public void CountIslands_WithNoIslands_ReturnsZero()
{
// Arrange
var map = new bool[2, 2];
// Act
var actual = CountingIslands.CountIslands(map);
// Assert
Assert.AreEqual(0, actual);
}
public void CountIslands_WithOneIsland_ReturnsOne()
{
// Arrange
var map = new bool[2, 2];
map[0, 0] = true;
// Act
var actual = CountingIslands.CountIslands(map);
// Assert
Assert.AreEqual(1, actual);
}
public void CountIslands_WithTwoIslandsDiagonal_ReturnsTwo()
{
// Arrange
var map = new bool[2, 2];
map[0, 0] = true;
map[1, 1] = true;
// Act
var actual = CountingIslands.CountIslands(map);
// Assert
Assert.AreEqual(2, actual);
}
public void CountIslands_WithOneIslandMultipleDirections_ReturnsOne()
{
// Arrange
var map = new bool[3, 3];
map[0, 0] = true;
map[0, 1] = true;
map[0, 2] = true;
map[1, 0] = true;
map[2, 0] = true;
// Act
var actual = CountingIslands.CountIslands(map);
// Assert
Assert.AreEqual(1, actual);
}