public void NextStringTest(
[Values(-10, 0, 10, 100)]
int count,
[Values(true, false)]
bool upperLetter,
[Values(true, false)]
bool lowerLetter,
[Values(true, false)]
bool number
)
{
const string upperPattern = "[A-Z]";
const string lowerPattern = "[a-z]";
const string numberPattern = "[0-9]";
if (count <= 0)
{
Assert.Throws <ArgumentOutOfRangeException>(() =>
{
RandomEx.NextString(count, upperLetter, lowerLetter, number);
});
return;
}
if (!upperLetter && !lowerLetter && !number)
{
Assert.Throws <InvalidOperationException>(() =>
{
RandomEx.NextString(count, upperLetter, lowerLetter, number);
});
return;
}
var actual = RandomEx.NextString(count, upperLetter, lowerLetter, number);
Assert.IsNotEmpty(actual);
if (upperLetter)
{
StringAssert.IsMatch(upperPattern, actual);
}
else
{
StringAssert.DoesNotMatch(upperPattern, actual);
}
if (lowerLetter)
{
StringAssert.IsMatch(lowerPattern, actual);
}
else
{
StringAssert.DoesNotMatch(lowerPattern, actual);
}
if (number)
{
StringAssert.IsMatch(numberPattern, actual);
}
else
{
StringAssert.DoesNotMatch(numberPattern, actual);
}
Assert.AreEqual(count, actual.Length);
}
