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Diffstat (limited to 'src/test/java/org/onap/dcae/vestest/TestingUtilities.java')
-rw-r--r-- | src/test/java/org/onap/dcae/vestest/TestingUtilities.java | 84 |
1 files changed, 84 insertions, 0 deletions
diff --git a/src/test/java/org/onap/dcae/vestest/TestingUtilities.java b/src/test/java/org/onap/dcae/vestest/TestingUtilities.java new file mode 100644 index 00000000..43e7a84e --- /dev/null +++ b/src/test/java/org/onap/dcae/vestest/TestingUtilities.java @@ -0,0 +1,84 @@ +/*- + * ============LICENSE_START======================================================= + * org.onap.dcaegen2.collectors.ves + * ================================================================================ + * Copyright (C) 2018 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.dcae.vestest; + +import static java.nio.file.Files.readAllBytes; + +import com.google.gson.JsonObject; +import com.google.gson.JsonParser; +import java.nio.file.Files; +import java.nio.file.Path; +import java.nio.file.Paths; + +/** + * @author Pawel Szalapski (pawel.szalapski@nokia.com) + */ +final class TestingUtilities { + + private TestingUtilities() { + // utility class, no objects allowed + } + + static String correctQuotes(String s) { + return s.replace("'", "\""); + } + + static JsonObject readJSONFromFile(Path path) { + return rethrow(() -> (JsonObject) new JsonParser().parse(new String(readAllBytes(path)))); + } + + static Path createTemporaryFile() { + return rethrow(() -> { + Path temporaryDirectory = Files.createTempDirectory("temporaryDirectory"); + Path temporaryFile = TestingUtilities.createFile(temporaryDirectory + "/testFile"); + TestingUtilities.scheduleToBeDeletedAfterTests(temporaryDirectory); + TestingUtilities.scheduleToBeDeletedAfterTests(temporaryFile); + return temporaryFile; + }); + } + + private static Path createFile(String path) { + return rethrow(() -> Files.createFile(Paths.get(path))); + } + + private static void scheduleToBeDeletedAfterTests(Path path) { + path.toFile().deleteOnExit(); + } + + /** + * Exception in test case usually means there is something wrong, it should never be catched, but rather thrown to + * be handled by JUnit framework. + */ + private static <T> T rethrow(CheckedSupplier<T> supplier) { + try { + return supplier.get(); + } catch (Exception e) { + throw new RuntimeException(); + } + } + + @FunctionalInterface + interface CheckedSupplier<T> { + + T get() throws Exception; + } + + +} |