private IEnumerable <UnitTestElement> GetTests(string source)
{
var pluginPath = Path.GetDirectoryName(GetType().Assembly.Location);
var sourcePath = Path.GetDirectoryName(source);
var paths = new[] { pluginPath, sourcePath };
// Set up a separate app domain to avoid locking files.
using (new AssemblyResolver(paths))
using (var testDomain = Dispose.Of(AppDomain.CreateDomain($"{nameof(MSTestAutomationDiscoverer)}: {Path.GetFileName(source)}",
AppDomain.CurrentDomain.Evidence,
new AppDomainSetup
{
ApplicationBase = pluginPath,
ShadowCopyFiles = "true",
ShadowCopyDirectories = sourcePath,
AppDomainInitializer = InitializeDomain,
AppDomainInitializerArguments = paths,
LoaderOptimization = LoaderOptimization.MultiDomain,
DisallowBindingRedirects = false
}), AppDomain.Unload))
{
var testSink = (ITestSink)testDomain.Value.CreateObject <TestSink>();
testDomain.Value.SetData("source", source);
testDomain.Value.SetData("testSink", testSink);
testDomain.Value.DoCallBack(DiscoverTests);
return(testSink.Tests);
}
}