Added Level as prefix for loggers.

src/Microsoft.TestPlatform.CoreUtilities/Friends.cs

@@ -5,3 +5,4 @@
 
 [assembly: InternalsVisibleTo("vstest.console, PublicKey=002400000480000094000000060200000024000052534131000400000100010007d1fa57c4aed9f0a32e84aa0faefd0de9e8fd6aec8f87fb03766c834c99921eb23be79ad9d5dcc1dd9ad236132102900b723cf980957fc4e177108fc607774f29e8320e92ea05ece4e821c0a5efe8f1645c4c0c93c1ab99285d622caa652c1dfad63d745d6f2de5f17e5eaf0fc4963d261c8a12436518206dc093344d5ad293")]
 [assembly: InternalsVisibleTo("vstest.console.UnitTests, PublicKey=002400000480000094000000060200000024000052534131000400000100010007d1fa57c4aed9f0a32e84aa0faefd0de9e8fd6aec8f87fb03766c834c99921eb23be79ad9d5dcc1dd9ad236132102900b723cf980957fc4e177108fc607774f29e8320e92ea05ece4e821c0a5efe8f1645c4c0c93c1ab99285d622caa652c1dfad63d745d6f2de5f17e5eaf0fc4963d261c8a12436518206dc093344d5ad293")]
+[assembly: InternalsVisibleTo("Microsoft.TestPlatform.CoreUtilities.UnitTests, PublicKey=002400000480000094000000060200000024000052534131000400000100010007d1fa57c4aed9f0a32e84aa0faefd0de9e8fd6aec8f87fb03766c834c99921eb23be79ad9d5dcc1dd9ad236132102900b723cf980957fc4e177108fc607774f29e8320e92ea05ece4e821c0a5efe8f1645c4c0c93c1ab99285d622caa652c1dfad63d745d6f2de5f17e5eaf0fc4963d261c8a12436518206dc093344d5ad293")]

src/Microsoft.TestPlatform.CoreUtilities/Output/OutputExtensions.cs

@@ -14,6 +14,13 @@ namespace Microsoft.VisualStudio.TestPlatform.Utilities
     /// </summary>
     public static class OutputExtensions
     {
+        /// <summary>
+        /// Bool to decide whether Verbose level should be added as prefix or not in log messages.
+        /// </summary>
+        internal static bool AppendPrefix;
+
+        private const string DefaultFormat = "{0}";
+
         /// <summary>
         /// Output an error message.
         /// </summary>
@@ -24,7 +31,7 @@ public static void Error(this IOutput output, string format, params object[] arg
         {
             SetColorForAction(ConsoleColor.Red, () =>
             {
-                Output(output, OutputLevel.Error, Resources.CommandLineError, format, args);
+                Output(output, OutputLevel.Error, AppendPrefix ? Resources.CommandLineError : DefaultFormat, format, args);
             });
         }
 
@@ -38,7 +45,7 @@ public static void Warning(this IOutput output, string format, params object[] a
         {
             SetColorForAction(ConsoleColor.Yellow, () =>
             {
-                Output(output, OutputLevel.Warning, Resources.CommandLineWarning, format, args);
+                Output(output, OutputLevel.Warning, AppendPrefix ? Resources.CommandLineWarning : DefaultFormat, format, args);
             });
         }
 
@@ -50,7 +57,7 @@ public static void Warning(this IOutput output, string format, params object[] a
         /// <param name="args">Arguments to format into the format string.</param>
         public static void Information(this IOutput output, string format, params object[] args)
         {
-           Information(output, Console.ForegroundColor, format, args);
+            Information(output, Console.ForegroundColor, format, args);
         }
 
         /// <summary>
@@ -64,7 +71,7 @@ public static void Information(this IOutput output, ConsoleColor foregroundColor
         {
             SetColorForAction(foregroundColor, () =>
             {
-                Output(output, OutputLevel.Information, Resources.CommandLineInformational, format, args);
+                Output(output, OutputLevel.Information, AppendPrefix ? Resources.CommandLineInformational : DefaultFormat, format, args);
             });
         }
 

src/vstest.console/Internal/ConsoleLogger.cs

@@ -45,6 +45,11 @@ internal class ConsoleLogger : ITestLoggerWithParameters
         /// </summary>
         public const string VerbosityParam = "verbosity";
 
+        /// <summary>
+        /// Parameter for log message prefix
+        /// </summary>
+        public const string PrefixParam = "prefix";
+
         #endregion
 
         internal enum Verbosity
@@ -66,7 +71,6 @@ internal enum Verbosity
         private int testsPassed = 0;
         private int testsFailed = 0;
         private int testsSkipped = 0;
-
         #endregion
 
         #region Constructor
@@ -89,7 +93,8 @@ internal ConsoleLogger(IOutput output)
 
         #endregion
 
-        #region Properties
+        #region Properties        
+
         /// <summary>
         /// Gets instance of IOutput used for sending output.
         /// </summary>
@@ -150,6 +155,12 @@ public void Initialize(TestLoggerEvents events, Dictionary<string, string> param
                 this.verbosityLevel = verbosityLevel;
             }
 
+            var prefixExists = parameters.TryGetValue(ConsoleLogger.PrefixParam, out string prefix);
+            if (prefixExists)
+            {
+                bool.TryParse(prefix, out OutputExtensions.AppendPrefix);
+            }
+
             this.Initialize(events, String.Empty);
         }
         #endregion
@@ -416,11 +427,11 @@ private void TestRunCompleteHandler(object sender, TestRunCompleteEventArgs e)
                 {
                     Output.Error(CommandLineResources.TestRunCanceled);
                 }
-                else if(e.IsAborted)
+                else if (e.IsAborted)
                 {
                     Output.Error(CommandLineResources.TestRunAborted);
                 }
-                else if(this.testOutcome == TestOutcome.Failed)
+                else if (this.testOutcome == TestOutcome.Failed)
                 {
                     Output.Error(CommandLineResources.TestRunFailed);
                 }

test/Microsoft.TestPlatform.CoreUtilities.UnitTests/Output/OutputExtensionsTests.cs

@@ -3,12 +3,10 @@
 
 namespace Microsoft.TestPlatform.CoreUtilities.UnitTests.Output
 {
-    using System;
-
-    using Microsoft.VisualStudio.TestPlatform.Utilities;
     using Microsoft.VisualStudio.TestTools.UnitTesting;
-
+    using Microsoft.VisualStudio.TestPlatform.Utilities;
     using Moq;
+    using System;
 
     [TestClass]
     public class OutputExtensionsTests
@@ -47,8 +45,18 @@ public void CleanUp()
         [TestMethod]
         public void OutputErrorForSimpleMessageShouldOutputTheMessageString()
         {
+            this.mockOutput.Object.Error("HelloError", null);
+            this.mockOutput.Verify(o => o.WriteLine("HelloError", OutputLevel.Error), Times.Once());
+        }
+
+        [TestMethod]
+        public void OutputErrorForSimpleMessageShouldOutputTheMessageStringWithPrefixIfSet()
+        {
+            OutputExtensions.AppendPrefix = true;
             this.mockOutput.Object.Error("HelloError", null);
             this.mockOutput.Verify(o => o.WriteLine("Error: HelloError", OutputLevel.Error), Times.Once());
+
+            OutputExtensions.AppendPrefix = false;
         }
 
         [TestMethod]
@@ -67,14 +75,14 @@ public void OutputErrorForSimpleMessageShouldSetConsoleColorToRed()
         public void OutputErrorForMessageWithParamsShouldOutputFormattedMessage()
         {
             this.mockOutput.Object.Error("HelloError {0} {1}", "Foo", "Bar");
-            this.mockOutput.Verify(o => o.WriteLine("Error: HelloError Foo Bar", OutputLevel.Error), Times.Once());
+            this.mockOutput.Verify(o => o.WriteLine("HelloError Foo Bar", OutputLevel.Error), Times.Once());
         }
 
         [TestMethod]
         public void OutputWarningForSimpleMessageShouldOutputTheMessageString()
         {
             this.mockOutput.Object.Warning("HelloWarning", null);
-            this.mockOutput.Verify(o => o.WriteLine("Warning: HelloWarning", OutputLevel.Warning), Times.Once());
+            this.mockOutput.Verify(o => o.WriteLine("HelloWarning", OutputLevel.Warning), Times.Once());
         }
 
         [TestMethod]
@@ -93,14 +101,14 @@ public void OutputWarningForSimpleMessageShouldSetConsoleColorToYellow()
         public void OutputWarningForMessageWithParamsShouldOutputFormattedMessage()
         {
             this.mockOutput.Object.Warning("HelloWarning {0} {1}", "Foo", "Bar");
-            this.mockOutput.Verify(o => o.WriteLine("Warning: HelloWarning Foo Bar", OutputLevel.Warning), Times.Once());
+            this.mockOutput.Verify(o => o.WriteLine("HelloWarning Foo Bar", OutputLevel.Warning), Times.Once());
         }
 
         [TestMethod]
         public void OutputInformationForSimpleMessageShouldOutputTheMessageString()
         {
             this.mockOutput.Object.Information(ConsoleColor.Green, "HelloInformation", null);
-            this.mockOutput.Verify(o => o.WriteLine("Information: HelloInformation", OutputLevel.Information), Times.Once());
+            this.mockOutput.Verify(o => o.WriteLine("HelloInformation", OutputLevel.Information), Times.Once());
         }
 
         [TestMethod]
@@ -119,7 +127,7 @@ public void OutputInformationForSimpleMessageShouldSetConsoleColorToGivenColor()
         public void OutputInformationForMessageWithParamsShouldOutputFormattedMessage()
         {
             this.mockOutput.Object.Information("HelloInformation {0} {1}", "Foo", "Bar");
-            this.mockOutput.Verify(o => o.WriteLine("Information: HelloInformation Foo Bar", OutputLevel.Information), Times.Once());
+            this.mockOutput.Verify(o => o.WriteLine("HelloInformation Foo Bar", OutputLevel.Information), Times.Once());
         }
 
         [TestMethod]
@@ -137,7 +145,7 @@ public void OutputInformationShouldNotChangeConsoleOutputColor()
             });
 
             this.mockOutput.Object.Information("HelloInformation {0} {1}", "Foo", "Bar");
-            this.mockOutput.Verify(o => o.WriteLine("Information: HelloInformation Foo Bar", OutputLevel.Information), Times.Once());
+            this.mockOutput.Verify(o => o.WriteLine("HelloInformation Foo Bar", OutputLevel.Information), Times.Once());
             Assert.IsTrue(color1 == color2);
         }