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/*-
* ============LICENSE_START=======================================================
* ONAP : APPC
* ================================================================================
* Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
* ================================================================================
* Copyright (C) 2017 Amdocs
* =============================================================================
* 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.
*
* ECOMP is a trademark and service mark of AT&T Intellectual Property.
* ============LICENSE_END=========================================================
*/
package json2java;
import com.fasterxml.jackson.databind.JsonNode;
import com.fasterxml.jackson.databind.ObjectMapper;
import org.junit.Assert;
import org.junit.Before;
import org.junit.Test;
import org.openecomp.appc.generator.JsonHelper;
import java.io.File;
import java.io.IOException;
import java.lang.reflect.Field;
import java.lang.reflect.Method;
import java.util.*;
import java.util.regex.Pattern;
public class Json2JavaGeneratorTest {
private static JsonNode jsonNode = null;
private static final String MODEL_PACKAGE = "org.openecomp.appc.client.lcm.model";
private static final String GENERATED_LCM_API_CLASS = "org.openecomp.appc.client.lcm.api.LifeCycleManagerStateful";
//@Before
public void readIOfiles() throws IOException{
if(jsonNode == null){
jsonRead();
}
}
//@Test
public void testGeneratedJavaModel() {
Iterator<Map.Entry<String, JsonNode>> definitions = jsonNode.get("definitions").fields();
for (; definitions.hasNext(); ) {
Map.Entry<String, JsonNode> definitionEntry = definitions.next();
String definitionEntryKey = definitionEntry.getKey();
String className = MODEL_PACKAGE + "." + definitionEntryKey;
Class<?> generatedClass = null;
String errMsg = "the " + className + " was supposed to be generated, but not found";
try {
generatedClass = Class.forName(className);
Assert.assertNotNull(errMsg, generatedClass);
} catch (ClassNotFoundException e) {
Assert.fail(errMsg);
}
JsonNode properties = definitionEntry.getValue().get("properties");
if (generatedClass != null && properties != null && properties.fields() != null) {
Field[] declaredFields = generatedClass.getDeclaredFields();
Set<String> generatedFieldNames = new HashSet();
for(Field field : declaredFields){
generatedFieldNames.add(field.getName().toLowerCase());
}
Iterator<Map.Entry<String, JsonNode>> propertiesFields = properties.fields();
int totalExpectedFields = 0;
for (; propertiesFields.hasNext(); ) {
totalExpectedFields++;
Map.Entry<String, JsonNode> propertyEntry = propertiesFields.next();
String propertyEntryKey = propertyEntry.getKey();
String fieldNameFromJson = propertyEntryKey.replaceAll(Pattern.quote("-"),"").toLowerCase();
errMsg = "the field " + propertyEntryKey + " for " + className + " was supposed to be generated, but not found";
boolean contains = generatedFieldNames.contains(fieldNameFromJson);
Assert.assertTrue(errMsg, contains);
}
Assert.assertEquals("number of fields in "+className+" are not as expected!",totalExpectedFields,generatedFieldNames.size());
}
}
}
//@Test
public void testGeneratedJavaAPI() {
Map<String/*rpcOperation*/,Set<String> /*bodyInputParams*/> jsonBodyInputParams = new HashMap();
Map<String/*rpcOperation*/,Set<String> /*bodyOutputParams*/> jsonBodyOutputParams= new HashMap();
JsonHelper.populateRpcInputOutputSchemaRefFromJson(jsonNode,jsonBodyInputParams, jsonBodyOutputParams);
Assert.assertFalse(jsonBodyInputParams.isEmpty());
Assert.assertFalse(jsonBodyOutputParams.isEmpty());
//verify LifecycleManagementStatefulService was generated
Class<?> generatedClass = null;
String errMsg = "the " + GENERATED_LCM_API_CLASS + " was supposed to be generated, but not found";
try {
generatedClass = Class.forName(GENERATED_LCM_API_CLASS);
Assert.assertNotNull(errMsg, generatedClass);
} catch (ClassNotFoundException e) {
Assert.fail(errMsg);
}
//verify LifecycleManagementStatefulService was generated with methods
Method[] declaredMethods = generatedClass.getDeclaredMethods();
Assert.assertNotNull("no method was generated for "+GENERATED_LCM_API_CLASS,declaredMethods);
//verify correctness of input parameters and return type of each method
Set<String> generatedNonVoidMethods = new HashSet();
Set<String> generatedVoidMethods = new HashSet();
for(Method method : declaredMethods){
String returnType = method.getReturnType().getName();
Class<?>[] parameterTypes = method.getParameterTypes();
String methodName = method.getName().toLowerCase();
if(returnType.equals("void")){
generatedVoidMethods.add(methodName);
}else {
generatedNonVoidMethods.add(methodName);
//verify correctness of return type
String returnTypeSuffix = JsonHelper.getStringSuffix(returnType,".");
Set<String> jsonOutputParams = jsonBodyOutputParams.get(methodName);
Assert.assertNotNull(methodName+ " was not expected to return anything!",jsonOutputParams);
boolean contains = jsonOutputParams.contains(returnTypeSuffix);
Assert.assertTrue(methodName+ " was not expected to be with "+returnTypeSuffix+" return type!", contains);
}
//verify correctness of method input parameters
for (Class<?> parameterType :parameterTypes){
String parameterTypeSuffix = JsonHelper.getStringSuffix(parameterType.getName(), ".");
if(returnType.equals("void") && parameterTypeSuffix.equals("ResponseHandler")){
continue;
}
Set<String> jsonInputParams = jsonBodyInputParams.get(methodName);
Assert.assertNotNull(methodName+ " was not expected to be with any input parameter!",jsonInputParams);
boolean contains = jsonInputParams.contains(parameterTypeSuffix);
Assert.assertTrue(methodName+ " was not expected to be with "+parameterTypeSuffix+" parameter!", contains);
}
}
//verify total number of generated methods is same as expected
Assert.assertEquals("Total number of generated methods are not as expected!!",jsonBodyInputParams.size()*2,declaredMethods.length);
//verify all expected methods(void and non void) were generated
for(Map.Entry<String, Set<String>> rpcInputParams : jsonBodyInputParams.entrySet()){
errMsg = "none void method " + rpcInputParams.getKey() + "(case insensitive) for " + GENERATED_LCM_API_CLASS + " was supposed to be generated, but not found";
boolean contains = generatedNonVoidMethods.contains(rpcInputParams.getKey());
Assert.assertTrue(errMsg, contains);
errMsg = "void method " + rpcInputParams.getKey() + "(case insensitive) for " + GENERATED_LCM_API_CLASS + " was supposed to be generated, but not found";
contains = generatedVoidMethods.contains(rpcInputParams.getKey());
Assert.assertTrue(errMsg, contains);
}
}
private static void jsonRead ()throws IOException {
String jsonFilePath = System.getProperty("outputFile");
File file = new File(jsonFilePath);
ObjectMapper mapper = new ObjectMapper();
jsonNode = mapper.readTree(file);
}
}
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