finish session controller tests

server/src/test/kotlin/routes/session/SessionControllerTest.kt

@@ -1,22 +1,25 @@
 package routes.session
 
+import http.CustomHeader
 import http.Routes
 import io.kotest.matchers.collections.shouldHaveSize
 import io.kotest.matchers.shouldBe
 import io.ktor.client.request.*
 import io.ktor.client.statement.*
 import io.ktor.http.*
 import io.ktor.server.testing.*
+import java.util.UUID
 import org.junit.jupiter.api.Test
 import testCore.shouldMatchJson
 import util.ApplicationTest
 import util.OnlineConstants
 import util.ServerGlobals.sessionStore
+import util.makeSession
 
 class SessionControllerTest : ApplicationTest() {
     @Test
     fun `Should respond to a begin session request`() = testApplication {
-        val response = client.post(Routes.BEGIN_SESSION, ::buildRequest)
+        val response = client.post(Routes.BEGIN_SESSION, ::buildSessionRequest)
         response.status shouldBe HttpStatusCode.OK
 
         sessionStore.getAll().shouldHaveSize(1)
@@ -33,9 +36,44 @@ class SessionControllerTest : ApplicationTest() {
                 .trimIndent()
     }
 
-    @Test fun `Should reject an update achievement call without a session`() = testApplication {}
+    @Test
+    fun `Should reject an update achievement call without a session`() = testApplication {
+        val response = client.post(Routes.ACHIEVEMENT_COUNT, ::buildAchievementUpdateRequest)
+        response.status shouldBe HttpStatusCode.Unauthorized
+    }
+
+    @Test
+    fun `Should be able to update achievement count`() = testApplication {
+        val session = makeSession(achievementCount = 4)
+        sessionStore.put(session)
+
+        val response =
+            client.post(Routes.ACHIEVEMENT_COUNT) {
+                buildAchievementUpdateRequest(this, session.id)
+            }
+        response.status shouldBe HttpStatusCode.NoContent
+
+        val updatedSession = sessionStore.get(session.id)
+        updatedSession.achievementCount shouldBe 8
+    }
+
+    private fun buildAchievementUpdateRequest(
+        builder: HttpRequestBuilder,
+        sessionId: UUID? = null,
+    ) {
+        builder.contentType(ContentType.Application.Json)
+        sessionId?.let { builder.header(CustomHeader.SESSION_ID, sessionId) }
+        builder.setBody(
+            """
+                {
+                    "achievementCount": 8
+                }
+            """
+                .trimIndent()
+        )
+    }
 
-    private fun buildRequest(builder: HttpRequestBuilder) {
+    private fun buildSessionRequest(builder: HttpRequestBuilder) {
         builder.contentType(ContentType.Application.Json)
         builder.setBody(
             """