public void GraphGridNeighborService_ShouldFindAllValidInCorner(int x, int y)
{
// Arrange
var node = new Vector2Int(x, y);
var graphMock = new Mock <IGraph>();
graphMock.Setup(g => g.Width).Returns(3);
graphMock.Setup(g => g.Height).Returns(3);
graphMock.Setup(g => g.GetTransition(node, It.IsAny <Vector2Int>())).Returns(0);
var neighborService = new GraphGridNeighborsService(1);
// Act
var result = new List <Vector2Int>();
neighborService.GetNeighbors(graphMock.Object, node, result);
// Assert
Assert.True(result.Distinct().Count(n => n != node) == 3);
var distances = result.Select(n => Vector2Int.Distance(n, node)).Distinct().ToArray();
Assert.True(distances.Count() == 2);
Assert.True(Math.Abs(distances.Min() - 1) < 0.00001);
Assert.True(Math.Abs(distances.Max() - Math.Sqrt(2)) < 0.00001);
}
public void GraphGridNeighborService_ShouldFindWithDropUnreachable()
{
// Arrange
var node = new Vector2Int(1, 1);
var graphMock = new Mock <IGraph>();
graphMock.Setup(g => g.Width).Returns(3);
graphMock.Setup(g => g.Height).Returns(3);
graphMock.SetupSequence(g => g.GetTransition(node, It.IsAny <Vector2Int>()))
.Returns(0)
.Returns(2)
.Returns(0)
.Returns(2)
.Returns(0)
.Returns(2)
.Returns(0)
.Returns(2);
var neighborService = new GraphGridNeighborsService(1);
// Act
var result = new List <Vector2Int>();
neighborService.GetNeighbors(graphMock.Object, node, result);
// Assert
Assert.True(result.Distinct().Count(n => n != node) == 4);
var distances = result.Select(n => Vector2Int.Distance(n, node)).Distinct().ToArray();
Assert.True(distances.Count() == 1);
Assert.True(Math.Abs(distances.First() - 1) < 0.00001);
}
public void GraphGridNeighborService_ShouldThrowIfGraphIsNull()
{
// Arrange
var neighborService = new GraphGridNeighborsService(1);
// Act/Assert
Assert.Throws <ArgumentNullException>(() =>
{
neighborService.GetNeighbors(null, new Vector2Int(), new List <Vector2Int>());
});
}
public void GraphGridNeighborService_ShouldThrowIfCurrentNotInBounds(int x, int y)
{
// Arrange
var node = new Vector2Int(x, y);
var graphMock = new Mock <IGraph>();
graphMock.Setup(g => g.Width).Returns(1);
graphMock.Setup(g => g.Height).Returns(1);
var neighborService = new GraphGridNeighborsService(1);
// Act/Assert
Assert.Throws <ArgumentException>(() =>
{
neighborService.GetNeighbors(graphMock.Object, node, new List <Vector2Int>());
});
}
