public void Should_Have_Small_Execution_Time()
{
// Arrange.
int[] bigArray = this.GenerateBigRandomArray();
PairSumInArrayProblem suject = new PairSumInArrayProblem();
// Assert.
suject.ExecutionTimeOf(s => s.HasPairSumInArray(bigArray, 999))
.Should().BeLessOrEqualTo(TimeSpan.FromSeconds(1000));
}
public void Should_Return_False_If_Array_Is_Null_Or_Empty()
{
PairSumInArrayProblem suject = new PairSumInArrayProblem();
suject.HasPairSumInArray(null, 0).Should().BeFalse();
suject.HasPairSumInArray(null, 10).Should().BeFalse();
suject.HasPairSumInArray(new int[] { }, 0).Should().BeFalse();
suject.HasPairSumInArray(new int[] { }, 10).Should().BeFalse();
}
public void Should_Return_False_If_Pair_Sum_Is_Not_Present()
{
// Arrange.
int[] bigArray = this.GenerateBigRandomArray();
PairSumInArrayProblem suject = new PairSumInArrayProblem();
// Assert.
suject.HasPairSumInArray(new int[] { 0 }, 0).Should().BeFalse();
suject.HasPairSumInArray(new int[] { 7, 1, 7, 10, 2, 55, 31, 77 }, 15).Should().BeFalse();
suject.HasPairSumInArray(new int[] { 1, 1, 1, 1, 1, 1, 1, 1 }, 3).Should().BeFalse();
suject.HasPairSumInArray(bigArray, 999).Should().BeFalse();
}
