CssValueTest.java

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package org.openqa.selenium;

import static org.assertj.core.api.Assertions.assertThat;

import org.junit.jupiter.api.Test;
import org.openqa.selenium.support.Color;
import org.openqa.selenium.testing.JupiterTestBase;

class CssValueTest extends JupiterTestBase {

  @Test
  void testShouldPickUpStyleOfAnElement() {
    driver.get(pages.javascriptPage);

    WebElement element = driver.findElement(By.id("green-parent"));
    Color backgroundColour = Color.fromString(element.getCssValue("background-color"));

    assertThat(backgroundColour).isEqualTo(new Color(0, 128, 0, 1));

    element = driver.findElement(By.id("red-item"));
    backgroundColour = Color.fromString(element.getCssValue("background-color"));

    assertThat(backgroundColour).isEqualTo(new Color(255, 0, 0, 1));
  }

  @Test
  void testGetCssValueShouldReturnStandardizedColour() {
    driver.get(pages.colorPage);

    WebElement element = driver.findElement(By.id("namedColor"));
    Color backgroundColour = Color.fromString(element.getCssValue("background-color"));
    assertThat(backgroundColour).isEqualTo(new Color(0, 128, 0, 1));

    element = driver.findElement(By.id("rgb"));
    backgroundColour = Color.fromString(element.getCssValue("background-color"));
    assertThat(backgroundColour).isEqualTo(new Color(0, 128, 0, 1));
  }

  @Test
  void testShouldAllowInheritedStylesToBeUsed() {
    driver.get(pages.javascriptPage);

    WebElement element = driver.findElement(By.id("green-item"));
    String backgroundColour = element.getCssValue("background-color");

    // TODO: How should this be standardized? Should it be standardized?
    assertThat(backgroundColour).isIn("transparent", "rgba(0, 0, 0, 0)");
  }
}