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1   /*
2    * Copyright (c) 2002-2025 Gargoyle Software Inc.
3    *
4    * Licensed under the Apache License, Version 2.0 (the "License");
5    * you may not use this file except in compliance with the License.
6    * You may obtain a copy of the License at
7    * https://www.apache.org/licenses/LICENSE-2.0
8    *
9    * Unless required by applicable law or agreed to in writing, software
10   * distributed under the License is distributed on an "AS IS" BASIS,
11   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12   * See the License for the specific language governing permissions and
13   * limitations under the License.
14   */
15  package org.htmlunit.libraries;
16  
17  import java.net.URL;
18  
19  import org.eclipse.jetty.server.Server;
20  import org.htmlunit.WebDriverTestCase;
21  import org.htmlunit.WebServerTestCase;
22  import org.junit.jupiter.api.AfterAll;
23  import org.junit.jupiter.api.BeforeAll;
24  import org.junit.jupiter.api.Test;
25  import org.openqa.selenium.JavascriptExecutor;
26  import org.openqa.selenium.WebDriver;
27  
28  /**
29   * Tests for compatibility with <a href="https://www.chartjs.org/">Chart.js</a>.
30   *
31   * @author Ronald Brill
32   */
33  public class ChartJs2x9x4Test extends WebDriverTestCase {
34  
35      /** The server. */
36      protected static Server SERVER_;
37  
38      /**
39       * @throws Exception if an error occurs
40       */
41      @BeforeAll
42      public static void startSesrver() throws Exception {
43          SERVER_ = WebServerTestCase.createWebServer("src/test/resources/libraries/chartjs/2.9.4/", null);
44      }
45  
46      /**
47       * @throws Exception if an error occurs
48       */
49      @AfterAll
50      public static void stopServer() throws Exception {
51          if (SERVER_ != null) {
52              SERVER_.stop();
53              SERVER_.destroy();
54              SERVER_ = null;
55          }
56      }
57  
58      /**
59       * @return the resource base URL
60       */
61      protected URL getBaseUrl() {
62          return URL_FIRST;
63      }
64  
65      /**
66       * @throws Exception if the test fails
67       */
68      @Test
69      public void simpleBarChart() throws Exception {
70          doTest("simple_bar_chart");
71      }
72  
73      private void doTest(final String filename) throws Exception {
74          final WebDriver driver = getWebDriver();
75          driver.get(getBaseUrl() + filename + ".html");
76  
77          // final WebElement chart = driver.findElement(By.id("myChart"));
78          ((JavascriptExecutor) driver).executeScript("return document.getElementById('myLog').value = "
79                          + "document.getElementById('myChart').toDataURL('image/png') + '§'");
80          final String expected = loadExpectation("/libraries/chartjs/2.9.4/expectations/" + filename, ".expected");
81          verifyTextArea2(driver, expected);
82      }
83  }