public void FilterFormatted_ForFilterWithNonNullChars_WhenCalledWithNullSource_ReturnsNull(
[CombinatorialValues("", "a", "aaA%@2-")] string chars,
[CombinatorialValues(-1, 0, 1, 3)] int start,
[CombinatorialValues(-1, 0, 1, 3)] int end,
[CombinatorialValues(null, "", "a", "abc")] string?destStr,
[CombinatorialValues(-1, 0, 1, 3)] int dstart,
[CombinatorialValues(-1, 0, 1, 3)] int dend)
{
var dest = destStr == null ? null : new SpannableString(destStr);
var filter = new ForbiddenCharsInputFilter(chars.ToCharArray());
var result = filter.FilterFormatted(null, start, end, dest, dstart, dend);
Assert.Null(result);
}
public void FilterFormatted_ForFilterWithNonEmptyChars_WhenCalledWithNonNullSource_IfSourceContainForbiddenChars_ReturnsEmptyString(
[CombinatorialValues("a", "aaabc", "%klp", "jd2ye")] string sourceStr,
[CombinatorialValues(-1, 0, 1, 3)] int start,
[CombinatorialValues(-1, 0, 1, 3)] int end,
[CombinatorialValues(null, "", "a", "abc")] string?destStr,
[CombinatorialValues(-1, 0, 1, 3)] int dstart,
[CombinatorialValues(-1, 0, 1, 3)] int dend)
{
var source = new String(sourceStr);
var dest = destStr == null ? null : new SpannableString(destStr);
var filter = new ForbiddenCharsInputFilter("aaAA%@2@-".ToCharArray());
var result = filter.FilterFormatted(source, start, end, dest, dstart, dend);
Assert.Empty(result);
}