wrapping the Dispatcher.IO and making it injectable for testing

vector/src/main/java/im/vector/app/core/di/VectorComponent.kt

@@ -26,6 +26,7 @@ import im.vector.app.EmojiCompatFontProvider
 import im.vector.app.EmojiCompatWrapper
 import im.vector.app.VectorApplication
 import im.vector.app.core.dialogs.UnrecognizedCertificateDialog
+import im.vector.app.core.dispatchers.CoroutineDispatchers
 import im.vector.app.core.error.ErrorFormatter
 import im.vector.app.core.network.WifiDetector
 import im.vector.app.core.pushers.PushersManager
@@ -171,6 +172,8 @@ interface VectorComponent {
 
     fun appCoroutineScope(): CoroutineScope
 
+    fun coroutineDispatchers(): CoroutineDispatchers
+
     fun jitsiActiveConferenceHolder(): JitsiActiveConferenceHolder
 
     @Component.Factory

vector/src/main/java/im/vector/app/core/di/VectorModule.kt

@@ -23,6 +23,7 @@ import android.content.res.Resources
 import dagger.Binds
 import dagger.Module
 import dagger.Provides
+import im.vector.app.core.dispatchers.CoroutineDispatchers
 import im.vector.app.core.error.DefaultErrorFormatter
 import im.vector.app.core.error.ErrorFormatter
 import im.vector.app.features.invite.AutoAcceptInvites
@@ -33,6 +34,7 @@ import im.vector.app.features.pin.PinCodeStore
 import im.vector.app.features.pin.SharedPrefPinCodeStore
 import im.vector.app.features.ui.SharedPreferencesUiStateRepository
 import im.vector.app.features.ui.UiStateRepository
+import kotlinx.coroutines.CoroutineDispatcher
 import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.SupervisorJob
@@ -105,6 +107,12 @@ abstract class VectorModule {
         fun providesApplicationCoroutineScope(): CoroutineScope {
             return CoroutineScope(SupervisorJob() + Dispatchers.Main)
         }
+
+        @Provides
+        @JvmStatic
+        fun providesCoroutineDispatchers(): CoroutineDispatchers {
+            return CoroutineDispatchers(io = Dispatchers.IO)
+        }
     }
 
     @Binds

vector/src/main/java/im/vector/app/core/dispatchers/CoroutineDispatchers.kt

@@ -0,0 +1,22 @@
+/*
+ * Copyright (c) 2021 New Vector Ltd
+ *
+ * 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 im.vector.app.core.dispatchers
+
+import kotlinx.coroutines.CoroutineDispatcher
+import javax.inject.Inject
+
+data class CoroutineDispatchers @Inject constructor(val io: CoroutineDispatcher)