// 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 "chrome/browser/chromeos/login/test/js_checker.h"

#include "content/public/test/browser_test_utils.h"
#include "content/public/test/test_utils.h"
#include "testing/gtest/include/gtest/gtest.h"

namespace {

std::string WrapSend(const std::string& expression) {
  return "window.domAutomationController.send(" + expression + ")";
}

}  // namespace

namespace chromeos {
namespace test {

JSChecker::JSChecker() : web_contents_(NULL) {}

JSChecker::JSChecker(content::WebContents* web_contents)
    : web_contents_(web_contents) {
}

void JSChecker::Evaluate(const std::string& expression) {
  CHECK(web_contents_);
  ASSERT_TRUE(content::ExecuteScript(web_contents_, expression));
}

bool JSChecker::GetBool(const std::string& expression) {
  bool result;
  GetBoolImpl(expression, &result);
  return result;
}

int JSChecker::GetInt(const std::string& expression) {
  int result;
  GetIntImpl(expression, &result);
  return result;
}

std::string JSChecker::GetString(const std::string& expression) {
  std::string result;
  GetStringImpl(expression, &result);
  return result;
}

void JSChecker::ExpectTrue(const std::string& expression) {
  EXPECT_TRUE(GetBool(expression)) << expression;
}

void JSChecker::ExpectFalse(const std::string& expression) {
  EXPECT_FALSE(GetBool(expression)) << expression;
}

void JSChecker::ExpectEQ(const std::string& expression, int result) {
  EXPECT_EQ(GetInt(expression), result) << expression;
}

void JSChecker::ExpectNE(const std::string& expression, int result) {
  EXPECT_NE(GetInt(expression), result) << expression;
}

void JSChecker::ExpectEQ(const std::string& expression,
                         const std::string& result) {
  EXPECT_EQ(GetString(expression), result) << expression;
}

void JSChecker::ExpectNE(const std::string& expression,
                         const std::string& result) {
  EXPECT_NE(GetString(expression), result) << expression;
}

void JSChecker::GetBoolImpl(const std::string& expression, bool* result) {
  CHECK(web_contents_);
  ASSERT_TRUE(content::ExecuteScriptAndExtractBool(web_contents_,
                                                   "!!" + WrapSend(expression),
                                                   result));
}

void JSChecker::GetIntImpl(const std::string& expression, int* result) {
  CHECK(web_contents_);
  ASSERT_TRUE(content::ExecuteScriptAndExtractInt(web_contents_,
                                                  WrapSend(expression),
                                                  result));
}

void JSChecker::GetStringImpl(const std::string& expression,
                              std::string* result) {
  CHECK(web_contents_);
  ASSERT_TRUE(content::ExecuteScriptAndExtractString(web_contents_,
                                                     WrapSend(expression),
                                                     result));
}

}  // namespace test
}  // namespace chromeos