🏠 Add instrumentation test for Suggestions BottomSheet

chrome/test/android/javatests/src/org/chromium/chrome/test/BottomSheetTestCaseBase.java

Index: chrome/test/android/javatests/src/org/chromium/chrome/test/BottomSheetTestCaseBase.java
diff --git a/chrome/test/android/javatests/src/org/chromium/chrome/test/BottomSheetTestCaseBase.java b/chrome/test/android/javatests/src/org/chromium/chrome/test/BottomSheetTestCaseBase.java
new file mode 100644
index 0000000000000000000000000000000000000000..afe9bd0e250270b42d07347b01843a2147a4a896
--- /dev/null
+++ b/chrome/test/android/javatests/src/org/chromium/chrome/test/BottomSheetTestCaseBase.java
@@ -0,0 +1,41 @@
+// Copyright 2017 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.test;
+
+import org.chromium.base.ThreadUtils;
+import org.chromium.base.test.util.CommandLineFlags;
+import org.chromium.chrome.browser.preferences.ChromePreferenceManager;
+import org.chromium.chrome.browser.widget.BottomSheet;
+import org.chromium.chrome.browser.widget.BottomSheet.BottomSheetContent;
+
+/**
+ * Base class for instrumentation tests using the bottom sheet.
+ */
+@CommandLineFlags.Add({"enable-features=ChromeHome"})
+public abstract class BottomSheetTestCaseBase extends ChromeTabbedActivityTestBase {
+    @Override
+    protected void setUp() throws Exception {
+        ChromePreferenceManager.getInstance(getInstrumentation().getTargetContext())
+                .setChromeHomeEnabled(true);
+        super.setUp();
+        ThreadUtils.runOnUiThreadBlocking(new Runnable() {
+            @Override
+            public void run() {
+                getActivity().getBottomSheet().setSheetState(
+                        BottomSheet.SHEET_STATE_FULL, /* animate = */ false);
+            }
+        });
+        getInstrumentation().waitForIdleSync();

[Michael van Ouwerkerk, 2017/02/03 20:20:33]

Could we wait for something more specific? Is there some kind of state we can
observe in the bottom sheet, or a callback that we can wait for?

+    }
+
+    @Override
+    public void startMainActivity() throws InterruptedException {
+        startMainActivityOnBlankPage();
+    }
+
+    protected BottomSheetContent getBottomSheetContent() {
+        return getActivity().getBottomSheet().getCurrentSheetContent();
+    }
+}