Environment proxy service mock class

EnvironmentProxyServiceMock.cs

    public class EnvironmentProxyServiceMock : IEnvironmentProxyService
    {
        public List<EnvironmentServiceModel> Environments => EnvironmentInitialData.EnvironmentServiceModels;

        public Dictionary<int, EnvironmentServiceModel> EnvironmentsMap => Environments.ToDictionary(item => item.EnvironmentId, item => item); 

        public EnvironmentServiceModel Get(int environmentId) => EnvironmentsMap.ContainsKey(environmentId) ? EnvironmentsMap[environmentId] : null;

        public List<EnvironmentTypeApiModel> EnvironmentTypes => EnvironmentInitialData.EnvironmentTypeModels;

        public Dictionary<int, EnvironmentTypeApiModel> EnvironmentTypesMap => EnvironmentTypes.ToDictionary(et => et.EnvironmentTypeId, et => et);

        public EnvironmentTypeApiModel GetType(int environmentTypeId) => EnvironmentTypesMap.ContainsKey(environmentTypeId)
            ? EnvironmentTypesMap[environmentTypeId]
            : null;

        // some methods omitted for brevity
    }