add: new tictactoe game

add: testing to tictactoe

rename: tictactoe

add: tictactoe steps

refactor: tictactoe const names

refactor: tictactoe loop

add: tictactoe bad switch example (fallthrough)

refactor: tictactoe loop skin

remove: tictactoe changable skin

refactor: tictactoe all

remove: tictactoe unnecessary base dir

add: tictactoe slices

add: tictactoe slices

remove: tictactoe fallthrough

rename: tictactoe slices 10 -> 09

update: loops skin tictactoe

add: tictactoe randomization

add: tictactoe infinite loop and labeled break

refactor: tictactoe rand and infinite loop

add: tictactoe buggy winning algo

add: tictactoe more tests

rename: tictactoe wrongPlay to wrongMove

add: tictactoe even more tests

fix: tictactoe

rename: tictactoe waitForInput to wait

add: tictactoe os.args gameSpeed

remove: tictactoe unnecessary files

rename: tictactoe game messages

refactor: tictactoe main loop

add: types and arrays

x-tba/tictactoe/15-os-args/ending_test.go

@@ -0,0 +1,59 @@
+package main
+
+import "testing"
+
+func TestWin(t *testing.T) {
+	// /---+---+---\
+	// | O | X | X |
+	// +---+---+---+
+	// | O | O | X |
+	// +---+---+---+
+	// | X | O | X |
+	// \---+---+---/
+
+	cells[0] = player2
+	cells[1] = player1
+	cells[2] = player1
+	cells[3] = player2
+	cells[4] = player2
+	cells[5] = player1
+	cells[6] = player1
+	cells[7] = player2
+	cells[8] = player1
+	turn = maxTurns
+
+	if checkWinOrTie(); !won {
+		t.Errorf("won = %t; want true", won)
+	}
+
+	// TestWin was messing up with the results.
+	// Test ordering shouldn't be important.
+	initCells()
+}
+
+func TestTie(t *testing.T) {
+	// /---+---+---\
+	// | O | X | X |
+	// +---+---+---+
+	// | X | O | O |
+	// +---+---+---+
+	// | X | O | X |
+	// \---+---+---/
+
+	cells[0] = player2
+	cells[1] = player1
+	cells[2] = player1
+	cells[3] = player1
+	cells[4] = player2
+	cells[5] = player2
+	cells[6] = player1
+	cells[7] = player2
+	cells[8] = player1
+	turn = maxTurns
+
+	if checkWinOrTie(); !tie {
+		t.Errorf("tie = %t; want true", tie)
+	}
+
+	initCells()
+}