public void EncodeBase64Url()
{
StringOperators.EncodeUrlBase64(null).Should().BeNull();
StringOperators.EncodeUrlBase64("").Should().Be("");
// StringOperators.EncodeUrlBase64("Ewout").Should().Be("RXdvdXQ");
StringOperators.EncodeUrlBase64("Ewout").Should().Be("RXdvdXQ=");
StringOperators.EncodeUrlBase64("Ewout>").Should().Be("RXdvdXQ-");
StringOperators.EncodeUrlBase64("编码方式").Should().Be("57yW56CB5pa55byP");
StringOperators.FpEncode("Ewout", "urlbase64").Should().Be("RXdvdXQ=");
//StringOperators.FpEncode("Ewout", "urlbase64").Should().Be("RXdvdXQ");
}