StacksTest.java

/*
 * Copyright 2013-2021 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.cloudfoundry.client.v2;

import static org.assertj.core.api.Assertions.assertThat;

import java.time.Duration;
import org.cloudfoundry.AbstractIntegrationTest;
import org.cloudfoundry.client.CloudFoundryClient;
import org.cloudfoundry.client.v2.stacks.CreateStackRequest;
import org.cloudfoundry.client.v2.stacks.CreateStackResponse;
import org.cloudfoundry.client.v2.stacks.DeleteStackRequest;
import org.cloudfoundry.client.v2.stacks.GetStackRequest;
import org.cloudfoundry.client.v2.stacks.GetStackResponse;
import org.cloudfoundry.client.v2.stacks.ListStacksRequest;
import org.cloudfoundry.client.v2.stacks.StackResource;
import org.cloudfoundry.util.JobUtils;
import org.cloudfoundry.util.PaginationUtils;
import org.cloudfoundry.util.ResourceUtils;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;
import org.springframework.beans.factory.annotation.Autowired;
import reactor.core.publisher.Flux;
import reactor.core.publisher.Mono;
import reactor.test.StepVerifier;

public final class StacksTest extends AbstractIntegrationTest {

    @Autowired private CloudFoundryClient cloudFoundryClient;

    private String stackName;

    @BeforeEach
    void setUp(@Autowired Mono<String> stackName) {
        this.stackName = stackName.block();
    }

    @Test
    public void create() {
        String stackName = this.nameFactory.getStackName();

        this.cloudFoundryClient
                .stacks()
                .create(
                        CreateStackRequest.builder()
                                .description("Test stack description")
                                .name(stackName)
                                .build())
                .thenMany(requestListStacks(stackName))
                .map(response -> ResourceUtils.getEntity(response).getDescription())
                .as(StepVerifier::create)
                .expectNext("Test stack description")
                .expectComplete()
                .verify(Duration.ofMinutes(5));
    }

    @Test
    public void delete() {
        String stackName = this.nameFactory.getStackName();

        createStackId(this.cloudFoundryClient, stackName)
                .delayUntil(
                        stackId ->
                                this.cloudFoundryClient
                                        .stacks()
                                        .delete(
                                                DeleteStackRequest.builder()
                                                        .async(false)
                                                        .stackId(stackId)
                                                        .build()))
                .flatMap(stackId -> requestGetStack(this.cloudFoundryClient, stackId))
                .as(StepVerifier::create)
                .consumeErrorWith(
                        t ->
                                assertThat(t)
                                        .isInstanceOf(ClientV2Exception.class)
                                        .hasMessageMatching(
                                                "CF-StackNotFound\\([0-9]+\\): The stack could not"
                                                        + " be found: .*"))
                .verify(Duration.ofMinutes(5));
    }

    @Test
    public void deleteAsync() {
        String stackName = this.nameFactory.getStackName();

        createStackId(this.cloudFoundryClient, stackName)
                .delayUntil(
                        stackId ->
                                this.cloudFoundryClient
                                        .stacks()
                                        .delete(
                                                DeleteStackRequest.builder()
                                                        .async(true)
                                                        .stackId(stackId)
                                                        .build())
                                        .flatMap(
                                                job ->
                                                        JobUtils.waitForCompletion(
                                                                this.cloudFoundryClient,
                                                                Duration.ofMinutes(5),
                                                                job)))
                .flatMap(stackId -> requestGetStack(this.cloudFoundryClient, stackId))
                .as(StepVerifier::create)
                .consumeErrorWith(
                        t ->
                                assertThat(t)
                                        .isInstanceOf(ClientV2Exception.class)
                                        .hasMessageMatching(
                                                "CF-StackNotFound\\([0-9]+\\): The stack could not"
                                                        + " be found: .*"))
                .verify(Duration.ofMinutes(5));
    }

    @Test
    public void get() {
        getStackId()
                .flatMap(
                        stackId ->
                                this.cloudFoundryClient
                                        .stacks()
                                        .get(GetStackRequest.builder().stackId(stackId).build()))
                .map(resource -> resource.getEntity().getName())
                .as(StepVerifier::create)
                .expectNext(this.stackName)
                .expectComplete()
                .verify(Duration.ofMinutes(5));
    }

    @Test
    public void list() {
        getStackId()
                .flatMapMany(
                        stackId ->
                                PaginationUtils.requestClientV2Resources(
                                                page ->
                                                        this.cloudFoundryClient
                                                                .stacks()
                                                                .list(
                                                                        ListStacksRequest.builder()
                                                                                .page(page)
                                                                                .build()))
                                        .filter(
                                                resource ->
                                                        ResourceUtils.getId(resource)
                                                                .equals(stackId)))
                .map(resource -> resource.getEntity().getName())
                .as(StepVerifier::create)
                .expectNext(this.stackName)
                .expectComplete()
                .verify(Duration.ofMinutes(5));
    }

    @Test
    public void listFilterByName() {
        this.requestListStacks(this.stackName)
                .map(resource -> resource.getEntity().getName())
                .as(StepVerifier::create)
                .expectNext(this.stackName)
                .expectComplete()
                .verify(Duration.ofMinutes(5));
    }

    private static Mono<String> createStackId(
            CloudFoundryClient cloudFoundryClient, String stackName) {
        return requestCreateStack(cloudFoundryClient, stackName).map(ResourceUtils::getId);
    }

    private Mono<String> getStackId() {
        return this.requestListStacks(this.stackName).single().map(ResourceUtils::getId);
    }

    private static Mono<CreateStackResponse> requestCreateStack(
            CloudFoundryClient cloudFoundryClient, String stackName) {
        return cloudFoundryClient
                .stacks()
                .create(
                        CreateStackRequest.builder()
                                .description("Test stack description")
                                .name(stackName)
                                .build());
    }

    private static Mono<GetStackResponse> requestGetStack(
            CloudFoundryClient cloudFoundryClient, String stackId) {
        return cloudFoundryClient.stacks().get(GetStackRequest.builder().stackId(stackId).build());
    }

    private Flux<StackResource> requestListStacks(String stackName) {
        return PaginationUtils.requestClientV2Resources(
                page ->
                        this.cloudFoundryClient
                                .stacks()
                                .list(
                                        ListStacksRequest.builder()
                                                .name(stackName)
                                                .page(page)
                                                .build()));
    }
}