Misc clean up. move widgets from graph to widget package.

Bug: n/a
Test: robotests, rebuild
Change-Id: I910f355312d52e81a0bf57b46a3f267e1eb9882a

tests/robotests/src/com/android/settings/widget/BottomLabelLayoutTest.java

@@ -0,0 +1,64 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.settings.widget;
+
+import static com.google.common.truth.Truth.assertThat;
+
+import android.view.View;
+import android.widget.LinearLayout;
+import android.widget.Space;
+
+import com.android.settings.R;
+
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.robolectric.RobolectricTestRunner;
+import org.robolectric.RuntimeEnvironment;
+
+@RunWith(RobolectricTestRunner.class)
+public class BottomLabelLayoutTest {
+
+    private BottomLabelLayout mBottomLabelLayout;
+    private Space mSpace;
+
+    @Before
+    public void setUp() {
+        mBottomLabelLayout = new BottomLabelLayout(RuntimeEnvironment.application, null);
+        mBottomLabelLayout.setOrientation(LinearLayout.HORIZONTAL);
+
+        mSpace = new Space(RuntimeEnvironment.application);
+        mSpace.setId(R.id.spacer);
+        mBottomLabelLayout.addView(mSpace);
+    }
+
+    @Test
+    public void testSetStacked_stackedTrue_layoutVertical() {
+        mBottomLabelLayout.setStacked(true);
+
+        assertThat(mBottomLabelLayout.getOrientation()).isEqualTo(LinearLayout.VERTICAL);
+        assertThat(mSpace.getVisibility()).isEqualTo(View.GONE);
+    }
+
+    @Test
+    public void testSetStacked_stackedFalse_layoutHorizontal() {
+        mBottomLabelLayout.setStacked(false);
+
+        assertThat(mBottomLabelLayout.getOrientation()).isEqualTo(LinearLayout.HORIZONTAL);
+        assertThat(mSpace.getVisibility()).isEqualTo(View.VISIBLE);
+    }
+}