Initial CI setup test

Added code coverage report generation (for future CI stuff)
Fixed a flaky unit test

app/build.gradle

@@ -124,6 +124,7 @@ android {
         debug {
             isDefault true
             minifyEnabled false
+            enableUnitTestCoverage true
         }
     }
 
@@ -201,6 +202,27 @@ android {
             }
         }
     }
+
+    task testPlayDebugUnitTestCoverageReport(type: JacocoReport, dependsOn: "testPlayDebugUnitTest") {
+        reports {
+            xml.enabled = true
+        }
+
+        // Add files that should not be listed in the report (e.g. generated Files from dagger)
+        def fileFilter = []
+        def mainSrc = "$projectDir/src/main/java"
+        def kotlinDebugTree = fileTree(dir: "${buildDir}/tmp/kotlin-classes/playDebug", excludes: fileFilter)
+
+        // Compiled Kotlin class files are written into build-variant-specific subdirectories of 'build/tmp/kotlin-classes'.
+        classDirectories.from = files([kotlinDebugTree])
+
+        // To produce an accurate report, the bytecode is mapped back to the original source code.
+        sourceDirectories.from = files([mainSrc])
+
+        // Execution data generated when running the tests against classes instrumented by the JaCoCo agent.
+        // This is enabled with 'enableUnitTestCoverage' in the 'debug' build type.
+        executionData.from = "${project.buildDir}/outputs/unit_test_code_coverage/playDebugUnitTest/testPlayDebugUnitTest.exec"
+    }
 }
 
 dependencies {

app/src/test/java/org/thoughtcrime/securesms/conversation/v2/ConversationViewModelTest.kt

@@ -10,12 +10,14 @@ import org.hamcrest.CoreMatchers.nullValue
 import org.hamcrest.MatcherAssert.assertThat
 import org.junit.Before
 import org.junit.Test
+import org.mockito.Mockito
 import org.mockito.Mockito.anyLong
 import org.mockito.Mockito.anySet
 import org.mockito.Mockito.verify
 import org.mockito.kotlin.any
 import org.mockito.kotlin.mock
 import org.mockito.kotlin.whenever
+import org.mockito.verification.VerificationMode
 import org.session.libsession.utilities.recipients.Recipient
 import org.thoughtcrime.securesms.BaseViewModelTest
 import org.thoughtcrime.securesms.database.Storage
@@ -49,7 +51,8 @@ class ConversationViewModelTest: BaseViewModelTest() {
 
         viewModel.saveDraft(draft)
 
-        verify(repository).saveDraft(threadId, draft)
+        // The above is an async process to wait 100ms to give it a chance to complete
+        verify(repository, Mockito.timeout(100).times(1)).saveDraft(threadId, draft)
     }
 
     @Test