add Html2CanvasTest

rbri · rbri · commit bfe9acc0c429 · 2025-02-23T13:31:15.000+01:00
diff --git a/src/test/java/org/htmlunit/javascript/host/css/ComputedCSSStyleDeclarationTest.java b/src/test/java/org/htmlunit/javascript/host/css/ComputedCSSStyleDeclarationTest.java
@@ -2997,4 +2997,27 @@ public void insideHidden() throws Exception {
 
         loadPageVerifyTitle2(html);
     }
+
+    /**
+     * @throws Exception if an error occurs
+     */
+    @Test
+    @Alerts("0s")
+    public void animationDuration() throws Exception {
+        final String html
+            = "<html><body>\n"
+
+            + "<div id='myDiv'>HtmlUnit</div>\n"
+
+            + "<script>\n"
+            + LOG_TITLE_FUNCTION
+            + "  var div = document.getElementById('myDiv');\n"
+            + "  var decl = window.getComputedStyle(div, null);\n"
+            + "  log(decl.animationDuration);\n"
+            + "</script>\n"
+
+            + "</body></html>";
+
+        loadPageVerifyTitle2(html);
+    }
 }
diff --git a/src/test/java/org/htmlunit/libraries/Html2CanvasTest.java b/src/test/java/org/htmlunit/libraries/Html2CanvasTest.java
@@ -0,0 +1,112 @@
+/*
+ * Copyright (c) 2002-2025 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.htmlunit.junit.annotation.Alerts;
+import org.htmlunit.junit.annotation.NotYetImplemented;
+import org.junit.AfterClass;
+import org.junit.Assert;
+import org.junit.BeforeClass;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.openqa.selenium.By;
+import org.openqa.selenium.WebDriver;
+import org.openqa.selenium.WebElement;
+
+/**
+ * Tests for html2canvas.
+ *
+ * @author Ronald Brill
+ */
+@RunWith(BrowserRunner.class)
+public class Html2CanvasTest 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/html2canvas/", 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
+    @Alerts("data:image/png;base64")
+    @NotYetImplemented
+    public void helloWorld() throws Exception {
+        // this does not produce an image in html unit so far
+        // have added this test to not forget it
+        doTest("html2canvas.html");
+    }
+
+    private void doTest(final String filename) throws Exception {
+        final WebDriver driver = getWebDriver();
+
+        driver.get(getBaseUrl() + filename);
+        driver.findElement(By.id("printButtonId")).click();
+
+        // verifyTextArea2(driver, getExpectedAlerts());
+
+        final WebElement textArea = driver.findElement(By.id("myLog"));
+        verify(DEFAULT_WAIT_TIME, textArea);
+    }
+
+    private static void verify(final long maxWaitTime, final WebElement textArea) throws Exception {
+        final long maxWait = System.currentTimeMillis() + maxWaitTime;
+
+        String value = "";
+        while (System.currentTimeMillis() < maxWait) {
+            value = textArea.getDomProperty("value");
+            if (value != null && value.startsWith("data:image/png;base64,")) {
+                break;
+            }
+
+            Thread.sleep(50);
+        }
+
+        Assert.assertTrue("'" + value + "' does not start with 'data:image/png;base64'",
+                            value.startsWith("data:image/png;base64,"));
+    }
+}
