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// to you under the Apache License, Version 2.0 (the
// "License"); you may not use this file except in compliance
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//
//   http://www.apache.org/licenses/LICENSE-2.0
//
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package org.openqa.selenium.lift;

import static org.openqa.selenium.lift.match.NumericalMatchers.exactly;
import static org.openqa.selenium.lift.match.SelectionMatcher.selection;

import org.openqa.selenium.WebDriver;
import org.openqa.selenium.WebElement;
import org.openqa.selenium.lift.find.Finder;

import junit.framework.TestCase;
import org.hamcrest.Matcher;

/**
 * Base class for tests using the LiFT style API to driver WebDriver.
 */
public abstract class HamcrestWebDriverTestCase extends TestCase {

  private static final long DEFAULT_TIMEOUT = 5000;

  private WebDriver driver;
  private TestContext context;

  protected abstract WebDriver createDriver();

  @Override
  protected void setUp() throws Exception {
    super.setUp();
    driver = createDriver();
    context = new WebDriverTestContext(driver);
  }

  @Override
  protected void tearDown() throws Exception {
    context.quit();
    super.tearDown();
  }

  protected WebDriver getWebDriver() {
    return driver;
  }

  protected void clickOn(Finder finder) {
    context.clickOn(finder);
  }

  protected void assertPresenceOf(Finder finder) {
    context.assertPresenceOf(finder);
  }

  protected void assertPresenceOf(Matcher cardinalityConstraint,
      Finder finder) {
    context.assertPresenceOf(cardinalityConstraint, finder);
  }

  protected void waitFor(Finder finder) {
    waitFor(finder, DEFAULT_TIMEOUT);
  }

  protected void waitFor(Finder finder, long timeout) {
    context.waitFor(finder, timeout);
  }

  /**
   * Cause the browser to navigate to the given URL
   *
   * @param url URL
   */
  protected void goTo(String url) {
    context.goTo(url);
  }

  /**
   * Type characters into an element of the page, typically an input field
   *
   * @param text - characters to type
   * @param inputFinder - specification for the page element
   */
  protected void type(String text, Finder inputFinder) {
    context.type(text, inputFinder);
  }

  /**
   * Syntactic sugar to use with {@link org.openqa.selenium.lift.HamcrestWebDriverTestCase}, e.g.
   * type("cheese", into(textbox())); The into() method simply returns its argument.
   *
   * @param input finder input
   * @return the finder
   */
  protected Finder into(Finder input) {
    return input;
  }

  /**
   * replace the default {@link TestContext}
   *
   * @param context context to set
   */
  void setContext(TestContext context) {
    this.context = context;
  }

  /**
   * @return  the current page source
   */
  public String getPageSource() {
    return getWebDriver().getPageSource();
  }

  /**
   * @return  the current page title
   */
  public String getTitle() {
    return getWebDriver().getTitle();
  }

  /**
   * @return  the current URL
   */
  public String getCurrentUrl() {
    return getWebDriver().getCurrentUrl();
  }

  protected void assertSelected(Finder finder) {
    assertPresenceOf(finder.with(selection()));
  }

  protected void assertNotSelected(Finder finder) {
    assertPresenceOf(exactly(0), finder.with(selection()));
  }

}