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      1 /*
      2  * Copyright (C) 2018 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 
     17 package android.graphics.fonts;
     18 
     19 import static org.junit.Assert.assertEquals;
     20 import static org.junit.Assert.assertNotNull;
     21 import static org.junit.Assert.assertNotSame;
     22 import static org.junit.Assert.assertSame;
     23 import static org.junit.Assert.assertTrue;
     24 
     25 import android.content.res.AssetManager;
     26 
     27 import androidx.test.InstrumentationRegistry;
     28 import androidx.test.filters.SmallTest;
     29 import androidx.test.runner.AndroidJUnit4;
     30 
     31 import org.junit.Test;
     32 import org.junit.runner.RunWith;
     33 
     34 import java.io.IOException;
     35 
     36 @SmallTest
     37 @RunWith(AndroidJUnit4.class)
     38 public class FontFamilyTest {
     39     private static final String TAG = "FontFamilyTest";
     40     private static final String FONT_DIR = "fonts/family_selection/ttf/";
     41 
     42     @Test
     43     public void testBuilder_SingleFont() throws IOException {
     44         AssetManager am = InstrumentationRegistry.getTargetContext().getAssets();
     45         Font font = new Font.Builder(am, FONT_DIR + "ascii_g3em_weight400_upright.ttf").build();
     46         FontFamily family = new FontFamily.Builder(font).build();
     47         assertNotNull(family);
     48         assertEquals(1, family.getSize());
     49         assertSame(font, family.getFont(0));
     50     }
     51 
     52     @Test
     53     public void testBuilder_MultipleFont() throws IOException {
     54         AssetManager am = InstrumentationRegistry.getTargetContext().getAssets();
     55         Font regularFont = new Font.Builder(
     56                 am, FONT_DIR + "ascii_g3em_weight400_upright.ttf").build();
     57         Font boldFont = new Font.Builder(
     58                 am, FONT_DIR + "ascii_m3em_weight700_upright.ttf").build();
     59         FontFamily family = new FontFamily.Builder(regularFont).addFont(boldFont).build();
     60         assertNotNull(family);
     61         assertEquals(2, family.getSize());
     62         assertNotSame(family.getFont(0), family.getFont(1));
     63         assertTrue(family.getFont(0) == regularFont || family.getFont(0) == boldFont);
     64         assertTrue(family.getFont(1) == regularFont || family.getFont(1) == boldFont);
     65     }
     66 
     67     @Test
     68     public void testBuilder_MultipleFont_overrideWeight() throws IOException {
     69         AssetManager am = InstrumentationRegistry.getTargetContext().getAssets();
     70         Font regularFont = new Font.Builder(
     71                 am, FONT_DIR + "ascii_g3em_weight400_upright.ttf").build();
     72         Font boldFont = new Font.Builder(am, FONT_DIR + "ascii_g3em_weight400_upright.ttf")
     73                 .setWeight(700).build();
     74         FontFamily family = new FontFamily.Builder(regularFont).addFont(boldFont).build();
     75         assertNotNull(family);
     76         assertEquals(2, family.getSize());
     77         assertNotSame(family.getFont(0), family.getFont(1));
     78         assertTrue(family.getFont(0) == regularFont || family.getFont(0) == boldFont);
     79         assertTrue(family.getFont(1) == regularFont || family.getFont(1) == boldFont);
     80     }
     81 
     82     @Test
     83     public void testBuilder_MultipleFont_overrideItalic() throws IOException {
     84         AssetManager am = InstrumentationRegistry.getTargetContext().getAssets();
     85         Font regularFont = new Font.Builder(
     86                 am, FONT_DIR + "ascii_g3em_weight400_upright.ttf").build();
     87         Font italicFont = new Font.Builder(am, FONT_DIR + "ascii_g3em_weight400_upright.ttf")
     88                 .setSlant(FontStyle.FONT_SLANT_ITALIC).build();
     89         FontFamily family = new FontFamily.Builder(regularFont).addFont(italicFont).build();
     90         assertNotNull(family);
     91         assertEquals(2, family.getSize());
     92         assertNotSame(family.getFont(0), family.getFont(1));
     93         assertTrue(family.getFont(0) == regularFont || family.getFont(0) == italicFont);
     94         assertTrue(family.getFont(1) == regularFont || family.getFont(1) == italicFont);
     95     }
     96 
     97     @Test(expected = IllegalArgumentException.class)
     98     public void testBuilder_MultipleFont_SameStyle() throws IOException {
     99         AssetManager am = InstrumentationRegistry.getTargetContext().getAssets();
    100         Font regularFont = new Font.Builder(
    101                 am, FONT_DIR + "ascii_g3em_weight400_upright.ttf").build();
    102         Font regularFont2 = new Font.Builder(
    103                 am, FONT_DIR + "ascii_g3em_weight400_upright.ttf").build();
    104         new FontFamily.Builder(regularFont).addFont(regularFont2).build();
    105     }
    106 
    107     @Test(expected = IllegalArgumentException.class)
    108     public void testBuilder_MultipleFont_SameStyle_overrideWeight() throws IOException {
    109         AssetManager am = InstrumentationRegistry.getTargetContext().getAssets();
    110         Font regularFont = new Font.Builder(
    111                 am, FONT_DIR + "ascii_g3em_weight400_upright.ttf").build();
    112         Font regularFont2 = new Font.Builder(am, FONT_DIR + "ascii_m3em_weight700_upright.ttf")
    113                 .setWeight(400).build();
    114         new FontFamily.Builder(regularFont).addFont(regularFont2).build();
    115     }
    116 
    117     @Test(expected = IllegalArgumentException.class)
    118     public void testBuilder_MultipleFont_SameStyle_overrideItalic() throws IOException {
    119         AssetManager am = InstrumentationRegistry.getTargetContext().getAssets();
    120         Font regularFont = new Font.Builder(
    121                 am, FONT_DIR + "ascii_g3em_weight400_upright.ttf").build();
    122         Font regularFont2 = new Font.Builder(am, FONT_DIR + "ascii_h3em_weight400_italic.ttf")
    123                 .setSlant(FontStyle.FONT_SLANT_UPRIGHT).build();
    124         new FontFamily.Builder(regularFont).addFont(regularFont2).build();
    125     }
    126 }
    127