[CI] Revert to running .NET Standard Engine Tests via NUnitLite

.travis.yml

@@ -12,6 +12,7 @@ matrix:
         - sudo dpkg -i packages-microsoft-prod.deb
         - sudo apt-get install apt-transport-https
         - sudo apt-get update
+        - sudo apt-get install dotnet-sharedframework-microsoft.netcore.app-1.1.2
         - sudo apt-get install dotnet-sdk-2.2
 
 # macOS package restore currently taking >30 mins on Travis

NUnitConsole.sln

@@ -1,7 +1,7 @@
 
 Microsoft Visual Studio Solution File, Format Version 12.00
-# Visual Studio 15
-VisualStudioVersion = 15.0.27004.2002
+# Visual Studio Version 16
+VisualStudioVersion = 16.0.29728.190
 MinimumVisualStudioVersion = 10.0.40219.1
 Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Solution Items", "Solution Items", "{49D441DF-39FD-4F4D-AECA-86CF8EFE23AF}"
 	ProjectSection(SolutionItems) = preProject
@@ -10,6 +10,7 @@ Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Solution Items", "Solution
 		.gitignore = .gitignore
 		.travis.yml = .travis.yml
 		appveyor.yml = appveyor.yml
+		azure-pipelines.yml = azure-pipelines.yml
 		build.cake = build.cake
 		BUILDING.md = BUILDING.md
 		CHANGES.txt = CHANGES.txt

azure-pipelines.yml

@@ -58,6 +58,7 @@ jobs:
       sudo dpkg -i packages-microsoft-prod.deb
       sudo apt-get install apt-transport-https
       sudo apt-get update
+      sudo apt-get install dotnet-sharedframework-microsoft.netcore.app-1.1.2
       sudo apt-get install dotnet-sdk-2.2
       ./build.sh --target=Test --configuration=Release
     displayName: Build and test
@@ -104,6 +105,12 @@ jobs:
       packageType: runtime
       version: 2.1.x
 
+  - task: UseDotNet@2
+    displayName: 'Install .NET Core runtime 1.1'
+    inputs:
+      packageType: runtime
+      version: 1.1.x
+
   - bash: |
      dotnet tool install --global Cake.Tool
      dotnet cake --target=Test --configuration=Release

build.cake

@@ -318,9 +318,8 @@ Task("TestNetStandard16Engine")
         if (IsDotNetCoreInstalled)
         {
             RunDotnetCoreTests(
-                NETCORE21_CONSOLE,
+                NETCOREAPP11_BIN_DIR + ENGINE_TESTS,
                 NETCOREAPP11_BIN_DIR,
-                ENGINE_TESTS,
                 "netcoreapp1.1",
                 ref ErrorDetail);
         }
@@ -343,9 +342,8 @@ Task("TestNetStandard20Engine")
         if (IsDotNetCoreInstalled)
         {
             RunDotnetCoreTests(
-                NETCORE21_CONSOLE,
+                NETCOREAPP21_BIN_DIR + ENGINE_TESTS,
                 NETCOREAPP21_BIN_DIR,
-                ENGINE_TESTS,
                 "netcoreapp2.1",
                 ref ErrorDetail);
         }
@@ -694,6 +692,11 @@ void RunTest(FilePath exePath, DirectoryPath workingDir, string testAssembly, st
         errorDetail.Add(string.Format("{0} returned rc = {1}", exePath, rc));
 }
 
+void RunDotnetCoreTests(FilePath exePath, DirectoryPath workingDir, string framework, ref List<string> errorDetail)
+{
+    RunDotnetCoreTests(exePath, workingDir, arguments: null, framework, ref errorDetail);
+}
+
 void RunDotnetCoreTests(FilePath exePath, DirectoryPath workingDir, string arguments, string framework, ref List<string> errorDetail)
 {
     int rc = StartProcess(