| /* |
| * Copyright 2020 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 androidx.datastore.core |
| |
| import androidx.datastore.TestingSerializerConfig |
| import java.io.IOException |
| import java.io.InputStream |
| import java.io.OutputStream |
| |
| class TestingSerializer( |
| val config: TestingSerializerConfig = TestingSerializerConfig(), |
| ) : Serializer<Byte> { |
| override suspend fun readFrom(input: InputStream): Byte { |
| // hack to make failReadWithCorruptionException during runtime |
| var failReadWithCorruptionException = config.failReadWithCorruptionException |
| if (!config.listOfFailReadWithCorruptionException.isEmpty()) { |
| failReadWithCorruptionException = config.listOfFailReadWithCorruptionException.get(0) |
| config.listOfFailReadWithCorruptionException = |
| config.listOfFailReadWithCorruptionException.drop(1) |
| } |
| if (failReadWithCorruptionException) { |
| throw CorruptionException( |
| "CorruptionException", |
| IOException() |
| ) |
| } |
| |
| if (config.failingRead) { |
| throw IOException("I was asked to fail on reads") |
| } |
| |
| val read = input.read() |
| if (read == -1) { |
| return 0 |
| } |
| return read.toByte() |
| } |
| |
| override suspend fun writeTo(t: Byte, output: OutputStream) { |
| if (config.failingWrite) { |
| throw IOException("I was asked to fail on writes") |
| } |
| output.write(t.toInt()) |
| } |
| |
| override val defaultValue: Byte |
| get() = config.defaultValue |
| } |
