new: add Koin-based DI validation for appModule

gradle/libs.versions.toml

@@ -35,6 +35,7 @@ koin-compose = { module = "io.insert-koin:koin-compose" }
 koin-compose-viewmodel = { module = "io.insert-koin:koin-compose-viewmodel" }
 koin-core = { module = "io.insert-koin:koin-core" }
 koin-core-viewmodel = { module = "io.insert-koin:koin-core-viewmodel" }
+koin-test = { module = "io.insert-koin:koin-test" }
 kermit = { module = "co.touchlab:kermit", version.ref = "kermit" }
 kotlin-test = { module = "org.jetbrains.kotlin:kotlin-test", version.ref = "kotlin" }
 kotlinx-browser = { module = "org.jetbrains.kotlinx:kotlinx-browser", version.ref = "kotlinxBrowser" }

shared/build.gradle.kts

@@ -92,6 +92,11 @@ kotlin {
         commonTest.dependencies {
             implementation(libs.kotlin.test)
         }
+        jvmTest.dependencies {
+            // Koin configuration validation
+            implementation(project.dependencies.platform(libs.koin.bom))
+            implementation(libs.koin.test)
+        }
         jsMain.dependencies {
             implementation(libs.wrappers.browser)
         }

shared/src/commonMain/kotlin/fr/ajaury/gwenedeg/App.kt

@@ -18,19 +18,25 @@ import fr.ajaury.gwenedeg.subtitle.di.subtitleModule
 import fr.ajaury.gwenedeg.theme.GwenedegTheme
 import org.koin.compose.KoinApplication
 import org.koin.dsl.koinConfiguration
+import org.koin.dsl.module
+
+
+val appModule = module {
+    includes(
+        loggingModule,
+        sharedModule,
+        audioPlayerModule,
+        coroutinesModule,
+        subtitleModule
+    )
+}
 
 @Composable
 @Preview
 fun App() {
     KoinApplication(
         configuration = koinConfiguration {
-            modules(
-                sharedModule,
-                audioPlayerModule,
-                coroutinesModule,
-                loggingModule,
-                subtitleModule
-            )
+            modules(appModule)
         },
     ) {
         val serializer = SnapshotStateListSerializer<Route>()

shared/src/jvmTest/kotlin/fr/ajaury/gwenedeg/di/KoinModulesTest.kt

@@ -0,0 +1,23 @@
+package fr.ajaury.gwenedeg.di
+
+import fr.ajaury.gwenedeg.appModule
+import fr.ajaury.gwenedeg.player.di.audioPlayerModule
+import org.koin.core.annotation.KoinExperimentalAPI
+import org.koin.test.verify.verify
+import kotlin.test.Test
+
+/**
+ * Statically validates the Koin graph: [verify] inspects every definition's constructor and fails
+ * the build if a dependency cannot be resolved from the declared modules. Acts as a compile-/build-
+ * time safety net so DI misconfiguration surfaces in CI rather than at runtime.
+ *
+ * Uses the JVM platform bindings (the `actual` [audioPlayerModule]); the shared graph is identical
+ * across targets, so verifying it here covers all of them.
+ */
+class KoinModulesTest {
+    @OptIn(KoinExperimentalAPI::class)
+    @Test
+    fun koinConfigurationIsValid() {
+        appModule.verify()
+    }
+}