
-                           kMethodsMyInnerClass,
-                           kMethodsMyInnerClassSize) < 0) {
-    LOG(ERROR) << "RegisterNatives failed in " << __FILE__;
-    return false;
-  }
-
-  return true;
-}
-
-#endif  // org_chromium_TestJni_JNI
-"""
-    self.assertTextEquals(golden_content, h.GetContent())
+    self.assertGoldenTextEquals(h.GetContent())
 
   def testInnerClassNativesBothInnerAndOuter(self):
     test_data = """
     class MyOuterClass {
       private native int nativeInit();
       class MyOtherInnerClass {
         @NativeCall("MyOtherInnerClass")
         private native int nativeInit();
       }
     }
     """
     natives = jni_generator.ExtractNatives(test_data, 'int')
     golden_natives = [
         NativeMethod(return_type='int', static=False,
                      name='Init', params=[],
                      java_class_name=None,
                      type='function'),
         NativeMethod(return_type='int', static=False,
                      name='Init', params=[],
                      java_class_name='MyOtherInnerClass',
                      type='function')
     ]
     self.assertListEquals(golden_natives, natives)
     h = jni_generator.InlHeaderFileGenerator('', 'org/chromium/TestJni',
                                              natives, [], TestOptions())
-    golden_content = """\
-// Copyright (c) 2012 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.
-
-// This file is autogenerated by
-//     base/android/jni_generator/jni_generator.py
-// For
-//     org/chromium/TestJni
-
-#ifndef org_chromium_TestJni_JNI
-#define org_chromium_TestJni_JNI
-
-#include <jni.h>
-
-#include "base/android/jni_android.h"
-#include "base/android/scoped_java_ref.h"
-#include "base/basictypes.h"
-#include "base/logging.h"
-
-using base::android::ScopedJavaLocalRef;
-
-// Step 1: forward declarations.
-namespace {
-const char kMyOtherInnerClassClassPath[] =
-    "org/chromium/TestJni$MyOtherInnerClass";
-const char kTestJniClassPath[] = "org/chromium/TestJni";
-// Leaking this jclass as we cannot use LazyInstance from some threads.
-jclass g_TestJni_clazz = NULL;
-}  // namespace
-
-static jint Init(JNIEnv* env, jobject obj);
-
-static jint Init(JNIEnv* env, jobject obj);
-
-// Step 2: method stubs.
-
-// Step 3: RegisterNatives.
-
-static bool RegisterNativesImpl(JNIEnv* env) {
-
-  g_TestJni_clazz = reinterpret_cast<jclass>(env->NewGlobalRef(
-      base::android::GetClass(env, kTestJniClassPath).obj()));
-  static const JNINativeMethod kMethodsMyOtherInnerClass[] = {
-    { "nativeInit",
-"("
-")"
-"I", reinterpret_cast<void*>(Init) },
-  };
-  const int kMethodsMyOtherInnerClassSize =
-      arraysize(kMethodsMyOtherInnerClass);
-
-  if (env->RegisterNatives(g_MyOtherInnerClass_clazz,
-                           kMethodsMyOtherInnerClass,
-                           kMethodsMyOtherInnerClassSize) < 0) {
-    LOG(ERROR) << "RegisterNatives failed in " << __FILE__;
-    return false;
-  }
-
-  static const JNINativeMethod kMethodsTestJni[] = {
-    { "nativeInit",
-"("
-")"
-"I", reinterpret_cast<void*>(Init) },
-  };
-  const int kMethodsTestJniSize = arraysize(kMethodsTestJni);
-
-  if (env->RegisterNatives(g_TestJni_clazz,
-                           kMethodsTestJni,
-                           kMethodsTestJniSize) < 0) {
-    LOG(ERROR) << "RegisterNatives failed in " << __FILE__;
-    return false;
-  }
-
-  return true;
-}
-
-#endif  // org_chromium_TestJni_JNI
-"""
-    self.assertTextEquals(golden_content, h.GetContent())
+    self.assertGoldenTextEquals(h.GetContent())
 
   def testCalledByNatives(self):
     test_data = """"
     import android.graphics.Bitmap;
     import android.view.View;
     import java.io.InputStream;
     import java.util.List;
 
     class InnerClass {}
 
@@ skipping 289 matching lines @@
             java_class_name='',
             params=[],
             env_call=('Void', ''),
             unchecked=False,
         ),
     ]
     self.assertListEquals(golden_called_by_natives, called_by_natives)
     h = jni_generator.InlHeaderFileGenerator('', 'org/chromium/TestJni',
                                              [], called_by_natives,
                                              TestOptions())
-    golden_content = """\
-// Copyright (c) 2012 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.
-
-// This file is autogenerated by
-//     base/android/jni_generator/jni_generator.py
-// For
-//     org/chromium/TestJni
-
-#ifndef org_chromium_TestJni_JNI
-#define org_chromium_TestJni_JNI
-
-#include <jni.h>
-
-#include "base/android/jni_android.h"
-#include "base/android/scoped_java_ref.h"
-#include "base/basictypes.h"
-#include "base/logging.h"
-
-using base::android::ScopedJavaLocalRef;
-
-// Step 1: forward declarations.
-namespace {
-const char kTestJniClassPath[] = "org/chromium/TestJni";
-const char kInfoBarClassPath[] = "org/chromium/TestJni$InfoBar";
-// Leaking this jclass as we cannot use LazyInstance from some threads.
-jclass g_TestJni_clazz = NULL;
-// Leaking this jclass as we cannot use LazyInstance from some threads.
-jclass g_InfoBar_clazz = NULL;
-}  // namespace
-
-// Step 2: method stubs.
-
-static base::subtle::AtomicWord g_TestJni_showConfirmInfoBar = 0;
-static ScopedJavaLocalRef<jobject> Java_TestJni_showConfirmInfoBar(JNIEnv* env,
-    jobject obj, jint nativeInfoBar,
-    jstring buttonOk,
-    jstring buttonCancel,
-    jstring title,
-    jobject icon) {
-  /* Must call RegisterNativesImpl()  */
-  DCHECK(g_TestJni_clazz);
-  jmethodID method_id =
-      base::android::MethodID::LazyGet<
-      base::android::MethodID::TYPE_INSTANCE>(
-      env, g_TestJni_clazz,
-      "showConfirmInfoBar",
-
-"("
-"I"
-"Ljava/lang/String;"
-"Ljava/lang/String;"
-"Ljava/lang/String;"
-"Landroid/graphics/Bitmap;"
-")"
-"Lorg/chromium/Foo$InnerClass;",
-      &g_TestJni_showConfirmInfoBar);
-
-  jobject ret =
-    env->CallObjectMethod(obj,
-      method_id, nativeInfoBar, buttonOk, buttonCancel, title, icon);
-  base::android::CheckException(env);
-  return ScopedJavaLocalRef<jobject>(env, ret);
-}
-
-static base::subtle::AtomicWord g_TestJni_showAutoLoginInfoBar = 0;
-static ScopedJavaLocalRef<jobject> Java_TestJni_showAutoLoginInfoBar(JNIEnv*
-    env, jobject obj, jint nativeInfoBar,
-    jstring realm,
-    jstring account,
-    jstring args) {
-  /* Must call RegisterNativesImpl()  */
-  DCHECK(g_TestJni_clazz);
-  jmethodID method_id =
-      base::android::MethodID::LazyGet<
-      base::android::MethodID::TYPE_INSTANCE>(
-      env, g_TestJni_clazz,
-      "showAutoLoginInfoBar",
-
-"("
-"I"
-"Ljava/lang/String;"
-"Ljava/lang/String;"
-"Ljava/lang/String;"
-")"
-"Lorg/chromium/Foo$InnerClass;",
-      &g_TestJni_showAutoLoginInfoBar);
-
-  jobject ret =
-    env->CallObjectMethod(obj,
-      method_id, nativeInfoBar, realm, account, args);
-  base::android::CheckException(env);
-  return ScopedJavaLocalRef<jobject>(env, ret);
-}
-
-static base::subtle::AtomicWord g_InfoBar_dismiss = 0;
-static void Java_InfoBar_dismiss(JNIEnv* env, jobject obj) {
-  /* Must call RegisterNativesImpl()  */
-  DCHECK(g_InfoBar_clazz);
-  jmethodID method_id =
-      base::android::MethodID::LazyGet<
-      base::android::MethodID::TYPE_INSTANCE>(
-      env, g_InfoBar_clazz,
-      "dismiss",
-
-"("
-")"
-"V",
-      &g_InfoBar_dismiss);
-
-  env->CallVoidMethod(obj,
-      method_id);
-  base::android::CheckException(env);
-
-}
-
-static base::subtle::AtomicWord g_TestJni_shouldShowAutoLogin = 0;
-static jboolean Java_TestJni_shouldShowAutoLogin(JNIEnv* env, jobject view,
-    jstring realm,
-    jstring account,
-    jstring args) {
-  /* Must call RegisterNativesImpl()  */
-  DCHECK(g_TestJni_clazz);
-  jmethodID method_id =
-      base::android::MethodID::LazyGet<
-      base::android::MethodID::TYPE_STATIC>(
-      env, g_TestJni_clazz,
-      "shouldShowAutoLogin",
-
-"("
-"Landroid/view/View;"
-"Ljava/lang/String;"
-"Ljava/lang/String;"
-"Ljava/lang/String;"
-")"
-"Z",
-      &g_TestJni_shouldShowAutoLogin);
-
-  jboolean ret =
-    env->CallStaticBooleanMethod(g_TestJni_clazz,
-      method_id, view, realm, account, args);
-  base::android::CheckException(env);
-  return ret;
-}
-
-static base::subtle::AtomicWord g_TestJni_openUrl = 0;
-static ScopedJavaLocalRef<jobject> Java_TestJni_openUrl(JNIEnv* env, jstring
-    url) {
-  /* Must call RegisterNativesImpl()  */
-  DCHECK(g_TestJni_clazz);
-  jmethodID method_id =
-      base::android::MethodID::LazyGet<
-      base::android::MethodID::TYPE_STATIC>(
-      env, g_TestJni_clazz,
-      "openUrl",
-
-"("
-"Ljava/lang/String;"
-")"
-"Ljava/io/InputStream;",
-      &g_TestJni_openUrl);
-
-  jobject ret =
-    env->CallStaticObjectMethod(g_TestJni_clazz,
-      method_id, url);
-  base::android::CheckException(env);
-  return ScopedJavaLocalRef<jobject>(env, ret);
-}
-
-static base::subtle::AtomicWord g_TestJni_activateHardwareAcceleration = 0;
-static void Java_TestJni_activateHardwareAcceleration(JNIEnv* env, jobject obj,
-    jboolean activated,
-    jint iPid,
-    jint iType,
-    jint iPrimaryID,
-    jint iSecondaryID) {
-  /* Must call RegisterNativesImpl()  */
-  DCHECK(g_TestJni_clazz);
-  jmethodID method_id =
-      base::android::MethodID::LazyGet<
-      base::android::MethodID::TYPE_INSTANCE>(
-      env, g_TestJni_clazz,
-      "activateHardwareAcceleration",
-
-"("
-"Z"
-"I"
-"I"
-"I"
-"I"
-")"
-"V",
-      &g_TestJni_activateHardwareAcceleration);
-
-  env->CallVoidMethod(obj,
-      method_id, activated, iPid, iType, iPrimaryID, iSecondaryID);
-  base::android::CheckException(env);
-
-}
-
-static base::subtle::AtomicWord g_TestJni_uncheckedCall = 0;
-static void Java_TestJni_uncheckedCall(JNIEnv* env, jobject obj, jint iParam) {
-  /* Must call RegisterNativesImpl()  */
-  DCHECK(g_TestJni_clazz);
-  jmethodID method_id =
-      base::android::MethodID::LazyGet<
-      base::android::MethodID::TYPE_INSTANCE>(
-      env, g_TestJni_clazz,
-      "uncheckedCall",
-
-"("
-"I"
-")"
-"V",
-      &g_TestJni_uncheckedCall);
-
-  env->CallVoidMethod(obj,
-      method_id, iParam);
-
-}
-
-static base::subtle::AtomicWord g_TestJni_returnByteArray = 0;
-static ScopedJavaLocalRef<jbyteArray> Java_TestJni_returnByteArray(JNIEnv* env,
-    jobject obj) {
-  /* Must call RegisterNativesImpl()  */
-  DCHECK(g_TestJni_clazz);
-  jmethodID method_id =
-      base::android::MethodID::LazyGet<
-      base::android::MethodID::TYPE_INSTANCE>(
-      env, g_TestJni_clazz,
-      "returnByteArray",
-
-"("
-")"
-"[B",
-      &g_TestJni_returnByteArray);
-
-  jbyteArray ret =
-    static_cast<jbyteArray>(env->CallObjectMethod(obj,
-      method_id));
-  base::android::CheckException(env);
-  return ScopedJavaLocalRef<jbyteArray>(env, ret);
-}
-
-static base::subtle::AtomicWord g_TestJni_returnBooleanArray = 0;
-static ScopedJavaLocalRef<jbooleanArray> Java_TestJni_returnBooleanArray(JNIEnv*
-    env, jobject obj) {
-  /* Must call RegisterNativesImpl()  */
-  DCHECK(g_TestJni_clazz);
-  jmethodID method_id =
-      base::android::MethodID::LazyGet<
-      base::android::MethodID::TYPE_INSTANCE>(
-      env, g_TestJni_clazz,
-      "returnBooleanArray",
-
-"("
-")"
-"[Z",
-      &g_TestJni_returnBooleanArray);
-
-  jbooleanArray ret =
-    static_cast<jbooleanArray>(env->CallObjectMethod(obj,
-      method_id));
-  base::android::CheckException(env);
-  return ScopedJavaLocalRef<jbooleanArray>(env, ret);
-}
-
-static base::subtle::AtomicWord g_TestJni_returnCharArray = 0;
-static ScopedJavaLocalRef<jcharArray> Java_TestJni_returnCharArray(JNIEnv* env,
-    jobject obj) {
-  /* Must call RegisterNativesImpl()  */
-  DCHECK(g_TestJni_clazz);
-  jmethodID method_id =
-      base::android::MethodID::LazyGet<
-      base::android::MethodID::TYPE_INSTANCE>(
-      env, g_TestJni_clazz,
-      "returnCharArray",
-
-"("
-")"
-"[C",
-      &g_TestJni_returnCharArray);
-
-  jcharArray ret =
-    static_cast<jcharArray>(env->CallObjectMethod(obj,
-      method_id));
-  base::android::CheckException(env);
-  return ScopedJavaLocalRef<jcharArray>(env, ret);
-}
-
-static base::subtle::AtomicWord g_TestJni_returnShortArray = 0;
-static ScopedJavaLocalRef<jshortArray> Java_TestJni_returnShortArray(JNIEnv*
-    env, jobject obj) {
-  /* Must call RegisterNativesImpl()  */
-  DCHECK(g_TestJni_clazz);
-  jmethodID method_id =
-      base::android::MethodID::LazyGet<
-      base::android::MethodID::TYPE_INSTANCE>(
-      env, g_TestJni_clazz,
-      "returnShortArray",
-
-"("
-")"
-"[S",
-      &g_TestJni_returnShortArray);
-
-  jshortArray ret =
-    static_cast<jshortArray>(env->CallObjectMethod(obj,
-      method_id));
-  base::android::CheckException(env);
-  return ScopedJavaLocalRef<jshortArray>(env, ret);
-}
-
-static base::subtle::AtomicWord g_TestJni_returnIntArray = 0;
-static ScopedJavaLocalRef<jintArray> Java_TestJni_returnIntArray(JNIEnv* env,
-    jobject obj) {
-  /* Must call RegisterNativesImpl()  */
-  DCHECK(g_TestJni_clazz);
-  jmethodID method_id =
-      base::android::MethodID::LazyGet<
-      base::android::MethodID::TYPE_INSTANCE>(
-      env, g_TestJni_clazz,
-      "returnIntArray",
-
-"("
-")"
-"[I",
-      &g_TestJni_returnIntArray);
-
-  jintArray ret =
-    static_cast<jintArray>(env->CallObjectMethod(obj,
-      method_id));
-  base::android::CheckException(env);
-  return ScopedJavaLocalRef<jintArray>(env, ret);
-}
-
-static base::subtle::AtomicWord g_TestJni_returnLongArray = 0;
-static ScopedJavaLocalRef<jlongArray> Java_TestJni_returnLongArray(JNIEnv* env,
-    jobject obj) {
-  /* Must call RegisterNativesImpl()  */
-  DCHECK(g_TestJni_clazz);
-  jmethodID method_id =
-      base::android::MethodID::LazyGet<
-      base::android::MethodID::TYPE_INSTANCE>(
-      env, g_TestJni_clazz,
-      "returnLongArray",
-
-"("
-")"
-"[J",
-      &g_TestJni_returnLongArray);
-
-  jlongArray ret =
-    static_cast<jlongArray>(env->CallObjectMethod(obj,
-      method_id));
-  base::android::CheckException(env);
-  return ScopedJavaLocalRef<jlongArray>(env, ret);
-}
-
-static base::subtle::AtomicWord g_TestJni_returnDoubleArray = 0;
-static ScopedJavaLocalRef<jdoubleArray> Java_TestJni_returnDoubleArray(JNIEnv*
-    env, jobject obj) {
-  /* Must call RegisterNativesImpl()  */
-  DCHECK(g_TestJni_clazz);
-  jmethodID method_id =
-      base::android::MethodID::LazyGet<
-      base::android::MethodID::TYPE_INSTANCE>(
-      env, g_TestJni_clazz,
-      "returnDoubleArray",
-
-"("
-")"
-"[D",
-      &g_TestJni_returnDoubleArray);
-
-  jdoubleArray ret =
-    static_cast<jdoubleArray>(env->CallObjectMethod(obj,
-      method_id));
-  base::android::CheckException(env);
-  return ScopedJavaLocalRef<jdoubleArray>(env, ret);
-}
-
-static base::subtle::AtomicWord g_TestJni_returnObjectArray = 0;
-static ScopedJavaLocalRef<jobjectArray> Java_TestJni_returnObjectArray(JNIEnv*
-    env, jobject obj) {
-  /* Must call RegisterNativesImpl()  */
-  DCHECK(g_TestJni_clazz);
-  jmethodID method_id =
-      base::android::MethodID::LazyGet<
-      base::android::MethodID::TYPE_INSTANCE>(
-      env, g_TestJni_clazz,
-      "returnObjectArray",
-
-"("
-")"
-"[Ljava/lang/Object;",
-      &g_TestJni_returnObjectArray);
-
-  jobjectArray ret =
-    static_cast<jobjectArray>(env->CallObjectMethod(obj,
-      method_id));
-  base::android::CheckException(env);
-  return ScopedJavaLocalRef<jobjectArray>(env, ret);
-}
-
-static base::subtle::AtomicWord g_TestJni_returnArrayOfByteArray = 0;
-static ScopedJavaLocalRef<jobjectArray>
-    Java_TestJni_returnArrayOfByteArray(JNIEnv* env, jobject obj) {
-  /* Must call RegisterNativesImpl()  */
-  DCHECK(g_TestJni_clazz);
-  jmethodID method_id =
-      base::android::MethodID::LazyGet<
-      base::android::MethodID::TYPE_INSTANCE>(
-      env, g_TestJni_clazz,
-      "returnArrayOfByteArray",
-
-"("
-")"
-"[[B",
-      &g_TestJni_returnArrayOfByteArray);
-
-  jobjectArray ret =
-    static_cast<jobjectArray>(env->CallObjectMethod(obj,
-      method_id));
-  base::android::CheckException(env);
-  return ScopedJavaLocalRef<jobjectArray>(env, ret);
-}
-
-static base::subtle::AtomicWord g_TestJni_getCompressFormat = 0;
-static ScopedJavaLocalRef<jobject> Java_TestJni_getCompressFormat(JNIEnv* env,
-    jobject obj) {
-  /* Must call RegisterNativesImpl()  */
-  DCHECK(g_TestJni_clazz);
-  jmethodID method_id =
-      base::android::MethodID::LazyGet<
-      base::android::MethodID::TYPE_INSTANCE>(
-      env, g_TestJni_clazz,
-      "getCompressFormat",
-
-"("
-")"
-"Landroid/graphics/Bitmap$CompressFormat;",
-      &g_TestJni_getCompressFormat);
-
-  jobject ret =
-    env->CallObjectMethod(obj,
-      method_id);
-  base::android::CheckException(env);
-  return ScopedJavaLocalRef<jobject>(env, ret);
-}
-
-static base::subtle::AtomicWord g_TestJni_getCompressFormatList = 0;
-static ScopedJavaLocalRef<jobject> Java_TestJni_getCompressFormatList(JNIEnv*
-    env, jobject obj) {
-  /* Must call RegisterNativesImpl()  */
-  DCHECK(g_TestJni_clazz);
-  jmethodID method_id =
-      base::android::MethodID::LazyGet<
-      base::android::MethodID::TYPE_INSTANCE>(
-      env, g_TestJni_clazz,
-      "getCompressFormatList",
-
-"("
-")"
-"Ljava/util/List;",
-      &g_TestJni_getCompressFormatList);
-
-  jobject ret =
-    env->CallObjectMethod(obj,
-      method_id);
-  base::android::CheckException(env);
-  return ScopedJavaLocalRef<jobject>(env, ret);
-}
-
-// Step 3: RegisterNatives.
-
-static bool RegisterNativesImpl(JNIEnv* env) {
-
-  g_TestJni_clazz = reinterpret_cast<jclass>(env->NewGlobalRef(
-      base::android::GetClass(env, kTestJniClassPath).obj()));
-  g_InfoBar_clazz = reinterpret_cast<jclass>(env->NewGlobalRef(
-      base::android::GetClass(env, kInfoBarClassPath).obj()));
-  return true;
-}
-
-#endif  // org_chromium_TestJni_JNI
-"""
-    self.assertTextEquals(golden_content, h.GetContent())
+    self.assertGoldenTextEquals(h.GetContent())
 
   def testCalledByNativeParseError(self):
     try:
       jni_generator.ExtractCalledByNatives("""
 @CalledByNative
 public static int foo(); // This one is fine
 
 @CalledByNative
 scooby doo
 """)
@@ skipping 43 matching lines @@
     contents = """
 public abstract class java.util.HashSet<T> extends java.util.AbstractSet<E>
       implements java.util.Set<E>, java.lang.Cloneable, java.io.Serializable {
     public void dummy();
   Signature: ()V
 }
 """
     jni_from_javap = jni_generator.JNIFromJavaP(contents.split('\n'),
                                                 TestOptions())
     self.assertEquals(1, len(jni_from_javap.called_by_natives))
-    golden_content = """\
-// Copyright (c) 2012 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.
-
-// This file is autogenerated by
-//     base/android/jni_generator/jni_generator.py
-// For
-//     java/util/HashSet
-
-#ifndef java_util_HashSet_JNI
-#define java_util_HashSet_JNI
-
-#include <jni.h>
-
-#include "base/android/jni_android.h"
-#include "base/android/scoped_java_ref.h"
-#include "base/basictypes.h"
-#include "base/logging.h"
-
-using base::android::ScopedJavaLocalRef;
-
-// Step 1: forward declarations.
-namespace {
-const char kHashSetClassPath[] = "java/util/HashSet";
-// Leaking this jclass as we cannot use LazyInstance from some threads.
-jclass g_HashSet_clazz = NULL;
-}  // namespace
-
-namespace JNI_HashSet {
-
-// Step 2: method stubs.
-
-static base::subtle::AtomicWord g_HashSet_dummy = 0;
-static void Java_HashSet_dummy(JNIEnv* env, jobject obj) __attribute__
-    ((unused));
-static void Java_HashSet_dummy(JNIEnv* env, jobject obj) {
-  /* Must call RegisterNativesImpl()  */
-  DCHECK(g_HashSet_clazz);
-  jmethodID method_id =
-      base::android::MethodID::LazyGet<
-      base::android::MethodID::TYPE_INSTANCE>(
-      env, g_HashSet_clazz,
-      "dummy",
-"()V",
-      &g_HashSet_dummy);
-
-  env->CallVoidMethod(obj,
-      method_id);
-  base::android::CheckException(env);
-
-}
-
-// Step 3: RegisterNatives.
-
-static bool RegisterNativesImpl(JNIEnv* env) {
-
-  g_HashSet_clazz = reinterpret_cast<jclass>(env->NewGlobalRef(
-      base::android::GetClass(env, kHashSetClassPath).obj()));
-  return true;
-}
-}  // namespace JNI_HashSet
-
-#endif  // java_util_HashSet_JNI
-"""
-    self.assertTextEquals(golden_content, jni_from_javap.GetContent())
+    self.assertGoldenTextEquals(jni_from_javap.GetContent())
 
   def testSnippnetJavap6_7(self):
     content_javap6 = """
 public class java.util.HashSet {
 public boolean add(java.lang.Object);
  Signature: (Ljava/lang/Object;)Z
 }
 """
 
     content_javap7 = """
@@ skipping 35 matching lines @@
   Signature: ([BII)I
 public synchronized void reset()   throws java.io.IOException;
   Signature: ()V
 public long skip(long)   throws java.io.IOException;
   Signature: (J)J
 }
 """
     jni_from_javap = jni_generator.JNIFromJavaP(contents.split('\n'),
                                                 TestOptions())
     self.assertEquals(10, len(jni_from_javap.called_by_natives))
-    golden_content = """\
-// Copyright (c) 2012 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.
-
-// This file is autogenerated by
-//     base/android/jni_generator/jni_generator.py
-// For
-//     java/io/InputStream
-
-#ifndef java_io_InputStream_JNI
-#define java_io_InputStream_JNI
-
-#include <jni.h>
-
-#include "base/android/jni_android.h"
-#include "base/android/scoped_java_ref.h"
-#include "base/basictypes.h"
-#include "base/logging.h"
-
-using base::android::ScopedJavaLocalRef;
-
-// Step 1: forward declarations.
-namespace {
-const char kInputStreamClassPath[] = "java/io/InputStream";
-// Leaking this jclass as we cannot use LazyInstance from some threads.
-jclass g_InputStream_clazz = NULL;
-}  // namespace
-
-namespace JNI_InputStream {
-
-// Step 2: method stubs.
-
-static base::subtle::AtomicWord g_InputStream_available = 0;
-static jint Java_InputStream_available(JNIEnv* env, jobject obj) __attribute__
-    ((unused));
-static jint Java_InputStream_available(JNIEnv* env, jobject obj) {
-  /* Must call RegisterNativesImpl()  */
-  DCHECK(g_InputStream_clazz);
-  jmethodID method_id =
-  base::android::MethodID::LazyGet<
-      base::android::MethodID::TYPE_INSTANCE>(
-      env, g_InputStream_clazz,
-      "available",
-"()I",
-      &g_InputStream_available);
-
-  jint ret =
-    env->CallIntMethod(obj,
-      method_id);
-  base::android::CheckException(env);
-  return ret;
-}
-
-static base::subtle::AtomicWord g_InputStream_close = 0;
-static void Java_InputStream_close(JNIEnv* env, jobject obj) __attribute__
-    ((unused));
-static void Java_InputStream_close(JNIEnv* env, jobject obj) {
-  /* Must call RegisterNativesImpl()  */
-  DCHECK(g_InputStream_clazz);
-  jmethodID method_id =
-  base::android::MethodID::LazyGet<
-      base::android::MethodID::TYPE_INSTANCE>(
-      env, g_InputStream_clazz,
-      "close",
-"()V",
-      &g_InputStream_close);
-
-  env->CallVoidMethod(obj,
-      method_id);
-  base::android::CheckException(env);
-
-}
-
-static base::subtle::AtomicWord g_InputStream_mark = 0;
-static void Java_InputStream_mark(JNIEnv* env, jobject obj, jint p0)
-    __attribute__ ((unused));
-static void Java_InputStream_mark(JNIEnv* env, jobject obj, jint p0) {
-  /* Must call RegisterNativesImpl()  */
-  DCHECK(g_InputStream_clazz);
-  jmethodID method_id =
-  base::android::MethodID::LazyGet<
-      base::android::MethodID::TYPE_INSTANCE>(
-      env, g_InputStream_clazz,
-      "mark",
-"(I)V",
-      &g_InputStream_mark);
-
-  env->CallVoidMethod(obj,
-      method_id, p0);
-  base::android::CheckException(env);
-
-}
-
-static base::subtle::AtomicWord g_InputStream_markSupported = 0;
-static jboolean Java_InputStream_markSupported(JNIEnv* env, jobject obj)
-    __attribute__ ((unused));
-static jboolean Java_InputStream_markSupported(JNIEnv* env, jobject obj) {
-  /* Must call RegisterNativesImpl()  */
-  DCHECK(g_InputStream_clazz);
-  jmethodID method_id =
-  base::android::MethodID::LazyGet<
-      base::android::MethodID::TYPE_INSTANCE>(
-      env, g_InputStream_clazz,
-      "markSupported",
-"()Z",
-      &g_InputStream_markSupported);
-
-  jboolean ret =
-    env->CallBooleanMethod(obj,
-      method_id);
-  base::android::CheckException(env);
-  return ret;
-}
-
-static base::subtle::AtomicWord g_InputStream_readI = 0;
-static jint Java_InputStream_readI(JNIEnv* env, jobject obj) __attribute__
-    ((unused));
-static jint Java_InputStream_readI(JNIEnv* env, jobject obj) {
-  /* Must call RegisterNativesImpl()  */
-  DCHECK(g_InputStream_clazz);
-  jmethodID method_id =
-  base::android::MethodID::LazyGet<
-      base::android::MethodID::TYPE_INSTANCE>(
-      env, g_InputStream_clazz,
-      "read",
-"()I",
-      &g_InputStream_readI);
-
-  jint ret =
-    env->CallIntMethod(obj,
-      method_id);
-  base::android::CheckException(env);
-  return ret;
-}
-
-static base::subtle::AtomicWord g_InputStream_readI_AB = 0;
-static jint Java_InputStream_readI_AB(JNIEnv* env, jobject obj, jbyteArray p0)
-    __attribute__ ((unused));
-static jint Java_InputStream_readI_AB(JNIEnv* env, jobject obj, jbyteArray p0) {
-  /* Must call RegisterNativesImpl()  */
-  DCHECK(g_InputStream_clazz);
-  jmethodID method_id =
-  base::android::MethodID::LazyGet<
-      base::android::MethodID::TYPE_INSTANCE>(
-      env, g_InputStream_clazz,
-      "read",
-"([B)I",
-      &g_InputStream_readI_AB);
-
-  jint ret =
-    env->CallIntMethod(obj,
-      method_id, p0);
-  base::android::CheckException(env);
-  return ret;
-}
-
-static base::subtle::AtomicWord g_InputStream_readI_AB_I_I = 0;
-static jint Java_InputStream_readI_AB_I_I(JNIEnv* env, jobject obj, jbyteArray
-    p0,
-    jint p1,
-    jint p2) __attribute__ ((unused));
-static jint Java_InputStream_readI_AB_I_I(JNIEnv* env, jobject obj, jbyteArray
-    p0,
-    jint p1,
-    jint p2) {
-  /* Must call RegisterNativesImpl()  */
-  DCHECK(g_InputStream_clazz);
-  jmethodID method_id =
-  base::android::MethodID::LazyGet<
-      base::android::MethodID::TYPE_INSTANCE>(
-      env, g_InputStream_clazz,
-      "read",
-"([BII)I",
-      &g_InputStream_readI_AB_I_I);
-
-  jint ret =
-    env->CallIntMethod(obj,
-      method_id, p0, p1, p2);
-  base::android::CheckException(env);
-  return ret;
-}
-
-static base::subtle::AtomicWord g_InputStream_reset = 0;
-static void Java_InputStream_reset(JNIEnv* env, jobject obj) __attribute__
-    ((unused));
-static void Java_InputStream_reset(JNIEnv* env, jobject obj) {
-  /* Must call RegisterNativesImpl()  */
-  DCHECK(g_InputStream_clazz);
-  jmethodID method_id =
-  base::android::MethodID::LazyGet<
-      base::android::MethodID::TYPE_INSTANCE>(
-      env, g_InputStream_clazz,
-      "reset",
-"()V",
-      &g_InputStream_reset);
-
-  env->CallVoidMethod(obj,
-      method_id);
-  base::android::CheckException(env);
-
-}
-
-static base::subtle::AtomicWord g_InputStream_skip = 0;
-static jlong Java_InputStream_skip(JNIEnv* env, jobject obj, jlong p0)
-    __attribute__ ((unused));
-static jlong Java_InputStream_skip(JNIEnv* env, jobject obj, jlong p0) {
-  /* Must call RegisterNativesImpl()  */
-  DCHECK(g_InputStream_clazz);
-  jmethodID method_id =
-  base::android::MethodID::LazyGet<
-      base::android::MethodID::TYPE_INSTANCE>(
-      env, g_InputStream_clazz,
-      "skip",
-"(J)J",
-      &g_InputStream_skip);
-
-  jlong ret =
-    env->CallLongMethod(obj,
-      method_id, p0);
-  base::android::CheckException(env);
-  return ret;
-}
-
-static base::subtle::AtomicWord g_InputStream_Constructor = 0;
-static ScopedJavaLocalRef<jobject> Java_InputStream_Constructor(JNIEnv* env)
-    __attribute__ ((unused));
-static ScopedJavaLocalRef<jobject> Java_InputStream_Constructor(JNIEnv* env) {
-  /* Must call RegisterNativesImpl()  */
-  DCHECK(g_InputStream_clazz);
-  jmethodID method_id =
-  base::android::MethodID::LazyGet<
-      base::android::MethodID::TYPE_INSTANCE>(
-      env, g_InputStream_clazz,
-      "<init>",
-"()V",
-      &g_InputStream_Constructor);
-
-  jobject ret =
-    env->NewObject(g_InputStream_clazz,
-      method_id);
-  base::android::CheckException(env);
-  return ScopedJavaLocalRef<jobject>(env, ret);
-}
-
-// Step 3: RegisterNatives.
-
-static bool RegisterNativesImpl(JNIEnv* env) {
-
-  g_InputStream_clazz = reinterpret_cast<jclass>(env->NewGlobalRef(
-      base::android::GetClass(env, kInputStreamClassPath).obj()));
-  return true;
-}
-}  // namespace JNI_InputStream
-
-#endif  // java_io_InputStream_JNI
-"""
-    self.assertTextEquals(golden_content, jni_from_javap.GetContent())
+    self.assertGoldenTextEquals(jni_from_javap.GetContent())
 
   def testREForNatives(self):
     # We should not match "native SyncSetupFlow" inside the comment.
     test_data = """
     /**
      * Invoked when the setup process is complete so we can disconnect from the
      * native-side SyncSetupFlowHandler.
      */
     public void destroy() {
         Log.v(TAG, "Destroying native SyncSetupFlow");
@@ skipping 58 matching lines @@
     class Example {
       private static native void nativeTest(Test t);
     }
     """
     jni_generator.JniParams.SetJarJarMappings(
         """rule org.chromium.example.** com.test.@1
         rule org.chromium.example2.** org.test2.@0""")
     jni_from_java = jni_generator.JNIFromJavaSource(
         test_data, 'org/chromium/example/jni_generator/Example', TestOptions())
     jni_generator.JniParams.SetJarJarMappings('')
-    golden_content = """\
-// Copyright (c) 2012 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.
-
-// This file is autogenerated by
-//     base/android/jni_generator/jni_generator.py
-// For
-//     org/chromium/example/jni_generator/Example
-
-#ifndef org_chromium_example_jni_generator_Example_JNI
-#define org_chromium_example_jni_generator_Example_JNI
-
-#include <jni.h>
-
-#include "base/android/jni_android.h"
-#include "base/android/scoped_java_ref.h"
-#include "base/basictypes.h"
-#include "base/logging.h"
-
-using base::android::ScopedJavaLocalRef;
-
-// Step 1: forward declarations.
-namespace {
-const char kExampleClassPath[] = "com/test/jni_generator/Example";
-// Leaking this jclass as we cannot use LazyInstance from some threads.
-jclass g_Example_clazz = NULL;
-}  // namespace
-
-static void Test(JNIEnv* env, jclass clazz,
-    jobject t);
-
-// Step 2: method stubs.
-
-// Step 3: RegisterNatives.
-
-static bool RegisterNativesImpl(JNIEnv* env) {
-
-  g_Example_clazz = reinterpret_cast<jclass>(env->NewGlobalRef(
-      base::android::GetClass(env, kExampleClassPath).obj()));
-  static const JNINativeMethod kMethodsExample[] = {
-    { "nativeTest",
-"("
-"Lorg/test2/org/chromium/example2/Test;"
-")"
-"V", reinterpret_cast<void*>(Test) },
-  };
-  const int kMethodsExampleSize = arraysize(kMethodsExample);
-
-  if (env->RegisterNatives(g_Example_clazz,
-                           kMethodsExample,
-                           kMethodsExampleSize) < 0) {
-    LOG(ERROR) << "RegisterNatives failed in " << __FILE__;
-    return false;
-  }
-
-  return true;
-}
-
-#endif  // org_chromium_example_jni_generator_Example_JNI
-"""
-    self.assertTextEquals(golden_content, jni_from_java.GetContent())
+    self.assertGoldenTextEquals(jni_from_java.GetContent())
 
   def testImports(self):
     import_header = """
 // Copyright (c) 2012 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.
 
 package org.chromium.content.app;
 
 import android.app.Service;
@@ skipping 64 matching lines @@
                      params=[Param(datatype='long',
                                    name='nativeChromeBrowserProvider')],
                      java_class_name=None,
                      type='method',
                      p0_type='ChromeBrowserProvider',
                      ptr_type=test_options.ptr_type),
     ]
     self.assertListEquals(golden_natives, natives)
     h = jni_generator.InlHeaderFileGenerator('', 'org/chromium/TestJni',
                                              natives, [], test_options)
-    golden_content = """\
-// Copyright (c) 2012 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.
-
-// This file is autogenerated by
-//     base/android/jni_generator/jni_generator.py
-// For
-//     org/chromium/TestJni
-
-#ifndef org_chromium_TestJni_JNI
-#define org_chromium_TestJni_JNI
-
-#include <jni.h>
-
-#include "base/android/jni_android.h"
-#include "base/android/scoped_java_ref.h"
-#include "base/basictypes.h"
-#include "base/logging.h"
-
-using base::android::ScopedJavaLocalRef;
-
-// Step 1: forward declarations.
-namespace {
-const char kTestJniClassPath[] = "org/chromium/TestJni";
-// Leaking this jclass as we cannot use LazyInstance from some threads.
-jclass g_TestJni_clazz = NULL;
-}  // namespace
-
-// Step 2: method stubs.
-static void Destroy(JNIEnv* env, jobject obj,
-    jlong nativeChromeBrowserProvider) {
-  DCHECK(nativeChromeBrowserProvider) << "Destroy";
-  ChromeBrowserProvider* native =
-      reinterpret_cast<ChromeBrowserProvider*>(nativeChromeBrowserProvider);
-  return native->Destroy(env, obj);
-}
-
-// Step 3: RegisterNatives.
-
-static bool RegisterNativesImpl(JNIEnv* env) {
-
-  g_TestJni_clazz = reinterpret_cast<jclass>(env->NewGlobalRef(
-      base::android::GetClass(env, kTestJniClassPath).obj()));
-  static const JNINativeMethod kMethodsTestJni[] = {
-    { "nativeDestroy",
-"("
-"J"
-")"
-"V", reinterpret_cast<void*>(Destroy) },
-  };
-  const int kMethodsTestJniSize = arraysize(kMethodsTestJni);
-
-  if (env->RegisterNatives(g_TestJni_clazz,
-                           kMethodsTestJni,
-                           kMethodsTestJniSize) < 0) {
-    LOG(ERROR) << "RegisterNatives failed in " << __FILE__;
-    return false;
-  }
-
-  return true;
-}
-
-#endif  // org_chromium_TestJni_JNI
-"""
-    self.assertTextEquals(golden_content, h.GetContent())
+    self.assertGoldenTextEquals(h.GetContent())
 
 
 if __name__ == '__main__':
   unittest.main()