116 lines
2.2 KiB
C#
116 lines
2.2 KiB
C#
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using System;
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using System.Collections.Generic;
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using System.Linq;
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class OrderByTests
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{
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class Data
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{
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public int ID { get; set; }
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public string Name { get; set; }
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public override string ToString ()
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{
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return ID + " " + Name;
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}
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}
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public static int Main ()
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{
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int[] int_array = new int [] { 0, 1 };
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string[] string_array = new string[] { "f", "a", "z", "aa" };
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IEnumerable<int> e;
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e = from int i in int_array orderby i select i;
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List<int> l = new List<int> (e);
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if (l [0] != 0)
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return 1;
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if (l [1] != 1)
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return 2;
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e = from int i in int_array orderby i ascending select i;
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l = new List<int> (e);
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if (l [0] != 0)
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return 100;
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if (l [1] != 1)
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return 101;
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e = from i in int_array orderby i descending select i + 1;
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l = new List<int> (e);
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if (l [0] != 2)
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return 3;
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if (l [1] != 1)
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return 4;
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IEnumerable<string> s;
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s = from i in string_array orderby i select i;
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List<string> ls = new List<string> (s);
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if (ls [0] != "a")
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return 5;
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if (ls [1] != "aa")
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return 6;
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if (ls [2] != "f")
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return 7;
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if (ls [3] != "z")
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return 7;
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s = from i in string_array orderby i.Length select i;
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// Multiple orderby
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Data[] data = new Data[] {
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new Data { ID = 10, Name = "bcd" },
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new Data { ID = 20, Name = "Abcd" },
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new Data { ID = 20, Name = "Ab" },
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new Data { ID = 10, Name = "Zyx" }
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};
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var de = from i in data orderby i.ID ascending, i.Name descending select i;
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List<Data> ld = new List<Data> (de);
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if (ld [0].Name != "Zyx")
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return 10;
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var de2 = from i in data orderby i.ID descending, i.Name ascending select i;
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ld = new List<Data> (de2);
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if (ld [0].Name != "Ab")
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return 11;
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var de3 = from i in data
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where i.ID == 10
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orderby i.ID descending, i.Name ascending select i;
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ld = new List<Data> (de3);
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if (ld [0].Name != "bcd")
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return 12;
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var de4 = from i in data
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where i.ID == 20
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orderby i.Name group i by i.Name;
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var group_order = new List<IGrouping<string, Data>> (de4);
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ld = new List<Data>(group_order [0]);
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if (ld [0].Name != "Ab")
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return 13;
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ld = new List<Data>(group_order [1]);
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if (ld [0].Name != "Abcd")
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return 14;
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Console.WriteLine ("OK");
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return 0;
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}
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}
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