Add test for using postMessage around loadData API

Test that source origin is a non-null string of n,u,l,l when posting a message from loadData API. Bug: 1021622 Change-Id: I93fff4ac9962fd9d0637a53e51162f55e7777a42 Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1900153Reviewed-by: Shimi Zhang <ctzsm@chromium.org> Commit-Queue: Changwan Ryu <changwan@chromium.org> Cr-Commit-Position: refs/heads/master@{#713525}

Add test for using postMessage around loadData API
Test that source origin is a non-null string of n,u,l,l when posting a message from loadData API. Bug: 1021622 Change-Id: I93fff4ac9962fd9d0637a53e51162f55e7777a42 Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1900153Reviewed-by: Shimi Zhang <ctzsm@chromium.org> Commit-Queue: Changwan Ryu <changwan@chromium.org> Cr-Commit-Position: refs/heads/master@{#713525}
5a228308 · Changwan Ryu · Commit Bot · 8148412d · 5a228308
Commit 5a228308 authored Nov 07, 2019 by Changwan Ryu Committed by Commit Bot Nov 07, 2019
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android_webview/javatests/src/org/chromium/android_webview/test/JsJavaInteractionTest.java .../chromium/android_webview/test/JsJavaInteractionTest.java +26 -0

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--- a/android_webview/javatests/src/org/chromium/android_webview/test/JsJavaInteractionTest.java
+++ b/android_webview/javatests/src/org/chromium/android_webview/test/JsJavaInteractionTest.java
@@ -128,6 +128,32 @@ public class JsJavaInteractionTest {
        Assert.assertTrue(mListener.hasNoMoreOnPostMessage());
    }

+    @Test
+    @SmallTest
+    @Feature({"AndroidWebView", "JsJavaInteraction"})
+    public void testPostMessage_LoadData_MessageHasStringNullOrigin() throws Throwable {
+        addWebMessageListenerOnUiThread(mAwContents, JS_OBJECT_NAME, new String[] {"*"}, mListener);
+
+        final String html = "<html><head><script>myObject.postMessage('Hello');</script></head>"
+                + "<body></body></html>";
+
+        // This uses loadDataAsync() which is equivalent to WebView#loadData(...).
+        mActivityTestRule.loadHtmlSync(
+                mAwContents, mContentsClient.getOnPageFinishedHelper(), html);
+
+        TestWebMessageListener.Data data = mListener.waitForOnPostMessage();
+
+        // Note that the source origin is a non-null string of n, u, l, l.
+        Assert.assertNotNull(data.mSourceOrigin);
+        Assert.assertEquals("null", data.mSourceOrigin.toString());
+
+        Assert.assertEquals(HELLO, data.mMessage);
+        Assert.assertTrue(data.mIsMainFrame);
+        Assert.assertEquals(0, data.mPorts.length);
+
+        Assert.assertTrue(mListener.hasNoMoreOnPostMessage());
+    }
+
    @Test
    @SmallTest
    @Feature({"AndroidWebView", "JsJavaInteraction"})