Fix some dodgy string formatting benchmarks

ite-klass · Jun 4, 2017 · 4b0e2be · 4b0e2be
1 parent 9b99d7e
commit 4b0e2be
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Showing 3 changed files with 162 additions and 16 deletions.
diff --git a/test/Serilog.PerformanceTests/MessageTemplateRenderingBenchmark.cs b/test/Serilog.PerformanceTests/MessageTemplateRenderingBenchmark.cs
@@ -17,14 +17,7 @@ public class MessageTemplateRenderingBenchmark
             Some.InformationEvent("Processed {@Position} for {Task} in {Elapsed:000} ms",
                 new { Latitude = 25, Longitude = 134 }, "Benchmark", 34);
 
-        readonly StringWriter _output = new StringWriter();
-
-        [Setup]
-        public void Setup()
-        {
-            _output.GetStringBuilder().Length = 0;
-            _output.GetStringBuilder().Capacity = 1024; // Only a few dozen chars actually needed here.
-        }
+        readonly TextWriter _output = new NullTextWriter();
 
         [Benchmark]
         public void TemplateWithNoProperties()

diff --git a/test/Serilog.PerformanceTests/OutputTemplateRenderingBenchmark.cs b/test/Serilog.PerformanceTests/OutputTemplateRenderingBenchmark.cs
@@ -17,14 +17,7 @@ public class OutputTemplateRenderingBenchmark
         static readonly LogEvent HelloWorldEvent = Some.InformationEvent("Hello, {Name}", "World");
         static readonly MessageTemplateTextFormatter Formatter = new MessageTemplateTextFormatter(DefaultFileOutputTemplate, CultureInfo.InvariantCulture);
 
-        readonly StringWriter _output = new StringWriter();
-
-        [Setup]
-        public void Setup()
-        {
-            _output.GetStringBuilder().Length = 0;
-            _output.GetStringBuilder().Capacity = 1024; // Only a few dozen chars actually needed here.
-        }
+        readonly TextWriter _output = new NullTextWriter();
 
         [Benchmark]
         public void FormatToOutput()

diff --git a/test/Serilog.PerformanceTests/Support/NullTextWriter.cs b/test/Serilog.PerformanceTests/Support/NullTextWriter.cs
@@ -0,0 +1,160 @@
+using System;
+using System.IO;
+using System.Text;
+
+namespace Serilog.PerformanceTests.Support
+{
+    class NullTextWriter : TextWriter
+    {
+        public override void Write(char value)
+        {
+        }
+
+        public override Encoding Encoding { get; } = new UTF8Encoding(encoderShouldEmitUTF8Identifier: false);
+
+        public override void Write(bool value)
+        {
+        }
+
+        public override void Write(char[] buffer)
+        {
+        }
+
+        public override void Write(char[] buffer, int index, int count)
+        {
+        }
+
+        public override void Write(decimal value)
+        {
+        }
+
+        public override void Write(double value)
+        {
+        }
+
+        public override void Write(int value)
+        {
+        }
+
+        public override void Write(long value)
+        {
+        }
+
+        public override void Write(object value)
+        {
+        }
+
+        public override void Write(float value)
+        {
+        }
+
+        public override void Write(string value)
+        {
+        }
+
+        public override void Write(string format, object arg0)
+        {
+        }
+
+        public override void Write(string format, object arg0, object arg1)
+        {
+        }
+
+        public override void Write(string format, object arg0, object arg1, object arg2)
+        {
+        }
+
+        public override void Write(string format, params object[] arg)
+        {
+        }
+
+        public override void Write(uint value)
+        {
+        }
+
+        public override void Write(ulong value)
+        {
+        }
+
+        public override string ToString()
+        {
+            return String.Empty;
+        }
+
+        public override void Flush()
+        {
+        }
+
+        public override void WriteLine()
+        {
+        }
+
+        public override void WriteLine(bool value)
+        {
+        }
+
+        public override void WriteLine(char value)
+        {
+        }
+
+        public override void WriteLine(char[] buffer)
+        {
+        }
+
+        public override void WriteLine(char[] buffer, int index, int count)
+        {
+        }
+
+        public override void WriteLine(decimal value)
+        {
+        }
+
+        public override void WriteLine(double value)
+        {
+        }
+
+        public override void WriteLine(int value)
+        {
+        }
+
+        public override void WriteLine(long value)
+        {
+        }
+
+        public override void WriteLine(object value)
+        {
+        }
+
+        public override void WriteLine(float value)
+        {
+        }
+
+        public override void WriteLine(string value)
+        {
+        }
+
+        public override void WriteLine(string format, object arg0)
+        {
+        }
+
+        public override void WriteLine(string format, object arg0, object arg1)
+        {
+        }
+
+        public override void WriteLine(string format, object arg0, object arg1, object arg2)
+        {
+        }
+
+        public override void WriteLine(string format, params object[] arg)
+        {
+        }
+
+        public override void WriteLine(uint value)
+        {
+        }
+
+        public override void WriteLine(ulong value)
+        {
+        }
+    }
+}