run test in ci instead of publish nuget package (#9)

Author: Summer

.travis.yml

@@ -1,10 +1,7 @@
 branches:
   only:
   - master
+  - develop
 language: csharp
-install:
-  - nuget pack -NoDefaultExcludes
-  - FILENAME="$(find . -name '*.nupkg')"
-  - nuget push "${FILENAME}" $APIKEY -Source $PACKAGE_SOURCE
 script:
-  - echo "success"
+  - dotnet test Test/Test.csproj

Test/Test.csproj

@@ -5,8 +5,10 @@
   </PropertyGroup>
 
   <ItemGroup>
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="15.5.0" />
     <PackageReference Include="xunit" Version="2.3.1" />
     <DotNetCliToolReference Include="dotnet-xunit" Version="2.3.1" />
+    <PackageReference Include="xunit.runner.visualstudio" Version="2.3.1" />
   </ItemGroup>
 
 </Project>