public void EnumerateSubsetCombinations_ReturnsFourCombinations_ForTwoElementAndTwoSubsets()
{
TestHelper.AssertSequence(
Set.EnumerateSubsetCombinations(new[] { 11, 19 }, 2),
new[]
{
new[] { 11, 19 },
new int[] { }
},
new[]
{
new[] { 11 },
new[] { 19 }
},
new[]
{
new[] { 19 },
new[] { 11 }
},
new[]
{
new int[] { },
new[] { 11, 19 }
});
}
public void EnumerateSubsetCombinations_ReturnsTwoCombinations_ForOneElementAndTwoSubsets()
{
TestHelper.AssertSequence(
Set.EnumerateSubsetCombinations(new[] { 10 }, 2),
new[] { new[] { 10 }, new int[] { } },
new[] { new int[] { }, new[] { 10 } });
}
public void EnumerateSubsetCombinations_DoesNotCareIfDuplicates()
{
TestHelper.AssertSequence(
Set.EnumerateSubsetCombinations(new[] { 1, 1 }, 2),
new[]
{
new[] { 1, 1 },
new int[] { }
},
new[]
{
new[] { 1 },
new[] { 1 }
},
new[]
{
new[] { 1 },
new[] { 1 }
},
new[]
{
new int[] { },
new[] { 1, 1 }
});
}
public void EnumerateSubsetCombinations_ReturnsOneCombination_ForOneElementAndOneSubset()
{
TestHelper.AssertSequence(
Set.EnumerateSubsetCombinations(new[] { 10 }, 1),
new[] { new[] { 10 } });
}
public void EnumerateSubsetCombinations_ReturnsNothing_ForEmptySequence()
{
TestHelper.AssertSequence(
Set.EnumerateSubsetCombinations(new int[] { }, 1)
);
}
public void EnumerateSubsetCombinations_ThrowsException_ForSubsetsLessThanOne()
{
Assert.Throws <ArgumentOutOfRangeException>(() =>
Set.EnumerateSubsetCombinations(new int[] { }, 0));
}
public void EnumerateSubsetCombinations_ThrowsException_ForNullSequence()
{
Assert.Throws <ArgumentNullException>(() =>
Set.EnumerateSubsetCombinations <int>(null, 1));
}