public void Test_S2Cell_GetMaxDistanceToEdge()
{
// Test an edge for which its antipode crosses the cell. Validates both the
// standard and brute force implementations for this case.
S2Cell cell = S2Cell.FromFacePosLevel(0, 0, 20);
S2Point a = -S2.Interpolate(2.0, cell.Center(), cell.Vertex(0));
S2Point b = -S2.Interpolate(2.0, cell.Center(), cell.Vertex(2));
S1ChordAngle actual = cell.MaxDistance(a, b);
S1ChordAngle expected = GetMaxDistanceToEdgeBruteForce(cell, a, b);
Assert2.Near(expected.Radians(), S1ChordAngle.Straight.Radians(), S2.DoubleError);
Assert2.Near(actual.Radians(), S1ChordAngle.Straight.Radians(), S2.DoubleError);
}