Commit b2ea701e authored by shrabbit's avatar shrabbit
Browse files

新增测试（未通过），后续优化。

parent 588d4ce0

src/VideoSlice.Cli/SimpleTimeSpanExpress.cs

+42 −12
Original line number Diff line number Diff line 
namespace VideoSlice.Cli;

using System.Text;



namespace VideoSlice.Cli;



public static class SimpleTimeSpanExpress

{
@@ -9,16 +11,25 @@ public static class SimpleTimeSpanExpress 
    /// <returns>时间表达式</returns>

    public static string ToString(TimeSpan timeSpan)

    {

        var result = string.Empty;

        var len =

            GetStringLengthFast(timeSpan.Days) + 1

            + GetStringLengthFast(timeSpan.Hours) + 1

            + GetStringLengthFast(timeSpan.Minutes) + 1

            + GetStringLengthFast(timeSpan.Seconds) + 1

            + GetStringLengthFast(timeSpan.Milliseconds) + 2

            + GetStringLengthFast(timeSpan.Microseconds) + 2

            + 4;

        

        var sb = new StringBuilder(len);



        result += Append(timeSpan.Days, "d");

        result += Append(timeSpan.Hours, "h");

        result += Append(timeSpan.Minutes, "m");

        result += Append(timeSpan.Seconds, "s");

        result += Append(timeSpan.Milliseconds, "ms");

        result += Append(timeSpan.Microseconds, "us");

        Append(timeSpan.Days, "d", sb);

        Append(timeSpan.Hours, "h", sb);

        Append(timeSpan.Minutes, "m", sb);

        Append(timeSpan.Seconds, "s", sb);

        Append(timeSpan.Milliseconds, "ms", sb);

        Append(timeSpan.Microseconds, "us", sb);

        

        return result;

        return sb.ToString();

    }



    /// <summary>
@@ -40,9 +51,9 @@ public static class SimpleTimeSpanExpress 
        return timespan;

    }



    private static string Append(int value, string unit)

    private static void Append(int value, string unit, StringBuilder sb)

    {

        return value > 0 ? $"{value}{unit}" : string.Empty;

        sb.Append($"{value}{unit}");

    }



    public static int Parse(string s, string unit)
@@ -80,4 +91,23 @@ public static class SimpleTimeSpanExpress 
        

        return new string(arr, arr.Length - count, count);

    }



    private static int GetStringLengthFast(int value)

    {

        long v = value < 0 ? -(long)value : value;



        return v switch

        {

            < 10 => value < 0 ? 2 : 1,

            < 100 => value < 0 ? 3 : 2,

            < 1000 => value < 0 ? 4 : 3,

            < 10000 => value < 0 ? 5 : 4,

            < 100000 => value < 0 ? 6 : 5,

            < 1000000 => value < 0 ? 7 : 6,

            < 10000000 => value < 0 ? 8 : 7,

            < 100000000 => value < 0 ? 9 : 8,

            < 1000000000 => value < 0 ? 10 : 9,

            _ => value < 0 ? 11 : 10

        };

    }

}
 
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src/VideoSlice.Tests/SimpleTimeSpanExpressTest.cs

+14 −0
Original line number Diff line number Diff line
@@ -23,4 +23,18 @@ public class SimpleTimeSpanExpressTest 
        var time = "1d2h3m4s5ms6us";

        Assert.Equal(new TimeSpan(1, 2, 3, 4, 5, 6), SimpleTimeSpanExpress.ToTimeSpan(time));

    }



    [Fact]

    public void Should_ToString_Not_Full()

    {

        var time = new TimeSpan(1, 2, 0, 4, 0, 0);

        Assert.Equal("1d2h0m4s", SimpleTimeSpanExpress.ToString(time));

    }



    [Fact]

    public void Should_ToTimeSpan_Not_Full()

    {

        var time = "1d2h0m4s";

        Assert.Equal(new TimeSpan(1, 2, 0, 4, 0, 0), SimpleTimeSpanExpress.ToTimeSpan(time));

    }

}
 
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