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KubernetesDeserializerTest.java
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KubernetesDeserializerTest.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.internal;
import io.fabric8.kubernetes.api.KubernetesResourceMappingProvider;
import io.fabric8.kubernetes.api.model.KubernetesResource;
import io.fabric8.kubernetes.api.model.Pod;
import io.fabric8.kubernetes.api.model.Quantity;
import io.fabric8.kubernetes.internal.KubernetesDeserializer.TypeKey;
import org.apache.commons.lang3.tuple.Pair;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;
import java.util.stream.Collectors;
import java.util.stream.Stream;
import static org.assertj.core.api.Assertions.assertThat;
import static org.junit.jupiter.api.Assertions.assertThrows;
class KubernetesDeserializerTest {
private KubernetesDeserializer.Mapping mapping;
@BeforeEach
public void beforeEach() {
this.mapping = new TestableMapping(createProvider());
}
@Test
void shouldRegisterKind() {
// given
String version = "version1";
String kind = "kind1";
TypeKey key = mapping.createKey(version, kind);
assertThat(mapping.getForKey(key)).isNull();
// when
mapping.registerKind(version, kind, SmurfResource.class);
// then
Class<? extends KubernetesResource> clazz = mapping.getForKey(key);
assertThat(clazz).isEqualTo(SmurfResource.class);
}
@Test
void shouldNPEIfRegisterNullKind() {
// given
// when
assertThrows(NullPointerException.class, () -> {
mapping.registerKind("version1", null, SmurfResource.class);
});
// then throws
}
@Test
void shouldRegisterKindWithoutVersionIfNullVersion() {
// given
String version = null;
String kind = "kind1";
TypeKey key = mapping.createKey(version, kind);
// when
mapping.registerKind(version, kind, SmurfResource.class);
// then
Class<? extends KubernetesResource> clazz = mapping.getForKey(key);
assertThat(clazz).isEqualTo(SmurfResource.class);
}
@Test
void shouldRegisterProvider() {
// given
TypeKey key = mapping.createKey("42", "Hitchhiker");
assertThat(mapping.getForKey(key)).isNull();
KubernetesResourceMappingProvider provider = createProvider(
Pair.of("42#Hitchhiker", SmurfResource.class));
// when
mapping.registerProvider(provider);
// then
Class<? extends KubernetesResource> clazz = mapping.getForKey(key);
assertThat(clazz).isEqualTo(SmurfResource.class);
}
@Test
void shouldReturnMappedClass() {
// given
String version = "version1";
String kind = SmurfResource.class.getSimpleName();
TypeKey key = mapping.createKey(version, kind);
assertThat(mapping.getForKey(key)).isNull();
mapping.registerKind(version, kind, SmurfResource.class);
// when
Class<? extends KubernetesResource> clazz = mapping.getForKey(key);
// then
assertThat(clazz).isEqualTo(SmurfResource.class);
}
@Test
void shouldReturnNullIfKeyIsNull() {
// given
// when
Class<? extends KubernetesResource> clazz = mapping.getForKey(null);
// then
assertThat(clazz).isNull();
}
@Test
void shouldLoadClassInPackage() {
// given
TypeKey key = mapping.getKeyFromClass(Pod.class);
// when
Class<? extends KubernetesResource> clazz = mapping.getForKey(key);
// then
assertThat(clazz).isEqualTo(Pod.class);
}
@Test
void shouldNotLoadClassInPackage() {
// given
TypeKey key = mapping.createKey("other/v1", Pod.class.getSimpleName());
// when
Class<? extends KubernetesResource> clazz = mapping.getForKey(key);
// then
assertThat(clazz).isNull();
}
@Test
void shouldNotLoadClassInPackageIfNotKubernetesResource() {
// given Quantity is not a KubernetesResource
TypeKey key = mapping.createKey("42", Quantity.class.getSimpleName());
// when
Class<? extends KubernetesResource> clazz = mapping.getForKey(key);
// then
assertThat(clazz).isNull();
}
@Test
void shouldNotLoadClassIfKeyOnlyHasKind() {
// given
TypeKey key = mapping.createKey(null, Pod.class.getSimpleName());
// when
Class<? extends KubernetesResource> clazz = mapping.getForKey(key);
// then
assertThat(clazz).isNull();
}
private KubernetesResourceMappingProvider createProvider(Pair<String, Class<? extends KubernetesResource>>... mappings) {
return () -> Stream.of(mappings)
.collect(Collectors.toMap(Pair::getKey, Pair::getValue));
}
public static final class TestableMapping extends KubernetesDeserializer.Mapping {
private final KubernetesResourceMappingProvider provider;
public TestableMapping(KubernetesResourceMappingProvider provider) {
this.provider = provider;
}
@Override
protected Stream<KubernetesResourceMappingProvider> getAllMappingProviders() {
return Stream.of(provider);
}
}
private static final class SmurfResource implements KubernetesResource {
}
}