Add Session Verification flow (#197)

libraries/matrix/test/src/main/kotlin/io/element/android/libraries/matrix/test/FakeMatrixClient.kt

@@ -22,16 +22,19 @@ import io.element.android.libraries.matrix.api.core.SessionId
 import io.element.android.libraries.matrix.api.media.MediaResolver
 import io.element.android.libraries.matrix.api.room.MatrixRoom
 import io.element.android.libraries.matrix.api.room.RoomSummaryDataSource
+import io.element.android.libraries.matrix.api.verification.SessionVerificationService
 import io.element.android.libraries.matrix.test.media.FakeMediaResolver
 import io.element.android.libraries.matrix.test.room.FakeMatrixRoom
 import io.element.android.libraries.matrix.test.room.FakeRoomSummaryDataSource
+import io.element.android.libraries.matrix.test.verification.FakeSessionVerificationService
 import kotlinx.coroutines.delay
 
 class FakeMatrixClient(
     override val sessionId: SessionId = A_SESSION_ID,
     private val userDisplayName: Result<String> = Result.success(A_USER_NAME),
     private val userAvatarURLString: Result<String> = Result.success(AN_AVATAR_URL),
-    override val roomSummaryDataSource: RoomSummaryDataSource = FakeRoomSummaryDataSource()
+    override val roomSummaryDataSource: RoomSummaryDataSource = FakeRoomSummaryDataSource(),
+    private val sessionVerificationService: FakeSessionVerificationService = FakeSessionVerificationService()
 ) : MatrixClient {
 
     private var logoutFailure: Throwable? = null
@@ -72,4 +75,8 @@ class FakeMatrixClient(
     override suspend fun loadMediaThumbnail(url: String, width: Long, height: Long): Result<ByteArray> {
         return Result.success(ByteArray(0))
     }
+
+    override fun sessionVerificationService(): SessionVerificationService = sessionVerificationService
+
+    override fun onSlidingSyncUpdate() {}
 }

libraries/matrix/test/src/main/kotlin/io/element/android/libraries/matrix/test/verification/FakeSessionVerificationService.kt

@@ -0,0 +1,90 @@
+/*
+ * Copyright (c) 2023 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 io.element.android.libraries.matrix.test.verification
+
+import io.element.android.libraries.matrix.api.verification.SessionVerificationService
+import io.element.android.libraries.matrix.api.verification.VerificationFlowState
+import io.element.android.libraries.matrix.api.verification.SessionVerifiedStatus
+import io.element.android.libraries.matrix.api.verification.VerificationEmoji
+import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.coroutines.flow.StateFlow
+
+class FakeSessionVerificationService : SessionVerificationService {
+    private val _isReady = MutableStateFlow(false)
+    private val _sessionVerifiedStatus = MutableStateFlow<SessionVerifiedStatus>(SessionVerifiedStatus.Unknown)
+    private var _verificationFlowState = MutableStateFlow<VerificationFlowState>(VerificationFlowState.Initial)
+    private var emojiList = emptyList<VerificationEmoji>()
+    var shouldFail = false
+
+    override val verificationFlowState: StateFlow<VerificationFlowState>
+        get() = _verificationFlowState
+
+    override val sessionVerifiedStatus: StateFlow<SessionVerifiedStatus> = _sessionVerifiedStatus
+
+    override val isReady: StateFlow<Boolean> = _isReady
+
+    override fun requestVerification() {
+        _verificationFlowState.value = VerificationFlowState.AcceptedVerificationRequest
+        _verificationFlowState.value = VerificationFlowState.StartedSasVerification
+        _verificationFlowState.value = VerificationFlowState.ReceivedVerificationData(emojiList)
+    }
+
+    override fun cancelVerification() {
+        _verificationFlowState.value = VerificationFlowState.Canceled
+    }
+
+    override fun approveVerification() {
+        if (!shouldFail) {
+            _verificationFlowState.value = VerificationFlowState.Finished
+        } else {
+            _verificationFlowState.value = VerificationFlowState.Failed
+        }
+    }
+
+    override fun declineVerification() {
+        if (!shouldFail) {
+            _verificationFlowState.value = VerificationFlowState.Canceled
+        } else {
+            _verificationFlowState.value = VerificationFlowState.Failed
+        }
+    }
+
+    override fun startVerification() {
+        _verificationFlowState.value = VerificationFlowState.StartedSasVerification
+        _verificationFlowState.value = VerificationFlowState.ReceivedVerificationData(emojiList)
+    }
+
+    fun givenVerifiedStatus(status: SessionVerifiedStatus) {
+        _sessionVerifiedStatus.value = status
+    }
+
+    fun givenVerificationFlowState(state: VerificationFlowState) {
+        _verificationFlowState.value = state
+    }
+
+    fun givenIsReady(value: Boolean) {
+        _isReady.value = value
+    }
+
+    fun givenEmojiList(emojis: List<VerificationEmoji>) {
+        this.emojiList = emojis
+    }
+
+    override fun reset() {
+        _verificationFlowState.value = VerificationFlowState.Initial
+    }
+}