1 files changed, 128 insertions, 0 deletions
diff --git a/common-app-api/src/test/java/org/openecomp/sdc/common/util/JsonUtilsTest.java b/common-app-api/src/test/java/org/openecomp/sdc/common/util/JsonUtilsTest.java
new file mode 100644
index 0000000000..6021b75c40
--- /dev/null
+++ b/common-app-api/src/test/java/org/openecomp/sdc/common/util/JsonUtilsTest.java
@@ -0,0 +1,128 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * SDC
+ * ================================================================================
+ * Copyright (C) 2019 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.openecomp.sdc.common.util;
+
+import com.google.gson.JsonArray;
+import com.google.gson.JsonNull;
+import com.google.gson.JsonObject;
+import org.junit.Test;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertNull;
+import static org.junit.Assert.assertTrue;
+
+public class JsonUtilsTest {
+
+    private String testProperty01 = "testProperty01";
+    private String testValue01 = "testValue01";
+    private String testProperty02 = "testProperty02";
+    private String testValue02 = "testValue02";
+    private String expectedJsonObject = "" +
+            "{" +
+            "\""+testProperty01+"\":\""+testValue01+"\"," +
+            "\""+testProperty02+"\":\""+testValue02+"\"" +
+            "}";
+
+    @Test
+    public void validateToStringConvertsJsonObjectToValidString() {
+        String result = JsonUtils.toString(generateJsonObject());
+
+        assertEquals(result, expectedJsonObject);
+    }
+
+    @Test
+    public void validateToStringReturnsNullIfJsonElementIsNull() {
+        String result = JsonUtils.toString(null);
+
+        assertNull(result);
+    }
+
+    @Test(expected = UnsupportedOperationException.class)
+    public void validateToStringFromJsonArrayThrowsUnsupportedOperationException() {
+       JsonUtils.toString(generateJsonArray());
+    }
+
+    @Test
+    public void validateToStringReturnsNullIfJsonElementIsJsonNull() {
+        String result = JsonUtils.toString(new JsonNull());
+
+        assertNull(result);
+    }
+
+    @Test
+    public void validateContainsEntryReturnsTrueIfKeyIsPresentInJsonObject() {
+        boolean result = JsonUtils.containsEntry(generateJsonObject(),testProperty01);
+
+        assertTrue(result);
+    }
+
+    @Test
+    public void validateContainsEntryReturnsFalseIfKeyIsNotPresentInJsonObject() {
+        boolean result = JsonUtils.containsEntry(new JsonObject(),testProperty01);
+
+        assertFalse(result);
+    }
+
+    @Test
+    public void validateIsEmptyJsonReturnsTrueIfInputIsEmpty() {
+        boolean result = JsonUtils.isEmptyJson(new JsonObject());
+
+        assertTrue(result);
+    }
+
+    @Test
+    public void validateIsEmptyJsonReturnsFalseIfInputIsNotEmpty() {
+        boolean result = JsonUtils.isEmptyJson(generateJsonArray().get(0));
+
+        assertFalse(result);
+    }
+
+    @Test
+    public void validateIsNullOrEmptyReturnsTrueIfInputIsEmpty() {
+        boolean result = JsonUtils.isJsonNullOrEmpty(new JsonObject());
+
+        assertTrue(result);
+    }
+
+    @Test
+    public void validateIsNullOrEmptyReturnsFalseIfInputIsNotNull() {
+        boolean result = JsonUtils.isJsonNullOrEmpty(generateJsonObject());
+
+        assertFalse(result);
+    }
+
+    private JsonObject generateJsonObject() {
+        final JsonObject testObject = new JsonObject();
+        testObject.addProperty(testProperty01,testValue01);
+        testObject.addProperty(testProperty02,testValue02);
+
+        return testObject;
+    }
+
+    private JsonArray generateJsonArray() {
+        final JsonArray testArray = new JsonArray();
+        testArray.add(generateJsonObject());
+
+        return testArray;
+    }
+
+}