public void Should_Install_Addins_Referenced_By_Scripts()
{
// Given
var fixture = new ScriptProcessorFixture();
fixture.GivenAddinFilesAreDownloaded();
// When
fixture.InstallAddins();
// Then
fixture.Installer.Received(1).InstallPackage(
Arg.Is <NuGetPackage>(package =>
package.PackageId == "Addin" &&
package.Source == "http://example.com"),
Arg.Any <DirectoryPath>());
}