public void GetOrAdd_ReturnsNewResultIfFileWasModified()
{
// Arrange
var fileProvider = new TestFileProvider();
fileProvider.AddFile(ViewPath, "some content");
var cache = new CompilerCache(Enumerable.Empty <RazorFileInfoCollection>(), TestLoadContext, fileProvider);
var expected1 = UncachedCompilationResult.Successful(typeof(TestView), "hello world");
var expected2 = UncachedCompilationResult.Successful(typeof(DifferentView), "different content");
// Act 1
var result1 = cache.GetOrAdd(ViewPath, _ => expected1);
// Assert 1
Assert.NotSame(CompilerCacheResult.FileNotFound, result1);
Assert.Same(expected1, result1.CompilationResult);
// Act 2
// Verify we're getting cached results.
var result2 = cache.GetOrAdd(ViewPath, ThrowsIfCalled);
// Assert 2
Assert.NotSame(CompilerCacheResult.FileNotFound, result2);
Assert.Same(expected1.CompiledType, result2.CompilationResult.CompiledType);
// Act 3
fileProvider.GetTrigger(ViewPath).IsExpired = true;
var result3 = cache.GetOrAdd(ViewPath, _ => expected2);
// Assert 3
Assert.NotSame(CompilerCacheResult.FileNotFound, result3);
Assert.Same(expected2, result3.CompilationResult);
}
public void GetOrAdd_NormalizesPathSepartorForPaths(string relativePath)
{
// Arrange
var viewPath = "/Areas/Finances/Views/Home/Index.cshtml";
var fileProvider = new TestFileProvider();
fileProvider.AddFile(viewPath, "some content");
var cache = new CompilerCache(fileProvider);
var type = typeof(TestView);
var expected = UncachedCompilationResult.Successful(type, "hello world");
// Act - 1
var result1 = cache.GetOrAdd(@"Areas\Finances\Views\Home\Index.cshtml", _ => expected);
// Assert - 1
var compilationResult = Assert.IsType <UncachedCompilationResult>(result1.CompilationResult);
Assert.Same(expected, compilationResult);
Assert.Same(type, compilationResult.CompiledType);
// Act - 2
var result2 = cache.GetOrAdd(relativePath, ThrowsIfCalled);
// Assert - 2
Assert.Same(type, result2.CompilationResult.CompiledType);
}
public void GetOrAdd_ReturnsFileNotFoundIfFileWasDeleted()
{
// Arrange
var fileProvider = new TestFileProvider();
fileProvider.AddFile(ViewPath, "some content");
var cache = new CompilerCache(Enumerable.Empty <RazorFileInfoCollection>(), TestLoadContext, fileProvider);
var type = typeof(TestView);
var expected = UncachedCompilationResult.Successful(type, "hello world");
// Act 1
var result1 = cache.GetOrAdd(ViewPath, _ => expected);
// Assert 1
Assert.NotSame(CompilerCacheResult.FileNotFound, result1);
Assert.Same(expected, result1.CompilationResult);
// Act 2
// Delete the file from the file system and set it's expiration trigger.
fileProvider.DeleteFile(ViewPath);
fileProvider.GetTrigger(ViewPath).IsExpired = true;
var result2 = cache.GetOrAdd(ViewPath, ThrowsIfCalled);
// Assert 2
Assert.Same(CompilerCacheResult.FileNotFound, result2);
Assert.Null(result2.CompilationResult);
}
public void GetOrAdd_DoesNotQueryFileSystem_IfCachedFileTriggerWasNotSet()
{
// Arrange
var mockFileProvider = new Mock <TestFileProvider> {
CallBase = true
};
var fileProvider = mockFileProvider.Object;
fileProvider.AddFile(ViewPath, "some content");
var cache = new CompilerCache(Enumerable.Empty <RazorFileInfoCollection>(), TestLoadContext, fileProvider);
var type = typeof(TestView);
var expected = UncachedCompilationResult.Successful(type, "hello world");
// Act 1
var result1 = cache.GetOrAdd(ViewPath, _ => expected);
// Assert 1
Assert.NotSame(CompilerCacheResult.FileNotFound, result1);
Assert.Same(expected, result1.CompilationResult);
// Act 2
var result2 = cache.GetOrAdd(ViewPath, ThrowsIfCalled);
// Assert 2
Assert.NotSame(CompilerCacheResult.FileNotFound, result2);
Assert.IsType <CompilationResult>(result2.CompilationResult);
Assert.Same(type, result2.CompilationResult.CompiledType);
mockFileProvider.Verify(v => v.GetFileInfo(ViewPath), Times.Once());
}
public void GetOrAdd_ReturnsFileNotFoundIfFileWasDeleted()
{
// Arrange
var fileProvider = new TestFileProvider();
fileProvider.AddFile(ViewPath, "some content");
var cache = new CompilerCache(fileProvider);
var type = typeof(TestView);
var expected = UncachedCompilationResult.Successful(type, "hello world");
// Act 1
var result1 = cache.GetOrAdd(ViewPath, _ => expected);
// Assert 1
Assert.NotSame(CompilerCacheResult.FileNotFound, result1);
Assert.Same(expected, result1.CompilationResult);
// Act 2
// Delete the file from the file system and set it's expiration token.
fileProvider.DeleteFile(ViewPath);
fileProvider.GetChangeToken(ViewPath).HasChanged = true;
var result2 = cache.GetOrAdd(ViewPath, ThrowsIfCalled);
// Assert 2
Assert.Same(CompilerCacheResult.FileNotFound, result2);
Assert.Null(result2.CompilationResult);
}
public void GetOrAdd_ReturnsNewResult_IfAncestorViewImportsWereModified(string globalImportPath)
{
// Arrange
var fileProvider = new TestFileProvider();
fileProvider.AddFile(ViewPath, "some content");
var cache = new CompilerCache(fileProvider);
var expected1 = UncachedCompilationResult.Successful(typeof(TestView), "hello world");
var expected2 = UncachedCompilationResult.Successful(typeof(DifferentView), "different content");
// Act 1
var result1 = cache.GetOrAdd(ViewPath, _ => expected1);
// Assert 1
Assert.NotSame(CompilerCacheResult.FileNotFound, result1);
Assert.Same(expected1, result1.CompilationResult);
// Act 2
// Verify we're getting cached results.
var result2 = cache.GetOrAdd(ViewPath, ThrowsIfCalled);
// Assert 2
Assert.NotSame(CompilerCacheResult.FileNotFound, result2);
Assert.Same(expected1.CompiledType, result2.CompilationResult.CompiledType);
// Act 3
fileProvider.GetChangeToken(globalImportPath).HasChanged = true;
var result3 = cache.GetOrAdd(ViewPath, _ => expected2);
// Assert 2
Assert.NotSame(CompilerCacheResult.FileNotFound, result3);
Assert.Same(expected2, result3.CompilationResult);
}
public void GetOrAdd_ReturnsNewResultIfFileWasModified()
{
// Arrange
var fileProvider = new TestFileProvider();
fileProvider.AddFile(ViewPath, "some content");
var cache = new CompilerCache(Enumerable.Empty <RazorFileInfoCollection>(), TestLoadContext, fileProvider);
var type = typeof(RuntimeCompileIdentical);
var expected1 = UncachedCompilationResult.Successful(type, "hello world");
var expected2 = UncachedCompilationResult.Successful(type, "different content");
// Act 1
var result1 = cache.GetOrAdd(ViewPath, _ => expected1);
// Assert 1
Assert.NotSame(CompilerCacheResult.FileNotFound, result1);
Assert.Same(expected1, result1.CompilationResult);
// Act 2
fileProvider.GetTrigger(ViewPath).IsExpired = true;
var result2 = cache.GetOrAdd(ViewPath, _ => expected2);
// Assert 2
Assert.NotSame(CompilerCacheResult.FileNotFound, result2);
Assert.Same(expected2, result2.CompilationResult);
}
public void GetOrAdd_DoesNotCacheCompiledContent_OnCallsAfterInitial()
{
// Arrange
var lastModified = DateTime.UtcNow;
var fileProvider = new TestFileProvider();
var cache = new CompilerCache(Enumerable.Empty <RazorFileInfoCollection>(), TestLoadContext, fileProvider);
var fileInfo = new TestFileInfo
{
PhysicalPath = "test",
LastModified = lastModified
};
fileProvider.AddFile("test", fileInfo);
var type = GetType();
var uncachedResult = UncachedCompilationResult.Successful(type, "hello world");
// Act
cache.GetOrAdd("test", _ => uncachedResult);
var result1 = cache.GetOrAdd("test", _ => { throw new Exception("shouldn't be called."); });
var result2 = cache.GetOrAdd("test", _ => { throw new Exception("shouldn't be called."); });
// Assert
Assert.NotSame(CompilerCacheResult.FileNotFound, result1);
Assert.NotSame(CompilerCacheResult.FileNotFound, result2);
var actual1 = Assert.IsType <CompilationResult>(result1.CompilationResult);
var actual2 = Assert.IsType <CompilationResult>(result2.CompilationResult);
Assert.NotSame(uncachedResult, actual1);
Assert.NotSame(uncachedResult, actual2);
Assert.Same(type, actual1.CompiledType);
Assert.Same(type, actual2.CompiledType);
}
public void GetOrAdd_ReturnsCompilationResultFromFactory()
{
// Arrange
var fileProvider = new TestFileProvider();
fileProvider.AddFile(ViewPath, "some content");
var cache = new CompilerCache(Enumerable.Empty <RazorFileInfoCollection>(), TestLoadContext, fileProvider);
var type = typeof(TestView);
var expected = UncachedCompilationResult.Successful(type, "hello world");
// Act
var result = cache.GetOrAdd(ViewPath, _ => expected);
// Assert
Assert.NotSame(CompilerCacheResult.FileNotFound, result);
var actual = Assert.IsType <UncachedCompilationResult>(result.CompilationResult);
Assert.NotNull(actual);
Assert.Same(expected, actual);
Assert.Equal("hello world", actual.CompiledContent);
Assert.Same(type, actual.CompiledType);
}
/// <inheritdoc />
public CompilationResult Compile(IFileInfo fileInfo, string compilationContent)
{
var sourceText = SourceText.From(compilationContent, Encoding.UTF8);
var syntaxTrees = new[] { CSharpSyntaxTree.ParseText(sourceText, path: fileInfo.PhysicalPath) };
var references = _applicationReferences.Value;
var assemblyName = Path.GetRandomFileName();
var compilation = CSharpCompilation.Create(assemblyName,
options: new CSharpCompilationOptions(OutputKind.DynamicallyLinkedLibrary),
syntaxTrees: syntaxTrees,
references: references);
using (var ms = new MemoryStream())
{
using (var pdb = new MemoryStream())
{
EmitResult result;
if (PlatformHelper.IsMono)
{
result = compilation.Emit(ms, pdbStream: null);
}
else
{
result = compilation.Emit(ms, pdbStream: pdb);
}
if (!result.Success)
{
var formatter = new DiagnosticFormatter();
var messages = result.Diagnostics
.Where(IsError)
.Select(d => GetCompilationMessage(formatter, d))
.ToList();
return(CompilationResult.Failed(fileInfo, compilationContent, messages));
}
Assembly assembly;
ms.Seek(0, SeekOrigin.Begin);
if (PlatformHelper.IsMono)
{
assembly = _loader.LoadStream(ms, pdbStream: null);
}
else
{
pdb.Seek(0, SeekOrigin.Begin);
assembly = _loader.LoadStream(ms, pdb);
}
var type = assembly.GetExportedTypes()
.First();
return(UncachedCompilationResult.Successful(type, compilationContent));
}
}
}
/// <inheritdoc />
public CompilationResult Compile([NotNull] RelativeFileInfo fileInfo, [NotNull] string compilationContent)
{
var assemblyName = Path.GetRandomFileName();
var compilationSettings = _compilerOptionsProvider.GetCompilationSettings(_environment);
var syntaxTree = SyntaxTreeGenerator.Generate(compilationContent,
assemblyName,
compilationSettings);
var references = _applicationReferences.Value;
var compilationOptions = compilationSettings.CompilationOptions
.WithOutputKind(OutputKind.DynamicallyLinkedLibrary);
var compilation = CSharpCompilation.Create(assemblyName,
options: compilationOptions,
syntaxTrees: new[] { syntaxTree },
references: references);
using (var ms = new MemoryStream())
{
using (var pdb = new MemoryStream())
{
EmitResult result;
if (_supportsPdbGeneration.Value)
{
result = compilation.Emit(ms, pdbStream: pdb);
}
else
{
result = compilation.Emit(ms);
}
if (!result.Success)
{
return(GetCompilationFailedResult(
fileInfo.RelativePath,
compilationContent,
assemblyName,
result.Diagnostics));
}
Assembly assembly;
ms.Seek(0, SeekOrigin.Begin);
if (_supportsPdbGeneration.Value)
{
pdb.Seek(0, SeekOrigin.Begin);
assembly = _loader.LoadStream(ms, pdb);
}
else
{
assembly = _loader.LoadStream(ms, assemblySymbols: null);
}
var type = assembly.GetExportedTypes()
.First(t => t.Name.StartsWith(_classPrefix, StringComparison.Ordinal));
return(UncachedCompilationResult.Successful(type, compilationContent));
}
}
}
/// <inheritdoc />
public CompilationResult Compile(IFileInfo fileInfo, string compilationContent)
{
var syntaxTrees = new[] { SyntaxTreeGenerator.Generate(compilationContent, fileInfo.PhysicalPath) };
var references = _applicationReferences.Value;
var assemblyName = Path.GetRandomFileName();
var compilation = CSharpCompilation.Create(assemblyName,
options: new CSharpCompilationOptions(OutputKind.DynamicallyLinkedLibrary),
syntaxTrees: syntaxTrees,
references: references);
using (var ms = new MemoryStream())
{
using (var pdb = new MemoryStream())
{
EmitResult result;
if (_supportsPdbGeneration.Value)
{
result = compilation.Emit(ms, pdbStream: pdb);
}
else
{
result = compilation.Emit(ms);
}
if (!result.Success)
{
var formatter = new DiagnosticFormatter();
var messages = result.Diagnostics
.Where(IsError)
.Select(d => GetCompilationMessage(formatter, d))
.ToList();
return(CompilationResult.Failed(fileInfo, compilationContent, messages));
}
Assembly assembly;
ms.Seek(0, SeekOrigin.Begin);
if (_supportsPdbGeneration.Value)
{
pdb.Seek(0, SeekOrigin.Begin);
assembly = _loader.LoadStream(ms, pdb);
}
else
{
assembly = _loader.LoadStream(ms, assemblySymbols: null);
}
var type = assembly.GetExportedTypes()
.First(t => t.Name.
StartsWith(_classPrefix, StringComparison.Ordinal));
return(UncachedCompilationResult.Successful(type));
}
}
}