com.google.testing.web.screenshotter.ScreenshotterTest.java Source code

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Here is the source code for com.google.testing.web.screenshotter.ScreenshotterTest.java

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// Copyright 2017 Google Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//      http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
// //////////////////////////////////////////////////////////////////////////////
//
package com.google.testing.web.screenshotter;

import static org.junit.Assert.assertEquals;

import com.google.testing.bazel.Bazel;
import com.google.testing.web.WebTest;
import java.awt.Image;
import java.nio.file.Files;
import java.nio.file.Path;
import org.junit.After;
import org.junit.Before;
import org.junit.BeforeClass;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.JUnit4;
import org.openqa.selenium.By;
import org.openqa.selenium.WebDriver;

@RunWith(JUnit4.class)
public class ScreenshotterTest {

    private static Path tmpDir;

    private WebDriver driver;
    private Screenshotter screenshotter;

    @BeforeClass
    public static void createTmpDir() throws Exception {
        tmpDir = Bazel.getInstance().newTmpDir(ScreenshotterTest.class.getSimpleName());
    }

    @Before
    public void createDriver() throws Exception {
        driver = new WebTest().newWebDriverSession();
        screenshotter = new Screenshotter(driver);
        driver.get(Bazel.getInstance().runfile("testdata/testpage.html").toUri().toString());
    }

    @After
    public void quitDriver() throws Exception {
        try {
            driver.quit();
        } finally {
            driver = null;
            screenshotter = null;
        }
    }

    @Test
    public void basicScreenshot() throws Exception {
        Screenshot ss = screenshotter.takeScreenshot();
        Path out = tmpDir.resolve("basicScreenshot.png");
        Files.write(out, ss.asBytes());
        System.out.println("image written to: " + out);
        // No assertions. Check output manually.
    }

    @Test
    public void ofInputElement() throws Exception {
        Screenshot ss = screenshotter.of(driver.findElement(By.tagName("input"))).takeScreenshot();
        Path out = tmpDir.resolve("ofInputElement.png");
        Files.write(out, ss.asBytes());
        System.out.println("image written to: " + out);
        Image img = ss.asImage();
        assertEquals(200, img.getHeight(null));
        assertEquals(200, img.getWidth(null));
    }

    @Test
    public void excludingElements() throws Exception {
        Screenshot ss = screenshotter.of(driver.findElement(By.id("outer-div")))
                .excluding(driver.findElement(By.id("inner-div1")), driver.findElement(By.id("b")))
                .takeScreenshot();
        Path out = tmpDir.resolve("excludingElements.png");
        Files.write(out, ss.asBytes());
        System.out.println("image written to: " + out);
        // No assertions. Check output manually.
    }
}