com/android/setupwizardlib/test/DrawableLayoutDirectionHelperTest.java

/*
 * Copyright (C) 2015 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.test;

import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertSame;

import android.annotation.SuppressLint;
import android.content.Context;
import android.content.res.Configuration;
import android.graphics.Color;
import android.graphics.Rect;
import android.graphics.drawable.ColorDrawable;
import android.graphics.drawable.Drawable;
import android.graphics.drawable.InsetDrawable;
import android.os.Build;
import android.view.View;
import android.support.test.InstrumentationRegistry;
import android.support.test.filters.SmallTest;
import android.support.test.runner.AndroidJUnit4;
import com.android.setupwizardlib.util.DrawableLayoutDirectionHelper;
import java.util.Locale;
import org.junit.Test;
import org.junit.runner.RunWith;

@RunWith(AndroidJUnit4.class)
@SmallTest
public class DrawableLayoutDirectionHelperTest {

  @Test
  public void testCreateRelativeInsetDrawableLtr() {
    final Drawable drawable = new ColorDrawable(Color.RED);
    @SuppressLint("InlinedApi") // Testing with inlined constant is OK here
    final InsetDrawable insetDrawable =
        DrawableLayoutDirectionHelper.createRelativeInsetDrawable(
            drawable,
            1 /* start */,
            2 /* top */,
            3 /* end */,
            4 /* bottom */,
            View.LAYOUT_DIRECTION_LTR);
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
      assertSame(
          "Drawable from getDrawable() should be same as passed in",
          drawable,
          insetDrawable.getDrawable());
    }
    Rect outRect = new Rect();
    insetDrawable.getPadding(outRect);
    assertEquals("InsetDrawable padding should be same as inset", new Rect(1, 2, 3, 4), outRect);
  }

  @Test
  public void testCreateRelativeInsetDrawableRtl() {
    final Drawable drawable = new ColorDrawable(Color.RED);
    @SuppressLint("InlinedApi") // Testing with inlined constant is OK here
    final InsetDrawable insetDrawable =
        DrawableLayoutDirectionHelper.createRelativeInsetDrawable(
            drawable,
            1 /* start */,
            2 /* top */,
            3 /* end */,
            4 /* bottom */,
            View.LAYOUT_DIRECTION_RTL);
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
      assertSame(
          "Drawable from getDrawable() should be same as passed in",
          drawable,
          insetDrawable.getDrawable());
    }
    Rect outRect = new Rect();
    insetDrawable.getPadding(outRect);
    assertEquals("InsetDrawable padding should be same as inset", new Rect(3, 2, 1, 4), outRect);
  }

  @Test
  public void testCreateRelativeInsetDrawableViewRtl() {
    final Drawable drawable = new ColorDrawable(Color.RED);
    final View view = new ForceRtlView(InstrumentationRegistry.getContext());
    final InsetDrawable insetDrawable =
        DrawableLayoutDirectionHelper.createRelativeInsetDrawable(
            drawable, 1 /* start */, 2 /* top */, 3 /* end */, 4 /* bottom */, view);
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
      assertSame(
          "Drawable from getDrawable() should be same as passed in",
          drawable,
          insetDrawable.getDrawable());
    }
    Rect outRect = new Rect();
    insetDrawable.getPadding(outRect);
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR1) {
      assertEquals("InsetDrawable padding should be same as inset", new Rect(3, 2, 1, 4), outRect);
    } else {
      assertEquals("InsetDrawable padding should be same as inset", new Rect(1, 2, 3, 4), outRect);
    }
  }

  @Test
  public void testCreateRelativeInsetDrawableContextRtl() {
    Context context = InstrumentationRegistry.getContext();
    final Drawable drawable = new ColorDrawable(Color.RED);
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR1) {
      final Configuration config = new Configuration();
      config.setLayoutDirection(new Locale("fa", "IR"));
      context = context.createConfigurationContext(config);
    }
    final InsetDrawable insetDrawable =
        DrawableLayoutDirectionHelper.createRelativeInsetDrawable(
            drawable, 1 /* start */, 2 /* top */, 3 /* end */, 4 /* bottom */, context);
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
      assertSame(
          "Drawable from getDrawable() should be same as passed in",
          drawable,
          insetDrawable.getDrawable());
    }
    Rect outRect = new Rect();
    insetDrawable.getPadding(outRect);
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR1) {
      assertEquals("InsetDrawable padding should be same as inset", new Rect(3, 2, 1, 4), outRect);
    } else {
      assertEquals("InsetDrawable padding should be same as inset", new Rect(1, 2, 3, 4), outRect);
    }
  }

  private static class ForceRtlView extends View {

    ForceRtlView(Context context) {
      super(context);
    }

    @Override
    @SuppressLint("InlinedApi") // Testing with inlined constant is OK here
    public int getLayoutDirection() {
      return View.LAYOUT_DIRECTION_RTL;
    }
  }
}