1 files changed, 166 insertions, 0 deletions
diff --git a/src/test/java/org/onap/pnfsimulator/template/search/JsonUtilsTest.java b/src/test/java/org/onap/pnfsimulator/template/search/JsonUtilsTest.java
new file mode 100644
index 0000000..aac15a6
--- /dev/null
+++ b/src/test/java/org/onap/pnfsimulator/template/search/JsonUtilsTest.java
@@ -0,0 +1,166 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * Simulator
+ * ================================================================================
+ * 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.onap.pnfsimulator.template.search;
+
+import com.google.gson.Gson;
+import com.google.gson.JsonObject;
+import org.bson.Document;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+
+import static org.assertj.core.api.Java6Assertions.assertThat;
+
+class JsonUtilsTest {
+
+    private static final Gson GSON_HELPER = new Gson();
+    private JsonUtils utils;
+
+    @BeforeEach
+    void setUp() {
+        utils = new JsonUtils();
+    }
+
+    private static final String NOTIFICATION_JSON = "{\n\"event\": {\n"
+            + "    \"commonEventHeader\": {\n"
+            + "      \"domain\": \"notification\",\n"
+            + "      \"eventName\": \"vFirewallBroadcastPackets\"\n"
+            + "    },\n"
+            + "    \"notificationFields\": {\n"
+            + "      \"changeIdentifier\": \"PM_MEAS_FILES\",\n"
+            + "      \"arrayOfNamedHashMap\": [{\n"
+            + "        \"name\": \"A20161221.1031-1041.bin.gz\",\n"
+            + "        \"hashMap\": {\n"
+            + "          \"fileformatType\": \"org.3GPP.32.435#measCollec\",\n"
+            + "          \"fileFormatVersion\": \"V10\"\n"
+            + "        }\n"
+            + "      }, {\n"
+            + "        \"name\": \"A20161222.1042-1102.bin.gz\",\n"
+            + "        \"hashMap\": {\n"
+            + "          \"fileFormatType\": \"org.3GPP.32.435#measCollec\",\n"
+            + "          \"fileFormatVersion\": \"1.0.0\"\n"
+            + "        }\n"
+            + "      }],\n"
+            + "      \"notificationFieldsVersion\": \"2.0\"\n}\n\n}}";
+    private static final String EXPECTED_FLATTENED_NOTIFICATION = "{"
+            + " \":event:commonEventHeader:domain\" : \"notification\","
+            + " \":event:commonEventHeader:eventName\" : \"vFirewallBroadcastPackets\","
+            + " \":event:notificationFields:changeIdentifier\" : \"PM_MEAS_FILES\","
+            + " \":event:notificationFields:arrayOfNamedHashMap[0]:name\" : \"A20161221.1031-1041.bin.gz\","
+            + " \":event:notificationFields:arrayOfNamedHashMap[0]:hashMap:fileformatType\" : \"org.3GPP.32.435#measCollec\","
+            + " \":event:notificationFields:arrayOfNamedHashMap[0]:hashMap:fileFormatVersion\" : \"V10\","
+            + " \":event:notificationFields:arrayOfNamedHashMap[1]:name\" : \"A20161222.1042-1102.bin.gz\","
+            + " \":event:notificationFields:arrayOfNamedHashMap[1]:hashMap:fileFormatType\" : \"org.3GPP.32.435#measCollec\","
+            + " \":event:notificationFields:arrayOfNamedHashMap[1]:hashMap:fileFormatVersion\" : \"1.0.0\","
+            + " \":event:notificationFields:notificationFieldsVersion\" : \"2.0\" }";
+
+    @Test
+    void shouldFlattenNestedJsonAndSeparateKeysWithDoubleHash() {
+        JsonObject templateJson = GSON_HELPER.fromJson(NOTIFICATION_JSON, JsonObject.class);
+
+        JsonObject result = utils.flatten(templateJson);
+
+        assertThat(result).isEqualTo(GSON_HELPER.fromJson(EXPECTED_FLATTENED_NOTIFICATION, JsonObject.class));
+    }
+
+    @Test
+    void shouldWorkOnEmptyJsonObject() {
+        JsonObject result = utils.flatten(new JsonObject());
+
+        assertThat(result.toString()).isEqualTo("{}");
+    }
+
+    @Test
+    void shouldFlattenObjectWithArrayValue() {
+        String expectedFlattenedObjectWithArray = "{"
+                + " \":sample[0]\": 1,"
+                + " \":sample[1]\": 2,"
+                + " \":sample[2]\": 3}";
+        JsonObject jsonWithPrimitivesArray = GSON_HELPER.fromJson("{\"sample\": [1, 2, 3]}", JsonObject.class);
+
+        JsonObject result = utils.flatten(jsonWithPrimitivesArray);
+
+        assertThat(result).isEqualTo(GSON_HELPER.fromJson(expectedFlattenedObjectWithArray, JsonObject.class));
+    }
+
+    @Test
+    void shouldFlattenObjectWithEmptyArrayValue() {
+        String expectedFlattenedObjectWithEmptyArray = "{\":sample\": []}";
+        JsonObject jsonWithEmptyArrayValue = GSON_HELPER.fromJson("{\"sample\": []}", JsonObject.class);
+
+        JsonObject result = utils.flatten(jsonWithEmptyArrayValue);
+
+        assertThat(result).isEqualTo(GSON_HELPER.fromJson(expectedFlattenedObjectWithEmptyArray, JsonObject.class));
+    }
+
+    @Test
+    void shouldFlattenNestedObjectWithEmptyObjectValue() {
+        String expectedFlattenedNestedObjectWithEmptyObject = "{\":sample:key\": {}}";
+        JsonObject nestedJsonWithEmptyObject = GSON_HELPER.fromJson("{\"sample\": {\"key\":{}}}", JsonObject.class);
+
+        JsonObject result = utils.flatten(nestedJsonWithEmptyObject);
+
+        assertThat(result).isEqualTo(GSON_HELPER.fromJson(expectedFlattenedNestedObjectWithEmptyObject, JsonObject.class));
+    }
+
+    @Test
+    void shouldFlattenObjectWithDifferentDataTypes() {
+        String jsonWithDifferentDataTypes = "{ \"topLevelKey\": {\"sampleInt\": 1, \"sampleBool\": false, \"sampleDouble\": 10.0, \"sampleString\": \"str\"}}";
+        String expectedResult = "{\":topLevelKey:sampleInt\": 1,"
+                + " \":topLevelKey:sampleBool\": \"false\","
+                + " \":topLevelKey:sampleDouble\": 10.0,"
+                + " \":topLevelKey:sampleString\": \"str\"}";
+        JsonObject templateJson = GSON_HELPER.fromJson(jsonWithDifferentDataTypes, JsonObject.class);
+
+        JsonObject result = utils.flatten(templateJson);
+
+        assertThat(result).isEqualTo(GSON_HELPER.fromJson(expectedResult, JsonObject.class));
+    }
+
+    @Test
+    void shouldHandleNullValues() {
+        String jsonWithNullValue = "{ \"topLevelKey\": {\"sampleNull\": null, \"sampleString\": \"str\"}}";
+        String expectedResult = "{\":topLevelKey:sampleNull\": null,"
+                + " \":topLevelKey:sampleString\": \"str\"}";
+        JsonObject templateJson = GSON_HELPER.fromJson(jsonWithNullValue, JsonObject.class);
+
+        JsonObject result = utils.flatten(templateJson);
+
+        assertThat(result).isEqualTo(GSON_HELPER.fromJson(expectedResult, JsonObject.class));
+    }
+
+    @Test
+    void shouldFlattenBsonDocument() {
+        Document documentInput = Document.parse(NOTIFICATION_JSON);
+
+        Document result = utils.flatten(documentInput);
+
+        assertThat(result.toJson()).isEqualTo(EXPECTED_FLATTENED_NOTIFICATION);
+    }
+
+    @Test
+    void shouldNotChangeEmptyBsonDocument() {
+        Document input = Document.parse("{}");
+
+        Document result = utils.flatten(input);
+
+        assertThat(result.toJson()).isEqualTo("{ }");
+    }
+}