public static void Scenario_FindACoreAssembly()
{
// Ensure you can do all this without setting a core assembly.
using (TypeLoader tl = new TypeLoader())
{
Assembly[] candidates =
{
tl.LoadFromAssemblyPath(typeof(GenericClass1 <>).Assembly.Location),
tl.LoadFromAssemblyPath(typeof(object).Assembly.Location),
};
foreach (Assembly candidate in candidates)
{
Type objectType = candidate.GetType("System.Object", throwOnError: false);
if (objectType != null)
{
// Found our core assembly. Ensure it's not too late to set the CoreAssemblyName property.
tl.CoreAssemblyName = objectType.Assembly.GetName().FullName;
return;
}
}
Assert.True(false, "Did not find a core assembly.");
}
}
public static void ModuleGetTypes()
{
using (TempDirectory td = new TempDirectory())
{
string assemblyPath = Path.Combine(td.Path, "MultiModule.dll");
string bobNetModulePath = Path.Combine(td.Path, "Bob.netmodule");
File.WriteAllBytes(assemblyPath, TestData.s_MultiModuleDllImage);
File.WriteAllBytes(bobNetModulePath, TestData.s_JoeNetModuleImage); // Note: ScopeName ("Joe") intentionally different from manifest name ("Bob")
using (TypeLoader tl = new TypeLoader())
{
Assembly a = tl.LoadFromAssemblyPath(assemblyPath);
Type[] types = a.ManifestModule.GetTypes();
Assert.Equal(2, types.Length);
AssertMainModuleTypesFound(types, a);
Module bob = a.GetModule("Bob.netmodule");
Assert.NotNull(bob);
Type[] bobTypes = bob.GetTypes();
Assert.Equal(2, bobTypes.Length);
AssertBobModuleTypesFound(bobTypes, a);
}
}
}
public static void LoadFromAssemblyPathNull()
{
using (TypeLoader tl = new TypeLoader())
{
Assert.Throws <ArgumentNullException>(() => tl.LoadFromAssemblyPath(null));
}
}
//
// For a given assembly name and its full path, Reflection-Only load the assembly directly
// from the file in disk or load the file to memory and then create assembly instance from
// memory buffer data.
//
private static Assembly ReflectionOnlyLoadAssembly(string assemblyName, string fullPathToAssembly)
{
Assembly assembly = null;
// If the assembly path is empty, try to load assembly by name. LoadFromAssemblyName
// will result in a TypeLoader.Resolve event that will contain more information about the
// requested assembly.
if (String.IsNullOrEmpty(fullPathToAssembly))
{
return(_typeLoader.LoadFromAssemblyName(assemblyName));
}
else if (_cachedTypeLoaderAssemblies.TryGetValue(fullPathToAssembly, out assembly))
{
return(assembly);
}
else if (!String.IsNullOrEmpty(assemblyName) && _cachedTypeLoaderAssemblies.TryGetValue(assemblyName, out assembly))
{
return(assembly);
}
else
{
assembly = _typeLoader.LoadFromAssemblyPath(fullPathToAssembly);
}
// Add the assembly to the cache. ReflectionHelper.ReflectionOnlyLoadAssembly
// receives frequent calls requesting the same assembly.
if (assembly != null && fullPathToAssembly != null)
{
_cachedTypeLoaderAssemblies.Add(fullPathToAssembly, assembly);
_cachedTypeLoaderReferencePaths.Add(Path.GetDirectoryName(fullPathToAssembly));
}
return(assembly);
}
public static void GetLoadModules2()
{
using (TempDirectory td = new TempDirectory())
{
string assemblyPath = Path.Combine(td.Path, "n.dll");
string myRes1Path = Path.Combine(td.Path, "MyRes1");
string myRes2Path = Path.Combine(td.Path, "MyRes2");
File.WriteAllBytes(assemblyPath, TestData.s_AssemblyWithResourcesInManifestFilesImage);
File.WriteAllBytes(myRes1Path, TestData.s_MyRes1);
File.WriteAllBytes(myRes2Path, TestData.s_MyRes2);
using (TypeLoader tl = new TypeLoader())
{
Assembly a = tl.LoadFromAssemblyPath(assemblyPath);
Module res1 = a.GetModule("MyRes1");
Module res2 = a.GetModule("MyRes2");
{
Module[] modules = a.GetLoadedModules(getResourceModules: true);
Assert.Equal(3, modules.Length);
Assert.Contains <Module>(a.ManifestModule, modules);
Assert.Contains <Module>(res1, modules);
Assert.Contains <Module>(res2, modules);
}
{
Module[] modules = a.GetLoadedModules(getResourceModules: false);
Assert.Equal(1, modules.Length);
Assert.Equal(a.ManifestModule, modules[0]);
}
}
}
}
public static void AssemblyLocationFile()
{
using (TempFile tf = TempFile.Create(TestData.s_SimpleAssemblyImage))
using (TypeLoader tl = new TypeLoader())
{
Assembly a = tl.LoadFromAssemblyPath(tf.Path);
string location = a.Location;
Assert.Equal(tf.Path, location);
}
}
public static void Scenario_GetAssemblyName()
{
// Ensure you can do all this without resolving dependencies.
using (TypeLoader tl = new TypeLoader())
{
Assembly a = tl.LoadFromAssemblyPath(typeof(GenericClass1 <>).Assembly.Location);
AssemblyName assemblyName = a.GetName();
Console.WriteLine(assemblyName.FullName);
}
}
public static void CoreGetTypeCacheCoverage3()
{
using (TypeLoader tl = new TypeLoader())
{
// Make sure the tricky corner case of a null/empty namespace is covered.
Assembly a = tl.LoadFromAssemblyPath(typeof(TopLevelType).Assembly.Location);
Type t = a.GetType("TopLevelType", throwOnError: true, ignoreCase: false);
Assert.Equal(null, t.Namespace);
Assert.Equal("TopLevelType", t.Name);
}
}
public static void ModuleFullyQualifiedNameFromPath()
{
using (TempFile tf = TempFile.Create(TestData.s_SimpleAssemblyImage))
using (TypeLoader tl = new TypeLoader())
{
string path = tf.Path;
Assembly a = tl.LoadFromAssemblyPath(path);
Module m = a.ManifestModule;
Assert.Equal(path, m.FullyQualifiedName);
}
}
public static void ModuleGetNameFromPath()
{
using (TempFile tf = TempFile.Create(TestData.s_SimpleAssemblyImage))
using (TypeLoader tl = new TypeLoader())
{
string path = tf.Path;
Assembly a = tl.LoadFromAssemblyPath(path);
Module m = a.ManifestModule;
string name = Path.GetFileName(path);
Assert.Equal(name, m.Name);
}
}
public static void TypeLoaderApisAfterDispose()
{
TypeLoader tl = new TypeLoader();
tl.Dispose();
Assert.Throws <ObjectDisposedException>(() => tl.LoadFromAssemblyName(new AssemblyName("Foo")));
Assert.Throws <ObjectDisposedException>(() => tl.LoadFromAssemblyName("Foo"));
Assert.Throws <ObjectDisposedException>(() => tl.LoadFromAssemblyPath("Foo"));
Assert.Throws <ObjectDisposedException>(() => tl.LoadFromByteArray(TestData.s_SimpleAssemblyImage));
Assert.Throws <ObjectDisposedException>(() => tl.LoadFromStream(new MemoryStream(TestData.s_SimpleAssemblyImage)));
}
public static void Scenario_EnumerateDependencies()
{
// Ensure you can do all this without resolving dependencies.
using (TypeLoader tl = new TypeLoader())
{
Assembly a = tl.LoadFromAssemblyPath(typeof(GenericClass1 <>).Assembly.Location);
foreach (AssemblyName name in a.GetReferencedAssemblies())
{
Console.WriteLine(name.FullName);
}
}
}
public static void LoadMultiModuleFromDisk_GetModuleNameNotThere()
{
using (TempDirectory td = new TempDirectory())
{
string assemblyPath = Path.Combine(td.Path, "MultiModule.dll");
File.WriteAllBytes(assemblyPath, TestData.s_MultiModuleDllImage);
using (TypeLoader tl = new TypeLoader())
{
Assembly a = tl.LoadFromAssemblyPath(assemblyPath);
Assert.Throws <FileNotFoundException>(() => a.GetModule("Bob.netmodule"));
}
}
}
public static void LoadFromDifferentLocations()
{
using (TempFile tf1 = TempFile.Create(TestData.s_SimpleAssemblyImage))
using (TempFile tf2 = TempFile.Create(TestData.s_SimpleAssemblyImage))
using (TypeLoader tl = new TypeLoader())
{
// As long as the MVID matches, you can load the same assembly from multiple locations.
Assembly a = tl.LoadFromByteArray(TestData.s_SimpleAssemblyImage);
Assert.NotNull(a);
Assembly a1 = tl.LoadFromByteArray(TestData.s_SimpleAssemblyImage);
Assert.Equal(a, a1);
Assembly a2 = tl.LoadFromAssemblyName(new AssemblyName(TestData.s_SimpleAssemblyName));
Assert.Equal(a, a2);
Assembly a3 = tl.LoadFromAssemblyPath(tf1.Path);
Assert.Equal(a, a3);
Assembly a4 = tl.LoadFromAssemblyPath(tf2.Path);
Assert.Equal(a, a4);
}
}
public static void AssemblyWithResourcesInManifestFile()
{
using (TempDirectory td = new TempDirectory())
{
string assemblyPath = Path.Combine(td.Path, "n.dll");
string myRes1Path = Path.Combine(td.Path, "MyRes1");
string myRes2Path = Path.Combine(td.Path, "MyRes2");
string myRes3Path = Path.Combine(td.Path, "MyRes3");
File.WriteAllBytes(assemblyPath, TestData.s_AssemblyWithResourcesInManifestFilesImage);
File.WriteAllBytes(myRes1Path, TestData.s_MyRes1);
File.WriteAllBytes(myRes2Path, TestData.s_MyRes2);
File.WriteAllBytes(myRes3Path, TestData.s_MyRes3);
using (TypeLoader tl = new TypeLoader())
{
Assembly a = tl.LoadFromAssemblyPath(assemblyPath);
string[] names = a.GetManifestResourceNames().OrderBy(s => s).ToArray();
Assert.Equal <string>(new string[] { "MyRes1", "MyRes2", "MyRes3" }, names);
foreach (string name in names)
{
ManifestResourceInfo mri = a.GetManifestResourceInfo(name);
Assert.Equal(default(ResourceLocation), mri.ResourceLocation);
Assert.Equal(name, mri.FileName);
Assert.Null(mri.ReferencedAssembly);
}
using (Stream s = a.GetManifestResourceStream("MyRes1"))
{
byte[] res = s.ToArray();
Assert.Equal <byte>(TestData.s_MyRes1, res);
}
using (Stream s = a.GetManifestResourceStream("MyRes2"))
{
byte[] res = s.ToArray();
Assert.Equal <byte>(TestData.s_MyRes2, res);
}
using (Stream s = a.GetManifestResourceStream("MyRes3"))
{
byte[] res = s.ToArray();
Assert.Equal <byte>(TestData.s_MyRes3, res);
}
}
}
}
public static void TestRestrictions()
{
using (TypeLoader tl = new TypeLoader())
{
Assembly a = tl.LoadFromAssemblyPath(typeof(TopLevelType).Assembly.Location);
Assert.Throws <NotSupportedException>(() => a.CodeBase);
Assert.Throws <NotSupportedException>(() => a.EscapedCodeBase);
Assert.Throws <NotSupportedException>(() => a.GetObjectData(null, default));
Assert.Throws <NotSupportedException>(() => a.GetSatelliteAssembly(null));
Assert.Throws <NotSupportedException>(() => a.GetSatelliteAssembly(null, null));
foreach (TypeInfo t in a.DefinedTypes)
{
Assert.Throws <InvalidOperationException>(() => t.IsSecurityCritical);
Assert.Throws <InvalidOperationException>(() => t.IsSecuritySafeCritical);
Assert.Throws <InvalidOperationException>(() => t.IsSecurityTransparent);
foreach (MemberInfo mem in t.GetMember("*", BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance | BindingFlags.Static | BindingFlags.DeclaredOnly))
{
ICustomAttributeProvider icp = mem;
Assert.Throws <InvalidOperationException>(() => icp.GetCustomAttributes(inherit: false));
Assert.Throws <InvalidOperationException>(() => icp.GetCustomAttributes(null, inherit: false));
Assert.Throws <InvalidOperationException>(() => icp.IsDefined(null, inherit: false));
if (mem is ConstructorInfo c)
{
Assert.Throws <InvalidOperationException>(() => c.Invoke(Array.Empty <object>()));
Assert.Throws <InvalidOperationException>(() => c.Invoke(default(BindingFlags), null, Array.Empty <object>(), null));
Assert.Throws <InvalidOperationException>(() => c.Invoke(null, Array.Empty <object>()));
Assert.Throws <InvalidOperationException>(() => c.Invoke(null, default(BindingFlags), null, Array.Empty <object>(), null));
Assert.Throws <InvalidOperationException>(() => c.MethodHandle);
Assert.Throws <InvalidOperationException>(() => c.IsSecurityCritical);
Assert.Throws <InvalidOperationException>(() => c.IsSecuritySafeCritical);
Assert.Throws <InvalidOperationException>(() => c.IsSecurityTransparent);
}
if (mem is EventInfo e)
{
Assert.Throws <InvalidOperationException>(() => e.AddEventHandler(null, null));
Assert.Throws <InvalidOperationException>(() => e.RemoveEventHandler(null, null));
}
if (mem is FieldInfo f)
{
Assert.Throws <InvalidOperationException>(() => f.FieldHandle);
Assert.Throws <InvalidOperationException>(() => f.GetValue(null));
Assert.Throws <InvalidOperationException>(() => f.GetValueDirect(default));
public static void CoreGetTypeCacheCoverage2()
{
using (TypeLoader tl = new TypeLoader())
{
Assembly a = tl.LoadFromAssemblyPath(typeof(SampleMetadata.NS0.SameNamedType).Assembly.Location);
// Create big hash collisions in GetTypeCoreCache.
for (int i = 0; i < 16; i++)
{
string ns = "SampleMetadata.NS" + i;
string name = "SameNamedType";
string fullName = ns + "." + name;
Type t = a.GetType(fullName, throwOnError: true);
Assert.Equal(fullName, t.FullName);
}
}
}
public static void LoadMultiModuleFromDisk_GetModuleNull()
{
using (TempDirectory td = new TempDirectory())
{
string assemblyPath = Path.Combine(td.Path, "MultiModule.dll");
string bobNetModulePath = Path.Combine(td.Path, "Bob.netmodule");
File.WriteAllBytes(assemblyPath, TestData.s_MultiModuleDllImage);
File.WriteAllBytes(bobNetModulePath, TestData.s_JoeNetModuleImage); // Note: ScopeName ("Joe") intentionally different from manifest name ("Bob")
using (TypeLoader tl = new TypeLoader())
{
Assembly a = tl.LoadFromAssemblyPath(assemblyPath);
Assert.Throws <ArgumentNullException>(() => a.GetModule(null));
}
}
}
public static void ModuleGetTypesReturnsNewObjectEachType()
{
using (TempDirectory td = new TempDirectory())
{
string assemblyPath = Path.Combine(td.Path, "MultiModule.dll");
string bobNetModulePath = Path.Combine(td.Path, "Bob.netmodule");
File.WriteAllBytes(assemblyPath, TestData.s_MultiModuleDllImage);
File.WriteAllBytes(bobNetModulePath, TestData.s_JoeNetModuleImage); // Note: ScopeName ("Joe") intentionally different from manifest name ("Bob")
using (TypeLoader tl = new TypeLoader())
{
Assembly a = tl.LoadFromAssemblyPath(assemblyPath);
TestUtils.AssertNewObjectReturnedEachTime(() => a.ManifestModule.GetTypes());
}
}
}
public static void ResourceOnlyModules()
{
using (TempDirectory td = new TempDirectory())
{
string assemblyPath = Path.Combine(td.Path, "n.dll");
string myRes1Path = Path.Combine(td.Path, "MyRes1");
string myRes2Path = Path.Combine(td.Path, "MyRes2");
string myRes3Path = Path.Combine(td.Path, "MyRes3");
File.WriteAllBytes(assemblyPath, TestData.s_AssemblyWithResourcesInManifestFilesImage);
File.WriteAllBytes(myRes1Path, TestData.s_MyRes1);
File.WriteAllBytes(myRes2Path, TestData.s_MyRes2);
File.WriteAllBytes(myRes3Path, TestData.s_MyRes3);
using (TypeLoader tl = new TypeLoader())
{
Assembly a = tl.LoadFromAssemblyPath(assemblyPath);
Module[] modules1 = a.GetModules(getResourceModules: false);
Assert.Equal <Module>(new Module[] { a.ManifestModule }, modules1);
Module[] modules2 = a.GetModules(getResourceModules: true);
Assert.Equal(4, modules2.Length);
Module m = a.GetModule("MyRes2");
Assert.NotNull(m);
Assert.True(m.IsResource());
Assert.Throws <InvalidOperationException>(() => m.ModuleVersionId);
Assert.Equal(0, m.MetadataToken);
Assert.Equal("MyRes2", m.ScopeName);
Assert.Equal("MyRes2", m.Name);
Assert.Equal(myRes2Path, m.FullyQualifiedName);
m.GetPEKind(out PortableExecutableKinds peKind, out ImageFileMachine machine);
Assert.Equal(PortableExecutableKinds.NotAPortableExecutableImage, peKind);
Assert.Equal(default(ImageFileMachine), machine);
Assert.True(!m.GetCustomAttributesData().Any());
const BindingFlags bf = BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance | BindingFlags.Static;
Assert.Null(m.GetField("ANY", bf));
Assert.Null(m.GetMethod("ANY"));
Assert.True(!m.GetFields(bf).Any());
Assert.True(!m.GetMethods(bf).Any());
Assert.True(!m.GetTypes().Any());
}
}
}
public static void LoadMultiModuleFromDisk_GetModuleManifest()
{
using (TempDirectory td = new TempDirectory())
{
string assemblyPath = Path.Combine(td.Path, "MultiModule.dll");
string bobNetModulePath = Path.Combine(td.Path, "Bob.netmodule");
File.WriteAllBytes(assemblyPath, TestData.s_MultiModuleDllImage);
File.WriteAllBytes(bobNetModulePath, TestData.s_JoeNetModuleImage); // Note: ScopeName ("Joe") intentionally different from manifest name ("Bob")
using (TypeLoader tl = new TypeLoader())
{
Assembly a = tl.LoadFromAssemblyPath(assemblyPath);
Module m = a.GetModule("Main.dll");
Assert.Equal(a.ManifestModule, m);
}
}
}
public static void MultiModule_AssemblyDefinedTypes()
{
using (TempDirectory td = new TempDirectory())
{
string assemblyPath = Path.Combine(td.Path, "MultiModule.dll");
string bobNetModulePath = Path.Combine(td.Path, "Bob.netmodule");
File.WriteAllBytes(assemblyPath, TestData.s_MultiModuleDllImage);
File.WriteAllBytes(bobNetModulePath, TestData.s_JoeNetModuleImage); // Note: ScopeName ("Joe") intentionally different from manifest name ("Bob")
using (TypeLoader tl = new TypeLoader())
{
Assembly a = tl.LoadFromAssemblyPath(assemblyPath);
Type[] types = a.DefinedTypes.ToArray();
AssertContentsOfMultiModule(types, a);
}
}
}
public static void DisposingReleasesFileLocks()
{
using (TempFile tf = TempFile.Create(TestData.s_SimpleAssemblyImage))
{
using (TypeLoader tl = new TypeLoader())
{
tl.LoadFromAssemblyPath(tf.Path);
}
try
{
File.OpenWrite(tf.Path).Close();
}
catch (Exception)
{
Assert.True(false, "PE image file still locked after disposing TypeLoader: " + tf.Path);
}
}
}
public static void LoadFromFileSimpleAssembly()
{
using (TempFile tf = TempFile.Create(TestData.s_SimpleAssemblyImage))
{
using (TypeLoader tl = new TypeLoader())
{
Assembly a = tl.LoadFromAssemblyPath(tf.Path);
Assert.NotNull(a);
string fullName = a.GetName().FullName;
Assert.Equal(TestData.s_SimpleAssemblyName, fullName);
Guid mvid = a.ManifestModule.ModuleVersionId;
Assert.Equal(TestData.s_SimpleAssemblyMvid, mvid);
Assert.Equal(tf.Path, a.Location);
}
}
}
public static void CrossModuleTypeRefResolution()
{
using (TempDirectory td = new TempDirectory())
{
string assemblyPath = Path.Combine(td.Path, "MultiModule.dll");
string bobNetModulePath = Path.Combine(td.Path, "Bob.netmodule");
File.WriteAllBytes(assemblyPath, TestData.s_MultiModuleDllImage);
File.WriteAllBytes(bobNetModulePath, TestData.s_JoeNetModuleImage); // Note: ScopeName ("Joe") intentionally different from manifest name ("Bob")
using (TypeLoader tl = new TypeLoader())
{
Assembly a = tl.LoadFromAssemblyPath(assemblyPath);
Module bob = a.GetModule("Bob.netmodule");
Type mainType1 = a.ManifestModule.GetType("MainType1", throwOnError: true, ignoreCase: false);
Type baseType = mainType1.BaseType;
Assert.Equal("JoeType1", baseType.FullName);
Assert.Equal(bob, baseType.Module);
}
}
}
public static void LoadMultiModuleFromDisk_GetModuleCaseInsensitive()
{
using (TempDirectory td = new TempDirectory())
{
string assemblyPath = Path.Combine(td.Path, "MultiModule.dll");
string bobNetModulePath = Path.Combine(td.Path, "Bob.netmodule");
File.WriteAllBytes(assemblyPath, TestData.s_MultiModuleDllImage);
File.WriteAllBytes(bobNetModulePath, TestData.s_JoeNetModuleImage); // Note: ScopeName ("Joe") intentionally different from manifest name ("Bob")
using (TypeLoader tl = new TypeLoader())
{
Assembly a = tl.LoadFromAssemblyPath(assemblyPath);
Module m = a.GetModule("bOB.nEtmODule");
Assert.Equal(a, m.Assembly);
Assert.Equal(bobNetModulePath, m.FullyQualifiedName);
Assert.Equal(Path.GetFileName(bobNetModulePath), m.Name);
Assert.Equal(TestData.s_JoeScopeName, m.ScopeName);
Assert.Equal(TestData.s_JoeNetModuleMvid, m.ModuleVersionId);
}
}
}
public static void MultiModule_GetModules(bool getResourceModules)
{
using (TempDirectory td = new TempDirectory())
{
string assemblyPath = Path.Combine(td.Path, "MultiModule.dll");
string bobNetModulePath = Path.Combine(td.Path, "Bob.netmodule");
File.WriteAllBytes(assemblyPath, TestData.s_MultiModuleDllImage);
File.WriteAllBytes(bobNetModulePath, TestData.s_JoeNetModuleImage); // Note: ScopeName ("Joe") intentionally different from manifest name ("Bob")
using (TypeLoader tl = new TypeLoader())
{
Assembly a = tl.LoadFromAssemblyPath(assemblyPath);
Module[] ms = a.GetModules(getResourceModules: getResourceModules);
Assert.Equal(2, ms.Length);
Module bob = a.GetModule("Bob.netmodule");
Assert.NotNull(bob);
Assert.Contains <Module>(a.ManifestModule, ms);
Assert.Contains <Module>(bob, ms);
}
}
}
public static void Scenario_EnumerateTypesAndMembers()
{
// Ensure you can do all this without resolving dependencies.
using (TypeLoader tl = new TypeLoader())
{
Assembly a = tl.LoadFromAssemblyPath(typeof(GenericClass1 <>).Assembly.Location);
foreach (TypeInfo t in a.DefinedTypes)
{
Console.WriteLine(t.FullName);
foreach (ConstructorInfo c in t.DeclaredConstructors)
{
Console.WriteLine(" " + c.ToString());
}
foreach (MethodInfo m in t.DeclaredMethods)
{
Console.WriteLine(" " + m.ToString());
}
foreach (PropertyInfo p in t.DeclaredProperties)
{
Console.WriteLine(" " + p.ToString());
}
foreach (FieldInfo f in t.DeclaredFields)
{
Console.WriteLine(" " + f.ToString());
}
foreach (EventInfo e in t.DeclaredEvents)
{
Console.WriteLine(" " + e.ToString());
}
}
}
}