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test: test cases for pod container selection logic
Signed-off-by: Marc Nuri <[email protected]>
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158
kubernetes-tests/src/test/java/io/fabric8/kubernetes/client/mock/PodExecTest.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.mock; | ||
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| import io.fabric8.kubernetes.api.model.PodBuilder; | ||
| import io.fabric8.kubernetes.api.model.Status; | ||
| import io.fabric8.kubernetes.api.model.StatusBuilder; | ||
| import io.fabric8.kubernetes.client.KubernetesClient; | ||
| import io.fabric8.kubernetes.client.KubernetesClientException; | ||
| import io.fabric8.kubernetes.client.dsl.ContainerResource; | ||
| import io.fabric8.kubernetes.client.dsl.ExecWatch; | ||
| import io.fabric8.kubernetes.client.dsl.PodResource; | ||
| import io.fabric8.kubernetes.client.server.mock.EnableKubernetesMockClient; | ||
| import io.fabric8.kubernetes.client.server.mock.KubernetesMockServer; | ||
| import io.fabric8.kubernetes.client.utils.Serialization; | ||
| import io.fabric8.mockwebserver.internal.WebSocketMessage; | ||
| import org.junit.jupiter.api.BeforeEach; | ||
| import org.junit.jupiter.api.DisplayName; | ||
| import org.junit.jupiter.api.Test; | ||
|
|
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| import java.util.concurrent.TimeUnit; | ||
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|
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| import static org.assertj.core.api.Assertions.assertThat; | ||
| import static org.assertj.core.api.Assertions.assertThatThrownBy; | ||
|
|
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| @SuppressWarnings("unused") | ||
| @EnableKubernetesMockClient(crud = true) | ||
| class PodExecTest { | ||
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| private KubernetesMockServer server; | ||
| private KubernetesClient client; | ||
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| @BeforeEach | ||
| void setUp() { | ||
| client.pods().inAnyNamespace().delete(); | ||
| } | ||
|
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| @Test | ||
| @DisplayName("With no containers, should throw exception") | ||
| void withNoContainers() { | ||
| client.pods().resource(new PodBuilder().withNewMetadata().withName("no-containers").endMetadata().build()) | ||
| .createOrReplace(); | ||
| final PodResource pr = client.pods().withName("no-containers"); | ||
| assertThatThrownBy(() -> pr.exec("sh", "-c", "echo Greetings Professor Falken")) | ||
| .isInstanceOf(KubernetesClientException.class) | ||
| .hasMessage("Pod has no containers!"); | ||
| } | ||
|
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| @Test | ||
| @DisplayName("With single container, should exec in the single container") | ||
| void withSingleContainer() throws Exception { | ||
| client.pods().resource(new PodBuilder().withNewMetadata().withName("single-container").endMetadata() | ||
| .withNewSpec() | ||
| .addNewContainer() | ||
| .withName("the-single-container") | ||
| .endContainer() | ||
| .endSpec() | ||
| .build()) | ||
| .createOrReplace(); | ||
| server.expect() | ||
| .get() | ||
| .withPath("/api/v1/namespaces/test/pods/single-container/exec?command=sleep%201&container=the-single-container") | ||
| .andUpgradeToWebSocket() | ||
| .open() | ||
| .immediately().andEmit(exitZeroEvent()) | ||
| .done() | ||
| .always(); | ||
| final ExecWatch result = client.pods().withName("single-container").exec("sleep 1"); | ||
| assertThat(result.exitCode().get(1, TimeUnit.SECONDS)).isZero(); | ||
| } | ||
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| @Test | ||
| @DisplayName("With single container and inContainer with non-existent name, should throw exception") | ||
| void withSingleContainerAndInContainer() { | ||
| client.pods().resource(new PodBuilder().withNewMetadata().withName("single-container").endMetadata() | ||
| .withNewSpec() | ||
| .addNewContainer() | ||
| .withName("the-single-container") | ||
| .endContainer() | ||
| .endSpec() | ||
| .build()) | ||
| .createOrReplace(); | ||
| final ContainerResource cr = client.pods().withName("single-container").inContainer("non-existent"); | ||
| assertThatThrownBy(() -> cr.exec("exit 0")) | ||
| .isInstanceOf(KubernetesClientException.class) | ||
| .hasMessage("container non-existent not found in pod single-container"); | ||
| } | ||
|
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| @Test | ||
| @DisplayName("With multiple containers, should exec in the first container") | ||
| void withMultipleContainers() throws Exception { | ||
| client.pods().resource(new PodBuilder().withNewMetadata().withName("multiple-containers").endMetadata() | ||
| .withNewSpec() | ||
| .addNewContainer() | ||
| .withName("the-first-container") | ||
| .endContainer() | ||
| .addNewContainer() | ||
| .withName("the-second-container") | ||
| .endContainer() | ||
| .endSpec() | ||
| .build()) | ||
| .createOrReplace(); | ||
| server.expect() | ||
| .get() | ||
| .withPath("/api/v1/namespaces/test/pods/multiple-containers/exec?command=sleep%201&container=the-first-container") | ||
| .andUpgradeToWebSocket() | ||
| .open() | ||
| .immediately().andEmit(exitZeroEvent()) | ||
| .done() | ||
| .always(); | ||
| final ExecWatch result = client.pods().withName("multiple-containers").exec("sleep 1"); | ||
| assertThat(result.exitCode().get(1, TimeUnit.SECONDS)).isZero(); | ||
| } | ||
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| @Test | ||
| @DisplayName("With multiple containers and inContainer with existent name, should exec in the selected container") | ||
| void withMultipleContainersAndInContainer() throws Exception { | ||
| client.pods().resource(new PodBuilder().withNewMetadata().withName("multiple-containers").endMetadata() | ||
| .withNewSpec() | ||
| .addNewContainer() | ||
| .withName("the-first-container") | ||
| .endContainer() | ||
| .addNewContainer() | ||
| .withName("the-second-container") | ||
| .endContainer() | ||
| .endSpec() | ||
| .build()) | ||
| .createOrReplace(); | ||
| server.expect() | ||
| .get() | ||
| .withPath("/api/v1/namespaces/test/pods/multiple-containers/exec?command=sleep%201&container=the-second-container") | ||
| .andUpgradeToWebSocket() | ||
| .open() | ||
| .immediately().andEmit(exitZeroEvent()) | ||
| .done() | ||
| .always(); | ||
| final ExecWatch result = client.pods().withName("multiple-containers").inContainer("the-second-container").exec("sleep 1"); | ||
| assertThat(result.exitCode().get(1, TimeUnit.SECONDS)).isZero(); | ||
| } | ||
|
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| private static WebSocketMessage exitZeroEvent() { | ||
| final Status success = new StatusBuilder().withStatus("Success").build(); | ||
| return new WebSocketMessage(0L, "\u0003" + Serialization.asJson(success), false, true); | ||
| } | ||
| } |