diff --git a/TestAssets/DesktopTestProjects/BindingRedirectSample/AppWithRedirectsAndConfig/AppWithRedirectsAndConfig.csproj b/TestAssets/DesktopTestProjects/BindingRedirectSample/AppWithRedirectsAndConfig/AppWithRedirectsAndConfig.csproj
index 82a5ad25d..287b089bb 100644
--- a/TestAssets/DesktopTestProjects/BindingRedirectSample/AppWithRedirectsAndConfig/AppWithRedirectsAndConfig.csproj
+++ b/TestAssets/DesktopTestProjects/BindingRedirectSample/AppWithRedirectsAndConfig/AppWithRedirectsAndConfig.csproj
@@ -4,6 +4,7 @@
     <AssemblyName>AppWithRedirectsAndConfig</AssemblyName>
     <OutputType>Exe</OutputType>
     <RuntimeIdentifiers>win7-x64;win7-x86</RuntimeIdentifiers>
+    <RestoreAdditionalProjectSources Condition="'$(TEST_PACKAGES)' != ''">$(TEST_PACKAGES)</RestoreAdditionalProjectSources>
   </PropertyGroup>
 
   <ItemGroup>
diff --git a/TestAssets/DesktopTestProjects/BindingRedirectSample/AppWithRedirectsNoConfig/AppWithRedirectsNoConfig.csproj b/TestAssets/DesktopTestProjects/BindingRedirectSample/AppWithRedirectsNoConfig/AppWithRedirectsNoConfig.csproj
index 94b99d56b..8e5fc172e 100644
--- a/TestAssets/DesktopTestProjects/BindingRedirectSample/AppWithRedirectsNoConfig/AppWithRedirectsNoConfig.csproj
+++ b/TestAssets/DesktopTestProjects/BindingRedirectSample/AppWithRedirectsNoConfig/AppWithRedirectsNoConfig.csproj
@@ -4,6 +4,7 @@
     <AssemblyName>AppWithRedirectsNoConfig</AssemblyName>
     <OutputType>Exe</OutputType>
     <RuntimeIdentifiers>win7-x64;win7-x86</RuntimeIdentifiers>
+    <RestoreAdditionalProjectSources Condition="'$(TEST_PACKAGES)' != ''">$(TEST_PACKAGES)</RestoreAdditionalProjectSources>
   </PropertyGroup>
 
   <ItemGroup>
diff --git a/TestAssets/DesktopTestProjects/BindingRedirectSample/NuGet.Config b/TestAssets/DesktopTestProjects/BindingRedirectSample/NuGet.Config
deleted file mode 100644
index b8e876fcb..000000000
--- a/TestAssets/DesktopTestProjects/BindingRedirectSample/NuGet.Config
+++ /dev/null
@@ -1,6 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<configuration>
-  <packageSources>
-    <add key="test-packages" value="../../../artifacts/testpackages" />
-  </packageSources>
-</configuration>
diff --git a/TestAssets/TestProjects/AppWithDepOnToolWithOutputName/AppWithDepOnToolWithOutputName.csproj b/TestAssets/TestProjects/AppWithDepOnToolWithOutputName/AppWithDepOnToolWithOutputName.csproj
index 9adf4c6fc..0559ffd92 100755
--- a/TestAssets/TestProjects/AppWithDepOnToolWithOutputName/AppWithDepOnToolWithOutputName.csproj
+++ b/TestAssets/TestProjects/AppWithDepOnToolWithOutputName/AppWithDepOnToolWithOutputName.csproj
@@ -4,6 +4,7 @@
   <PropertyGroup>
     <TargetFramework>netcoreapp2.0</TargetFramework>
     <OutputType>Exe</OutputType>
+    <RestoreAdditionalProjectSources Condition="'$(TEST_PACKAGES)' != ''">$(TEST_PACKAGES)</RestoreAdditionalProjectSources>
   </PropertyGroup>
 
   <ItemGroup>
diff --git a/TestAssets/TestProjects/AppWithDepOnToolWithOutputName/NuGet.Config b/TestAssets/TestProjects/AppWithDepOnToolWithOutputName/NuGet.Config
deleted file mode 100644
index b8e876fcb..000000000
--- a/TestAssets/TestProjects/AppWithDepOnToolWithOutputName/NuGet.Config
+++ /dev/null
@@ -1,6 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<configuration>
-  <packageSources>
-    <add key="test-packages" value="../../../artifacts/testpackages" />
-  </packageSources>
-</configuration>
diff --git a/TestAssets/TestProjects/AppWithDirectAndToolDep/AppWithDirectAndToolDep.csproj b/TestAssets/TestProjects/AppWithDirectAndToolDep/AppWithDirectAndToolDep.csproj
index df284421b..d94296238 100755
--- a/TestAssets/TestProjects/AppWithDirectAndToolDep/AppWithDirectAndToolDep.csproj
+++ b/TestAssets/TestProjects/AppWithDirectAndToolDep/AppWithDirectAndToolDep.csproj
@@ -4,6 +4,7 @@
   <PropertyGroup>
     <TargetFramework>netcoreapp2.0</TargetFramework>
     <OutputType>Exe</OutputType>
+    <RestoreAdditionalProjectSources Condition="'$(TEST_PACKAGES)' != ''">$(TEST_PACKAGES)</RestoreAdditionalProjectSources>
   </PropertyGroup>
 
   <ItemGroup>
diff --git a/TestAssets/TestProjects/AppWithDirectAndToolDep/NuGet.Config b/TestAssets/TestProjects/AppWithDirectAndToolDep/NuGet.Config
deleted file mode 100644
index dd7ccd7af..000000000
--- a/TestAssets/TestProjects/AppWithDirectAndToolDep/NuGet.Config
+++ /dev/null
@@ -1,6 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<configuration>
-  <packageSources>
-    <add key="test-packages" value="../../../artifacts/testpackages/packages" />
-  </packageSources>
-</configuration>
diff --git a/TestAssets/TestProjects/AppWithDirectDep/AppWithDirectDep.csproj b/TestAssets/TestProjects/AppWithDirectDep/AppWithDirectDep.csproj
index 6995199ee..f8fea864c 100755
--- a/TestAssets/TestProjects/AppWithDirectDep/AppWithDirectDep.csproj
+++ b/TestAssets/TestProjects/AppWithDirectDep/AppWithDirectDep.csproj
@@ -7,6 +7,7 @@
     <AssemblyName>AppWithDirectDep</AssemblyName>
     <OutputType>Exe</OutputType>
     <PackageRequireLicenseAcceptance>false</PackageRequireLicenseAcceptance>
+    <RestoreAdditionalProjectSources Condition="'$(TEST_PACKAGES)' != ''">$(TEST_PACKAGES)</RestoreAdditionalProjectSources>
   </PropertyGroup>
 
   <ItemGroup>
diff --git a/TestAssets/TestProjects/AppWithDirectDep/NuGet.Config b/TestAssets/TestProjects/AppWithDirectDep/NuGet.Config
deleted file mode 100644
index dd7ccd7af..000000000
--- a/TestAssets/TestProjects/AppWithDirectDep/NuGet.Config
+++ /dev/null
@@ -1,6 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<configuration>
-  <packageSources>
-    <add key="test-packages" value="../../../artifacts/testpackages/packages" />
-  </packageSources>
-</configuration>
diff --git a/TestAssets/TestProjects/AppWithMultipleFxAndTools/MSBuildAppWithMultipleFrameworksAndTools.csproj b/TestAssets/TestProjects/AppWithMultipleFxAndTools/MSBuildAppWithMultipleFrameworksAndTools.csproj
index 33cb2b5a7..3f38586d5 100644
--- a/TestAssets/TestProjects/AppWithMultipleFxAndTools/MSBuildAppWithMultipleFrameworksAndTools.csproj
+++ b/TestAssets/TestProjects/AppWithMultipleFxAndTools/MSBuildAppWithMultipleFrameworksAndTools.csproj
@@ -4,6 +4,7 @@
   <PropertyGroup>
     <OutputType>Exe</OutputType>
     <TargetFrameworks>net451;netcoreapp2.0</TargetFrameworks>
+    <RestoreAdditionalProjectSources Condition="'$(TEST_PACKAGES)' != ''">$(TEST_PACKAGES)</RestoreAdditionalProjectSources>
   </PropertyGroup>
 
   <ItemGroup>
diff --git a/TestAssets/TestProjects/AppWithMultipleFxAndTools/NuGet.Config b/TestAssets/TestProjects/AppWithMultipleFxAndTools/NuGet.Config
deleted file mode 100644
index b8e876fcb..000000000
--- a/TestAssets/TestProjects/AppWithMultipleFxAndTools/NuGet.Config
+++ /dev/null
@@ -1,6 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<configuration>
-  <packageSources>
-    <add key="test-packages" value="../../../artifacts/testpackages" />
-  </packageSources>
-</configuration>
diff --git a/TestAssets/TestProjects/AppWithToolDependency/AppWithToolDependency.csproj b/TestAssets/TestProjects/AppWithToolDependency/AppWithToolDependency.csproj
index 7f9c16848..6f493b0c3 100755
--- a/TestAssets/TestProjects/AppWithToolDependency/AppWithToolDependency.csproj
+++ b/TestAssets/TestProjects/AppWithToolDependency/AppWithToolDependency.csproj
@@ -4,6 +4,7 @@
   <PropertyGroup>
     <TargetFramework>netcoreapp2.0</TargetFramework>
     <OutputType>Exe</OutputType>
+    <RestoreAdditionalProjectSources Condition="'$(TEST_PACKAGES)' != ''">$(TEST_PACKAGES)</RestoreAdditionalProjectSources>
   </PropertyGroup>
 
   <ItemGroup>
diff --git a/TestAssets/TestProjects/AppWithToolDependency/NuGet.Config b/TestAssets/TestProjects/AppWithToolDependency/NuGet.Config
deleted file mode 100644
index b8e876fcb..000000000
--- a/TestAssets/TestProjects/AppWithToolDependency/NuGet.Config
+++ /dev/null
@@ -1,6 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<configuration>
-  <packageSources>
-    <add key="test-packages" value="../../../artifacts/testpackages" />
-  </packageSources>
-</configuration>
diff --git a/TestAssets/TestProjects/NuGet.Config b/TestAssets/TestProjects/NuGet.Config
deleted file mode 100644
index b03d4d16c..000000000
--- a/TestAssets/TestProjects/NuGet.Config
+++ /dev/null
@@ -1,6 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<configuration>
-  <packageSources>
-    <add key="Local" value="Packages" />
-  </packageSources>
-</configuration>
diff --git a/TestAssets/TestProjects/global.json b/TestAssets/TestProjects/global.json
deleted file mode 100644
index 09f20328d..000000000
--- a/TestAssets/TestProjects/global.json
+++ /dev/null
@@ -1,3 +0,0 @@
-{
-    "projects": [ ".", "../../src" ]
-}
\ No newline at end of file