public async Task NoChangesFrom_DoesNotOverwriteNewChanges()
{
var projectFilePath = @"C:\ConsoleApp\ConsoleApp1\ConsoleApp1.csproj";
// Use some file encoding that's not the default
var unconfiguredProject = UnconfiguredProjectFactory.Create(filePath: projectFilePath, projectEncoding: Encoding.UTF8);
var projectXml = "<Project />";
var bufferXml = "<Project></Project>";
var docData = IVsPersistDocDataFactory.ImplementAsIVsTextBufferIsDocDataDirty(true, VSConstants.S_OK);
var textBuffer = ITextBufferFactory.ImplementSnapshot(() => bufferXml);
var textDocument = ITextDocumentFactory.ImplementTextBuffer(textBuffer);
var fileSystem = new IFileSystemMock();
var tempFilePath = @"C:\Temp\asdf.1234";
var tempProjectPath = Path.Combine(tempFilePath, "ConsoleApp1.csproj");
fileSystem.SetTempFile(tempFilePath);
var msbuildAccessor = IProjectXmlAccessorFactory.Implement(() => projectXml, xml => fileSystem.WriteAllText(tempProjectPath, xml));
var shellUtility = IVsShellUtilitiesHelperFactory.ImplementGetRDTInfo(Path.Combine(tempFilePath, "ConsoleApp1.csproj"), docData);
var editorAdapterFactory = IVsEditorAdaptersFactoryServiceFactory.ImplementGetDocumentBuffer(textBuffer);
var textDocumentService = ITextDocumentFactoryServiceFactory.ImplementGetTextDocument(textDocument, true);
var textBufferManager = new TempFileTextBufferManager(unconfiguredProject,
msbuildAccessor,
editorAdapterFactory,
textDocumentService,
shellUtility,
fileSystem,
new IProjectThreadingServiceMock(),
IServiceProviderFactory.Create());
await textBufferManager.InitializeBufferAsync();
var tempFile = fileSystem.Files.First(data => StringComparers.Paths.Equals(tempProjectPath, data.Key));
// First save. File system should be "<Project></Project>", last saved is also "<Project></Project>"
await textBufferManager.SaveAsync();
Assert.Equal("<Project></Project>", fileSystem.ReadAllText(tempProjectPath));
// Now we simulate some changes to the buffer and call Reset. Both the last saved and current project xml should be "<Project></Project>", so
// the buffer shouldn't be reset
projectXml = bufferXml;
bufferXml = "<Project>asdf</Project>";
await textBufferManager.ResetBufferAsync();
Mock.Get(textBuffer).Verify(t => t.Replace(It.IsAny <Span>(), It.IsAny <string>()), Times.Never);
Assert.Equal("<Project></Project>", fileSystem.ReadAllText(tempProjectPath));
}
public async Task ResetBufferDirtyDocData_UpdatesFileNotBuffer()
{
var projectFilePath = @"C:\ConsoleApp\ConsoleApp1\ConsoleApp1.csproj";
// Use some file encoding that's not the default
var encoding = Encoding.Default.Equals(Encoding.UTF8) ? Encoding.UTF32 : Encoding.UTF8;
var unconfiguredProject = UnconfiguredProjectFactory.Create(filePath: projectFilePath, projectEncoding: encoding);
var xml = "<Project />";
var msbuildAccessor = IProjectXmlAccessorFactory.Implement(() => xml, s => { });
var docData = IVsPersistDocDataFactory.ImplementAsIVsTextBufferIsDocDataDirty(true, VSConstants.S_OK);
var textBuffer = ITextBufferFactory.ImplementSnapshot("<Project />");
var textDocument = ITextDocumentFactory.ImplementTextBuffer(textBuffer);
var fileSystem = new IFileSystemMock();
var tempFilePath = @"C:\Temp\asdf.1234";
fileSystem.SetTempFile(tempFilePath);
var shellUtility = IVsShellUtilitiesHelperFactory.ImplementGetRDTInfo(Path.Combine(tempFilePath, "ConsoleApp1.csproj"), docData);
var editorAdapterFactory = IVsEditorAdaptersFactoryServiceFactory.ImplementGetDocumentBuffer(textBuffer);
var textDocumentService = ITextDocumentFactoryServiceFactory.ImplementGetTextDocument(textDocument, true);
var textBufferManager = new TempFileTextBufferManager(unconfiguredProject,
msbuildAccessor,
editorAdapterFactory,
textDocumentService,
shellUtility,
fileSystem,
new IProjectThreadingServiceMock(),
IServiceProviderFactory.Create());
await textBufferManager.InitializeBufferAsync();
var tempProjectPath = Path.Combine(tempFilePath, "ConsoleApp1.csproj");
var tempFile = fileSystem.Files.First(data => StringComparers.Paths.Equals(tempProjectPath, data.Key));
Assert.Equal("<Project />", fileSystem.ReadAllText(tempProjectPath));
xml = "<Project></Project>";
await textBufferManager.ResetBufferAsync();
Mock.Get(textBuffer).Verify(t => t.Replace(It.IsAny <Span>(), It.IsAny <string>()), Times.Never);
Assert.Equal("<Project></Project>", fileSystem.ReadAllText(tempProjectPath));
Mock.Get(unconfiguredProject).Verify(u => u.SaveAsync(null), Times.Once);
}