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   1 // Licensed to the .NET Foundation under one or more agreements.
   2 // The .NET Foundation licenses this file to you under the MIT license.
   3 // See the LICENSE file in the project root for more information.
   4
   5 using System.Collections.Generic;
   6 using Xunit;
   7
   8 namespace System.Globalization.Tests
   9 {
  10     public class DateTimeFormatInfoGetAbbreviatedDayName
  11     {
  12         public static IEnumerable<object[]> GetAbbreviatedDayName_TestData()
  13         {
  14             string[] englishAbbreviatedDayNames = new string[] { "Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat" };
  15             yield return new object[] { DateTimeFormatInfo.InvariantInfo, englishAbbreviatedDayNames };
  16             yield return new object[] { new CultureInfo("en-US").DateTimeFormat, englishAbbreviatedDayNames };
  17             yield return new object[] { new DateTimeFormatInfo(), englishAbbreviatedDayNames };
  18
  19             if (!PlatformDetection.IsUbuntu || PlatformDetection.IsUbuntu1404)
  20             {
  21                 yield return new object[] { new CultureInfo("fr-FR").DateTimeFormat, DateTimeFormatInfoData.FrFRAbbreviatedDayNames() };
  22             }
  23         }
  24
  25         [Theory]
  26         [MemberData(nameof(GetAbbreviatedDayName_TestData))]
  27         public void GetAbbreviatedDayName(DateTimeFormatInfo info, string[] expected)
  28         {
  29             DayOfWeek[] values = new DayOfWeek[]
  30             {
  31                 DayOfWeek.Sunday,
  32                 DayOfWeek.Monday,
  33                 DayOfWeek.Tuesday,
  34                 DayOfWeek.Wednesday,
  35                 DayOfWeek.Thursday,
  36                 DayOfWeek.Friday,
  37                 DayOfWeek.Saturday
  38             };
  39
  40             for (int i = 0; i < values.Length; ++i)
  41             {
  42                 Assert.Equal(expected[i], info.GetAbbreviatedDayName(values[i]));
  43             }
  44         }
  45
  46         [Theory]
  47         [InlineData(DayOfWeek.Sunday - 1)]
  48         [InlineData(DayOfWeek.Saturday + 1)]
  49         public void GetAbbreviatedDayName_Invalid_ThrowsArgumentOutOfRangeException(DayOfWeek dayofweek)
  50         {
  51             AssertExtensions.Throws<ArgumentOutOfRangeException>("dayofweek", () => new DateTimeFormatInfo().GetAbbreviatedDayName(dayofweek));
  52         }
  53     }
  54 }