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KubernetesCrudDispatcherPostTest.java
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KubernetesCrudDispatcherPostTest.java
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/**
* Copyright (C) 2015 Red Hat, Inc.
*
* 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 io.fabric8.kubernetes.client.server.mock.crud;
import io.fabric8.kubernetes.api.model.ConfigMap;
import io.fabric8.kubernetes.api.model.ConfigMapBuilder;
import io.fabric8.kubernetes.api.model.GenericKubernetesResource;
import io.fabric8.kubernetes.api.model.ObjectMetaBuilder;
import io.fabric8.kubernetes.api.model.Pod;
import io.fabric8.kubernetes.api.model.PodBuilder;
import io.fabric8.kubernetes.client.KubernetesClient;
import io.fabric8.kubernetes.client.KubernetesClientException;
import io.fabric8.kubernetes.client.dsl.Resource;
import io.fabric8.kubernetes.client.http.HttpClient;
import io.fabric8.kubernetes.client.http.HttpRequest;
import io.fabric8.kubernetes.client.http.HttpResponse;
import io.fabric8.kubernetes.client.server.mock.KubernetesCrudDispatcher;
import io.fabric8.kubernetes.client.server.mock.KubernetesMockServer;
import io.fabric8.kubernetes.client.server.mock.crud.crd.Owl;
import io.fabric8.kubernetes.client.utils.Serialization;
import io.fabric8.mockwebserver.Context;
import okhttp3.mockwebserver.MockWebServer;
import org.junit.jupiter.api.AfterEach;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.DisplayName;
import org.junit.jupiter.api.Test;
import java.util.HashMap;
import java.util.concurrent.TimeUnit;
import static io.fabric8.kubernetes.client.dsl.internal.OperationSupport.JSON;
import static org.assertj.core.api.Assertions.assertThat;
import static org.junit.jupiter.api.Assertions.assertThrows;
class KubernetesCrudDispatcherPostTest {
private KubernetesMockServer server;
private KubernetesClient client;
@BeforeEach
void setUp() {
server = new KubernetesMockServer(new Context(Serialization.jsonMapper()),
new MockWebServer(), new HashMap<>(), new KubernetesCrudDispatcher(), false);
server.start();
client = server.createClient();
}
@AfterEach
void tearDown() {
client.close();
server.shutdown();
}
@Test
@DisplayName("create, namespaced and not existing, creates new resource with default metadata")
void createSetsDefaultValues() {
// Given
final Pod pod = new PodBuilder()
.withNewSpec().withDnsPolicy("always-dns").endSpec()
.withNewMetadata().withName("foo").addToLabels("app", "bar").endMetadata()
.build();
// When
final Pod result = client.resources(Pod.class).inNamespace("a-namespace").resource(pod).create();
// Then
assertThat(result)
.hasFieldOrPropertyWithValue("metadata.namespace", "a-namespace")
.hasFieldOrPropertyWithValue("metadata.name", "foo")
.hasFieldOrPropertyWithValue("metadata.generation", 1L)
.hasFieldOrPropertyWithValue("metadata.resourceVersion", "1")
.hasFieldOrPropertyWithValue("spec.dnsPolicy", "always-dns")
.extracting(Pod::getMetadata)
.satisfies(m -> assertThat(m.getCreationTimestamp()).isNotBlank())
.satisfies(m -> assertThat(m.getUid()).isNotBlank());
}
@Test
@DisplayName("create, not existing and generateName, creates new resource with default metadata")
void createGenerateNameSetsDefaultValues() {
// Given
final Pod pod = new PodBuilder()
.withNewSpec().withDnsPolicy("always-dns").endSpec()
.withNewMetadata().withGenerateName("foo-gen").addToLabels("app", "bar").endMetadata()
.build();
// When
final Pod result = client.resources(Pod.class).resource(pod).create();
// Then
assertThat(result)
.hasFieldOrPropertyWithValue("metadata.namespace", "test")
.hasFieldOrPropertyWithValue("metadata.generation", 1L)
.hasFieldOrPropertyWithValue("metadata.resourceVersion", "1")
.hasFieldOrPropertyWithValue("spec.dnsPolicy", "always-dns")
.extracting(Pod::getMetadata)
.satisfies(m -> assertThat(m.getName()).startsWith("foo-gen-"))
.satisfies(m -> assertThat(m.getCreationTimestamp()).isNotBlank())
.satisfies(m -> assertThat(m.getUid()).isNotBlank());
}
@Test
@DisplayName("create, existing, should return conflict")
void createExistingConflict() {
// Given
final Pod pod = new PodBuilder()
.withNewSpec().withDnsPolicy("always-dns").endSpec()
.withNewMetadata().withName("foo").addToLabels("app", "bar").endMetadata()
.build();
client.resources(Pod.class).resource(pod).create();
final Resource<Pod> podResource = client.resources(Pod.class).resource(pod);
// When
final KubernetesClientException result = assertThrows(KubernetesClientException.class, podResource::create);
// Then
assertThat(result)
.hasFieldOrPropertyWithValue("code", 409)
.hasMessageContaining("Pod 'foo' already exists");
}
@Test
@DisplayName("create, missing kind, should return bad request")
void createMissingKind() {
// Given
final GenericKubernetesResource cm = new GenericKubernetesResource();
cm.setMetadata(new ObjectMetaBuilder().withName("name").build());
final Resource<GenericKubernetesResource> resource = client
.genericKubernetesResources("v1", "ConfigMap")
.resource(cm);
// When
final KubernetesClientException result = assertThrows(KubernetesClientException.class, resource::create);
// Then
assertThat(result)
.hasFieldOrPropertyWithValue("code", 422)
.hasMessageContaining("Required value: kind is required");
}
@Test
@DisplayName("create, missing metadata, should return unprocessable entity")
void createMissingMetadata() {
// Given
final GenericKubernetesResource cm = new GenericKubernetesResource();
cm.setKind("ConfigMap");
final Resource<GenericKubernetesResource> resource = client
.genericKubernetesResources("v1", "ConfigMap").withName("name");
;
// When
final KubernetesClientException result = assertThrows(KubernetesClientException.class, () -> resource.create(cm));
// Then
assertThat(result)
.hasFieldOrPropertyWithValue("code", 422)
.hasMessageContaining("ConfigMap is invalid")
.hasMessageContaining("Required value: metadata is required");
}
@Test
@DisplayName("HTTP POST, namespace mismatch, should return bad request")
void postNamespaceMismatch() throws Exception {
// Given
final HttpClient httpClient = client.getHttpClient();
final ConfigMap cm = new ConfigMapBuilder().withNewMetadata()
.withName("name")
.withNamespace("different").endMetadata()
.build();
final HttpRequest request = httpClient.newHttpRequestBuilder()
.post(JSON, Serialization.asJson(cm))
.uri(server.url("/api/v1/namespaces/test/configmaps"))
.build();
// When
final HttpResponse<String> result = httpClient.sendAsync(request, String.class).get(10, TimeUnit.SECONDS);
// Then
assertThat(result)
.extracting(HttpResponse::code).isEqualTo(400);
assertThat(result)
.extracting(HttpResponse::body).asString()
.contains("the namespace of the object (different) does not match the namespace on the URL (test)");
}
@Test
@DisplayName("create, custom resource with status, ignores changes to status stanza")
// POST requests to the custom resource ignore changes to the status stanza.
void createCrIgnoreStatusChanges() {
// Given
client.apiextensions().v1().customResourceDefinitions().resource(Owl.toCrd()).create();
final Owl owl = new Owl();
owl.setMetadata(new ObjectMetaBuilder().withName("lincoln-march").build());
owl.getSpec().setSpecies("Barn owl");
owl.getStatus().setNotes("Should be removed");
// When
final Owl result = client.resources(Owl.class).resource(owl).create();
// Then
assertThat(result)
.hasFieldOrPropertyWithValue("spec.species", "Barn owl")
.hasFieldOrPropertyWithValue("status.notes", null);
}
}