content_shell: Create the FIFOs needed for running Android layout tests

content/shell/shell_layout_tests_android.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/shell/shell_layout_tests_android.h"
+
+#include "base/android/fifo_utils.h"
+#include "base/android/jni_android.h"
+#include "base/android/jni_string.h"
+#include "base/command_line.h"
+#include "base/files/file_path.h"
+#include "base/message_loop.h"
+#include "content/public/test/nested_message_pump_android.h"
+#include "content/shell/common/shell_switches.h"
+#include "googleurl/src/gurl.h"
+#include "jni/ShellLayoutTestUtils_jni.h"
+
+namespace {
+
+// Path to search for when translating a layout test path to an URL.
+const char kAndroidLayoutTestPath[] =
+    "/data/local/tmp/third_party/WebKit/LayoutTests/";
+
+// The base URL from which layout tests are being served on Android.
+const char kAndroidLayoutTestBase[] = "http://127.0.0.1:8000/all-tests/";
+
+base::FilePath GetTestFilesDirectory(JNIEnv* env) {
+  ScopedJavaLocalRef<jstring> directory =
+      content::Java_ShellLayoutTestUtils_getApplicationFilesDirectory(
+          env, base::android::GetApplicationContext());
+  return base::FilePath(ConvertJavaStringToUTF8(directory));
+}
+
+void EnsureCreateFIFO(const base::FilePath& path) {
+  unlink(path.value().c_str());
+  CHECK(base::android::CreateFIFO(path, 0666))
+    << "Unable to create the Android's FIFO: " << path.value().c_str();
+}
+
+base::MessagePump* CreateMessagePumpForUI() {
+  return new content::NestedMessagePumpAndroid();
+}
+
+}  // namespace
+
+namespace content {
+
+bool GetTestUrlForAndroid(std::string& path_or_url, GURL* url) {
+  if (path_or_url.find(kAndroidLayoutTestPath) == std::string::npos)
+    return false;
+
+  std::string test_location(kAndroidLayoutTestBase);
+  test_location.append(path_or_url.substr(strlen(kAndroidLayoutTestPath)));
+
+  *url = GURL(test_location);
+  return true;
+}
+
+void EnsureInitializeForAndroidLayoutTests() {
+  CHECK(CommandLine::ForCurrentProcess()->HasSwitch(switches::kDumpRenderTree));
+
+  JNIEnv* env = base::android::AttachCurrentThread();
+  content::NestedMessagePumpAndroid::RegisterJni(env);
+  content::RegisterNativesImpl(env);
+
+  bool success = base::MessageLoop::InitMessagePumpForUIFactory(
+      &CreateMessagePumpForUI);
+  CHECK(success) << "Unable to initialize the message pump for Android.";
+
+  // Android will need three FIFOs to communicate with the Blink test runner,
+  // one for each of [stdout, stderr, stdin].
+  base::FilePath files_dir(GetTestFilesDirectory(env));
+
+  base::FilePath stdout_fifo(files_dir.Append(FILE_PATH_LITERAL("test.fifo")));
+  EnsureCreateFIFO(stdout_fifo);
+
+  base::FilePath stderr_fifo(
+      files_dir.Append(FILE_PATH_LITERAL("stderr.fifo")));
+  EnsureCreateFIFO(stderr_fifo);
+
+  base::FilePath stdin_fifo(files_dir.Append(FILE_PATH_LITERAL("stdin.fifo")));
+  EnsureCreateFIFO(stdin_fifo);
+
+  // Redirecting stdout needs to happen before redirecting stdin, which needs
+  // to happen before redirecting stderr.
+  success = base::android::RedirectStream(stdout, stdout_fifo, "w") &&
+            base::android::RedirectStream(stdin, stdin_fifo, "r") &&
+            base::android::RedirectStream(stderr, stderr_fifo, "w");
+
+  CHECK(success) << "Unable to initialize the Android FIFOs.";
+}
+
+}  // namespace content