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feat(perf): add baseline profile and macrobenchmark module
Add static baseline-prof.txt covering startup, Compose runtime, navigation, and coroutine paths. Add :apps:flipcash:benchmark macrobenchmark module with startup benchmark and baseline profile generator tests. Add profileinstaller dependency to the app. Fix .gitignore to use **/build/ pattern.
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‎.gitignore‎

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/local.properties
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.idea/
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.DS_Store
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/build
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**/build/
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/captures
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.externalNativeBuild
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.cxx

‎apps/flipcash/app/build.gradle.kts‎

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implementation(libs.timber)
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implementation(libs.bugsnag)
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implementation(libs.androidx.profileinstaller)
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testImplementation(libs.junit)
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testImplementation(libs.kotlin.test.junit)
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}

‎apps/flipcash/app/src/main/baseline-prof.txt‎

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# Baseline profile for Flipcash — covers cold start and Compose rendering.
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# Generated profiles from :apps:flipcash:benchmark will replace this file.
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# Application + Activity startup
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HSPLcom/flipcash/app/FlipcashApp;->onCreate()V
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HSPLcom/flipcash/app/MainActivity;->onCreate(Landroid/os/Bundle;)V
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# Hilt dependency injection (startup-critical)
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HSPLdagger/hilt/android/internal/**;->**(**)**
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HSPLcom/flipcash/app/FlipcashApp_GeneratedInjector;->**(**)**
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HSPLcom/flipcash/app/MainActivity_GeneratedInjector;->**(**)**
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# Jetpack Compose runtime (critical for first frame)
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HSPLandroidx/compose/runtime/**;->**(**)**
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HSPLandroidx/compose/ui/**;->**(**)**
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HSPLandroidx/compose/foundation/**;->**(**)**
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HSPLandroidx/compose/material/**;->**(**)**
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HSPLandroidx/compose/animation/**;->**(**)**
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# Compose layout and drawing
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HSPLandroidx/compose/ui/platform/AndroidComposeView;->**(**)**
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HSPLandroidx/compose/ui/node/**;->**(**)**
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# Navigation
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HSPLandroidx/navigation/**;->**(**)**
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# Lifecycle
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HSPLandroidx/lifecycle/**;->**(**)**
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HSPLandroidx/activity/**;->**(**)**
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# Kotlinx coroutines (startup flows)
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HSPLkotlinx/coroutines/**;->**(**)**
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# Kotlinx serialization (used in session/config deserialization)
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HSPLkotlinx/serialization/**;->**(**)**
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# Coil image loading
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HSPLcoil3/**;->**(**)**
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# App theme and UI setup
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HSPLcom/getcode/theme/**;->**(**)**
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HSPLcom/getcode/ui/core/**;->**(**)**
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HSPLcom/getcode/ui/components/**;->**(**)**

‎apps/flipcash/benchmark/build.gradle.kts‎

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plugins {
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id("com.android.test")
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}
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val contributorsSigningConfig = ContributorsSignatory(rootProject)
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android {
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namespace = "com.flipcash.benchmark"
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compileSdk = libs.versions.android.compileSdk.get().toInt()
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defaultConfig {
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minSdk = 29
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targetSdk = libs.versions.android.targetSdk.get().toInt()
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testInstrumentationRunner = "androidx.test.runner.AndroidJUnitRunner"
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testInstrumentationRunnerArguments["androidx.benchmark.suppressErrors"] =
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"EMULATOR,DEBUGGABLE"
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}
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signingConfigs {
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create("contributors") {
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storeFile = contributorsSigningConfig.keystore
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storePassword = contributorsSigningConfig.keystorePassword
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keyAlias = contributorsSigningConfig.keyAlias
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keyPassword = contributorsSigningConfig.keyPassword
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}
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}
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buildTypes {
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debug {
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signingConfig = signingConfigs.getByName("contributors")
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}
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}
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compileOptions {
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sourceCompatibility(libs.versions.android.java.get())
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targetCompatibility(libs.versions.android.java.get())
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}
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kotlin {
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jvmToolchain(libs.versions.android.java.get().toInt())
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}
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targetProjectPath = ":apps:flipcash:app"
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experimentalProperties["android.experimental.self-instrumenting"] = true
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}
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dependencies {
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implementation(libs.androidx.benchmark.macro.junit4)
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implementation(libs.androidx.test.runner)
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implementation(libs.androidx.junit)
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}

‎apps/flipcash/benchmark/src/main/AndroidManifest.xml‎

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<?xml version="1.0" encoding="utf-8"?>
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<manifest xmlns:android="http://schemas.android.com/apk/res/android">
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</manifest>

‎apps/flipcash/benchmark/src/main/kotlin/com/flipcash/benchmark/BaselineProfileGenerator.kt‎

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package com.flipcash.benchmark
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import androidx.benchmark.macro.junit4.BaselineProfileRule
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import androidx.test.ext.junit.runners.AndroidJUnit4
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import androidx.test.filters.LargeTest
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import org.junit.Rule
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import org.junit.Test
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import org.junit.runner.RunWith
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@RunWith(AndroidJUnit4::class)
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@LargeTest
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class BaselineProfileGenerator {
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@get:Rule
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val rule = BaselineProfileRule()
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@Test
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fun generateBaselineProfile() {
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rule.collect(
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packageName = "com.flipcash.app.android",
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) {
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// Cold start the app — this covers the critical startup path
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pressHome()
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startActivityAndWait()
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// TODO: Add user journey interactions here to cover hot paths
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// e.g., navigating to balance, scanning, etc.
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}
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}
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}

‎apps/flipcash/benchmark/src/main/kotlin/com/flipcash/benchmark/StartupBenchmark.kt‎

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package com.flipcash.benchmark
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import androidx.benchmark.macro.BaselineProfileMode
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import androidx.benchmark.macro.CompilationMode
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import androidx.benchmark.macro.StartupMode
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import androidx.benchmark.macro.StartupTimingLegacyMetric
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import androidx.benchmark.macro.junit4.MacrobenchmarkRule
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import androidx.test.ext.junit.runners.AndroidJUnit4
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import androidx.test.filters.LargeTest
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import org.junit.Rule
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import org.junit.Test
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import org.junit.runner.RunWith
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@RunWith(AndroidJUnit4::class)
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@LargeTest
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class StartupBenchmark {
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@get:Rule
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val rule = MacrobenchmarkRule()
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@Test
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fun startupNoCompilation() = benchmark(CompilationMode.None())
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@Test
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fun startupPartialCompilation() = benchmark(
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CompilationMode.Partial(
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baselineProfileMode = BaselineProfileMode.Disable,
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warmupIterations = 3,
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)
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)
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// Requires a non-debuggable (release/benchmark) build to install the baseline profile.
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// Add a 'benchmark' buildType to the app module to enable this test.
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// @Test
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// fun startupBaselineProfile() = benchmark(
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// CompilationMode.Partial(baselineProfileMode = BaselineProfileMode.Require)
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// )
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@Test
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fun startupFullCompilation() = benchmark(CompilationMode.Full())
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private fun benchmark(compilationMode: CompilationMode) {
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rule.measureRepeated(
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packageName = "com.flipcash.app.android",
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metrics = listOf(StartupTimingLegacyMetric()),
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compilationMode = compilationMode,
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iterations = 5,
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startupMode = StartupMode.COLD,
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) {
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pressHome()
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startActivityAndWait()
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}
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}
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}

‎gradle/libs.versions.toml‎

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lib-phone-number-google = "9.0.31"
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zxing = "3.5.4"
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androidx-benchmark-macro = "1.4.0"
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androidx-profileinstaller = "1.4.1"
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androidx-test-runner = "1.7.0"
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junit = "4.13.2"
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androidx-junit = "1.3.0"
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rinku-compose = { module = "dev.theolm:rinku-compose-ext", version.ref = "rinku" }
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event-bus = { module = "io.github.hoc081098:channel-event-bus", version.ref = "event-bus" }
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# Baseline Profile / Benchmark
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androidx-benchmark-macro-junit4 = { module = "androidx.benchmark:benchmark-macro-junit4", version.ref = "androidx-benchmark-macro" }
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androidx-profileinstaller = { module = "androidx.profileinstaller:profileinstaller", version.ref = "androidx-profileinstaller" }
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# Testing
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androidx-test-runner = { module = "androidx.test:runner", version.ref = "androidx-test-runner" }
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androidx-junit = { module = "androidx.test.ext:junit", version.ref = "androidx-junit" }

‎settings.gradle.kts‎

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include(
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// app containers
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":apps:flipcash:app",
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":apps:flipcash:benchmark",
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// flipcash modules
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":apps:flipcash:core",

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