private static Result TestFindClosestEdges(Target target, S2ClosestEdgeQuery query)
{
List <Result> expected = new(), actual = new();
query.Options_.UseBruteForce = (true);
GetClosestEdges(target, query, expected);
query.Options_.UseBruteForce = (false);
GetClosestEdges(target, query, actual);
Assert.True(TestingDistance.CheckDistanceResults(ConvertResults(expected),
ConvertResults(actual),
query.Options_.MaxResults,
query.Options_.MaxDistance,
query.Options_.MaxError));
if (!expected.Any())
{
return(new Result());
}
// Note that when options.max_error() > 0, expected[0].distance() may not
// be the minimum distance. It is never larger by more than max_error(),
// but the actual value also depends on max_results().
//
// Here we verify that GetDistance() and IsDistanceLess() return results
// that are consistent with the max_error() setting.
var max_error = query.Options_.MaxError;
var min_distance = expected[0].Distance;
Assert.True(query.GetDistance(target) <= min_distance + max_error);
// Test IsDistanceLess().
Assert.False(query.IsDistanceLess(target, min_distance - max_error));
Assert.True(query.IsConservativeDistanceLessOrEqual(target, min_distance));
// Return the closest edge result so that we can also test Project.
return(expected[0]);
}
