WebLayer: Add test coverage for willAutomaticallyReloadAfterCrash

Bug: 1146058
Change-Id: I1a1edd86cc077816f233fc9a9abde2399800009f
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2526734
Commit-Queue: Evan Stade <estade@chromium.org>
Reviewed-by: Scott Violet <sky@chromium.org>
Reviewed-by: Bo <boliu@chromium.org>
Cr-Commit-Position: refs/heads/master@{#826501}

weblayer/browser/android/javatests/src/org/chromium/weblayer/test/TabTest.java

@@ -12,12 +12,14 @@ import android.view.ViewGroup;
 import androidx.fragment.app.Fragment;
 import androidx.test.filters.SmallTest;
 
+import org.hamcrest.Matchers;
 import org.junit.Assert;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.runner.RunWith;
 
 import org.chromium.base.test.util.CallbackHelper;
+import org.chromium.base.test.util.Criteria;
 import org.chromium.base.test.util.CriteriaHelper;
 import org.chromium.content_public.browser.test.util.TestThreadUtils;
 import org.chromium.weblayer.ActionModeCallback;
@@ -306,4 +308,52 @@ public class TabTest {
 
         // Smoke test. It's not possible to trigger an action mode click in a test.
     }
+
+    @Test
+    @SmallTest
+    @MinWebLayerVersion(88) // New API added in 88.
+    public void testWillAutomaticallyReloadAfterCrash() throws Exception {
+        mActivity = mActivityTestRule.launchShellWithUrl("about:blank");
+        Browser browser2 = TestThreadUtils.runOnUiThreadBlocking(() -> {
+            Browser browser = mActivity.getBrowser();
+            // Initial tab is foreground, so it won't automatically reload.
+            Tab initialTab = browser.getActiveTab();
+            Assert.assertFalse(initialTab.willAutomaticallyReloadAfterCrash());
+
+            // New tab is background, so it will automatically reload.
+            Tab newTab = browser.createTab();
+            Assert.assertEquals(browser.getTabs().size(), 2);
+            Assert.assertNotEquals(newTab, mActivity.getTab());
+            Assert.assertNotEquals(newTab, browser.getActiveTab());
+            Assert.assertTrue(newTab.willAutomaticallyReloadAfterCrash());
+
+            // New tab is foreground after being made active.
+            browser.setActiveTab(newTab);
+            Assert.assertEquals(newTab, browser.getActiveTab());
+            Assert.assertFalse(newTab.willAutomaticallyReloadAfterCrash());
+            Assert.assertTrue(initialTab.willAutomaticallyReloadAfterCrash());
+
+            // Add a second browser; both browsers can have tabs that think they're foreground.
+            Browser newBrowser =
+                    Browser.fromFragment(mActivity.createBrowserFragment(android.R.id.content));
+            Assert.assertTrue(initialTab.willAutomaticallyReloadAfterCrash());
+            Assert.assertFalse(newTab.willAutomaticallyReloadAfterCrash());
+            Assert.assertFalse(newBrowser.getActiveTab().willAutomaticallyReloadAfterCrash());
+
+            // Moving the activity to the background causes all tabs to be not foreground.
+            mActivity.moveTaskToBack(true);
+            return newBrowser;
+        });
+
+        CriteriaHelper.pollUiThread(
+                ()
+                        -> Criteria.checkThat(mActivity.getBrowser()
+                                                      .getActiveTab()
+                                                      .willAutomaticallyReloadAfterCrash(),
+                                Matchers.is(true)));
+        TestThreadUtils.runOnUiThreadBlocking(
+                ()
+                        -> Assert.assertTrue(
+                                browser2.getActiveTab().willAutomaticallyReloadAfterCrash()));
+    }
 }