DarabonbaUnitTests/Utils/StringUtilsTest.cs

using System;
using Darabonba.Utils;
using Xunit;

namespace DaraUnitTests.Utils
{
    public class StringUtilsTest
    {
        [Fact]
        public void TestSubString()
        {
            int? start = null;
            int? end = null;
            Assert.Throws<InvalidOperationException>(() => StringUtils.SubString("test", start, end));
            Assert.Equal("te", StringUtils.SubString("test", 0, 2));
        }

        [Fact]
        public void TestToBytes()
        {
            string data = "test";
            Assert.Equal(new byte[] { 116, 101, 115, 116 }, BytesUtils.From(data, "utf8"));
            Assert.Equal(new byte[] { 116, 101, 115, 116 }, BytesUtils.From(data, "ASCII"));
            Assert.Equal(new byte[] { 0, 116, 0, 101, 0, 115, 0, 116 }, BytesUtils.From(data, "bigendianunicode"));
            Assert.Equal(new byte[] { 116, 0, 101, 0, 115, 0, 116, 0 }, BytesUtils.From(data, "unicode"));
            Assert.Equal(new byte[] { 116, 0, 0, 0, 101, 0, 0, 0, 115, 0, 0, 0, 116, 0, 0, 0 }, BytesUtils.From(data, "utf32"));
        }

        // [Fact]
        // public void TestReplace()
        // {
        //     string pattern = "/beijing/";
        //     string replacement = "chengdu";
        //     string data = "Beijing city, hangzhou city, beijing city, another city, beijing city";
        //     string res = StringUtil.Replace(data, replacement, pattern);
        //     Assert.Equal("Beijing city, hangzhou city, chengdu city, another city, beijing city", res);
        //     pattern = "/beijing/g";
        //     res = StringUtil.Replace(data, replacement, pattern);
        //     Assert.Equal("Beijing city, hangzhou city, chengdu city, another city, chengdu city", res);
        //     pattern = "/beijing/gi";
        //     res = StringUtil.Replace(data, replacement, pattern);
        //     Assert.Equal("chengdu city, hangzhou city, chengdu city, another city, chengdu city", res);
        //     pattern = "/beijing/i";
        //     res = StringUtil.Replace(data, replacement, pattern);
        //     Assert.Equal("chengdu city, hangzhou city, beijing city, another city, beijing city", res);
        //     pattern = @"\S+(?=\s*city)";
        //     res = StringUtil.Replace(data, replacement, pattern);
        //     Assert.Equal("chengdu city, chengdu city, chengdu city, chengdu city, chengdu city", res);
        // }

        [Fact]
        public void TestParse()
        {
            string numberStr = "1.3433";
            int intRes = StringUtils.ParseInt(numberStr);
            Assert.Equal(1, intRes);
            numberStr = "2";
            intRes = StringUtils.ParseInt(numberStr);
            Assert.Equal(2, intRes);
            numberStr = "1,682.80";
            intRes = StringUtils.ParseInt(numberStr);
            Assert.Equal(1682, intRes);
            numberStr = "1.682.80";
            Assert.Throws<FormatException>(() => StringUtils.ParseInt(numberStr));
            numberStr = "3.1415926";
            float floatRes = StringUtils.ParseFloat(numberStr);
            Assert.Equal(3.1415926f, floatRes);
            numberStr = "3.1415926";
            long longRes = StringUtils.ParseLong(numberStr);
            Assert.Equal(3, longRes);
        }
        
    }
}