Move MediaPlayer from messages module to new dedicated library module (#1654)

libraries/mediaplayer/test/build.gradle.kts

@@ -0,0 +1,31 @@
+/*
+ * 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.
+ */
+
+plugins {
+    id("io.element.android-library")
+}
+
+android {
+    namespace = "io.element.android.libraries.mediaplayer.test"
+}
+
+dependencies {
+    api(projects.libraries.mediaplayer.api)
+    implementation(projects.tests.testutils)
+
+    implementation(libs.coroutines.test)
+    implementation(libs.test.truth)
+}

libraries/mediaplayer/test/src/main/kotlin/io/element/android/libraries/mediaplayer/test/FakeMediaPlayer.kt

@@ -0,0 +1,71 @@
+/*
+ * 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.mediaplayer.test
+
+import io.element.android.libraries.mediaplayer.api.MediaPlayer
+import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.coroutines.flow.StateFlow
+import kotlinx.coroutines.flow.asStateFlow
+import kotlinx.coroutines.flow.update
+
+/**
+ * Fake implementation of [MediaPlayer] for testing purposes.
+ */
+class FakeMediaPlayer : MediaPlayer {
+    private val _state = MutableStateFlow(MediaPlayer.State(false, null, 0L))
+
+    override val state: StateFlow<MediaPlayer.State> = _state.asStateFlow()
+
+    override fun acquireControlAndPlay(uri: String, mediaId: String, mimeType: String) {
+        _state.update {
+            it.copy(
+                isPlaying = true,
+                mediaId = mediaId,
+                currentPosition = it.currentPosition + 1000L,
+            )
+        }
+    }
+
+    override fun play() {
+        _state.update {
+            it.copy(
+                isPlaying = true,
+                currentPosition = it.currentPosition + 1000L,
+            )
+        }
+    }
+
+    override fun pause() {
+        _state.update {
+            it.copy(
+                isPlaying = false,
+            )
+        }
+    }
+
+    override fun seekTo(positionMs: Long) {
+        _state.update {
+            it.copy(
+                currentPosition = positionMs,
+            )
+        }
+    }
+
+    override fun close() {
+        // no-op
+    }
+}