java/test/org/openqa/selenium/ElementEqualityTest.java

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//   http://www.apache.org/licenses/LICENSE-2.0
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package org.openqa.selenium;

import static org.assertj.core.api.Assertions.assertThat;
import static org.openqa.selenium.testing.drivers.Browser.SAFARI;

import java.util.List;
import org.junit.jupiter.api.Test;
import org.openqa.selenium.remote.RemoteWebElement;
import org.openqa.selenium.testing.JupiterTestBase;
import org.openqa.selenium.testing.NotYetImplemented;
import org.openqa.selenium.testing.SwitchToTopAfterTest;

class ElementEqualityTest extends JupiterTestBase {

  @Test
  void testSameElementLookedUpDifferentWaysShouldBeEqual() {
    driver.get(pages.simpleTestPage);

    WebElement body = driver.findElement(By.tagName("body"));
    WebElement xbody = driver.findElements(By.xpath("//body")).get(0);

    assertThat(xbody).isEqualTo(body);
  }

  @Test
  void testDifferentElementsShouldNotBeEqual() {
    driver.get(pages.simpleTestPage);

    List<WebElement> ps = driver.findElements(By.tagName("p"));

    assertThat(ps.get(0).equals(ps.get(1))).isFalse();
  }

  @Test
  void testSameElementLookedUpDifferentWaysUsingFindElementShouldHaveSameHashCode() {
    driver.get(pages.simpleTestPage);
    WebElement body = driver.findElement(By.tagName("body"));
    WebElement xbody = driver.findElement(By.xpath("//body"));

    assertThat(xbody.hashCode()).isEqualTo(body.hashCode());
  }

  @Test
  void testSameElementLookedUpDifferentWaysUsingFindElementsShouldHaveSameHashCode() {
    driver.get(pages.simpleTestPage);
    List<WebElement> body = driver.findElements(By.tagName("body"));
    List<WebElement> xbody = driver.findElements(By.xpath("//body"));

    assertThat(xbody.get(0).hashCode()).isEqualTo(body.get(0).hashCode());
  }

  @SwitchToTopAfterTest
  @Test
  @NotYetImplemented(SAFARI)
  public void testAnElementFoundInViaJsShouldHaveSameId() {
    driver.get(pages.missedJsReferencePage);

    driver.switchTo().frame("inner");
    WebElement first = driver.findElement(By.id("oneline"));

    WebElement element =
        (WebElement)
            ((JavascriptExecutor) driver)
                .executeScript("return document.getElementById('oneline');");

    checkIdEqualityIfRemote(first, element);
  }

  private void checkIdEqualityIfRemote(WebElement first, WebElement second) {
    String firstId = getId(unwrapIfNecessary(first));
    String secondId = getId(unwrapIfNecessary(second));

    assertThat(secondId).isEqualTo(firstId);
  }

  private String getId(WebElement element) {
    if (!(element instanceof RemoteWebElement)) {
      System.err.println("Skipping remote element equality test - not a remote web driver");
      return null;
    }

    return ((RemoteWebElement) element).getId();
  }

  private WebElement unwrapIfNecessary(WebElement element) {
    if (element instanceof WrapsElement) {
      return ((WrapsElement) element).getWrappedElement();
    }
    return element;
  }
}