Remove unused helpers

y-iihoshi · Jan 1, 2025 · 583195b · 583195b
1 parent 635cb83
commit 583195b
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Showing 3 changed files with 2 additions and 29 deletions.
diff --git a/ThScoreFileConverter.Core/Helpers/EnumHelper.cs b/ThScoreFileConverter.Core/Helpers/EnumHelper.cs
@@ -47,19 +47,4 @@ public static TEnum To<TEnum>(object value)
     {
         return EnumHelper<T1>.Enumerable.Cartesian(EnumHelper<T2>.Enumerable);
     }
-
-    /// <summary>
-    /// Returns a <see cref="bool"/> telling whether a given integral value, or its name as a string, exists in a specified enumeration.
-    /// </summary>
-    /// <typeparam name="TEnum">The type of the enumeration.</typeparam>
-    /// <param name="value">The value or name of a constant in <typeparamref name="TEnum"/>.</param>
-    /// <returns>
-    /// <see langword="true"/> if a given integral value exists in a specified enumeration;
-    /// <see langword="false"/>, otherwise.
-    /// </returns>
-    public static bool IsDefined<TEnum>(TEnum value)
-        where TEnum : struct, Enum
-    {
-        return Enum.IsDefined(value);
-    }
 }
diff --git a/ThScoreFileConverter.Tests/Helpers/DateTimeHelperTests.cs b/ThScoreFileConverter.Tests/Helpers/DateTimeHelperTests.cs
@@ -7,13 +7,6 @@ namespace ThScoreFileConverter.Tests.Helpers;
 [TestClass]
 public class DateTimeHelperTests
 {
-    [TestMethod]
-    public void UnixEpochTest()
-    {
-        var expected = new DateTime(1970, 1, 1);
-        Assert.AreEqual(expected, DateTimeHelper.UnixEpoch);
-    }
-
     [TestMethod]
     public void FormatTest()
     {
@@ -26,7 +19,7 @@ public void FormatTest()
     [DataRow(1234567)]
     public void GetStringTest(int unixTime)
     {
-        var expected = DateTimeHelper.UnixEpoch.AddSeconds(unixTime).ToLocalTime()
+        var expected = DateTime.UnixEpoch.AddSeconds(unixTime).ToLocalTime()
             .ToString(DateTimeHelper.ValidFormat, CultureInfo.CurrentCulture);
         Assert.AreEqual(expected, DateTimeHelper.GetString(unixTime));
     }

diff --git a/ThScoreFileConverter/Helpers/DateTimeHelper.cs b/ThScoreFileConverter/Helpers/DateTimeHelper.cs
@@ -15,11 +15,6 @@ namespace ThScoreFileConverter.Helpers;
 /// </summary>
 public static class DateTimeHelper
 {
-    /// <summary>
-    /// Gets the point in time when Unix time is equal to 0 (i.e. 1970-01-01T00:00:00Z).
-    /// </summary>
-    public static DateTime UnixEpoch { get; } = DateTime.UnixEpoch;
-
     /// <summary>
     /// Gets the date and time format string used by <see cref="GetString(double?)"/>.
     /// </summary>
@@ -41,7 +36,7 @@ public static class DateTimeHelper
     public static string GetString(double? unixTime)
     {
         return unixTime.HasValue
-            ? UnixEpoch.AddSeconds(unixTime.Value).ToLocalTime().ToString(ValidFormat, CultureInfo.CurrentCulture)
+            ? DateTime.UnixEpoch.AddSeconds(unixTime.Value).ToLocalTime().ToString(ValidFormat, CultureInfo.CurrentCulture)
             : InvalidFormat;
     }
 }