WIP integration with sdk-test-proxy

TODO can we decrease the 1m 55s this takes to start?
TODO can we reduce the risk of one test case or test run contaminating another?
TODO don't run if we’re not going to run NetworkConnectivityTests?

Resolves #1003.

.github/workflows/emulate.yml

@@ -16,13 +16,18 @@ jobs:
             excludeModules: true
     steps:
       - uses: actions/checkout@v3
+        with:
+          submodules: recursive
 
       # Gradle 7 requires Java 11 to run
       - uses: actions/setup-java@v3
         with:
           distribution: zulu
           java-version: '19'
 
+      - name: Start SDK test proxy server
+        run: cd external/sdk-test-proxy && ./start-service
+
       - uses: reactivecircus/android-emulator-runner@v2
         with:
           api-level: ${{ matrix.api-level }}

.gitmodules

@@ -0,0 +1,3 @@
+[submodule "external/sdk-test-proxy"]
+	path = external/sdk-test-proxy
+	url = [email protected]:ably/sdk-test-proxy.git

CONTRIBUTING.md

@@ -8,6 +8,10 @@ The version of Gradle that this project uses is specified by the `distributionUr
 
 If you are using [`asdf`](https://asdf-vm.com) to manage tool versions, then you can rely on the `.tool-versions` file in this repository, which is configured to use an appropriate version of Java.
 
+## Running the test proxy server
+
+In order to run the `NetworkConnectivityTests`, you will need to be running an instance of the [SDK Test Proxy](https://github.com/ably/sdk-test-proxy) on your development machine. You can do this by executing `./gradlew run` inside the `external/sdk-test-proxy` directory.
+
 ## Development
 
 This repository is structured as a Gradle [Multi-Project Build](https://docs.gradle.org/current/userguide/multi_project_builds.html).

android-test-common/build.gradle

@@ -6,22 +6,17 @@ plugins {
     id 'com.android.library'
     id 'kotlin-android'
     id 'org.jlleitschuh.gradle.ktlint'
+    id 'org.jetbrains.kotlin.plugin.serialization' version "$kotlin_version"
 }
 
 dependencies {
     implementation project(':core-sdk')
     implementation "io.ably:ably-android:$ably_core_version"
 
-    // Ktor dependencies for Layer 7 proxy in NetworkConnectivityTest
-    implementation "io.ktor:ktor-server-websockets:$ktor_version"
-    implementation "io.ktor:ktor-server-cio:$ktor_version"
-    implementation "io.ktor:ktor-server-call-logging:$ktor_version"
     implementation "io.ktor:ktor-client-cio:$ktor_version"
-    implementation "io.ktor:ktor-client-websockets:$ktor_version"
     implementation "io.ktor:ktor-client-logging:$ktor_version"
-    implementation "uk.uuid.slf4j:slf4j-android:1.7.36-0"
 
-    implementation 'org.msgpack:msgpack-core:0.9.3'
+    implementation 'org.jetbrains.kotlinx:kotlinx-serialization-json:1.4.1'
 }
 
 android {