public void Correct_size_depending_on_number_of_iterations(int iterations, int expectedSize)
{
var diamondSquare = new DiamondSquare(new NullOffsetGenerator());
var result = diamondSquare.Create(0, 1, 2, 3, iterations, 0);
result.Should().HaveCount(expectedSize);
}
public void Has_correct_values_for_zeroth_iteration()
{
var diamondSquare = new DiamondSquare(new NullOffsetGenerator());
var result = diamondSquare.Create(0, 1, 4, 8, 0, 0);
result.Should().BeEquivalentTo(new double[]
{
0, 1,
4, 8
});
}
public void Has_correct_values_for_first_iteration()
{
var diamondSquare = new DiamondSquare(new NullOffsetGenerator());
var result = diamondSquare.Create(0, 1, 4, 8, 1, 0);
result.Should().ContainInOrder(new[]
{
0, 1.0625, 1,
1.8125, 3.25, 3.0625,
4, 3.8125, 8
});
}
public void Has_correct_values_for_second_iteration()
{
var diamondSquare = new DiamondSquare(new NullOffsetGenerator());
var result = diamondSquare.Create(0, 1, 4, 8, 2, 0);
result.Should().BeEquivalentTo(new[]
{
0, 0.6484375, 1.0625, 1.0390625, 1,
0.8359375, 1.53125, 1.984375, 2.09375, 1.5390625,
1.8125, 2.453125, 3.25, 3.234375, 3.0625,
2.2578125, 3.21875, 3.703125, 4.53125, 3.8984375,
4, 2.7578125, 3.8125, 4.0859375, 8
});
}
public void Offsets_heights()
{
var diamondSquare = new DiamondSquare(new FakeOffsetGenerator(
new FakeOffsetGenerator.FakeOffset(1, 1, 128, 0.25),
new FakeOffsetGenerator.FakeOffset(1, -1, 128, 1),
new FakeOffsetGenerator.FakeOffset(-1, 1, 128, 2),
new FakeOffsetGenerator.FakeOffset(3, 1, 128, -1),
new FakeOffsetGenerator.FakeOffset(1, 3, 128, 1),
new FakeOffsetGenerator.FakeOffset(1, 0, 128, 1),
new FakeOffsetGenerator.FakeOffset(1, 2, 128, 2),
new FakeOffsetGenerator.FakeOffset(0, 1, 128, 1),
new FakeOffsetGenerator.FakeOffset(2, 1, 128, 1)));
var result = diamondSquare.Create(0, 1, 4, 8, 1, 128);
result.Should().ContainInOrder(new[]
{
0, 2.375, 1,
3.375, 3.5, 3.875,
4, 6.125, 8
});
}