public void TestOneMissingWater()
{
var game = (new GameFactory()).GenerateEmptyGame(3, 4);
game.Grid[new GridPoint(2, 3)] = BimaruValue.SHIP_UNDETERMINED;
game.TargetNumberOfShipFieldsPerRow[0] = 2;
game.TargetNumberOfShipFieldsPerRow[1] = 2;
game.TargetNumberOfShipFieldsPerRow[2] = 3;
game.TargetNumberOfShipFieldsPerColumn[0] = 0;
game.TargetNumberOfShipFieldsPerColumn[1] = 3;
game.TargetNumberOfShipFieldsPerColumn[2] = 3;
game.TargetNumberOfShipFieldsPerColumn[3] = 1;
// 0331
// ----
// 3|???S
// 2|????
// 2|????
// => The only row or column with one missing WATER or ship
// is row 2 with one missing WATER.
var rule = new OneMissingShipOrWater(null);
var changesExpected = new FieldsToChange <BimaruValue>()
{
{ new GridPoint(2, 0), BimaruValue.WATER },
{ new GridPoint(2, 1), BimaruValue.WATER },
{ new GridPoint(2, 2), BimaruValue.WATER },
};
AssertEqualTrialChanges(changesExpected, rule.GetChangeTrials(game));
}
public void TestFullyDeterminedWithFallback()
{
var game = (new GameFactory()).GenerateEmptyGame(1, 1);
game.Grid[new GridPoint(0, 0)] = BimaruValue.SHIP_MIDDLE;
var rule = new OneMissingShipOrWater(new BruteForce());
Assert.AreEqual(0, rule.GetChangeTrials(game).Count());
}
public void TestFullyDeterminedWithoutFallback()
{
var game = (new GameFactory()).GenerateEmptyGame(1, 1);
game.Grid[new GridPoint(0, 0)] = BimaruValue.SHIP_MIDDLE;
var rule = new OneMissingShipOrWater(null);
Assert.ThrowsException <InvalidOperationException>(() => rule.GetChangeTrials(game).Count());
}
private ITrialAndErrorRule GetTrialRule(bool shallCountSolutions)
{
ITrialAndErrorRule trialRule;
if (shallCountSolutions)
{
trialRule = new OneMissingShipOrWater(new BruteForce());
}
else
{
trialRule = new LongestMissingShip();
}
return(trialRule);
}
public void TestNeverOneMissing()
{
var game = (new GameFactory()).GenerateEmptyGame(2, 4);
game.TargetNumberOfShipFieldsPerRow[0] = 2;
game.TargetNumberOfShipFieldsPerRow[1] = 2;
game.TargetNumberOfShipFieldsPerColumn[0] = 2;
game.TargetNumberOfShipFieldsPerColumn[1] = 0;
game.TargetNumberOfShipFieldsPerColumn[2] = 0;
game.TargetNumberOfShipFieldsPerColumn[3] = 2;
// 2002
// ----
// 2|????
// 2|????
// => No row or column with one missing WATER or ship.
var rule = new OneMissingShipOrWater(null);
// No fall-back rule but fall-back rule is needed.
Assert.ThrowsException <InvalidOperationException>(() => rule.GetChangeTrials(game));
// Check fall-back rule is called
var counter = new CountTrialCalls();
rule = new OneMissingShipOrWater(counter);
int numTrials = 0;
foreach (var changes in rule.GetChangeTrials(game))
{
Assert.IsNull(changes);
numTrials++;
}
Assert.AreEqual(1, numTrials);
Assert.AreEqual(1, counter.NumberOfTrialCalls);
}