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/*
* ============LICENSE_START=======================================================
* SDC-HELM-VALIDATOR
* ================================================================================
* Copyright (C) 2021 Nokia. All rights reserved.
* ================================================================================
* 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.
* ============LICENSE_END=========================================================
*/
package org.onap.sdc.helmvalidator.helm.versions;
import static org.assertj.core.api.Assertions.assertThat;
import static org.junit.jupiter.api.Assertions.assertThrows;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.util.List;
import org.apache.commons.compress.archivers.tar.TarArchiveEntry;
import org.apache.commons.compress.archivers.tar.TarArchiveOutputStream;
import org.apache.commons.compress.compressors.gzip.GzipCompressorOutputStream;
import org.junit.jupiter.api.AfterEach;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;
import org.onap.sdc.helmvalidator.helm.versions.exception.ApiVersionNotFoundException;
import org.onap.sdc.helmvalidator.helm.versions.exception.ReadFileException;
class ApiVersionsReaderTest {
private static final String API_VERSION_V2= "v2";
private static final String TEST_RESOURCES_TMP = "src/test/resources/tmp";
private static final Path TEST_CHART_PATH = Path.of(TEST_RESOURCES_TMP).resolve(Path.of("Chart.yaml"));
private static final Path TEST_TAR_PATH = Path.of(TEST_RESOURCES_TMP, "test.tar");
private ApiVersionsReader apiVersionsReader;
@BeforeEach
void setUp() {
apiVersionsReader = new ApiVersionsReader();
}
@Test
void shouldCorrectlyReadApiVersionFromTar() throws IOException {
prepareTestTar(API_VERSION_V2);
String helmVersion = apiVersionsReader.readVersion(TEST_TAR_PATH.toString());
assertThat(helmVersion).isEqualTo(API_VERSION_V2);
}
@Test
void shouldThrowExceptionWhenApiVersionIsNotProvided() throws IOException {
prepareTestTar(null);
final String chartPath = TEST_TAR_PATH.toString();
Exception exception = assertThrows(ApiVersionNotFoundException.class,
() -> apiVersionsReader.readVersion(chartPath));
assertThat(exception).hasMessageContaining("Cannot find apiVersion value in a main chart");
}
@Test
void shouldThrowExceptionForNotExistingPath() {
String notExistingChartPath = "not/exiting/chart/path";
Exception exception = assertThrows(ReadFileException.class,
() -> apiVersionsReader.readVersion(notExistingChartPath));
assertThat(exception).hasMessageContaining("Cannot read tar from path: " + notExistingChartPath);
}
@AfterEach
void cleanTmpDir() throws IOException {
Files.walk(Paths.get(TEST_RESOURCES_TMP))
.map(Path::toFile)
.filter(File::isFile)
.forEach(File::delete);
}
private void prepareTestTar(String apiVersion) throws IOException {
createTestChart(apiVersion);
createTestTar();
}
private void createTestTar() throws IOException {
TarArchiveOutputStream tarOutput = null;
try {
tarOutput = new TarArchiveOutputStream(
new GzipCompressorOutputStream(new FileOutputStream(String.valueOf(TEST_TAR_PATH))));
final String tarChartPath = "test/Chart.yaml";
TarArchiveEntry tarArchiveEntry = new TarArchiveEntry(TEST_CHART_PATH.toFile(), tarChartPath);
tarOutput.putArchiveEntry(tarArchiveEntry);
Files.copy(TEST_CHART_PATH, tarOutput);
} finally {
if (tarOutput != null) {
tarOutput.closeArchiveEntry();
tarOutput.close();
}
}
}
private void createTestChart(String apiVersion) throws IOException {
String apiVersionLine = apiVersion != null ? "apiVersion: " + apiVersion : "";
Files.createDirectories(TEST_CHART_PATH.getParent());
Files.createFile(TEST_CHART_PATH);
Files.write(TEST_CHART_PATH, List.of("appVersion: 1.0", apiVersionLine, "name: test-chart"));
}
}
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