public void ValidNumberTest()
{
ValidNumber l = new ValidNumber();
Assert.IsTrue(l.IsNumber(" 0.1 "));
Assert.IsTrue(l.IsNumber("0"));
Assert.IsTrue(l.IsNumber("-124"));
Assert.IsTrue(l.IsNumber("12."));
Assert.IsTrue(l.IsNumber("2e0"));
Assert.IsTrue(l.IsNumber("46.e3"));
Assert.IsTrue(l.IsNumber("32.e-80123"));
Assert.IsFalse(l.IsNumber("459277e38+"));
Assert.IsFalse(l.IsNumber("-124.23.23"));
Assert.IsFalse(l.IsNumber("-"));
Assert.IsFalse(l.IsNumber("."));
Assert.IsFalse(l.IsNumber("12 12"));
Assert.IsFalse(l.IsNumber("++2"));
Assert.IsFalse(l.IsNumber(""));
Assert.IsFalse(l.IsNumber(".-4"));
Assert.IsFalse(l.IsNumber("abc"));
Assert.IsFalse(l.IsNumber("1 a"));
Assert.IsFalse(l.IsNumber("0efd"));
}
