Improved helm-generator code to make it more testable and improved code coverage

Issue-ID: DCAEGEN2-2911
Issue-ID: DCAEGEN2-2917
Change-Id: Ifc1f336b627b37a9356a3a72b33fcac18bdaa686
Signed-off-by: Dhrumin Desai <dd303q@att.com>

1 files changed, 100 insertions, 0 deletions

diff --git a/mod2/helm-generator/helmchartgenerator-core/src/test/java/org/onap/dcaegen2/platform/helmchartgenerator/KeyValueMergerTest.java b/mod2/helm-generator/helmchartgenerator-core/src/test/java/org/onap/dcaegen2/platform/helmchartgenerator/KeyValueMergerTest.java
new file mode 100644
index 0000000..4082170
--- /dev/null
+++ b/mod2/helm-generator/helmchartgenerator-core/src/test/java/org/onap/dcaegen2/platform/helmchartgenerator/KeyValueMergerTest.java
@@ -0,0 +1,100 @@
+/*
+ * # ============LICENSE_START=======================================================
+ * # Copyright (c) 2021 AT&T Intellectual Property. 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.dcaegen2.platform.helmchartgenerator;
+
+import org.apache.commons.io.FileUtils;
+import org.junit.jupiter.api.AfterEach;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.extension.ExtendWith;
+import org.mockito.Mock;
+import org.mockito.Mockito;
+import org.mockito.junit.jupiter.MockitoExtension;
+import org.onap.dcaegen2.platform.helmchartgenerator.chartbuilder.KeyValueMerger;
+import org.onap.dcaegen2.platform.helmchartgenerator.models.chartinfo.ChartInfo;
+import org.onap.dcaegen2.platform.helmchartgenerator.models.chartinfo.Metadata;
+import org.yaml.snakeyaml.Yaml;
+
+import java.io.File;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.PrintWriter;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.util.HashMap;
+import java.util.Map;
+
+import static org.mockito.ArgumentMatchers.any;
+
+@ExtendWith(MockitoExtension.class)
+class KeyValueMergerTest {
+
+    private KeyValueMerger merger;
+
+    @Mock
+    private Yaml yamlHelper;
+
+    private File chartDir;
+
+    @BeforeEach
+    void setUp() {
+        merger = new KeyValueMerger(yamlHelper);
+    }
+
+    @Test
+    void mergeValuesToChart() throws IOException {
+        ChartInfo chartInfo = prepareChartInfo();
+        chartDir = prepareChartDir();
+
+        Mockito.when(yamlHelper.load(any(InputStream.class))).thenReturn(new HashMap<String, Object>());
+
+        merger.mergeValuesToChart(chartInfo, chartDir);
+        Mockito.verify(yamlHelper, Mockito.times(2)).dump(any(HashMap.class), any(PrintWriter.class));
+    }
+
+    @AfterEach
+    void tearDown(){
+        FileUtils.deleteQuietly(chartDir);
+    }
+
+    private File prepareChartDir() throws IOException {
+        final Path chartDir = Files.createTempDirectory("chartDir");
+        Files.createFile(chartDir.resolve("Chart.yaml"));
+        Files.createFile(chartDir.resolve("values.yaml"));
+        return chartDir.toFile();
+    }
+
+    private ChartInfo prepareChartInfo() {
+        ChartInfo chartInfo = new ChartInfo();
+
+        Metadata metadata = new Metadata();
+        metadata.setName("someComponent");
+        metadata.setVersion("someVersion");
+        metadata.setDescription("someDescription");
+
+        Map<String, Object> values = new HashMap<>();
+        values.put("someKey", "someValue");
+
+        chartInfo.setMetadata(metadata);
+        chartInfo.setValues(values);
+
+        return chartInfo;
+    }
+}
+