com/android/setupwizardlib/view/FillContentLayoutTest.java

/*
 * 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.setupwizardlib.view;

import static org.junit.Assert.assertEquals;
import static org.robolectric.RuntimeEnvironment.application;

import android.view.View;
import android.view.View.MeasureSpec;

import com.android.setupwizardlib.BuildConfig;
import com.android.setupwizardlib.robolectric.SuwLibRobolectricTestRunner;

import org.junit.Test;
import org.junit.runner.RunWith;
import org.robolectric.Robolectric;
import org.robolectric.annotation.Config;

@RunWith(SuwLibRobolectricTestRunner.class)
@Config(constants = BuildConfig.class, sdk = {Config.OLDEST_SDK, Config.NEWEST_SDK})
public class FillContentLayoutTest {

    @Test
    public void testMeasureMinSize() {
        FillContentLayout layout = new FillContentLayout(
                application,
                Robolectric.buildAttributeSet()
                        .addAttribute(android.R.attr.minWidth, "123dp")
                        .addAttribute(android.R.attr.minHeight, "123dp")
                        .build());
        layout.measure(
                MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED),
                MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED));

        assertEquals(123, layout.getMeasuredWidth());
        assertEquals(123, layout.getMeasuredHeight());
    }

    @Test
    public void testMeasureChildIsSmallerThanMaxSize() {
        View child = new View(application);
        FillContentLayout layout = new FillContentLayout(
                application,
                Robolectric.buildAttributeSet()
                        .addAttribute(android.R.attr.maxWidth, "123dp")
                        .addAttribute(android.R.attr.maxHeight, "123dp")
                        .build());
        layout.addView(child);
        layout.measure(
                MeasureSpec.makeMeasureSpec(300, MeasureSpec.EXACTLY),
                MeasureSpec.makeMeasureSpec(300, MeasureSpec.EXACTLY));

        assertEquals(123, child.getMeasuredWidth());
        assertEquals(123, child.getMeasuredHeight());
    }

    @Test
    public void testMeasureChildIsSmallerThanParent() {
        View child = new View(application);
        FillContentLayout layout = new FillContentLayout(
                application,
                Robolectric.buildAttributeSet()
                        .addAttribute(android.R.attr.maxWidth, "123dp")
                        .addAttribute(android.R.attr.maxHeight, "123dp")
                        .build());
        layout.addView(child);
        layout.measure(
                MeasureSpec.makeMeasureSpec(88, MeasureSpec.EXACTLY),
                MeasureSpec.makeMeasureSpec(88, MeasureSpec.EXACTLY));

        assertEquals(88, child.getMeasuredWidth());
        assertEquals(88, child.getMeasuredHeight());
    }
}