public void TestStore()
{
var textFactory = new TextFactoryServiceFactory.TextFactoryService();
var tempStorageService = new TemporaryStorageServiceFactory.TemporaryStorageService(textFactory);
var syntaxTreeStorageService = new SyntaxTreeStorageService();
var root = CSharp.SyntaxFactory.CompilationUnit();
var tree = CSharp.SyntaxFactory.SyntaxTree(root);
syntaxTreeStorageService.Store(tree, root, tempStorageService, CancellationToken.None);
Assert.True(syntaxTreeStorageService.CanRetrieve(tree));
}
public void TestRetrieve()
{
var textFactory = new TextFactoryServiceFactory.TextFactoryService();
var tempStorageService = new TemporaryStorageServiceFactory.TemporaryStorageService(textFactory);
var syntaxTreeStorageService = new SyntaxTreeStorageService();
var tree = CSharp.SyntaxFactory.ParseSyntaxTree("namespace A { class C {");
var root = tree.GetRoot();
syntaxTreeStorageService.Store(tree, root, tempStorageService, CancellationToken.None);
Assert.True(syntaxTreeStorageService.CanRetrieve(tree));
var syntaxFactoryService = new CSharp.CSharpSyntaxTreeFactoryServiceFactory().CreateLanguageService(provider: null) as ISyntaxTreeFactoryService;
var newRoot = syntaxTreeStorageService.Retrieve(tree, syntaxFactoryService, CancellationToken.None);
Assert.True(root.IsEquivalentTo(newRoot));
// we can't directly compare diagnostics since location in the diagnostic will point to two different trees
AssertEx.SetEqual(root.GetDiagnostics().Select(d => d.ToString()), newRoot.GetDiagnostics().Select(d => d.ToString()));
}
public async Task TestRemoveAsync()
{
var textFactory = new TextFactoryServiceFactory.TextFactoryService();
var tempStorageService = new TemporaryStorageServiceFactory.TemporaryStorageService(textFactory);
var syntaxTreeStorageService = new SyntaxTreeStorageService();
var root = CSharp.SyntaxFactory.CompilationUnit();
var tree = CSharp.SyntaxFactory.SyntaxTree(root);
var weakReference = new WeakReference(tree);
syntaxTreeStorageService.Store(tree, root, tempStorageService, CancellationToken.None);
Assert.True(syntaxTreeStorageService.CanRetrieve(tree));
// let tree and root go.
root = null;
tree = null;
var count = 0;
while (weakReference.IsAlive && count < 100)
{
GC.Collect();
await Task.Delay(5).ConfigureAwait(false);
count++;
}
// tree should go away before it reached 100
Assert.False(count == 100);
}