public void to_decimal()
{
Assert.Throws <ArgumentNullException>(() => StringExtensions.ToDecimal(null));
Assert.Throws <ArgumentException>(() => string.Empty.ToDecimal());
const string Invalid = "invalid";
Assert.Equal(decimal.MaxValue, decimal.MaxValue.ToString(CultureInfo.InvariantCulture).ToDecimal());
Assert.Throws <FormatException>(() => Invalid.ToDecimal());
decimal result;
Assert.True(decimal.MaxValue.ToString(CultureInfo.InvariantCulture).ToDecimal(out result));
Assert.Equal(decimal.MaxValue, result);
Assert.False(Invalid.ToDecimal(out result));
Assert.Equal(default(decimal), result);
}
