model: don't unit test against the live server

Signed-off-by: Harsh Shandilya <me@msfjarvis.dev>

model/src/main/java/dev/msfjarvis/lobsters/injection/ApiModule.kt

@@ -15,6 +15,13 @@ import retrofit2.create
 @Module
 @InstallIn(ActivityComponent::class)
 object ApiModule {
+
+  @Provides
+  @BaseUrlQualifier
+  fun provideBaseUrl(): String {
+    return LobstersApi.BASE_URL
+  }
+
   @Provides
   fun provideClient(): OkHttpClient {
     return OkHttpClient.Builder()
@@ -29,10 +36,11 @@ object ApiModule {
   fun provideRetrofit(
     client: Lazy<OkHttpClient>,
     moshi: Lazy<Moshi>,
+    @BaseUrlQualifier baseUrl: String
   ): Retrofit {
     return Retrofit.Builder()
       .client(client.get())
-      .baseUrl(LobstersApi.BASE_URL)
+      .baseUrl(baseUrl)
       .addConverterFactory(MoshiConverterFactory.create(moshi.get()))
       .build()
   }

model/src/main/java/dev/msfjarvis/lobsters/injection/BaseUrlQualifier.kt

@@ -0,0 +1,11 @@
+package dev.msfjarvis.lobsters.injection
+
+import javax.inject.Qualifier
+
+/**
+ * Qualifier for a string value that needs to be provided to the [ApiModule.provideRetrofit] method
+ * as the base URL of our API.
+ */
+@Qualifier
+@Retention(AnnotationRetention.RUNTIME)
+annotation class BaseUrlQualifier

model/src/test/java/dev/msfjarvis/lobsters/data/api/LobstersApiTest.kt

@@ -22,7 +22,8 @@ class LobstersApiTest {
     private val okHttp = ApiModule.provideClient()
     private val retrofit = ApiModule.provideRetrofit(
       { okHttp },
-      { MoshiModule.provideMoshi() }
+      { MoshiModule.provideMoshi() },
+      "http://localhost:8080/"
     )
     private val apiClient = ApiModule.provideApi(retrofit)