/// <summary>
/// Fetch and return specific key in result
/// </summary>
private CommandResult Read(string key)
{
try
{
if (key is null)
{
throw new ArgumentNullException("key");
}
return(new SuccessResult <string>
{
Result = _store.GetValue(key)
});
}
catch (KeyNotFoundInRepositoryException)
{
return(new FailureResult
{
ErrorMessage = "key not found"
});
}
catch (ArgumentNullException e)
{
return(new FailureResult
{
ErrorMessage = e.ParamName + " is required"
});
}
}
/// <summary>
/// Generate sequence of actions that set then get KeyValue in provided repository.
/// </summary>
private static Action[] GenerateTestSeqSetRead(int elementsCount, IKeyValueRepository store)
{
var actions = new Action[elementsCount];
for (var i = 0; i < elementsCount; i++)
{
var indx = i;
actions[i] = () => {
store.SetValue(indx.ToString(), indx.ToString());
Assert.Equal(store.GetValue(indx.ToString()), indx.ToString());
};
}
return(actions);
}
/// <summary>
/// Generate sequence of actions that set then delete then expected throw on attempt to get KeyValue in provided repository.
/// </summary>
private static Action[] GenerateTestSeqSetDelete(int elementsCount, IKeyValueRepository store)
{
var actions = new Action[elementsCount];
for (var i = 0; i < elementsCount; i++)
{
var indx = i;
actions[i] = () => {
store.SetValue(indx.ToString(), indx.ToString());
store.DeleteValue(indx.ToString());
Assert.Throws(typeof(KeyNotFoundInRepositoryException), () => store.GetValue(indx.ToString()));
};
}
return(actions);
}