simple chart.js test case (see 802)

src/test/java/org/htmlunit/libraries/ChartJsTest.java → src/test/java/org/htmlunit/libraries/ChartJs2x9x4Test.java

@@ -33,7 +33,7 @@
  * @author Ronald Brill
  */
 @RunWith(BrowserRunner.class)
-public class ChartJsTest extends WebDriverTestCase {
+public class ChartJs2x9x4Test extends WebDriverTestCase {
 
     /** The server. */
     protected static Server SERVER_;

src/test/java/org/htmlunit/libraries/ChartJs4x4x6Test.java

@@ -0,0 +1,88 @@
+/*
+ * Copyright (c) 2002-2024 Gargoyle Software 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
+ * https://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 org.htmlunit.libraries;
+
+import java.net.URL;
+
+import org.eclipse.jetty.server.Server;
+import org.htmlunit.WebDriverTestCase;
+import org.htmlunit.WebServerTestCase;
+import org.htmlunit.junit.BrowserRunner;
+import org.junit.AfterClass;
+import org.junit.BeforeClass;
+import org.junit.Ignore;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.openqa.selenium.JavascriptExecutor;
+import org.openqa.selenium.WebDriver;
+
+/**
+ * Tests for compatibility with <a href="https://www.chartjs.org/">Chart.js</a>.
+ *
+ * @author Ronald Brill
+ */
+@RunWith(BrowserRunner.class)
+public class ChartJs4x4x6Test extends WebDriverTestCase {
+
+    /** The server. */
+    protected static Server SERVER_;
+
+    /**
+     * @throws Exception if an error occurs
+     */
+    @BeforeClass
+    public static void startSesrver() throws Exception {
+        SERVER_ = WebServerTestCase.createWebServer("src/test/resources/libraries/chartjs/4.4.6/", null);
+    }
+
+    /**
+     * @throws Exception if an error occurs
+     */
+    @AfterClass
+    public static void stopServer() throws Exception {
+        if (SERVER_ != null) {
+            SERVER_.stop();
+            SERVER_.destroy();
+            SERVER_ = null;
+        }
+    }
+
+    /**
+     * @return the resource base URL
+     */
+    protected URL getBaseUrl() {
+        return URL_FIRST;
+    }
+
+    /**
+     * @throws Exception if the test fails
+     */
+    @Test
+    @Ignore("Fails because of the missing spread support")
+    public void simpleBarChart() throws Exception {
+        doTest("simple_bar_chart");
+    }
+
+    private void doTest(final String filename) throws Exception {
+        final WebDriver driver = getWebDriver();
+        driver.get(getBaseUrl() + filename + ".html");
+
+        // final WebElement chart = driver.findElement(By.id("myChart"));
+        ((JavascriptExecutor) driver).executeScript("return document.getElementById('myLog').value = "
+                        + "document.getElementById('myChart').toDataURL('image/png') + '§'");
+        final String expected = loadExpectation("/libraries/chartjs/4.4.6/expectations/" + filename, ".expected");
+        verifyTextArea2(driver, expected);
+    }
+}