explicitly set build config in tests

Author: Harry

.github/workflows/release.yml

@@ -9,7 +9,6 @@ env:
 
 jobs:
   build:
-    if: startsWith(github.ref, 'refs/heads/release/')
     runs-on: ubuntu-latest
     steps:
     - uses: actions/checkout@v2
@@ -36,6 +35,7 @@ jobs:
         name: packages
         path: ./out
     - name: Create Release
+      if: startsWith(github.ref, 'refs/heads/release/')
       uses: marvinpinto/action-automatic-releases@v1.1.1
       with:
         repo_token: "${{ secrets.GITHUB_TOKEN }}"
@@ -45,10 +45,14 @@ jobs:
         files: |
           ./out/*
     - name: Push to Nuget.org
+      if: startsWith(github.ref, 'refs/heads/release/')
       run: dotnet nuget push ${{ format('./out/Neo.Assertions.{0}.nupkg', steps.nbgv.outputs.NuGetPackageVersion) }} --api-key ${{ secrets.NUGET_ORG_TOKEN }} --source https://api.nuget.org/v3/index.json
     - name: Push to Nuget.org
+      if: startsWith(github.ref, 'refs/heads/release/')
       run: dotnet nuget push ${{ format('./out/Neo.BuildTasks.{0}.nupkg', steps.nbgv.outputs.NuGetPackageVersion) }} --api-key ${{ secrets.NUGET_ORG_TOKEN }} --source https://api.nuget.org/v3/index.json
     - name: Push to Nuget.org
+      if: startsWith(github.ref, 'refs/heads/release/')
       run: dotnet nuget push ${{ format('./out/Neo.Test.Harness.{0}.nupkg', steps.nbgv.outputs.NuGetPackageVersion) }} --api-key ${{ secrets.NUGET_ORG_TOKEN }} --source https://api.nuget.org/v3/index.json
     - name: Push to Nuget.org
+      if: startsWith(github.ref, 'refs/heads/release/')
       run: dotnet nuget push ${{ format('./out/Neo.Test.Runner.{0}.nupkg', steps.nbgv.outputs.NuGetPackageVersion) }} --api-key ${{ secrets.NUGET_ORG_TOKEN }} --source https://api.nuget.org/v3/index.json

test/test-build-tasks/Extensions.cs

@@ -1,4 +1,5 @@
 using System;
+using System.Collections.Generic;
 using System.IO;
 using System.Linq;
 using Microsoft.Build.Utilities.ProjectCreation;
@@ -51,9 +52,10 @@ public static void RunThrow(this IProcessRunner @this, string command, string ar
             }
         }
 
-        public static ProjectCreator AssertBuild(this ProjectCreator @this, ITestOutputHelper? output = null)
+        public static ProjectCreator AssertBuild(this ProjectCreator @this, ITestOutputHelper? output = null, string configuration = "Debug")
         {
-            @this.TryBuild(restore: true, out bool result, out BuildOutput buildOutput);
+            var props = new Dictionary<string, string> { { "Configuration", configuration } };
+            @this.TryBuild(restore: true, props, out bool result, out BuildOutput buildOutput);
             if (!result)
             {
                 if (output != null)