| /* |
| * Copyright 2018 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.graphics; |
| |
| import static org.junit.Assert.assertEquals; |
| |
| import android.content.Context; |
| import android.content.res.AssetManager; |
| import android.graphics.fonts.FontFileUtil; |
| import android.graphics.fonts.FontVariationAxis; |
| import android.util.Log; |
| import android.util.Pair; |
| |
| import androidx.test.InstrumentationRegistry; |
| import androidx.test.filters.SmallTest; |
| |
| import org.junit.Test; |
| |
| import java.io.File; |
| import java.io.FileInputStream; |
| import java.io.FileOutputStream; |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.nio.ByteBuffer; |
| import java.nio.channels.FileChannel; |
| |
| @SmallTest |
| public class FontFileUtilTest { |
| private static final String TAG = "FontFileUtilTest"; |
| private static final String CACHE_FILE_PREFIX = ".font"; |
| |
| private static File getTempFile() { |
| Context ctx = InstrumentationRegistry.getTargetContext(); |
| final String prefix = CACHE_FILE_PREFIX; |
| for (int i = 0; i < 100; ++i) { |
| final File file = new File(ctx.getCacheDir(), prefix + i); |
| try { |
| if (file.createNewFile()) { |
| return file; |
| } |
| } catch (IOException e) { |
| // ignore. Try next file. |
| } |
| } |
| return null; |
| } |
| |
| private static ByteBuffer mmap(AssetManager am, String path) { |
| File file = getTempFile(); |
| try (InputStream is = am.open(path)) { |
| if (!copyToFile(file, is)) { |
| return null; |
| } |
| return mmap(file); |
| } catch (IOException e) { |
| Log.e(TAG, "Failed to open assets"); |
| return null; |
| } finally { |
| file.delete(); |
| } |
| } |
| |
| private static ByteBuffer mmap(File file) { |
| try (FileInputStream fis = new FileInputStream(file)) { |
| FileChannel channel = fis.getChannel(); |
| return channel.map(FileChannel.MapMode.READ_ONLY, 0, channel.size()); |
| } catch (IOException e) { |
| return null; |
| } |
| } |
| |
| private static boolean copyToFile(File file, InputStream is) { |
| try (FileOutputStream os = new FileOutputStream(file, false)) { |
| byte[] buffer = new byte[1024]; |
| int readLen; |
| while ((readLen = is.read(buffer)) != -1) { |
| os.write(buffer, 0, readLen); |
| } |
| return true; |
| } catch (IOException e) { |
| Log.e(TAG, "Error copying resource contents to temp file: " + e.getMessage()); |
| return false; |
| } |
| } |
| |
| @Test |
| public void testRegularFonts() throws IOException { |
| AssetManager am = InstrumentationRegistry.getTargetContext().getAssets(); |
| for (Pair<Integer, Boolean> style : FontTestUtil.getAllStyles()) { |
| int weight = style.first.intValue(); |
| boolean italic = style.second.booleanValue(); |
| String path = FontTestUtil.getFontPathFromStyle(weight, italic); |
| |
| ByteBuffer buffer = mmap(am, path); |
| int packed = FontFileUtil.analyzeStyle(buffer, 0, null); |
| assertEquals(path, weight, FontFileUtil.unpackWeight(packed)); |
| assertEquals(path, italic, FontFileUtil.unpackItalic(packed)); |
| } |
| } |
| |
| @Test |
| public void testTtcFont() throws IOException { |
| AssetManager am = InstrumentationRegistry.getTargetContext().getAssets(); |
| String path = FontTestUtil.getTtcFontFileInAsset(); |
| ByteBuffer buffer = mmap(am, path); |
| for (Pair<Integer, Boolean> style : FontTestUtil.getAllStyles()) { |
| int weight = style.first.intValue(); |
| boolean italic = style.second.booleanValue(); |
| int ttcIndex = FontTestUtil.getTtcIndexFromStyle(weight, italic); |
| |
| int packed = FontFileUtil.analyzeStyle(buffer, ttcIndex, null); |
| assertEquals(path + "#" + ttcIndex, weight, FontFileUtil.unpackWeight(packed)); |
| assertEquals(path + "#" + ttcIndex, italic, FontFileUtil.unpackItalic(packed)); |
| } |
| } |
| |
| @Test |
| public void testVariationFont() throws IOException { |
| AssetManager am = InstrumentationRegistry.getTargetContext().getAssets(); |
| String path = FontTestUtil.getVFFontInAsset(); |
| ByteBuffer buffer = mmap(am, path); |
| for (Pair<Integer, Boolean> style : FontTestUtil.getAllStyles()) { |
| int weight = style.first.intValue(); |
| boolean italic = style.second.booleanValue(); |
| String axes = FontTestUtil.getVarSettingsFromStyle(weight, italic); |
| |
| int packed = FontFileUtil.analyzeStyle(buffer, 0, |
| FontVariationAxis.fromFontVariationSettings(axes)); |
| assertEquals(path + "#" + axes, weight, FontFileUtil.unpackWeight(packed)); |
| assertEquals(path + "#" + axes, italic, FontFileUtil.unpackItalic(packed)); |
| } |
| } |
| } |