public void LessThanEqual()
{
int minValue = 1;
int value = 2;
Assert.ThrowsExact <ArgumentNullException>(() => Assert.LessThanEqual <string>(null, "z"));
Assert.ThrowsExact <ArgumentNullException>(() => Assert.LessThanEqual <string>("a", null));
Assert.ThrowsExact <AssertionException>(() => Assert.LessThanEqual(value, minValue));
Assert.DoesNotThrow(() => Assert.LessThanEqual(minValue, minValue));
Assert.DoesNotThrow(() => Assert.LessThanEqual(minValue - 5, minValue));
Assert.ThrowsExact <AssertionException>(() => Assert.LessThanEqual(minValue + 5, minValue));
}