Upstream oodles of Chrome for Android code into Chromium.

chrome/android/javatests/src/org/chromium/chrome/browser/PopularUrlsTest.java

Index: chrome/android/javatests/src/org/chromium/chrome/browser/PopularUrlsTest.java
diff --git a/chrome/android/javatests/src/org/chromium/chrome/browser/PopularUrlsTest.java b/chrome/android/javatests/src/org/chromium/chrome/browser/PopularUrlsTest.java
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+// Copyright 2015 The Chromium Authors. All rights reserved.
+// 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 static org.chromium.base.test.util.ScalableTimeout.scaleTimeout;
+
+import android.os.Environment;
+import android.text.TextUtils;
+import android.util.Log;
+
+import org.chromium.base.annotations.SuppressFBWarnings;
+import org.chromium.base.test.util.Manual;
+import org.chromium.chrome.test.ChromeActivityTestCaseBase;
+import org.chromium.content.browser.test.util.CallbackHelper;
+import org.chromium.content_public.browser.LoadUrlParams;
+import org.chromium.ui.base.PageTransition;
+
+import java.io.BufferedReader;
+import java.io.File;
+import java.io.FileNotFoundException;
+import java.io.FileReader;
+import java.io.FileWriter;
+import java.io.IOException;
+import java.io.OutputStreamWriter;
+import java.util.Iterator;
+import java.util.LinkedList;
+import java.util.List;
+import java.util.concurrent.TimeUnit;
+import java.util.concurrent.TimeoutException;
+
+/**
+ * Popular URL tests (ported from {@link com.android.browser.PopularUrlsTest}).
+ * <p>
+ * These tests read popular URLs from /sdcard/popular_urls.txt, open them one by one and verify
+ * page load. When aborted, they save the last opened URL in /sdcard/test_status.txt, so that they
+ * can continue opening the next URL when they are restarted.
+ */
+public class PopularUrlsTest extends ChromeActivityTestCaseBase<ChromeActivity> {
+
+    private static final String TAG = "PopularUrlsTest";
+    private static final String NEW_LINE = System.getProperty("line.separator");
+    private static final File INPUT_FILE =
+            new File(Environment.getExternalStorageDirectory(), "popular_urls.txt");
+    private static final File OUTPUT_FILE =
+            new File(Environment.getExternalStorageDirectory(), "test_output.txt");
+    private static final File STATUS_FILE =
+            new File(Environment.getExternalStorageDirectory(), "test_status.txt");
+    private static final File FAILURE_FILE =
+            new File(Environment.getExternalStorageDirectory(), "failures.txt");
+    private static final File WAIT_FLAG_FILE =
+            new File(Environment.getExternalStorageDirectory(), "url-test-short-wait");
+    private static final int PERF_LOOPCOUNT = 10;
+    private static final int STABILITY_LOOPCOUNT = 1;
+    private static final int SHORT_WAIT_TIMEOUT = 1000;
+
+    private RunStatus mStatus;
+    private boolean mFailed;
+    private boolean mDoShortWait;
+
+    public PopularUrlsTest() {
+        super(ChromeActivity.class);
+    }
+
+    @Override
+    protected void setUp() throws Exception {
+        mSkipCheckHttpServer = true;
+        mStatus = new RunStatus(STATUS_FILE);
+        mFailed = false;
+        mDoShortWait = checkDoShortWait();
+        super.setUp();
+    }
+
+    @Override
+    protected void tearDown() throws Exception {
+        if (mStatus != null) {
+            mStatus.cleanUp();
+        }
+        super.tearDown();
+    }
+
+    @Override
+    public void startMainActivity() throws InterruptedException {
+        startMainActivityFromLauncher();
+    }
+
+    private BufferedReader getInputStream(File inputFile) throws FileNotFoundException {
+        FileReader fileReader = new FileReader(inputFile);
+        BufferedReader bufferedReader = new BufferedReader(fileReader);
+
+        return bufferedReader;
+    }
+
+    private OutputStreamWriter getOutputStream(File outputFile) throws IOException {
+        return new FileWriter(outputFile, mStatus.getIsRecovery());
+    }
+
+    private void logToStream(String str, OutputStreamWriter writer) throws IOException {
+        if (writer != null) {
+            writer.write(str);
+            writer.flush();
+        }
+    }
+
+    private boolean checkDoShortWait() {
+        return WAIT_FLAG_FILE.isFile() && WAIT_FLAG_FILE.exists();
+    }
+
+    private static class RunStatus {
+        private File mFile;
+        private int mIteration;
+        private int mPage;
+        private String mUrl;
+        private boolean mIsRecovery;
+        private boolean mAllClear;
+
+        public RunStatus(File file) throws IOException {
+            mFile = file;
+            FileReader input = null;
+            BufferedReader reader = null;
+            mIsRecovery = false;
+            mAllClear = false;
+            mIteration = 0;
+            mPage = 0;
+            try {
+                input = new FileReader(mFile);
+                mIsRecovery = true;
+                reader = new BufferedReader(input);
+                String line = reader.readLine();
+                if (line == null) {
+                    return;
+                }
+                mIteration = Integer.parseInt(line);
+                line = reader.readLine();
+                if (line == null) {
+                    return;
+                }
+                mPage = Integer.parseInt(line);
+            } catch (FileNotFoundException ex) {
+                return;
+            } catch (NumberFormatException nfe) {
+                Log.wtf(TAG, "Unexpected data in status file. Will run for all URLs.");
+                return;
+            } finally {
+                try {
+                    if (reader != null) {
+                        reader.close();
+                    }
+                } finally {
+                    if (input != null) {
+                        input.close();
+                    }
+                }
+            }
+        }
+
+        @SuppressFBWarnings("RV_RETURN_VALUE_IGNORED_BAD_PRACTICE")
+        public void write() throws IOException {
+            FileWriter output = null;
+            if (mFile.exists()) {
+                mFile.delete();
+            }
+            try {
+                output = new FileWriter(mFile);
+                output.write(mIteration + NEW_LINE);
+                output.write(mPage + NEW_LINE);
+                output.write(mUrl + NEW_LINE);
+            } finally {
+                if (output != null) {
+                    output.close();
+                }
+            }
+        }
+
+        @SuppressFBWarnings("RV_RETURN_VALUE_IGNORED_BAD_PRACTICE")
+        public void cleanUp() {
+            // Only perform cleanup when mAllClear flag is set, i.e.
+            // when the test was not interrupted by a Java crash.
+            if (mFile.exists() && mAllClear) {
+                mFile.delete();
+            }
+        }
+
+        public void resetPage() {
+            mPage = 0;
+        }
+
+        public void incrementPage() {
+            ++mPage;
+            mAllClear = true;
+        }
+
+        public void incrementIteration() {
+            ++mIteration;
+        }
+
+        public int getPage() {
+            return mPage;
+        }
+
+        public int getIteration() {
+            return mIteration;
+        }
+
+        public boolean getIsRecovery() {
+            return mIsRecovery;
+        }
+
+        public void setUrl(String url) {
+            mUrl = url;
+            mAllClear = false;
+        }
+    }
+
+    /**
+     * Navigates to a URL directly without going through the UrlBar. This bypasses the page
+     * preloading mechanism of the UrlBar.
+     * @param url the page URL
+     * @param failureWriter the writer where failures/crashes/timeouts are logged.
+     * @throws IOException unable to read from input or write to writer.
+     * @throws InterruptedException the thread was interrupted waiting for the page to load.
+     */
+    public void loadUrl(final String url, OutputStreamWriter failureWriter)
+            throws InterruptedException, IOException {
+        Tab tab = getActivity().getActivityTab();
+        final CallbackHelper loadedCallback = new CallbackHelper();
+        final CallbackHelper failedCallback = new CallbackHelper();
+        final CallbackHelper crashedCallback = new CallbackHelper();
+
+        tab.addObserver(new EmptyTabObserver() {
+            @Override
+            public void onPageLoadFinished(Tab tab) {
+                loadedCallback.notifyCalled();
+            }
+
+            @Override
+            public void onPageLoadFailed(Tab tab, int errorCode) {
+                failedCallback.notifyCalled();
+            }
+
+            @Override
+            public void onCrash(Tab tab, boolean sadTabShown) {
+                crashedCallback.notifyCalled();
+            }
+        });
+
+        getInstrumentation().runOnMainSync(new Runnable() {
+            @Override
+            public void run() {
+                Tab tab = getActivity().getActivityTab();
+                int pageTransition = PageTransition.TYPED | PageTransition.FROM_ADDRESS_BAR;
+                tab.loadUrl(new LoadUrlParams(url, pageTransition));
+            }
+        });
+        // There are a combination of events ordering in a failure case.
+        // There might be TAB_CRASHED with or without PAGE_LOAD_FINISHED preceding it.
+        // It is possible to get PAGE_LOAD_FINISHED followed by PAGE_LOAD_FAILED due to redirects.
+        boolean timedout = false;
+        try {
+            loadedCallback.waitForCallback(0, 1, 2, TimeUnit.MINUTES);
+        } catch (TimeoutException ex) {
+            timedout = true;
+        }
+
+        boolean failed = true;
+        boolean crashed = true;
+        if (mDoShortWait) {
+            try {
+                failedCallback.waitForCallback(0, 1, SHORT_WAIT_TIMEOUT, TimeUnit.MILLISECONDS);
+            } catch (TimeoutException ex) {
+                failed = false;
+            }
+            try {
+                crashedCallback.waitForCallback(0, 1, SHORT_WAIT_TIMEOUT, TimeUnit.MILLISECONDS);
+            } catch (TimeoutException ex) {
+                crashed = false;
+            }
+        } else {
+            try {
+                failedCallback.waitForCallback(
+                        0, 1, scaleTimeout(100 * 1000), TimeUnit.MILLISECONDS);
+            } catch (TimeoutException ex) {
+                failed = false;
+            }
+            try {
+                crashedCallback.waitForCallback(
+                        0, 1, scaleTimeout(100 * 1000), TimeUnit.MILLISECONDS);
+            } catch (TimeoutException ex) {
+                crashed = false;
+            }
+        }
+        if (crashed) {
+            logToStream(url + " crashed!" + NEW_LINE, failureWriter);
+            mFailed = true;
+        }
+        if (failed) {
+            logToStream(url + " failed to load!" + NEW_LINE, failureWriter);
+            mFailed = true;
+        }
+        if (timedout) {
+            logToStream(url + " timed out!" + NEW_LINE, failureWriter);
+            mFailed = true;
+        }
+        // Try to stop page load.
+        getInstrumentation().runOnMainSync(new Runnable() {
+            @Override
+            public void run() {
+                getActivity().getActivityTab().stopLoading();
+            }
+        });
+        getInstrumentation().waitForIdleSync();
+    }
+
+    /**
+     * Loops over a list of URLs, points the browser to each one, and records the time elapsed.
+     *
+     * @param input the reader from which to get the URLs.
+     * @param outputWriter the writer to which to output the results.
+     * @param failureWriter the writer where failures/crashes/timeouts are logged.
+     * @param clearCache determines whether the cache is cleared before loading each page.
+     * @param loopCount the number of times to loop through the list of pages.
+     * @throws IOException unable to read from input or write to writer.
+     * @throws InterruptedException the thread was interrupted waiting for the page to load.
+     */
+    private void loopUrls(BufferedReader input, OutputStreamWriter outputWriter,
+            OutputStreamWriter failureWriter, boolean clearCache, int loopCount)
+            throws IOException, InterruptedException {
+        List<String> pages = new LinkedList<String>();
+
+        String page;
+        while (null != (page = input.readLine())) {
+            if (!TextUtils.isEmpty(page)) {
+                pages.add(page);
+            }
+        }
+
+        Iterator<String> iterator = pages.iterator();
+        for (int i = 0; i < mStatus.getPage(); ++i) {
+            iterator.next();
+        }
+
+        if (mStatus.getIsRecovery()) {
+            Log.e(TAG, "Recovering after crash: " + iterator.next());
+            mStatus.incrementPage();
+        }
+
+        while (mStatus.getIteration() < loopCount) {
+            if (clearCache) {
+                // TODO(jingzhao): Clear cache before loading the URL.
+            }
+            while (iterator.hasNext()) {
+                page = iterator.next();
+                mStatus.setUrl(page);
+                mStatus.write();
+                Log.i(TAG, "Start: " + page);
+
+                long startTime = System.currentTimeMillis();
+                loadUrl(page, failureWriter);
+                long stopTime = System.currentTimeMillis();
+
+                String currentUrl = getActivity().getActivityTab().getUrl();
+                Log.i(TAG, "Finish: " + currentUrl);
+                logToStream(page + "|" + (stopTime - startTime) + NEW_LINE, outputWriter);
+                mStatus.incrementPage();
+            }
+            mStatus.incrementIteration();
+            mStatus.resetPage();
+            iterator = pages.iterator();
+        }
+    }
+
+    /**
+     * Navigate to all the pages listed in the input.
+     * @param perf Whether this is a performance test or stability test.
+     * @throws IOException
+     * @throws InterruptedException
+     */
+    public void loadPages(boolean perf) throws IOException, InterruptedException {
+        OutputStreamWriter outputWriter = null;
+        if (perf) {
+            outputWriter = getOutputStream(OUTPUT_FILE);
+        }
+        OutputStreamWriter failureWriter = getOutputStream(FAILURE_FILE);
+        try {
+            BufferedReader bufferedReader = getInputStream(INPUT_FILE);
+            int loopCount = perf ? PERF_LOOPCOUNT : STABILITY_LOOPCOUNT;
+            try {
+                loopUrls(bufferedReader, outputWriter, failureWriter, true, loopCount);
+                assertFalse(
+                        String.format("Failed to load all pages. Take a look at %s", FAILURE_FILE),
+                        mFailed);
+            } finally {
+                if (bufferedReader != null) {
+                    bufferedReader.close();
+                }
+            }
+        } catch (FileNotFoundException fnfe) {
+            Log.e(TAG, fnfe.getMessage(), fnfe);
+            fail(String.format("URL file %s is not found.", INPUT_FILE));
+        } finally {
+            if (outputWriter != null) {
+                outputWriter.close();
+            }
+            if (failureWriter != null) {
+                failureWriter.close();
+            }
+        }
+    }
+
+    /**
+     * Repeats loading all URLs by PERF_LOOPCOUNT times, and records the time each load takes.
+     */
+    @Manual
+    public void testLoadPerformance() throws IOException, InterruptedException {
+        loadPages(true);
+    }
+
+    /**
+     * Loads all URLs.
+     */
+    @Manual
+    public void testStability() throws IOException, InterruptedException {
+        loadPages(false);
+    }
+}