Fix engine start/stop for integration tests

src/test/kotlin/integration/BaseTest.kt

@@ -14,6 +14,8 @@ import io.ktor.util.KtorExperimentalAPI
 import io.lettuce.core.RedisClient
 import io.lettuce.core.api.sync.RedisCommands
 import kotlinx.coroutines.ExperimentalCoroutinesApi
+import kotlinx.coroutines.isActive
+import org.junit.jupiter.api.AfterAll
 import org.junit.jupiter.api.AfterEach
 import org.junit.jupiter.api.BeforeAll
 import org.junit.jupiter.api.BeforeEach
@@ -32,9 +34,10 @@ abstract class BaseTest : KoinTest {
             .apply { setUri(config.rabbitmq) }
             .newConnection()
             .createChannel()
-        private val engine = TestApplicationEngine(createTestEnvironment())
     }
 
+    private val engine = TestApplicationEngine(createTestEnvironment())
+
     protected fun <R> withIntegrationApplication(
         test: TestApplicationEngine.() -> R
     ): R {
@@ -43,17 +46,24 @@ abstract class BaseTest : KoinTest {
 
     @BeforeAll
     fun before() {
-        if (init == false) {
         engine.start()
         engine.application.module(TEST)
+        if (init == false) {
             init = true
             get<Migrations>().run {
                 forceAllDown()
                 run()
             }
+        }
         get<Connection>()
             .sendQuery("start transaction;", listOf())
     }
+
+    @AfterAll
+    fun after() {
+        get<Connection>()
+            .sendQuery("rollback;", listOf())
+        engine.stop(0, 0)
     }
 
     @BeforeEach

src/test/kotlin/integration/CitizenTest.kt

@@ -1,4 +1,4 @@
-package integration.citizen
+package integration
 
 import integration.BaseTest
 import integration.asserts.`And have property`

src/test/kotlin/integration/LoginTest.kt

@@ -1,4 +1,4 @@
-package integration.auth
+package integration
 
 import integration.BaseTest
 import integration.asserts.`And the response should not be null`

src/test/kotlin/integration/RegisterTest.kt

@@ -1,6 +1,5 @@
-package integration.auth
+package integration
 
-import integration.BaseTest
 import integration.asserts.`Then the response should be`
 import integration.asserts.`when`.`When I send a POST request`
 import io.ktor.http.HttpStatusCode