junit test dto class

private <T> void testDto(Class<T> clazz) throws InstantiationException, IllegalAccessException,
			NoSuchMethodException, SecurityException, IllegalArgumentException, InvocationTargetException {
		T obj = clazz.newInstance();
		T obj2 = clazz.newInstance();

		Field[] fields = clazz.getDeclaredFields();
		for (Field field : fields) {
			// serialVersionUIDは対象外とする。
			if (field.getName().equals("serialVersionUID")) {
				continue;
			}

			if (field.getName().contains("jacoco")) {
				continue;
			}

			String fieldName = field.getName();
			String typeName = field.getType().getName();

			if("boolean".equals(typeName) || "java.lang.Boolean".equals(typeName)) {
				if(fieldName.startsWith("is")) {
					fieldName = fieldName.substring(2);
				}
			}

			StringBuffer sbSet = new StringBuffer();
			sbSet.append("set");
			sbSet.append(fieldName.substring(0, 1).toUpperCase());
			sbSet.append(fieldName.substring(1));

			@SuppressWarnings("rawtypes")
			Class[] parameterTypes = new Class[1];
			parameterTypes[0] = field.getType();
			Method setMethod = clazz.getMethod(sbSet.toString(), parameterTypes);


			StringBuffer sbGet = new StringBuffer();
			if ("boolean".equals(typeName) || "java.lang.Boolean".equals(typeName)) {
				sbGet.append("is");
			} else {
				sbGet.append("get");
			}
			sbGet.append(fieldName.substring(0, 1).toUpperCase());
			sbGet.append(fieldName.substring(1));
			Method getMethod = clazz.getMethod(sbGet.toString());

			switch (typeName) {
			case "java.lang.String":
				setMethod.invoke(obj, "test");
				setMethod.invoke(obj2, "test");
				String val = (String) getMethod.invoke(obj);
				assertThat(val, is("test"));
				break;
			case "int":
			case "java.lang.Integer":
				setMethod.invoke(obj, 1);
				setMethod.invoke(obj2, 1);
				int valInt = (int) getMethod.invoke(obj);
				assertThat(valInt, is(1));
				break;
			case "long":
			case "java.lang.Long":
				setMethod.invoke(obj, 1L);
				setMethod.invoke(obj2, 1L);
				long valLong = (int) getMethod.invoke(obj);
				assertThat(valLong, is(1L));
				break;
			case "boolean":
			case "java.lang.Boolean":
				setMethod.invoke(obj, true);
				setMethod.invoke(obj2, true);
				boolean valBool = (boolean) getMethod.invoke(obj);
				assertThat(valBool, is(true));
				break;
			case "java.sql.Timestamp":
				Timestamp timestamp = new Timestamp(System.currentTimeMillis());
				setMethod.invoke(obj, timestamp);
				setMethod.invoke(obj2, timestamp);
				Timestamp valTime = (Timestamp) getMethod.invoke(obj);
				assertThat(valTime, is(timestamp));
				break;
			case "java.util.List":
		        ParameterizedType listClsType = (ParameterizedType) field.getGenericType();
		        @SuppressWarnings({ "unchecked", "unused" })
		        Class<T> listCls = (Class<T>) listClsType.getActualTypeArguments()[0];
		        ArrayList<T> list = new ArrayList<T>();
				setMethod.invoke(obj, list);
				setMethod.invoke(obj2, list);
				@SuppressWarnings("unchecked")
				ArrayList<T> valList = (ArrayList<T>) getMethod.invoke(obj);
				assertThat(valList, is(list));
				break;
			default:
	            Object newObj = field.getType().newInstance();
				setMethod.invoke(obj, newObj);
				setMethod.invoke(obj2, newObj);
				Object getObj = getMethod.invoke(obj);
				assertThat(getObj, is(newObj));
				break;
			}
		}

		assertThat(obj.equals(obj2), is(true));

		int hasCode1 = obj.hashCode();
		int hasCode2 = obj2.hashCode();
		assertThat(hasCode1, is(hasCode2));

		String str1 = obj.toString();
		String str2 = obj2.toString();
		assertThat(str1.equals(str2), is(true));

	}