Add support for ppc64le processor architecture

src/Microsoft.TestPlatform.ObjectModel/Architecture.cs

@@ -11,5 +11,6 @@ public enum Architecture
     ARM,
     AnyCPU,
     ARM64,
-    S390x
+    S390x,
+    PPC64le
 }

src/Microsoft.TestPlatform.PlatformAbstractions/Interfaces/System/PlatformArchitecture.cs

@@ -13,4 +13,5 @@ public enum PlatformArchitecture
     ARM,
     ARM64,
     S390x,
+    PPC64le,
 }

src/Microsoft.TestPlatform.PlatformAbstractions/netcore/System/PlatformEnvironment.cs

@@ -28,6 +28,7 @@ public PlatformArchitecture Architecture
                 // preview 6 or later, so use the numerical value for now.
                 // case System.Runtime.InteropServices.Architecture.S390x:
                 (Architecture)5 => PlatformArchitecture.S390x,
+                (Architecture)6 => PlatformArchitecture.PPC64le,
                 _ => throw new NotSupportedException(),
             };
         }

src/Microsoft.TestPlatform.PlatformAbstractions/netcore/System/ProcessHelper.cs

@@ -41,6 +41,7 @@ public PlatformArchitecture GetCurrentProcessArchitecture()
             // preview 6 or later, so use the numerical value for now.
             // case System.Runtime.InteropServices.Architecture.S390x:
             (Architecture)5 => PlatformArchitecture.S390x,
+            (Architecture)6 => PlatformArchitecture.PPC64le,
             _ => throw new NotSupportedException(),
         };
     }

src/Microsoft.TestPlatform.TestHostProvider/Hosting/DefaultTestHostManager.cs

@@ -274,6 +274,7 @@ private static string GetTestHostName(Architecture architecture, Framework targe
             PlatformArchitecture.ARM => Architecture.ARM,
             PlatformArchitecture.ARM64 => Architecture.ARM64,
             PlatformArchitecture.S390x => Architecture.S390x,
+            PlatformArchitecture.PPC64le => Architecture.PPC64le,
             _ => throw new NotSupportedException(),
         };
 

src/vstest.console/TestPlatformHelpers/TestRequestManager.cs

@@ -841,6 +841,8 @@ static Architecture TranslateToArchitecture(PlatformArchitecture targetArchitect
                     return Architecture.ARM64;
                 case PlatformArchitecture.S390x:
                     return Architecture.S390x;
+                case PlatformArchitecture.PPC64le:
+                    return Architecture.PPC64le;
                 default:
                     EqtTrace.Error($"TestRequestManager.TranslateToArchitecture: Unhandled architecture '{targetArchitecture}'.");
                     break;

test/vstest.console.UnitTests/Processors/PlatformArgumentProcessorTests.cs

@@ -85,7 +85,7 @@ public void InitializeShouldThrowIfArgumentIsNotAnArchitecture()
     {
         ExceptionUtilities.ThrowsException<CommandLineException>(
             () => _executor.Initialize("foo"),
-            "Invalid platform type: {0}. Valid platform types are X86, X64, ARM, ARM64, S390x.",
+            "Invalid platform type: {0}. Valid platform types are X86, X64, ARM, ARM64, S390x, PPC64le.",
             "foo");
     }
 
@@ -94,7 +94,7 @@ public void InitializeShouldThrowIfArgumentIsNotASupportedArchitecture()
     {
         ExceptionUtilities.ThrowsException<CommandLineException>(
             () => _executor.Initialize("AnyCPU"),
-            "Invalid platform type: {0}. Valid platform types are X86, X64, ARM, ARM64, S390x.",
+            "Invalid platform type: {0}. Valid platform types are X86, X64, ARM, ARM64, S390x, PPC64le.",
             "AnyCPU");
     }