tests/tests/view/src/android/view/cts/ViewGroup_LayoutParamsTest.java

/*
 * Copyright (C) 2008 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 android.view.cts;

import static org.junit.Assert.assertEquals;

import android.content.Context;
import android.content.res.TypedArray;
import android.content.res.XmlResourceParser;
import android.view.ViewGroup;
import android.view.ViewGroup.LayoutParams;
import android.view.cts.util.XmlUtils;

import androidx.test.InstrumentationRegistry;
import androidx.test.filters.SmallTest;
import androidx.test.runner.AndroidJUnit4;

import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.xmlpull.v1.XmlPullParserException;

import java.io.IOException;

@SmallTest
@RunWith(AndroidJUnit4.class)
public class ViewGroup_LayoutParamsTest {
    private Context mContext;

    @Before
    public void setup() {
        mContext = InstrumentationRegistry.getTargetContext();
    }

    @Test
    public void testConstructor() throws XmlPullParserException, IOException {
        // new the MarginLayoutParams instance
        XmlResourceParser parser = mContext.getResources().getLayout(
                R.layout.viewgroup_margin_layout);

        XmlUtils.beginDocument(parser, "LinearLayout");
        new ViewGroup.LayoutParams(mContext, parser);

        LayoutParams temp = new ViewGroup.LayoutParams(320, 480);

        new ViewGroup.LayoutParams(temp);
    }

    @Test
    public void testSetBaseAttributes() throws XmlPullParserException, IOException {
        MockLayoutParams mockLayoutParams = new MockLayoutParams(240, 320);

        int[] attrs = R.styleable.style1;
        TypedArray array = mContext.getTheme().obtainStyledAttributes(R.style.Whatever, attrs);
        mockLayoutParams.setBaseAttributes(array, R.styleable.style1_type6,
                R.styleable.style1_type7);
        int defValue = -1;
        assertEquals(array.getDimensionPixelSize(R.styleable.style1_type6, defValue),
                mockLayoutParams.width);
        assertEquals(array.getDimensionPixelSize(R.styleable.style1_type7, defValue),
                mockLayoutParams.height);
        array.recycle();
    }

    private class MockLayoutParams extends LayoutParams {
        public MockLayoutParams(int width, int height) {
            super(width, height);
        }

        protected void setBaseAttributes(TypedArray a, int widthAttr, int heightAttr) {
            super.setBaseAttributes(a, widthAttr, heightAttr);
        }
    }
}