func ExampleNewAllCellsIterator() {
for _, coordinates := range TicTacToe.NewAllCellsIterator() {
fmt.Println(coordinates)
}
// Output:
// {0 0}
// {0 1}
// {0 2}
// {1 0}
// {1 1}
// {1 2}
// {2 0}
// {2 1}
// {2 2}
}
// TestAllCellsIterator checks that the iterator actually goes through all cells
func TestAllCellsIterator(t *testing.T) {
expected := []TicTacToe.Coordinates{
{0, 0},
{0, 1},
{0, 2},
{1, 0},
{1, 1},
{1, 2},
{2, 0},
{2, 1},
{2, 2},
}
iterator := TicTacToe.NewAllCellsIterator()
assert.Len(t, iterator, len(expected))
for i, coordinates := range iterator {
if !assert.True(t, len(expected) > i, "Cell #%d", i) {
break
}
assert.Equal(t, expected[i], coordinates, "Line #%d, cell #%d", i)
}
}
