1/*
2 * Copyright (C) 2015 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17package android.support.v7.widget;
18
19import static org.junit.Assert.assertEquals;
20import static org.junit.Assert.assertTrue;
21
22import android.app.Activity;
23import android.app.Instrumentation;
24import android.content.Context;
25import android.support.test.InstrumentationRegistry;
26import android.support.test.filters.SmallTest;
27import android.support.test.rule.ActivityTestRule;
28import android.support.test.runner.AndroidJUnit4;
29import android.support.v7.gridlayout.test.R;
30import android.util.AttributeSet;
31import android.view.Gravity;
32import android.view.View;
33import android.view.ViewGroup;
34
35import org.junit.Rule;
36import org.junit.Test;
37import org.junit.runner.RunWith;
38
39@RunWith(AndroidJUnit4.class)
40@SmallTest
41public class GridLayoutTest {
42    @Rule public final ActivityTestRule<GridLayoutTestActivity> mActivityTestRule;
43
44    View mLeftView;
45    View mRightView;
46    View mGridView;
47
48    public GridLayoutTest() {
49        mActivityTestRule = new ActivityTestRule<>(GridLayoutTestActivity.class);
50    }
51
52    private void setContentView(final int layoutId) throws Throwable {
53        final Instrumentation instrumentation = InstrumentationRegistry.getInstrumentation();
54        mActivityTestRule.runOnUiThread(new Runnable() {
55            @Override
56            public void run() {
57                final Activity activity = mActivityTestRule.getActivity();
58                activity.setContentView(layoutId);
59                // Now that we've set the content view, find the views we'll be testing
60                mLeftView = activity.findViewById(R.id.leftView);
61                mRightView = activity.findViewById(R.id.rightView);
62                mGridView = activity.findViewById(R.id.gridView);
63            }
64        });
65        instrumentation.waitForIdleSync();
66    }
67
68    @Test
69    public void testUseDefaultMargin() throws Throwable {
70        setContentView(R.layout.use_default_margin_test);
71        int left = mLeftView.getWidth();
72        int right = mRightView.getWidth();
73        int total = mGridView.getWidth();
74        assertTrue("left item should get some width", left > 0);
75        assertTrue("right item should get some width", right > 0);
76        assertTrue("test sanity", total > 0);
77        assertTrue("left view should be almost two times right view " + left + " vs " + right,
78                Math.abs(right * 2 - left) < 2);
79    }
80
81    @Test
82    public void testImplicitFillHorizontal() throws Throwable {
83        setContentView(R.layout.fill_horizontal_test);
84        int left = mLeftView.getWidth();
85        int right = mRightView.getWidth();
86        int total = mGridView.getWidth();
87        assertTrue("left item should get some width", left > 0);
88        assertTrue("right item should get some width", right > 0);
89        assertTrue("test sanity", total > 0);
90        assertTrue("left view should be almost two times right view " + left + " vs " + right,
91                Math.abs(right * 2 - left) < 2);
92    }
93
94    @Test
95    public void testMakeViewGone() throws Throwable {
96        setContentView(R.layout.make_view_gone_test);
97        int left = mLeftView.getWidth();
98        int right = mRightView.getWidth();
99        int total = mGridView.getWidth();
100        assertTrue("left item should get some width", left > 0);
101        assertTrue("right item should get some width", right > 0);
102        assertTrue("test sanity", total > 0);
103        // set second view to gone
104        final Instrumentation instrumentation = InstrumentationRegistry.getInstrumentation();
105        mActivityTestRule.runOnUiThread(new Runnable() {
106            @Override
107            public void run() {
108                final View rightView = mActivityTestRule.getActivity().findViewById(R.id.rightView);
109                GridLayout.LayoutParams lp = (GridLayout.LayoutParams) rightView.getLayoutParams();
110                lp.setGravity(Gravity.NO_GRAVITY);
111                rightView.setVisibility(View.GONE);
112            }
113        });
114        instrumentation.waitForIdleSync();
115        left = mActivityTestRule.getActivity().findViewById(R.id.leftView).getWidth();
116        assertEquals(total, left);
117    }
118
119    @Test
120    public void testWrapContentInOtherDirection() throws Throwable {
121        setContentView(R.layout.height_wrap_content_test);
122        int left = mLeftView.getHeight();
123        int right = mRightView.getHeight();
124        int total = mGridView.getHeight();
125        assertTrue("test sanity", left > 0);
126        assertTrue("test sanity", right > 0);
127        assertTrue("test sanity", total > 0);
128        assertTrue("right should be taller than left", right >= left);
129        assertTrue("total height should be smaller than what it could be",
130                total < ((ViewGroup) mGridView.getParent()).getHeight());
131    }
132
133    @Test
134    public void testGenerateLayoutParamsFromMarginParams() {
135        MyGridLayout gridLayout = new MyGridLayout(mActivityTestRule.getActivity());
136        ViewGroup.MarginLayoutParams lp = new ViewGroup.MarginLayoutParams(3, 5);
137        lp.leftMargin = 1;
138        lp.topMargin = 2;
139        lp.rightMargin = 3;
140        lp.bottomMargin = 4;
141        GridLayout.LayoutParams generated = gridLayout.generateLayoutParams(lp);
142        assertEquals(3, generated.width);
143        assertEquals(5, generated.height);
144
145        assertEquals(1, generated.leftMargin);
146        assertEquals(2, generated.topMargin);
147        assertEquals(3, generated.rightMargin);
148        assertEquals(4, generated.bottomMargin);
149    }
150
151    private static class MyGridLayout extends GridLayout {
152
153        public MyGridLayout(Context context) {
154            super(context);
155        }
156
157        public MyGridLayout(Context context, AttributeSet attrs) {
158            super(context, attrs);
159        }
160
161        public MyGridLayout(Context context, AttributeSet attrs, int defStyleAttr) {
162            super(context, attrs, defStyleAttr);
163        }
164
165        @Override
166        protected LayoutParams generateLayoutParams(ViewGroup.LayoutParams p) {
167            return super.generateLayoutParams(p);
168        }
169    }
170}
171