Introduce IngressServiceTest to test the dev.restate.Ingress/Invoke m…

…ethod (#150)

tests/src/test/kotlin/dev/restate/e2e/runtime/IngressServiceTest.kt

@@ -0,0 +1,127 @@
+package dev.restate.e2e.runtime
+
+import com.fasterxml.jackson.databind.JsonNode
+import com.fasterxml.jackson.databind.ObjectMapper
+import dev.restate.e2e.Containers
+import dev.restate.e2e.services.counter.CounterGrpc
+import dev.restate.e2e.services.counter.CounterGrpc.CounterBlockingStub
+import dev.restate.e2e.services.counter.CounterProto
+import dev.restate.e2e.services.counter.counterAddRequest
+import dev.restate.e2e.utils.InjectBlockingStub
+import dev.restate.e2e.utils.InjectGrpcIngressURL
+import dev.restate.e2e.utils.RestateDeployer
+import dev.restate.e2e.utils.RestateDeployerExtension
+import dev.restate.generated.IngressGrpc.IngressBlockingStub
+import dev.restate.generated.invokeRequest
+import java.net.URI
+import java.net.URL
+import java.net.http.HttpClient
+import java.net.http.HttpRequest
+import java.net.http.HttpRequest.BodyPublishers
+import java.net.http.HttpResponse
+import java.nio.charset.StandardCharsets
+import java.util.UUID
+import org.assertj.core.api.Assertions.assertThat
+import org.awaitility.kotlin.await
+import org.awaitility.kotlin.matches
+import org.awaitility.kotlin.untilCallTo
+import org.junit.jupiter.api.Test
+import org.junit.jupiter.api.extension.RegisterExtension
+
+/** Test the Connect ingress support */
+class IngressServiceTest {
+
+  companion object {
+    @RegisterExtension
+    val deployerExt: RestateDeployerExtension =
+        RestateDeployerExtension(
+            RestateDeployer.Builder()
+                .withEnv(Containers.getRestateEnvironment())
+                .withServiceEndpoint(Containers.JAVA_COUNTER_SERVICE_SPEC)
+                .build())
+
+    private val objMapper = ObjectMapper()
+
+    private val jacksonBodySubscriber: HttpResponse.BodySubscriber<JsonNode> =
+        HttpResponse.BodySubscribers.mapping(
+            HttpResponse.BodySubscribers.ofString(StandardCharsets.UTF_8), objMapper::readTree)
+
+    private val jacksonBodyHandler: HttpResponse.BodyHandler<JsonNode> =
+        HttpResponse.BodyHandler { jacksonBodySubscriber }
+
+    private fun jacksonBodyPublisher(value: Any): HttpRequest.BodyPublisher {
+      return BodyPublishers.ofString(objMapper.writeValueAsString(value))
+    }
+  }
+
+  @Test
+  fun invokeAddThroughConnect(
+      @InjectGrpcIngressURL httpEndpointURL: URL,
+      @InjectBlockingStub counterClient: CounterBlockingStub
+  ) {
+    val counterName = UUID.randomUUID().toString()
+
+    val client = HttpClient.newHttpClient()
+
+    val req =
+        HttpRequest.newBuilder(URI.create("${httpEndpointURL}dev.restate.Ingress/Invoke"))
+            .POST(
+                jacksonBodyPublisher(
+                    mapOf(
+                        "service" to CounterGrpc.SERVICE_NAME,
+                        "method" to CounterGrpc.getAddMethod().bareMethodName,
+                        "argument" to mapOf("counterName" to counterName, "value" to 2))))
+            .headers("Content-Type", "application/json")
+            .build()
+
+    val response = client.send(req, jacksonBodyHandler)
+
+    assertThat(response.statusCode()).isEqualTo(200)
+    assertThat(response.headers().firstValue("content-type"))
+        .get()
+        .asString()
+        .contains("application/json")
+    assertThat(response.body().get("sid").asText()).contains(CounterGrpc.SERVICE_NAME)
+
+    await untilCallTo
+        {
+          counterClient.get(
+              CounterProto.CounterRequest.newBuilder().setCounterName(counterName).build())
+        } matches
+        { num ->
+          num!!.value == 2L
+        }
+  }
+
+  @Test
+  fun invokeAddThroughGrpc(
+      @InjectBlockingStub ingressClient: IngressBlockingStub,
+      @InjectBlockingStub counterClient: CounterBlockingStub
+  ) {
+    val counterRandomName = UUID.randomUUID().toString()
+
+    val response =
+        ingressClient.invoke(
+            invokeRequest {
+              service = CounterGrpc.SERVICE_NAME
+              method = CounterGrpc.getAddMethod().bareMethodName.toString()
+              argument =
+                  counterAddRequest {
+                        counterName = counterRandomName
+                        value = 2
+                      }
+                      .toByteString()
+            })
+
+    assertThat(response.sid).contains(CounterGrpc.SERVICE_NAME)
+
+    await untilCallTo
+        {
+          counterClient.get(
+              CounterProto.CounterRequest.newBuilder().setCounterName(counterRandomName).build())
+        } matches
+        { num ->
+          num!!.value == 2L
+        }
+  }
+}