added tests with timestamps to TemplateEvaluationTests

Author: epeshk

test/Serilog.Expressions.Tests/Cases/template-evaluation-cases.asv

@@ -33,3 +33,5 @@ Culture-specific {42.34}                             ⇶ Culture-specific 42,34
 {rest()}                                             ⇶ {"Name":"nblumhardt"}
 {Name} {rest()}                                      ⇶ nblumhardt {}
 {rest(true)}                                         ⇶ {}
+{@t:yyyy-MM-dd HH:mm:ss.ffff zzz}                    ⇶ 2000-12-31 23:59:58.1230 +10:00
+{@t:yyyy-MM-dd HH:mm:ss.ffff zzz------------------}  ⇶ 2000-12-31 23:59:58.1230 +10:00------------------

test/Serilog.Expressions.Tests/Support/Some.cs

@@ -12,12 +12,22 @@ public static LogEvent InformationEvent(string messageTemplate = "Hello, world!"
         return LogEvent(LogEventLevel.Information, messageTemplate, propertyValues);
     }
 
+    public static LogEvent InformationEvent(DateTimeOffset timestamp, string messageTemplate = "Hello, world!", params object?[] propertyValues)
+    {
+        return LogEvent(timestamp, LogEventLevel.Information, messageTemplate, propertyValues);
+    }
+
     public static LogEvent WarningEvent(string messageTemplate = "Hello, world!", params object?[] propertyValues)
     {
         return LogEvent(LogEventLevel.Warning, messageTemplate, propertyValues);
     }
 
     public static LogEvent LogEvent(LogEventLevel level, string messageTemplate = "Hello, world!", params object?[] propertyValues)
+    {
+        return LogEvent(DateTimeOffset.Now, level, messageTemplate, propertyValues);
+    }
+
+    public static LogEvent LogEvent(DateTimeOffset timestamp, LogEventLevel level, string messageTemplate = "Hello, world!", params object?[] propertyValues)
     {
         var log = new LoggerConfiguration().CreateLogger();
 #pragma warning disable Serilog004 // Constant MessageTemplate verifier
@@ -26,7 +36,7 @@ public static LogEvent LogEvent(LogEventLevel level, string messageTemplate = "H
         {
             throw new XunitException("Template could not be bound.");
         }
-        return new(DateTimeOffset.Now, level, null, template, properties);
+        return new(timestamp, level, null, template, properties);
     }
 
     public static object AnonymousObject()

test/Serilog.Expressions.Tests/TemplateEvaluationTests.cs

@@ -1,4 +1,5 @@
 using System.Globalization;
+using Serilog.Events;
 using Serilog.Expressions.Tests.Support;
 using Serilog.Templates;
 using Xunit;
@@ -7,14 +8,17 @@ namespace Serilog.Expressions.Tests;
 
 public class TemplateEvaluationTests
 {
+    static readonly DateTimeOffset TestTimestamp = new(
+        2000, 12, 31, 23, 59, 58, 123, TimeSpan.FromHours(10));
+
     public static IEnumerable<object[]> TemplateEvaluationCases =>
         AsvCases.ReadCases("template-evaluation-cases.asv");
 
     [Theory]
     [MemberData(nameof(TemplateEvaluationCases))]
     public void TemplatesAreCorrectlyEvaluated(string template, string expected)
     {
-        var evt = Some.InformationEvent("Hello, {Name}!", "nblumhardt");
+        var evt = Some.InformationEvent(TestTimestamp, "Hello, {Name}!", "nblumhardt");
         var frFr = CultureInfo.GetCultureInfoByIetfLanguageTag("fr-FR");
         var compiled = new ExpressionTemplate(template, formatProvider: frFr);
         var output = new StringWriter();