// testCaptureLoop is a simulateTestCaseGenerator which generates a test case
// where the current mancala.Player captures after looping around the
// mancala.Board.
func testCaptureLoop(player mancala.PlayerIndex) simulateTestCase {
grid := mancala.Grid{}
grid[player] = mancala.Row{17, 0, 0, 0, 0, 0}
grid[player.Other()] = mancala.Row{}
board := mancala.NewInitializedBoard(0, 0, grid)
expectedGrid := mancala.Grid{}
expectedGrid[player] = mancala.Row{0, 2, 2, 2, 2, 2}
expectedGrid[player.Other()] = mancala.Row{0, 1, 1, 1, 1, 1}
player1Score := 0
player2Score := 0
if player == mancala.Player1 {
player1Score += 2
} else {
player2Score += 2
}
expectedBoard := mancala.NewInitializedBoard(
player1Score, player2Score,
expectedGrid,
)
return simulateTestCase{
referee: mancala.NewInitializedReferee(
[]mancala.Board{},
board,
),
move: 0,
expectedBoard: expectedBoard,
expectedErr: nil,
}
}
// testAlreadySeenBoard is a simulateTestCaseGenerator which generates a test
// case where the current mancala.Board is in the mancala.Referee's
// mancala.Board history.
func testAlreadySeenBoard(player mancala.PlayerIndex) simulateTestCase {
seenGrid := mancala.Grid{}
seenGrid[player] = mancala.Row{0, 1, 1, 1, 1, 1}
seenGrid[player.Other()] = mancala.Row{1, 0, 0, 0, 0, 0}
grid := mancala.Grid{}
grid[player] = mancala.Row{5, 0, 0, 0, 0, 0}
grid[player.Other()] = mancala.Row{1, 0, 0, 0, 0, 0}
referee := mancala.NewInitializedReferee(
[]mancala.Board{mancala.NewInitializedBoard(0, 0, seenGrid)},
mancala.NewInitializedBoard(0, 0, grid),
)
player1Score := 0
player2Score := 0
if player == mancala.Player1 {
player1Score += 5
player2Score++
} else {
player2Score += 5
player1Score++
}
expectedBoard := mancala.NewInitializedBoard(
player1Score, player2Score,
mancala.Grid{},
)
return simulateTestCase{
referee: referee,
move: 0,
expectedBoard: expectedBoard,
expectedErr: nil,
}
}
// testNoSeedsCantReach is a simulateTestCaseGenerator which generates a test
// case where the other mancala.Player has no seeds and the current
// mancala.Player doesn't have a move which will give the other mancala.Player
// seeds.
func testNoSeedsCantReach(player mancala.PlayerIndex) simulateTestCase {
grid := mancala.Grid{}
grid[player] = mancala.Row{0, 0, 1, 1, 0, 0}
board := mancala.NewInitializedBoard(0, 0, grid)
player1Score := 0
player2Score := 0
if player == mancala.Player1 {
player1Score += 2
} else {
player2Score += 2
}
advancedBoard := mancala.NewInitializedBoard(
player1Score, player2Score,
mancala.Grid{},
)
return simulateTestCase{
referee: mancala.NewInitializedReferee(
[]mancala.Board{},
board,
),
move: 2,
expectedBoard: advancedBoard,
expectedErr: nil,
}
}
// makePlayerBoard makes a mancala.Board with a mancala.Grid from
// makePlayerGrid, player 1's score being mancala.Player1, and player 2's score
// being mancala.Player2.
func makePlayerBoard() mancala.Board {
grid := makePlayerGrid()
return mancala.NewInitializedBoard(
mancala.Player1, mancala.Player2,
grid,
)
}
// testCaptureAllHouses is a simulateTestCaseGenerator which generates a test
// case where the current mancala.Player captures all of the other
// mancala.Player's houses from the end of the other mancala.Player's row to the
// beginning.
func testCaptureAllHouses(player mancala.PlayerIndex) simulateTestCase {
grid := mancala.Grid{}
grid[player] = mancala.Row{0, 0, 0, 0, 0, 6}
grid[player.Other()] = mancala.Row{1, 1, 1, 1, 1, 1}
board := mancala.NewInitializedBoard(0, 0, grid)
expectedGrid := mancala.Grid{}
expectedGrid[player] = mancala.Row{}
expectedGrid[player.Other()] = mancala.Row{2, 2, 2, 2, 2, 2}
expectedBoard := mancala.NewInitializedBoard(0, 0, expectedGrid)
return simulateTestCase{
referee: mancala.NewInitializedReferee(
[]mancala.Board{}, board,
),
move: 5,
expectedBoard: expectedBoard,
expectedErr: nil,
}
}
// testSowLoopToStart is a simulateTestCaseGenerator which generates a test case
// where the current mancala.Player sows in a loop around the mancala.Board just
// past the house the mancala.Player started sowing from.
func testSowLoopToStart(player mancala.PlayerIndex) simulateTestCase {
grid := mancala.Grid{}
grid[player] = mancala.Row{0, 0, 0, 0, 0, 45}
grid[player.Other()] = mancala.Row{}
board := mancala.NewInitializedBoard(0, 0, grid)
expectedGrid := mancala.Grid{}
expectedGrid[player] = mancala.Row{4, 4, 4, 4, 4, 0}
expectedGrid[player.Other()] = mancala.Row{5, 4, 4, 4, 4, 4}
expectedBoard := mancala.NewInitializedBoard(0, 0, expectedGrid)
return simulateTestCase{
referee: mancala.NewInitializedReferee(
[]mancala.Board{}, board,
),
move: 5,
expectedBoard: expectedBoard,
expectedErr: nil,
}
}
// testSowToOtherSide is a simulateTestCaseGenerator which generates a test case
// where the current mancala.Player sows to the middle of the other
// mancala.Player's mancala.Row.
func testSowToOtherSide(player mancala.PlayerIndex) simulateTestCase {
grid := mancala.Grid{}
grid[player] = mancala.Row{0, 0, 6, 0, 0, 0}
grid[player.Other()] = mancala.Row{}
board := mancala.NewInitializedBoard(0, 0, grid)
expectedGrid := mancala.Grid{}
expectedGrid[player] = mancala.Row{0, 0, 0, 1, 1, 1}
expectedGrid[player.Other()] = mancala.Row{1, 1, 1, 0, 0, 0}
expectedBoard := mancala.NewInitializedBoard(0, 0, expectedGrid)
return simulateTestCase{
referee: mancala.NewInitializedReferee(
[]mancala.Board{}, board,
),
move: 2,
expectedBoard: expectedBoard,
expectedErr: nil,
}
}
// expectedBoard returns a shortPlayer's mancala.Game's expected final
// mancala.Board.
func (short *shortPlayer) expectedBoard() mancala.Board {
return mancala.NewInitializedBoard(
2, 26,
mancala.Grid{
mancala.Row{1, 0, 0, 0, 0, 0},
mancala.Row{1, 0, 5, 1, 2, 10},
},
)
}
// testNoSeeds is a simulateTestCaseGenerator which generates a test case where
// the other mancala.Player has no seeds and the current mancala.Player has a
// move which will give the other mancala.Player seeds and doesn't make it.
func testNoSeedsCanReach(player mancala.PlayerIndex) simulateTestCase {
grid := mancala.Grid{}
grid[player] = mancala.Row{1, 0, 0, 0, 0, 1}
board := mancala.NewInitializedBoard(0, 0, grid)
return simulateTestCase{
referee: mancala.NewInitializedReferee(
[]mancala.Board{}, board,
),
move: 0,
expectedBoard: board,
expectedErr: fmt.Errorf(
"moves exist which can give %v seeds but move at %d "+
"doesn't",
player.Other(),
0,
),
}
}
// testNoSeeds is a simulateTestCaseGenerator which generates a test case where
// the current mancala.Player tries to sow from a house with no seeds.
func testNoSeeds(player mancala.PlayerIndex) simulateTestCase {
return simulateTestCase{
referee: mancala.NewInitializedReferee(
[]mancala.Board{},
mancala.Board{},
),
move: 0,
expectedBoard: mancala.NewInitializedBoard(
0, 0,
mancala.Grid{},
),
expectedErr: fmt.Errorf(
"house at board.RowFor(%v)[%d] has 0 seeds",
player,
0,
),
}
}
// TestFinishInitializedGame tests that mancala.FinishInitializedGame returns
// the correct mancala.Result from an already in progress mancala.Game described
// by a shortPlayer.
func TestFinishInitializedGame(t *testing.T) {
t.Parallel()
turnOffSet := 10
player1 := newShortPlayer(mancala.Player1 + turnOffSet)
player2 := newShortPlayer(mancala.Player2 + turnOffSet)
referee := mancala.NewInitializedReferee(
[]mancala.Board{},
mancala.NewInitializedBoard(
2, 15,
mancala.Grid{
mancala.Row{0, 2, 1, 1, 1, 1},
mancala.Row{1, 10, 4, 0, 1, 9},
},
),
)
actual := mancala.FinishInitializedGame(
referee,
player1,
player2,
mancala.Player2,
turnOffSet+1,
)
expected := mancala.NewResult(
player1.expectedBoard(),
player1.expectedWinner(),
player1.expectedMoveCount(),
player1.expectedLastMove(),
nil,
)
if actual != expected {
t.Errorf(
"FinishInitializedGame(\n\t%v,\n\t%v,\n\t%v,\n\t%v,\n)"+
" = \n%v, want \n%v",
referee,
player1,
player2,
mancala.Player2,
actual,
expected,
)
}
}
// TestGameIsOver tests that mancala.Game::IsOver returns whether or not a
// mancala.Game is over for the possible ways an Oware game can end.
func TestGameIsOver(t *testing.T) {
t.Parallel()
actual := mancala.NewGame(errPlayer{}, errPlayer{}).IsOver()
expected := false
if actual != expected {
t.Errorf(
"game.IsOver() = %v, want %v with no win",
actual,
expected,
)
}
actual = mancala.NewInitializedGame(
mancala.NewInitializedReferee(
[]mancala.Board{},
mancala.NewInitializedBoard(
(mancala.DefaultSeedCount/2)+1,
(mancala.DefaultSeedCount/2)-1,
mancala.Grid{},
),
),
errPlayer{},
errPlayer{},
mancala.Player1,
0,
).IsOver()
expected = true
if actual != expected {
t.Errorf(
"game.IsOver() = %v, want %v with player 1 win",
actual,
expected,
)
}
actual = mancala.NewInitializedGame(
mancala.NewInitializedReferee(
[]mancala.Board{},
mancala.NewInitializedBoard(
(mancala.DefaultSeedCount/2)-1,
(mancala.DefaultSeedCount/2)+1,
mancala.Grid{},
),
),
errPlayer{},
errPlayer{},
mancala.Player2,
0,
).IsOver()
expected = true
if actual != expected {
t.Errorf(
"game.IsOver() = %v, want %v with player 2 win",
actual,
expected,
)
}
actual = mancala.NewInitializedGame(
mancala.NewInitializedReferee(
[]mancala.Board{},
mancala.NewInitializedBoard(
mancala.DefaultSeedCount/2,
mancala.DefaultSeedCount/2,
mancala.Grid{},
),
),
errPlayer{},
errPlayer{},
-1,
0,
).IsOver()
expected = true
if actual != expected {
t.Errorf(
"game.IsOver() = %v, want %v with tie",
actual,
expected,
)
}
errGame := mancala.NewGame(errPlayer{}, errPlayer{})
errGame.PlayMove()
actual = errGame.IsOver()
expected = true
if actual != expected {
t.Errorf(
"game.IsOver() = %v, want %v with error",
actual,
expected,
)
}
}
// TestGamePlayMove tests that mancala.Game::PlayMove returns the mancala.Result
// after a move in a shortPlayer mancala.Game and updates the mancala.Game
// state.
func TestGamePlayMove(t *testing.T) {
t.Parallel()
game := mancala.NewGame(badPlayer{}, errPlayer{})
actual := game.PlayMove().Err()
expected := fmt.Errorf(
"move at house %d is out of range [%d, %d]",
-1,
0,
mancala.RowWidth-1,
)
if actual.Error() != expected.Error() {
t.Errorf(
"game.PlayMove().Err().Error() = %s, want %s",
actual.Error(),
expected.Error(),
)
}
game = mancala.NewGame(errPlayer{}, badPlayer{})
actual = game.PlayMove().Err()
expected = errors.New("error")
if actual.Error() != expected.Error() {
t.Errorf(
"game.PlayMove().Err().Error() = %s, want %s",
actual.Error(),
expected.Error(),
)
}
game = mancala.NewGame(
newShortPlayer(mancala.Player1),
newShortPlayer(mancala.Player2),
)
actualResult := game.PlayMove()
expectedResult := mancala.NewResult(
mancala.NewInitializedBoard(
0, 0,
mancala.Grid{
mancala.Row{4, 4, 4, 0, 5, 5},
mancala.Row{5, 5, 4, 4, 4, 4},
},
),
-1,
1,
3,
nil,
)
if actualResult != expectedResult {
t.Errorf(
"game.PlayMove() = \n%v, want \n%v",
actualResult,
expectedResult,
)
}
actualPlayer := game.CurrentPlayer()
expectedPlayer := mancala.PlayerIndex(mancala.Player2)
if actualPlayer != expectedPlayer {
t.Errorf(
"game.CurrentPlayer() = %v, want %v",
actualPlayer,
expectedPlayer,
)
}
}
