Fix Application Scaling

This commit adds an integration test for scaling.

[resolves #1010]

Signed-off-by: Paul Harris <[email protected]>

Author: twoseat

cloudfoundry-client-reactor/src/main/java/org/cloudfoundry/reactor/client/v3/applications/ReactorApplicationsV3.java

@@ -64,7 +64,6 @@
 import org.cloudfoundry.reactor.ConnectionContext;
 import org.cloudfoundry.reactor.TokenProvider;
 import org.cloudfoundry.reactor.client.v3.AbstractClientV3Operations;
-
 import reactor.core.publisher.Mono;
 
 import java.util.Map;

cloudfoundry-client-reactor/src/test/java/org/cloudfoundry/reactor/client/v3/applications/ReactorApplicationsV3Test.java

@@ -1278,7 +1278,7 @@ public void listTasks() {
     public void scale() {
         mockRequest(InteractionContext.builder()
             .request(TestRequest.builder()
-                .method(PUT).path("/apps/test-application-id/processes/test-type/actions/scale")
+                .method(POST).path("/apps/test-application-id/processes/test-type/actions/scale")
                 .payload("fixtures/client/v3/apps/PUT_{id}_processes_{type}_actions_scale_request.json")
                 .build())
             .response(TestResponse.builder()

integration-test/src/test/java/org/cloudfoundry/client/v3/ApplicationsTest.java

@@ -23,7 +23,10 @@
 import org.cloudfoundry.client.v3.applications.ApplicationRelationships;
 import org.cloudfoundry.client.v3.applications.CreateApplicationRequest;
 import org.cloudfoundry.client.v3.applications.CreateApplicationResponse;
+import org.cloudfoundry.client.v3.applications.GetApplicationProcessRequest;
+import org.cloudfoundry.client.v3.applications.GetApplicationProcessResponse;
 import org.cloudfoundry.client.v3.applications.ListApplicationRoutesRequest;
+import org.cloudfoundry.client.v3.applications.ScaleApplicationRequest;
 import org.cloudfoundry.client.v3.domains.CreateDomainRequest;
 import org.cloudfoundry.client.v3.domains.CreateDomainResponse;
 import org.cloudfoundry.client.v3.domains.DomainRelationships;
@@ -335,6 +338,28 @@ public void listApplicationRoutesBySpaceId() {
             .verify(Duration.ofMinutes(5));
     }
 
+    @IfCloudFoundryVersion(greaterThanOrEqualTo = CloudFoundryVersion.PCF_2_9)
+    @Test
+    public void scale() {
+        String applicationName = this.nameFactory.getApplicationName();
+
+        this.spaceId
+            .flatMap(spaceId -> createApplicationId(this.cloudFoundryClient, applicationName, spaceId))
+            .flatMap(applicationId -> this.cloudFoundryClient.applicationsV3()
+                .scale(ScaleApplicationRequest.builder()
+                    .applicationId(applicationId)
+                    .diskInMb(404)
+                    .type("web")
+                    .build())
+                .thenReturn(applicationId))
+            .flatMap(applicationId -> requestApplicationProcess(this.cloudFoundryClient, applicationId))
+            .map(GetApplicationProcessResponse::getDiskInMb)
+            .as(StepVerifier::create)
+            .expectNext(404)
+            .expectComplete()
+            .verify(Duration.ofMinutes(5));
+    }
+
     private static Mono<String> createApplicationId(CloudFoundryClient cloudFoundryClient, String applicationName, String spaceId) {
         return requestCreateApplication(cloudFoundryClient, applicationName, spaceId)
             .map(CreateApplicationResponse::getId);
@@ -365,6 +390,14 @@ private static Mono<String> createSpaceId(CloudFoundryClient cloudFoundryClient,
             .map(CreateSpaceResponse::getId);
     }
 
+    private static Mono<GetApplicationProcessResponse> requestApplicationProcess(CloudFoundryClient cloudFoundryClient, String applicationId) {
+        return cloudFoundryClient.applicationsV3()
+            .getProcess(GetApplicationProcessRequest.builder()
+                .applicationId(applicationId)
+                .type("web")
+                .build());
+    }
+
     private static Mono<CreateApplicationResponse> requestCreateApplication(CloudFoundryClient cloudFoundryClient, String applicationName, String spaceId) {
         return cloudFoundryClient.applicationsV3()
             .create(CreateApplicationRequest.builder()