JavaScriptEvalChromeTest.java | Explore in Territory

// Copyright 2015 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

package org.chromium.chrome.browser;

import androidx.test.filters.LargeTest;
import androidx.test.platform.app.InstrumentationRegistry;

import org.junit.Assert;
import org.junit.Before;
import org.junit.Rule;
import org.junit.Test;
import org.junit.runner.RunWith;

import org.chromium.base.ThreadUtils;
import org.chromium.base.test.util.CommandLineFlags;
import org.chromium.base.test.util.Feature;
import org.chromium.base.test.util.UrlUtils;
import org.chromium.chrome.browser.customtabs.CustomTabActivityTestRule;
import org.chromium.chrome.browser.flags.ChromeSwitches;
import org.chromium.chrome.browser.tab.Tab;
import org.chromium.chrome.test.ChromeJUnit4ClassRunner;
import org.chromium.chrome.test.ChromeTabbedActivityTestRule;
import org.chromium.chrome.test.util.ChromeTabUtils;
import org.chromium.content_public.browser.test.util.JavaScriptUtils;

import java.util.concurrent.TimeoutException;

/** Tests for evaluation of JavaScript. */
@RunWith(ChromeJUnit4ClassRunner.class)
@CommandLineFlags.Add({ChromeSwitches.DISABLE_FIRST_RUN_EXPERIENCE})
public class JavaScriptEvalChromeTest {
    @Rule
    public ChromeTabbedActivityTestRule mActivityTestRule = new ChromeTabbedActivityTestRule();

    @Rule
    public CustomTabActivityTestRule mCustomTabActivityTestRule = new CustomTabActivityTestRule();

    private static final String JSTEST_URL =
            UrlUtils.encodeHtmlDataUri(
                    "<html><head><script>"
                            + "  var counter = 0;"
                            + "  function add2() { counter = counter + 2; return counter; }"
                            + "  function foobar() { return 'foobar'; }"
                            + "</script></head>"
                            + "<body><button id=\"test\">Test button</button></body></html>");

    @Before
    public void setUp() {
        mActivityTestRule.startMainActivityWithURL(JSTEST_URL);
    }

    /**
     * Tests that evaluation of JavaScript for test purposes (using JavaScriptUtils, DOMUtils etc)
     * works even in presence of "background" (non-test-initiated) JavaScript evaluation activity.
     */
    @Test
    @LargeTest
    @Feature({"Browser"})
    public void testJavaScriptEvalIsCorrectlyOrderedWithinOneTab() throws TimeoutException {
        Tab tab1 = mActivityTestRule.getActivity().getActivityTab();
        Tab tab2;
        ChromeTabUtils.newTabFromMenu(
                InstrumentationRegistry.getInstrumentation(), mActivityTestRule.getActivity());
        tab2 = mActivityTestRule.getActivity().getActivityTab();
        mActivityTestRule.loadUrl(JSTEST_URL);
        ChromeTabUtils.switchTabInCurrentTabModel(mActivityTestRule.getActivity(), tab1.getId());

        Assert.assertFalse("Tab didn't open", tab1 == tab2);

        JavaScriptUtils.executeJavaScriptAndWaitForResult(tab1.getWebContents(), "counter = 0;");
        JavaScriptUtils.executeJavaScriptAndWaitForResult(tab2.getWebContents(), "counter = 1;");

        for (int i = 1; i <= 30; ++i) {
            for (int j = 0; j < 5; ++j) {
                // Start evaluation of a JavaScript script -- we don't need a result.
                ThreadUtils.runOnUiThreadBlocking(
                        () -> {
                            tab1.getWebContents().evaluateJavaScriptForTests("foobar();", null);
                            tab2.getWebContents().evaluateJavaScriptForTests("foobar();", null);
                        });
            }
            Assert.assertEquals(
                    "Incorrect JavaScript evaluation result on tab1",
                    i * 2,
                    Integer.parseInt(
                            JavaScriptUtils.executeJavaScriptAndWaitForResult(
                                    tab1.getWebContents(), "add2()")));
            for (int j = 0; j < 5; ++j) {
                // Start evaluation of a JavaScript script -- we don't need a result.
                ThreadUtils.runOnUiThreadBlocking(
                        () -> {
                            tab1.getWebContents().evaluateJavaScriptForTests("foobar();", null);
                            tab2.getWebContents().evaluateJavaScriptForTests("foobar();", null);
                        });
            }
            Assert.assertEquals(
                    "Incorrect JavaScript evaluation result on tab2",
                    i * 2 + 1,
                    Integer.parseInt(
                            JavaScriptUtils.executeJavaScriptAndWaitForResult(
                                    tab2.getWebContents(), "add2()")));
        }
    }
}
chromium/chrome/android/javatests/src/org/chromium/chrome/browser/JavaScriptEvalChromeTest.java
