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/*-
* ============LICENSE_START=======================================================
* Copyright (C) 2023 Nordix Foundation.
* ================================================================================
* 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.
*
* SPDX-License-Identifier: Apache-2.0
* ============LICENSE_END=========================================================
*/
package org.onap.so.cnfm.lcm.bpmn.flows.extclients.helm;
import static org.junit.Assert.assertEquals;
import static org.mockito.ArgumentMatchers.argThat;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.when;
import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.util.Arrays;
import java.util.Collections;
import java.util.List;
import org.junit.Test;
import org.mockito.ArgumentMatcher;
import org.onap.so.cnfm.lcm.bpmn.flows.Constants;
import org.onap.so.cnfm.lcm.bpmn.flows.exceptions.HelmClientExecuteException;
import org.onap.so.cnfm.lcm.bpmn.flows.utils.PropertiesToYamlConverter;
import org.onap.so.cnfm.lcm.database.beans.utils.Utils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
*
* @author Waqas Ikram (waqas.ikram@est.tech)
*
*/
public class HelmClientTest {
private static final Logger logger = LoggerFactory.getLogger(HelmClientTest.class);
private static final int SUCCESSFUL_EXIT_CODE = 0;
private static final int FAILED_EXIT_CODE = 1;
private static final Path DUMMY_HELM_CHART = Paths.get("/some/dir/dummy/dummy-chart.tgz");
private static final Path DUMMY_KUBE_CONFIG = Paths.get("/some/dir/dummy/kube-config");
private static final String DUMMY_RELEASE_NAME = "RELEASE_NAME";
private static final PropertiesToYamlConverter PROPERTIES_TO_YAML_CONVERTER = new PropertiesToYamlConverter();
private static final List<String> EXPECTED_COMMANDS = Arrays.asList("helm", "install", DUMMY_RELEASE_NAME, "-n",
"default", DUMMY_HELM_CHART.toString(), "--dry-run", "--kubeconfig", DUMMY_KUBE_CONFIG.toString());
private static final List<String> EXPECTED_GET_KUBE_KINDS_COMMANDS = Arrays.asList("sh", "-c",
"helm template " + DUMMY_RELEASE_NAME + " -n default " + DUMMY_HELM_CHART.toString() + " --dry-run"
+ " --kubeconfig " + DUMMY_KUBE_CONFIG.toString() + " --skip-tests | grep kind | uniq");
private static final List<String> EXPECTED_GET_KUBE_KINDS_MANIFEST_COMMANDS =
Arrays.asList("sh", "-c", "helm get manifest " + DUMMY_RELEASE_NAME + " -n default --kubeconfig "
+ DUMMY_KUBE_CONFIG.toString() + " | grep kind | uniq");
private static final List<String> EXPECTED_HELM_INSTALL_COMMANDS = Arrays.asList("sh", "-c", "helm install "
+ DUMMY_RELEASE_NAME + " -n default " + DUMMY_HELM_CHART + " --kubeconfig " + DUMMY_KUBE_CONFIG.toString());
private static final List<String> EXPECTED_HELM_UNINSTALL_COMMANDS = Arrays.asList("helm", "uninstall",
DUMMY_RELEASE_NAME, "-n", "default", "--kubeconfig", DUMMY_KUBE_CONFIG.toString());
@Test(expected = Test.None.class)
public void testRunHelmChartInstallWithDryRunFlag_successfulCase() throws Exception {
try (final ByteArrayInputStream errorStream = new ByteArrayInputStream("".getBytes());
final ByteArrayInputStream inputStream = new ByteArrayInputStream("Successful".getBytes());) {
final ProcessBuilder mockedProcessBuilder = mock(ProcessBuilder.class);
final ListMatcher expectedCommandsMatcher = new ListMatcher(EXPECTED_COMMANDS);
mockProcessBuilder(mockedProcessBuilder, expectedCommandsMatcher, errorStream, inputStream,
SUCCESSFUL_EXIT_CODE, EXPECTED_COMMANDS);
final HelmClient objUnderTest =
new StubbedHelmClientImpl(PROPERTIES_TO_YAML_CONVERTER, mockedProcessBuilder);
objUnderTest.runHelmChartInstallWithDryRunFlag(DUMMY_RELEASE_NAME, DUMMY_KUBE_CONFIG, DUMMY_HELM_CHART);
}
}
@Test(expected = HelmClientExecuteException.class)
public void testRunHelmChartInstallWithDryRunFlag_processFailed_throwException() throws Exception {
try (final ByteArrayInputStream errorStream = new ByteArrayInputStream("process failed".getBytes());
final ByteArrayInputStream inputStream = new ByteArrayInputStream("".getBytes());) {
final ProcessBuilder mockedProcessBuilder = mock(ProcessBuilder.class);
final ListMatcher expectedCommandsMatcher = new ListMatcher(EXPECTED_COMMANDS);
mockProcessBuilder(mockedProcessBuilder, expectedCommandsMatcher, errorStream, inputStream, FAILED_EXIT_CODE,
EXPECTED_COMMANDS);
final HelmClient objUnderTest =
new StubbedHelmClientImpl(PROPERTIES_TO_YAML_CONVERTER, mockedProcessBuilder);
objUnderTest.runHelmChartInstallWithDryRunFlag(DUMMY_RELEASE_NAME, DUMMY_KUBE_CONFIG, DUMMY_HELM_CHART);
}
}
@Test
public void testGetKubeKinds_successfulCase() throws Exception {
try (final ByteArrayInputStream errorStream = new ByteArrayInputStream("".getBytes());
final ByteArrayInputStream inputStream =
new ByteArrayInputStream(Constants.KIND_REPLICA_SET.getBytes());) {
final ProcessBuilder mockedProcessBuilder = mock(ProcessBuilder.class);
final ListMatcher expectedCommandsMatcher = new ListMatcher(EXPECTED_GET_KUBE_KINDS_COMMANDS);
mockProcessBuilder(mockedProcessBuilder, expectedCommandsMatcher, errorStream, inputStream, SUCCESSFUL_EXIT_CODE,
EXPECTED_GET_KUBE_KINDS_COMMANDS);
final HelmClient objUnderTest =
new StubbedHelmClientImpl(PROPERTIES_TO_YAML_CONVERTER, mockedProcessBuilder);
final List<String> actualKubeKinds =
objUnderTest.getKubeKinds(DUMMY_RELEASE_NAME, DUMMY_KUBE_CONFIG, DUMMY_HELM_CHART);
assertEquals(Arrays.asList(Constants.KIND_REPLICA_SET), actualKubeKinds);
}
}
@Test
public void testGetKubeKindsUsingManifestCommand_successfulCase() throws Exception {
try (final ByteArrayInputStream errorStream = new ByteArrayInputStream("".getBytes());
final ByteArrayInputStream inputStream =
new ByteArrayInputStream(Constants.KIND_DAEMON_SET.getBytes());) {
final ProcessBuilder mockedProcessBuilder = mock(ProcessBuilder.class);
final ListMatcher expectedCommandsMatcher = new ListMatcher(EXPECTED_GET_KUBE_KINDS_MANIFEST_COMMANDS);
mockProcessBuilder(mockedProcessBuilder, expectedCommandsMatcher, errorStream, inputStream, SUCCESSFUL_EXIT_CODE,
EXPECTED_GET_KUBE_KINDS_COMMANDS);
final HelmClient objUnderTest =
new StubbedHelmClientImpl(PROPERTIES_TO_YAML_CONVERTER, mockedProcessBuilder);
final List<String> actualKubeKinds =
objUnderTest.getKubeKindsUsingManifestCommand(DUMMY_RELEASE_NAME, DUMMY_KUBE_CONFIG);
assertEquals(Arrays.asList(Constants.KIND_DAEMON_SET), actualKubeKinds);
}
}
@Test(expected = Test.None.class)
public void testInstallHelmChart_successfulCase() throws Exception {
try (final ByteArrayInputStream errorStream = new ByteArrayInputStream("".getBytes());
final ByteArrayInputStream inputStream = new ByteArrayInputStream("Successful".getBytes());) {
final ProcessBuilder mockedProcessBuilder = mock(ProcessBuilder.class);
final ListMatcher expectedCommandsMatcher = new ListMatcher(EXPECTED_HELM_INSTALL_COMMANDS);
mockProcessBuilder(mockedProcessBuilder, expectedCommandsMatcher, errorStream, inputStream, SUCCESSFUL_EXIT_CODE,
EXPECTED_HELM_INSTALL_COMMANDS);
final HelmClient objUnderTest =
new StubbedHelmClientImpl(PROPERTIES_TO_YAML_CONVERTER, mockedProcessBuilder);
objUnderTest.installHelmChart(DUMMY_RELEASE_NAME, DUMMY_KUBE_CONFIG, DUMMY_HELM_CHART,
Collections.emptyMap());
}
}
@Test(expected = Test.None.class)
public void testUnInstallHelmChart_successfulCase() throws Exception {
try (final ByteArrayInputStream errorStream = new ByteArrayInputStream("".getBytes());
final ByteArrayInputStream inputStream = new ByteArrayInputStream("Successful".getBytes());) {
final ProcessBuilder mockedProcessBuilder = mock(ProcessBuilder.class);
final ListMatcher expectedCommandsMatcher = new ListMatcher(EXPECTED_HELM_UNINSTALL_COMMANDS);
mockProcessBuilder(mockedProcessBuilder, expectedCommandsMatcher, errorStream, inputStream, SUCCESSFUL_EXIT_CODE,
EXPECTED_HELM_UNINSTALL_COMMANDS);
final HelmClient objUnderTest =
new StubbedHelmClientImpl(PROPERTIES_TO_YAML_CONVERTER, mockedProcessBuilder);
objUnderTest.unInstallHelmChart(DUMMY_RELEASE_NAME, DUMMY_KUBE_CONFIG);
}
}
private void mockProcessBuilder(final ProcessBuilder mockedProcessBuilder,
final ListMatcher expectedCommandsMatcher, final ByteArrayInputStream errorStream,
final ByteArrayInputStream inputStream, final int exitCode, final List<String> expectedCommands)
throws InterruptedException, IOException {
final Process mockedProcess = mock(Process.class);
when(mockedProcessBuilder.command(argThat(expectedCommandsMatcher))).thenReturn(mockedProcessBuilder);
when(mockedProcess.getErrorStream()).thenReturn(errorStream);
when(mockedProcess.getInputStream()).thenReturn(inputStream);
when(mockedProcess.exitValue()).thenReturn(exitCode);
when(mockedProcess.waitFor()).thenReturn(0);
when(mockedProcessBuilder.command()).thenReturn(expectedCommands);
when(mockedProcessBuilder.start()).thenReturn(mockedProcess);
}
private class ListMatcher implements ArgumentMatcher<List<String>> {
private final List<String> expectArgumentList;
public ListMatcher(final List<String> expectArgumentList) {
this.expectArgumentList = expectArgumentList;
}
@Override
public boolean matches(final List<String> actualArgumentList) {
final boolean result = Utils.isEquals(expectArgumentList, actualArgumentList);
if (!result) {
logger.error("Mismatch arguments expected: {}, actual: {}", expectArgumentList, actualArgumentList);
}
return result;
}
}
private class StubbedHelmClientImpl extends HelmClientImpl {
private final ProcessBuilder processBuilder;
public StubbedHelmClientImpl(final PropertiesToYamlConverter propertiesToYamlConverter,
final ProcessBuilder processBuilder) {
super(propertiesToYamlConverter);
this.processBuilder = processBuilder;
}
@Override
ProcessBuilder getProcessBuilder() {
return processBuilder;
}
}
}
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