public void GenerateBooleans_ShouldReturnOnlyNegatives_GivenZeroPositives()
{
IBooleansGenerator generator = new RandomBooleansGenerator();
bool[] result = generator.GenerateBooleans(10, 0);
result.All(x => !x).ShouldBeTrue();
}
public void GenerateBooleans_ShouldReturnOnlyPositives_GivenSameInputs()
{
IBooleansGenerator generator = new RandomBooleansGenerator();
bool[] result = generator.GenerateBooleans(10, 10);
result.All(x => x).ShouldBeTrue();
}
public void GenerateBooleans_ShouldReturnDifferent_ForDifferentSeed(int allCount, int positivesCount, int seedA, int seedB)
{
IBooleansGenerator generatorA = new RandomBooleansGenerator(seedA);
IBooleansGenerator generatorB = new RandomBooleansGenerator(seedB);
bool[] resultA = generatorA.GenerateBooleans(allCount, positivesCount);
bool[] resultB = generatorB.GenerateBooleans(allCount, positivesCount);
resultA.SequenceEqual(resultB).ShouldBeFalse();
}
public void GenerateBooleans_ShouldReturnSame_ForSameSeed(int allCount, int positivesCount, int seed)
{
IBooleansGenerator generatorA = new RandomBooleansGenerator(seed);
IBooleansGenerator generatorB = new RandomBooleansGenerator(seed);
bool[] resultA = generatorA.GenerateBooleans(allCount, positivesCount);
bool[] resultB = generatorB.GenerateBooleans(allCount, positivesCount);
resultA.SequenceEqual(resultB).ShouldBeTrue();
}
public void GenerateBooleans_ShouldReturnX_GivenXPositives(int allCount, int positivesCount)
{
IBooleansGenerator generator = new RandomBooleansGenerator();
bool[] result = generator.GenerateBooleans(allCount, positivesCount);
result.Length.ShouldBe(allCount);
result.Count(x => x).ShouldBe(positivesCount);
result.Count(x => !x).ShouldBe(allCount - positivesCount);
}
public void GenerateBooleans_ShouldThrowException_GivenInvalidInputs(int allCount, int positivesCount)
{
IBooleansGenerator generator = new RandomBooleansGenerator();
Should.Throw <ArgumentException>(() => generator.GenerateBooleans(allCount, positivesCount));
}