package com.vaadin.tests.tb3; import java.io.IOException; import java.nio.file.Paths; import java.util.ArrayList; import java.util.List; import org.junit.After; import org.openqa.selenium.HasCapabilities; import org.openqa.selenium.WebDriver; import org.openqa.selenium.WebElement; import com.vaadin.testbench.TestBenchElement; import com.vaadin.testbench.screenshot.ImageFileUtil; /** * Base class which provides functionality for tests which use the automatic * screenshot comparison function. * * @author Vaadin Ltd */ public abstract class ScreenshotTB3Test extends AbstractTB3Test { /** * Contains a list of screenshot identifiers for which * {@link #compareScreen(String)} has failed during the test */ private List screenshotFailures = new ArrayList<>(); @Override public void setDriver(WebDriver driver) { super.setDriver(driver); // After setting up the driver, we can set the reference name generator. String testClassName = getClass().getSimpleName(); testBench().setReferenceNameGenerator((identifier, capabilities) -> { // Make sure error screenshot directory exists. String browserFolder = capabilities.getBrowserName().toLowerCase() .replaceAll(" ", ""); Paths.get(ImageFileUtil.getScreenshotErrorDirectory(), browserFolder).toFile().mkdirs(); return Paths .get(browserFolder, String.format("%s-%s%s", testClassName, testName.getMethodName().replace('[', '_') .replace(']', '_'), identifier)) .toString(); }); } /** * Grabs a screenshot and compares with the reference image with the given * identifier. Supports alternative references and will succeed if the * screenshot matches at least one of the references. * * In case of a failed comparison this method stores the grabbed screenshots * in the error directory as defined by * {@link #getScreenshotErrorDirectory()}. It will also generate a html file * in the same directory, comparing the screenshot with the first found * reference. * * @param identifier * @throws IOException */ protected void compareScreen(String identifier) throws IOException { if (!testBench().compareScreen(identifier)) { screenshotFailures.add(testBench().getReferenceNameGenerator() .generateName(identifier, ((HasCapabilities) getDriver()).getCapabilities())); } } protected void compareScreen(WebElement element, String identifier) throws IOException { if (!((TestBenchElement) element).compareScreen(identifier)) { screenshotFailures.add(testBench().getReferenceNameGenerator() .generateName(identifier, ((HasCapabilities) getDriver()).getCapabilities())); } } /** * Checks if any screenshot comparisons failures occurred during the test * and combines all comparison errors into one exception * * @throws IOException * If there were failures during the test */ @After public void checkCompareFailures() throws IOException { if (screenshotFailures != null && !screenshotFailures.isEmpty()) { throw new IOException( "The following screenshots did not match the reference: " + screenshotFailures.toString()); } } } _20_2-maintain'>fop-0_20_2-maintain Apache XML Graphics FOP: https://github.com/apache/xmlgraphics-fopwww-data
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