Add test for missing code covereage

- Add test for error scenarios and otehr mising tests
- set up for SpringBean testing
- some small typo fixes
- fixed some SQ violations

Issue-ID: CPS-656

Change-Id: If33f215c8ecaf090f27145005cc1aa7f0331d0f4
Signed-off-by: ToineSiebelink <toine.siebelink@est.tech>

4 files changed, 26 insertions, 34 deletions

diff --git a/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/impl/JsonUtils.java b/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/impl/JsonUtils.java
index 9ce32e3906..6768777e17 100644
--- a/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/impl/JsonUtils.java
+++ b/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/impl/JsonUtils.java
@@ -26,6 +26,9 @@ public class JsonUtils {
     private static final String NEW_LINE = "\n";
     private static final String QUOTE = "\"";
 
+    private JsonUtils() {
+        throw new IllegalStateException();
+    }
 
     /**
      * Remove redundant beginning and end characters.
diff --git a/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/impl/NetworkCmProxyDataServiceImpl.java b/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/impl/NetworkCmProxyDataServiceImpl.java
index 24203c0d7f..a28b73c427 100755
--- a/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/impl/NetworkCmProxyDataServiceImpl.java
+++ b/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/impl/NetworkCmProxyDataServiceImpl.java
@@ -76,6 +76,8 @@ public class NetworkCmProxyDataServiceImpl implements NetworkCmProxyDataService
 
     private static  final String NCMP_DMI_SERVICE_NAME = "dmi-service-name";
 
+    private  static final String REVISION = "revision";
+
     private CpsDataService cpsDataService;
 
     private ObjectMapper objectMapper;
@@ -88,8 +90,6 @@ public class NetworkCmProxyDataServiceImpl implements NetworkCmProxyDataService
 
     private CpsAdminService cpsAdminService;
 
-    public static final String NO_NAMESPACE = null;
-
     /**
      * Constructor Injection for Dependencies.
      * @param dmiOperations DMI operation
@@ -279,11 +279,11 @@ public class NetworkCmProxyDataServiceImpl implements NetworkCmProxyDataService
     private String getGenericRequestBody(final DataNode cmHandleDataNode) {
         final Collection<DataNode> cmHandlePropertiesList = cmHandleDataNode.getChildDataNodes();
         final Map<String, String> cmHandlePropertiesMap = getCmHandlePropertiesAsMap(cmHandlePropertiesList);
-        final var requetBodyObject = GenericRequestBody.builder()
+        final var requestBodyObject = GenericRequestBody.builder()
                 .operation(GenericRequestBody.OperationEnum.READ)
                 .cmHandleProperties(cmHandlePropertiesMap)
                 .build();
-        return prepareOperationBody(requetBodyObject);
+        return prepareOperationBody(requestBodyObject);
     }
 
     private void parseAndUpdateCmHandlesInDmiRegistration(final DmiPluginRegistration dmiPluginRegistration) {
@@ -299,10 +299,7 @@ public class NetworkCmProxyDataServiceImpl implements NetworkCmProxyDataService
             cpsDataService.updateNodeLeavesAndExistingDescendantLeaves(NCMP_DATASPACE_NAME, NCMP_DMI_REGISTRY_ANCHOR,
                 "/dmi-registry", cmHandlesJsonData, NO_TIMESTAMP);
         } catch (final JsonProcessingException e) {
-            log.error("Parsing error occurred while converting Object to JSON DMI Registry.");
-            throw new DataValidationException(
-                "Parsing error occurred while processing DMI Plugin Registration" + dmiPluginRegistration, e
-                .getMessage(), e);
+            handleJsonProcessingException(dmiPluginRegistration, e);
         }
     }
 
@@ -317,17 +314,21 @@ public class NetworkCmProxyDataServiceImpl implements NetworkCmProxyDataService
             }
             final String cmHandleJsonData = objectMapper.writeValueAsString(persistenceCmHandlesList);
 
-            registerAndSyncNode(dmiPluginRegistration, persistenceCmHandlesList, cmHandleJsonData);
+            registerAndSyncNode(persistenceCmHandlesList, cmHandleJsonData);
         } catch (final JsonProcessingException e) {
-            log.error("Parsing error occurred while converting Object to JSON for DMI Registry.");
-            throw new DataValidationException(
-                "Parsing error occurred while processing DMI Plugin Registration" + dmiPluginRegistration, e
-                .getMessage(), e);
+            handleJsonProcessingException(dmiPluginRegistration, e);
         }
     }
 
-    private void registerAndSyncNode(final DmiPluginRegistration dmiPluginRegistration,
-                                     final PersistenceCmHandlesList persistenceCmHandlesList,
+    private static void handleJsonProcessingException(final DmiPluginRegistration dmiPluginRegistration,
+                                                      final JsonProcessingException e) {
+        final String message = "Parsing error occurred while processing DMI Plugin Registration"
+            + dmiPluginRegistration;
+        log.error(message);
+        throw new DataValidationException(message, e.getMessage(), e);
+    }
+
+    private void registerAndSyncNode(final PersistenceCmHandlesList persistenceCmHandlesList,
                                      final String cmHandleJsonData) {
         cpsDataService.saveListNodeData(NCMP_DATASPACE_NAME, NCMP_DMI_REGISTRY_ANCHOR, "/dmi-registry",
             cmHandleJsonData, NO_TIMESTAMP);
@@ -390,7 +391,7 @@ public class NetworkCmProxyDataServiceImpl implements NetworkCmProxyDataService
         cpsAdminService.createAnchor(NF_PROXY_DATASPACE_NAME, cmHandle.getId(), cmHandle.getId());
     }
 
-    private JsonObject getRequestBodyAsJson(final List<ModuleReference> unknownModuleReferences) {
+    private static JsonObject getRequestBodyAsJson(final List<ModuleReference> unknownModuleReferences) {
 
         final JsonObject requestBodyAsJson = new JsonObject();
         requestBodyAsJson.addProperty("operation", "read");
@@ -404,13 +405,13 @@ public class NetworkCmProxyDataServiceImpl implements NetworkCmProxyDataService
         return requestBodyAsJson;
     }
 
-    private JsonArray getModuleReferencesAsJson(final List<ModuleReference> unknownModuleReferences) {
+    private static JsonArray getModuleReferencesAsJson(final List<ModuleReference> unknownModuleReferences) {
         final JsonArray moduleReferences = new JsonArray();
 
         for (final ModuleReference moduleReference : unknownModuleReferences) {
             final JsonObject moduleReferenceAsJson = new JsonObject();
             moduleReferenceAsJson.addProperty("name", moduleReference.getModuleName());
-            moduleReferenceAsJson.addProperty("revision", moduleReference.getRevision());
+            moduleReferenceAsJson.addProperty(REVISION, moduleReference.getRevision());
             moduleReferences.add(moduleReferenceAsJson);
         }
         return moduleReferences;
@@ -444,7 +445,7 @@ public class NetworkCmProxyDataServiceImpl implements NetworkCmProxyDataService
         return yangResource;
     }
 
-    private List<ModuleReference> getModuleReferences(final ResponseEntity<String> response) {
+    private static List<ModuleReference> getModuleReferences(final ResponseEntity<String> response) {
         final List<ModuleReference> modulesFromDmiForCmHandle = new ArrayList<>();
         final JsonObject convertedObject = new Gson().fromJson(response.getBody(), JsonObject.class);
         final JsonArray moduleReferencesAsJson = convertedObject.getAsJsonArray("schemas");
@@ -456,7 +457,7 @@ public class NetworkCmProxyDataServiceImpl implements NetworkCmProxyDataService
         return modulesFromDmiForCmHandle;
     }
 
-    private ModuleReference toModuleReference(final JsonObject moduleReferenceAsJson) {
+    private static ModuleReference toModuleReference(final JsonObject moduleReferenceAsJson) {
         final var moduleReference = new ModuleReference();
         moduleReference.setModuleName(moduleReferenceAsJson.get("moduleName").getAsString());
         moduleReference.setRevision(moduleReferenceAsJson.get("revision").getAsString());
diff --git a/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/impl/config/NcmpConfiguration.java b/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/impl/config/NcmpConfiguration.java
index a834bfcd90..c4e82d3290 100644
--- a/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/impl/config/NcmpConfiguration.java
+++ b/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/impl/config/NcmpConfiguration.java
@@ -41,7 +41,7 @@ public class NcmpConfiguration {
     }
 
     @Bean
-    public RestTemplate restTemplate(final RestTemplateBuilder restTemplateBuilder) {
+    public static RestTemplate restTemplate(final RestTemplateBuilder restTemplateBuilder) {
         return restTemplateBuilder.build();
     }
-}
\ No newline at end of file
+}
diff --git a/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/impl/exception/NcmpException.java b/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/impl/exception/NcmpException.java
index ff53464096..2c75b5d992 100644
--- a/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/impl/exception/NcmpException.java
+++ b/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/impl/exception/NcmpException.java
@@ -43,17 +43,5 @@ public class NcmpException extends RuntimeException {
         this.details = details;
     }
 
-    /**
-     * Constructor.
-     *
-     * @param message the error message
-     * @param details the error details
-     * @param cause   the cause of the exception
-     */
-    public NcmpException(final String message, final String details, final Throwable cause) {
-        super(message, cause);
-        this.details = details;
-    }
-
 }