public void Test_IncreasingSequenceIsIncreasing()
{
var sequence = UniqueSequenceGenerator.GenerateIncreasingSequence(100 * 1000)
.ToList();
Assert.IsTrue(
sequence.Select((_item, _index) => _index == 0 || sequence[_index - 1] < _item)
.All(_ => _));
Assert.IsTrue(sequence.AllUnique());
}
public void Test_SequenceWithNonsensicalLengthThrows()
{
Assert.Throws <ArgumentOutOfRangeException>(
() =>
{
var foo = UniqueSequenceGenerator.GenerateDecreasingSequence(-1)
.ToList();
});
Assert.Throws <ArgumentOutOfRangeException>(
() =>
{
var foo = UniqueSequenceGenerator.GenerateIncreasingSequence(-1)
.ToList();
});
}
public void Test_SequenceWithNonNegativeLengthHasCorrectLength()
{
Assert.AreEqual(
0,
UniqueSequenceGenerator.GenerateDecreasingSequence(0)
.Count());
Assert.AreEqual(
0,
UniqueSequenceGenerator.GenerateIncreasingSequence(0)
.Count());
Assert.AreEqual(
10,
UniqueSequenceGenerator.GenerateDecreasingSequence(10)
.Count());
Assert.AreEqual(
10,
UniqueSequenceGenerator.GenerateIncreasingSequence(10)
.Count());
}
public void Test_IncreasingSequenceIsUnique()
{
var sequence = UniqueSequenceGenerator.GenerateIncreasingSequence(100 * 1000);
Assert.IsTrue(sequence.AllUnique());
}