public static void CustomName()
{
try
{
Console.WriteLine("CustomName()");
// ALC should be a concrete class
AssemblyLoadContext alc = new AssemblyLoadContext("CustomName");
Assert(PropertyAllContainsContext(alc));
Console.WriteLine(alc.Name);
Assert(alc.Name == "CustomName");
Console.WriteLine(alc.GetType().ToString());
Assert(alc.GetType().ToString() == "System.Runtime.Loader.AssemblyLoadContext");
Console.WriteLine(alc.ToString());
Assert(alc.ToString().Contains("\"CustomName"));
Assert(alc.ToString().Contains("\" System.Runtime.Loader.AssemblyLoadContext"));
Assert(alc.ToString().Contains(" #"));
}
catch (Exception e)
{
Assert(false, e.ToString());
}
}
public static void AssemblyLoadByteArrayName()
{
#if ReadAllBytes // System.IO.File.ReadAllBytes is not found when ReferenceSystemPrivateCoreLib is true
try
{
Console.WriteLine("AssemblyLoadByteArrayName()");
String path = typeof(Program).Assembly.Location;
Byte [] byteArray = System.IO.File.ReadAllBytes(path);
Assembly a = Assembly.Load(byteArray);
AssemblyLoadContext alc = AssemblyLoadContext.GetLoadContext(a);
Assert(PropertyAllContainsContext(alc));
Assert(AssembliesContainAssembly(alc, a));
Console.WriteLine(alc.Name);
Assert(alc.Name == "Assembly.Load(byte[], ...)");
Console.WriteLine(alc.GetType().ToString());
Assert(alc.GetType().ToString() == "System.Runtime.Loader.IndividualAssemblyLoadContext");
Console.WriteLine(alc.ToString());
Assert(alc.ToString().Contains("\"Default"));
Assert(alc.ToString().Contains("\" System.Runtime.Loader.IndividualAssemblyLoadContext"));
Assert(alc.ToString().Contains(" #"));
}
catch (Exception e)
{
Assert(false, e.ToString());
}
#endif
}
public static void CustomWOName()
{
try
{
Console.WriteLine("CustomWOName()");
// ALC should be a concrete class
AssemblyLoadContext alc = new My.CustomAssemblyLoadContext();
Assert(PropertyAllContainsContext(alc));
Console.WriteLine(alc.Name);
Assert(alc.Name == null);
Console.WriteLine(alc.GetType().ToString());
Assert(alc.GetType().ToString() == "My.CustomAssemblyLoadContext");
Console.WriteLine(alc.ToString());
Assert(alc.ToString().Contains("\"\" "));
Assert(alc.ToString().Contains("\" My.CustomAssemblyLoadContext"));
Assert(alc.ToString().Contains(" #"));
}
catch (Exception e)
{
Assert(false, e.ToString());
}
}
public static void DefaultName()
{
try
{
Console.WriteLine("DefaultName()");
AssemblyLoadContext alc = AssemblyLoadContext.Default;
Assert(alc == AssemblyLoadContext.GetLoadContext(typeof(Program).Assembly));
Assert(PropertyAllContainsContext(alc));
Assert(AssembliesContainAssembly(alc, typeof(Program).Assembly));
Console.WriteLine(alc.Name);
Assert(alc.Name == "Default");
Console.WriteLine(alc.GetType().ToString());
Assert(alc.GetType().ToString() == "System.Runtime.Loader.DefaultAssemblyLoadContext");
Console.WriteLine(alc.ToString());
Assert(alc.ToString().Contains("\"Default"));
Assert(alc.ToString().Contains("\" System.Runtime.Loader.DefaultAssemblyLoadContext"));
Assert(alc.ToString().Contains(" #"));
}
catch (Exception e)
{
Assert(false, e.ToString());
}
}
public static void AssemblyLoadFileName()
{
try
{
Console.WriteLine("AssemblyLoadFileName()");
String path = typeof(Program).Assembly.Location;
Assembly a = Assembly.LoadFile(path);
Assert(a != typeof(Program).Assembly);
AssemblyLoadContext alc = AssemblyLoadContext.GetLoadContext(a);
Assert(PropertyAllContainsContext(alc));
Assert(AssembliesContainAssembly(alc, a));
Assert(alc != AssemblyLoadContext.Default);
Console.WriteLine(alc.Name);
Assert(alc.Name == String.Format("Assembly.LoadFile({0})", path));
Console.WriteLine(alc.GetType().ToString());
Assert(alc.GetType().ToString() == "System.Runtime.Loader.IndividualAssemblyLoadContext");
Console.WriteLine(alc.ToString());
Assert(alc.ToString().Contains("\"" + String.Format("Assembly.LoadFile({0})", path)));
Assert(alc.ToString().Contains("\" System.Runtime.Loader.IndividualAssemblyLoadContext"));
Assert(alc.ToString().Contains(" #"));
}
catch (Exception e)
{
Assert(false, e.ToString());
}
}
static int TestExecuteInAppDomain(string assemblyPath, string typeName, string methodName, string argument, int expectedHResult, int expectedResult)
{
bool passed = true;
try
{
int result = 0;
int hresult = NativeMethods.CallExecuteInDefaultAppDomain(assemblyPath, typeName, methodName, argument, ref result);
if (hresult != expectedHResult)
{
Console.WriteLine($"Bad HRESULT: expected {expectedHResult:X} actual {hresult:X}");
passed = false;
}
else if (result != expectedResult)
{
Console.WriteLine($"Bad result: expected {expectedResult} actual {result}");
passed = false;
}
}
catch (Exception e)
{
Console.WriteLine($"Unexpected exception: {e}");
passed = false;
}
return(passed ? 0 : 1);
}
public static void Assert(bool value, string message = "none")
{
if (!value)
{
Console.WriteLine("FAIL! " + message);
passed = false;
}
}
private static int NoInline_NoGCTransition(int expected)
{
Console.WriteLine($"{nameof(NoInline_NoGCTransition)} ({expected}) ...");
int n;
SuppressGCTransitionNative.NextUInt_NoInline_NoGCTransition(&n);
Assert.AreEqual(expected, n);
return(n + 1);
}
public bool IsInstanceOfInterface(RuntimeTypeHandle interfaceType, out Exception castError)
{
Console.WriteLine(String.Format("IsInstanceOfInterface has been called for type {0}", Type.GetTypeFromHandle(interfaceType)));
if (_interface2impl == null)
{
castError = new CastableException();
return(false);
}
castError = null;
return(_interface2impl.ContainsKey(Type.GetTypeFromHandle(interfaceType)));
}
public static void NegativeTest_NonBlittable()
{
// Try invoking method directly
try
{
Func <bool, int> invoker = CallbackMethodNonBlitabble;
invoker(true);
}
catch (Exception)
{
Console.WriteLine(":bla");
}
}
private static int CallAsFunctionPointer(int expected)
{
Console.WriteLine($"{nameof(CallAsFunctionPointer)} ({expected}) ...");
IntPtr fptr = SuppressGCTransitionNative.GetNextUIntFunctionPointer();
int n = 0;
int * pn = &n;
object boxedN = Pointer.Box(pn, typeof(int *));
MethodInfo callNextUInt = typeof(FunctionPointer).GetMethod("Call_NextUInt");
callNextUInt.Invoke(null, new object[] { fptr, boxedN });
Assert.AreEqual(expected, n);
return(n + 1);
}
static bool EXPECT(TestResult actualValue, TestResult expectedValue = TestResult.Success)
{
if (actualValue == expectedValue)
{
if (Verbose)
{
Console.WriteLine(String.Format("{0} : {1} : [OK]", CurrentTest, actualValue));
}
return(true);
}
else
{
Console.WriteLine(String.Format(" {0} : {1} : [FAIL]", CurrentTest, actualValue));
return(false);
}
}
private static int Mixed_TightLoop(int expected)
{
Console.WriteLine($"{nameof(Mixed_TightLoop)} ({expected}) ...");
int n = 0;
int count = 0x100;
for (int i = 0; i < count; ++i)
{
SuppressGCTransitionNative.NextUInt_Inline_NoGCTransition(&n);
}
// Use the non-optimized version at the end so a GC poll is not
// inserted here as well.
SuppressGCTransitionNative.NextUInt_NoInline_GCTransition(&n);
Assert.AreEqual(expected + count, n);
return(n + 1);
}
public static void NegativeTest_ViaCalli()
{
Console.WriteLine($"{nameof(NativeCallableAttribute)} function via calli instruction. The CLR _will_ crash.");
/*
* void TestNativeCallableViaCalli()
* {
* .locals init (native int V_0)
* IL_0000: nop
* IL_0001: ldftn void CallbackViaCalli(int32)
* IL_0007: stloc.0
*
* IL_0008: ldc.i4 1234
* IL_000d: ldloc.0
* IL_000e: calli void(int32)
*
* IL_0013: nop
* IL_0014: ret
* }
*/
DynamicMethod testNativeCallable = new DynamicMethod("TestNativeCallableViaCalli", null, null, typeof(Program).Module);
ILGenerator il = testNativeCallable.GetILGenerator();
il.DeclareLocal(typeof(IntPtr));
il.Emit(OpCodes.Nop);
// Get native function pointer of the callback
il.Emit(OpCodes.Ldftn, typeof(Program).GetMethod(nameof(CallbackViaCalli)));
il.Emit(OpCodes.Stloc_0);
il.Emit(OpCodes.Ldc_I4, 1234);
il.Emit(OpCodes.Ldloc_0);
il.EmitCalli(OpCodes.Calli, CallingConventions.Standard, null, new Type[] { typeof(int) }, null);
il.Emit(OpCodes.Nop);
il.Emit(OpCodes.Ret);
NativeMethodInvoker testNativeMethod = (NativeMethodInvoker)testNativeCallable.CreateDelegate(typeof(NativeMethodInvoker));
// It is not possible to catch the resulting ExecutionEngineException exception.
// To observe the crashing behavior set a breakpoint in the ReversePInvokeBadTransition() function
// located in src/vm/dllimportcallback.cpp.
testNativeMethod();
}
public static void NativeCallableViaUnmanagedCalli()
{
Console.WriteLine($"{nameof(NativeCallableAttribute)} function via calli instruction with unmanaged calling convention.");
/*
* void TestNativeCallableViaCalli()
* {
* .locals init (native int V_0)
* IL_0000: nop
* IL_0001: ldftn int CallbackViaUnmanagedCalli(int32)
* IL_0007: stloc.0
*
* IL_0008: ldc.i4 1234
* IL_000d: ldloc.0
* IL_000e: calli int32 stdcall(int32)
*
* IL_0014: ret
* }
*/
DynamicMethod testNativeCallable = new DynamicMethod("TestNativeCallableViaUnmanagedCalli", typeof(int), null, typeof(Program).Module);
ILGenerator il = testNativeCallable.GetILGenerator();
il.DeclareLocal(typeof(IntPtr));
il.Emit(OpCodes.Nop);
// Get native function pointer of the callback
il.Emit(OpCodes.Ldftn, typeof(Program).GetMethod(nameof(CallbackViaUnmanagedCalli)));
il.Emit(OpCodes.Stloc_0);
int n = 1234;
il.Emit(OpCodes.Ldc_I4, n);
il.Emit(OpCodes.Ldloc_0);
il.EmitCalli(OpCodes.Calli, CallingConvention.StdCall, typeof(int), new Type[] { typeof(int) });
il.Emit(OpCodes.Ret);
IntNativeMethodInvoker testNativeMethod = (IntNativeMethodInvoker)testNativeCallable.CreateDelegate(typeof(IntNativeMethodInvoker));
int expected = DoubleImpl(n);
Assert.AreEqual(expected, testNativeMethod());
}
public static void SetResolve()
{
Console.WriteLine("Setting PInvoke Resolver");
DllImportResolver resolver =
(string libraryName, Assembly asm, DllImportSearchPath? dllImportSearchPath) =>
{
if (dllImportSearchPath != DllImportSearchPath.System32)
{
Console.WriteLine($"Unexpected dllImportSearchPath: {dllImportSearchPath.ToString()}");
throw new ArgumentException();
}
return(NativeLibrary.Load("ResolveLib", asm, null));
};
NativeLibrary.SetDllImportResolver(
Assembly.GetExecutingAssembly(),
resolver);
}
public static int Main()
{
try
{
int n = 1;
n = Inline_NoGCTransition(n);
n = Inline_GCTransition(n);
n = NoInline_NoGCTransition(n);
n = NoInline_GCTransition(n);
n = Mixed(n);
n = Mixed_TightLoop(n);
n = CallAsFunctionPointer(n);
}
catch (Exception e)
{
Console.WriteLine(e.ToString());
return(101);
}
return(100);
}
public static void TestNativeCallableValid()
{
Console.WriteLine($"{nameof(NativeCallableAttribute)} function");
/*
* void TestNativeCallable()
* {
* .locals init ([0] native int ptr)
* IL_0000: nop
* IL_0001: ldftn int32 ManagedDoubleCallback(int32)
* IL_0007: stloc.0
*
* IL_0008: ldloc.0
* IL_0009: ldc.i4 <n> local
* IL_000e: call bool NativeMethods::CallManagedProc(native int, int)
*
* IL_0013: ret
* }
*/
DynamicMethod testNativeCallable = new DynamicMethod("TestNativeCallable", typeof(int), null, typeof(Program).Module);
ILGenerator il = testNativeCallable.GetILGenerator();
il.DeclareLocal(typeof(IntPtr));
il.Emit(OpCodes.Nop);
// Get native function pointer of the callback
il.Emit(OpCodes.Ldftn, typeof(Program).GetMethod(nameof(ManagedDoubleCallback)));
il.Emit(OpCodes.Stloc_0);
il.Emit(OpCodes.Ldloc_0);
int n = 12345;
il.Emit(OpCodes.Ldc_I4, n);
il.Emit(OpCodes.Call, typeof(NativeMethods).GetMethod("CallManagedProc"));
il.Emit(OpCodes.Ret);
var testNativeMethod = (IntNativeMethodInvoker)testNativeCallable.CreateDelegate(typeof(IntNativeMethodInvoker));
int expected = DoubleImpl(n);
Assert.AreEqual(expected, testNativeMethod());
}
public static int Main(string[] args)
{
try
{
TestNativeCallableValid();
NegativeTest_ViaDelegate();
NegativeTest_NonBlittable();
NegativeTest_GenericArguments();
if (args.Length != 0 && args[0].Equals("calli"))
{
NegativeTest_ViaCalli();
}
}
catch (Exception e)
{
Console.WriteLine($"Test Failure: {e}");
return(101);
}
return(100);
}
public static void NegativeTest_ViaDelegate()
{
Console.WriteLine($"{nameof(NativeCallableAttribute)} function as delegate");
// Try invoking method directly
try
{
CallAsDelegate();
Assert.Fail($"Invalid to call {nameof(ManagedDoubleCallback)} as delegate");
}
catch (NotSupportedException)
{
}
// Local function to delay exception thrown during JIT
void CallAsDelegate()
{
Func <int, int> invoker = ManagedDoubleCallback;
invoker(0);
}
}
public static int Main()
{
foreach (AssemblyLoadContext alc in AssemblyLoadContext.All)
{
Console.WriteLine(alc.ToString());
foreach (Assembly a in alc.Assemblies)
{
Console.WriteLine(a.ToString());
}
}
DefaultName();
AssemblyLoadFileName();
AssemblyLoadByteArrayName();
CustomWOName();
CustomName();
foreach (AssemblyLoadContext alc in AssemblyLoadContext.All)
{
Console.WriteLine(alc.ToString());
foreach (Assembly a in alc.Assemblies)
{
Console.WriteLine(a.ToString());
}
}
if (passed)
{
Console.WriteLine("Test PASSED!");
return(100);
}
else
{
Console.WriteLine("Test FAILED!");
return(-1);
}
}
public static void NegativeTest_NonBlittable()
{
Console.WriteLine($"{nameof(NativeCallableAttribute)} function with non-blittable arguments");
/*
* void TestNativeCallableNonBlittable()
* {
* .locals init ([0] native int ptr)
* IL_0000: nop
* IL_0001: ldftn int32 CallbackMethodNonBlittable(bool)
* IL_0007: stloc.0
* IL_0008: ret
* }
*/
DynamicMethod testNativeCallable = new DynamicMethod("TestNativeCallableNonBlittable", null, null, typeof(Program).Module);
ILGenerator il = testNativeCallable.GetILGenerator();
il.DeclareLocal(typeof(IntPtr));
il.Emit(OpCodes.Nop);
// Get native function pointer of the callback
il.Emit(OpCodes.Ldftn, typeof(Program).GetMethod(nameof(CallbackMethodNonBlittable)));
il.Emit(OpCodes.Stloc_0);
il.Emit(OpCodes.Ret);
var testNativeMethod = (NativeMethodInvoker)testNativeCallable.CreateDelegate(typeof(NativeMethodInvoker));
// Try invoking method
try
{
testNativeMethod();
Assert.Fail($"Function {nameof(CallbackMethodNonBlittable)} has non-blittable types");
}
catch (NotSupportedException)
{
}
}
public static int Main()
{
new Thread(Collector).Start();
for (int i = 0; i < s_LoopCounter; i++)
{
try
{
NativeSum(10, 10);
s_WrongPInvokesExecuted++;
}
catch (DllNotFoundException) { s_CatchCalled++; }
try { DoCall(); }
catch (DllNotFoundException) { s_CatchCalled++; }
try { DoCallTryFinally(); }
catch (DllNotFoundException) { s_CatchCalled++; }
try { DoCallTryCatch(true); }
catch (ArgumentException) { s_OtherExceptionCatchCalled++; }
try { DoCallTryRethrowInCatch(); }
catch (DllNotFoundException) { s_CatchCalled++; }
try { DoCallTryRethrowDifferentExceptionInCatch(); }
catch (InvalidOperationException) { s_OtherExceptionCatchCalled++; }
ManualRaiseException();
}
SetResolve();
for (int i = 0; i < s_LoopCounter; i++)
{
var a = NativeSum(10, 10);
var b = NativeSum(10, 10);
s_PInvokesExecuted += (a == b && a == 20)? 2 : 0;
try { DoCallTryCatch(false); }
catch (ArgumentException) { s_OtherExceptionCatchCalled++; }
ManualRaiseException();
}
s_RunGC = false;
if (s_FinallyCalled == s_LoopCounter &&
s_CatchCalled == (s_LoopCounter * 7) &&
s_OtherExceptionCatchCalled == (s_LoopCounter * 3) &&
s_WrongPInvokesExecuted == 0 &&
s_PInvokesExecuted == (s_LoopCounter * 3) &&
s_SEHExceptionCatchCalled == (s_LoopCounter * 2))
{
Console.WriteLine("PASS");
return(100);
}
Console.WriteLine("s_FinallyCalled = " + s_FinallyCalled);
Console.WriteLine("s_CatchCalled = " + s_CatchCalled);
Console.WriteLine("s_OtherExceptionCatchCalled = " + s_OtherExceptionCatchCalled);
Console.WriteLine("s_SEHExceptionCatchCalled = " + s_SEHExceptionCatchCalled);
Console.WriteLine("s_WrongPInvokesExecuted = " + s_WrongPInvokesExecuted);
Console.WriteLine("s_PInvokesExecuted = " + s_PInvokesExecuted);
return(-1);
}
public T ReturnArg(T t)
{
Console.WriteLine(String.Format("Generic ReturnArg has been called. My type is {0}", GetType()));
return(t);
}
public static int Main()
{
bool success = true;
Assembly assembly = System.Reflection.Assembly.GetExecutingAssembly();
string testBinDir = Path.GetDirectoryName(assembly.Location);
string libName;
IntPtr handle;
try
{
// -----------------------------------------------
// Simple LoadLibrary() API Tests
// -----------------------------------------------
// Calls on correct full-path to native lib
libName = Path.Combine(testBinDir, GetNativeLibraryName());
success &= EXPECT(LoadLibrarySimple(libName));
success &= EXPECT(TryLoadLibrarySimple(libName));
// Calls on non-existant file
libName = Path.Combine(testBinDir, "notfound");
success &= EXPECT(LoadLibrarySimple(libName), TestResult.DllNotFound);
success &= EXPECT(TryLoadLibrarySimple(libName), TestResult.ReturnFailure);
// Calls on an invalid file
libName = Path.Combine(testBinDir, "NativeLibrary.cpp");
success &= EXPECT(LoadLibrarySimple(libName),
(TestLibrary.Utilities.IsWindows) ? TestResult.BadImage : TestResult.DllNotFound);
success &= EXPECT(TryLoadLibrarySimple(libName), TestResult.ReturnFailure);
// Calls on null input
libName = null;
success &= EXPECT(LoadLibrarySimple(libName), TestResult.ArgumentNull);
success &= EXPECT(TryLoadLibrarySimple(libName), TestResult.ArgumentNull);
// -----------------------------------------------
// Advanced LoadLibrary() API Tests
// -----------------------------------------------
// Advanced LoadLibrary() API Tests
// Calls on correct full-path to native lib
libName = Path.Combine(testBinDir, GetNativeLibraryName());
success &= EXPECT(LoadLibraryAdvanced(libName, assembly, null));
success &= EXPECT(TryLoadLibraryAdvanced(libName, assembly, null));
// Calls on non-existant file
libName = Path.Combine(testBinDir, "notfound");
success &= EXPECT(LoadLibraryAdvanced(libName, assembly, null), TestResult.DllNotFound);
success &= EXPECT(TryLoadLibraryAdvanced(libName, assembly, null), TestResult.ReturnFailure);
// Calls on an invalid file
libName = Path.Combine(testBinDir, "NativeLibrary.cpp");
// The VM can only distinguish BadImageFormatException from DllNotFoundException on Windows.
success &= EXPECT(LoadLibraryAdvanced(libName, assembly, null),
(TestLibrary.Utilities.IsWindows) ? TestResult.BadImage : TestResult.DllNotFound);
success &= EXPECT(TryLoadLibraryAdvanced(libName, assembly, null), TestResult.ReturnFailure);
// Calls on just Native Library name
libName = GetNativeLibraryPlainName();
success &= EXPECT(LoadLibraryAdvanced(libName, assembly, null));
success &= EXPECT(TryLoadLibraryAdvanced(libName, assembly, null));
// Calls on Native Library name with correct prefix-suffix
libName = GetNativeLibraryName();
success &= EXPECT(LoadLibraryAdvanced(libName, assembly, null));
success &= EXPECT(TryLoadLibraryAdvanced(libName, assembly, null));
// Calls on full path without prefix-siffix
libName = Path.Combine(testBinDir, GetNativeLibraryPlainName());
// DllImport doesn't add a prefix if the name is preceeded by a path specification.
// Windows only needs a suffix, but Linux and Mac need both prefix and suffix
success &= EXPECT(LoadLibraryAdvanced(libName, assembly, null),
(TestLibrary.Utilities.IsWindows) ? TestResult.Success : TestResult.DllNotFound);
success &= EXPECT(TryLoadLibraryAdvanced(libName, assembly, null),
(TestLibrary.Utilities.IsWindows) ? TestResult.Success : TestResult.ReturnFailure);
if (TestLibrary.Utilities.IsWindows)
{
libName = GetWin32LibName();
// Calls on a valid library from System32 directory
success &= EXPECT(LoadLibraryAdvanced(libName, assembly, DllImportSearchPath.System32));
success &= EXPECT(TryLoadLibraryAdvanced(libName, assembly, DllImportSearchPath.System32));
// Calls on a valid library from application directory
success &= EXPECT(LoadLibraryAdvanced(libName, assembly, DllImportSearchPath.ApplicationDirectory), TestResult.DllNotFound);
success &= EXPECT(TryLoadLibraryAdvanced(libName, assembly, DllImportSearchPath.ApplicationDirectory), TestResult.ReturnFailure);
}
// Calls with null libName input
success &= EXPECT(LoadLibraryAdvanced(null, assembly, null), TestResult.ArgumentNull);
success &= EXPECT(TryLoadLibraryAdvanced(null, assembly, null), TestResult.ArgumentNull);
// Calls with null assembly
libName = GetNativeLibraryPlainName();
success &= EXPECT(LoadLibraryAdvanced(libName, null, null), TestResult.ArgumentNull);
success &= EXPECT(TryLoadLibraryAdvanced(libName, null, null), TestResult.ArgumentNull);
// Ensure that a lib is not picked up from current directory when
// a different full-path is specified.
libName = Path.Combine(testBinDir, Path.Combine("lib", GetNativeLibraryPlainName()));
success &= EXPECT(LoadLibraryAdvanced(libName, assembly, DllImportSearchPath.AssemblyDirectory), TestResult.DllNotFound);
success &= EXPECT(TryLoadLibraryAdvanced(libName, assembly, DllImportSearchPath.AssemblyDirectory), TestResult.ReturnFailure);
// -----------------------------------------------
// FreeLibrary Tests
// -----------------------------------------------
libName = Path.Combine(testBinDir, GetNativeLibraryName());
handle = NativeLibrary.Load(libName);
// Valid Free
success &= EXPECT(FreeLibrary(handle));
// Double Free
success &= EXPECT(FreeLibrary(handle), TestResult.InvalidOperation);
// Null Free
success &= EXPECT(FreeLibrary(IntPtr.Zero));
// -----------------------------------------------
// GetLibraryExport Tests
// -----------------------------------------------
libName = Path.Combine(testBinDir, GetNativeLibraryName());
handle = NativeLibrary.Load(libName);
// Valid Call (with some hard-coded name mangling)
success &= EXPECT(GetLibraryExport(handle, TestLibrary.Utilities.IsX86 ? "_NativeSum@8" : "NativeSum"));
success &= EXPECT(TryGetLibraryExport(handle, TestLibrary.Utilities.IsX86 ? "_NativeSum@8" : "NativeSum"));
// Call with null handle
success &= EXPECT(GetLibraryExport(IntPtr.Zero, "NativeSum"), TestResult.ArgumentNull);
success &= EXPECT(TryGetLibraryExport(IntPtr.Zero, "NativeSum"), TestResult.ArgumentNull);
// Call with null string
success &= EXPECT(GetLibraryExport(handle, null), TestResult.ArgumentNull);
success &= EXPECT(TryGetLibraryExport(handle, null), TestResult.ArgumentNull);
// Call with wrong string
success &= EXPECT(GetLibraryExport(handle, "NonNativeSum"), TestResult.EntryPointNotFound);
success &= EXPECT(TryGetLibraryExport(handle, "NonNativeSum"), TestResult.ReturnFailure);
NativeLibrary.Free(handle);
}
catch (Exception e)
{
// Catch any exceptions in NativeLibrary calls directly within this function.
// These calls are used to setup the environment for tests that follow, and are not expected to fail.
// If they do fail (ex: incorrect build environment) fail with an error code, rather than segmentation fault.
Console.WriteLine(String.Format("Unhandled exception {0}", e));
success = false;
}
return((success) ? 100 : -100);
}
public IRetThis ReturnThis()
{
Console.WriteLine("RetThis has been called.");
return(this);
}
public Type GetMyType()
{
Console.WriteLine(String.Format("GetMyType has been called. My type is {0}", GetType()));
return(GetType());
}
public RuntimeTypeHandle GetImplType(RuntimeTypeHandle interfaceType)
{
Console.WriteLine(String.Format("GetImplType has been called for type {0}", Type.GetTypeFromHandle(interfaceType)));
return(_interface2impl[Type.GetTypeFromHandle(interfaceType)].TypeHandle);
}
public int InnocentMethod()
{
Console.WriteLine(String.Format("InnocentMethod has been called. My type is {0}", GetType()));
return(3);
}
public static int Main()
{
// Events on the Default Load Context
try
{
AssemblyLoadContext.Default.ResolvingUnmanagedDll += HandlerFail;
NativeSum(10, 10);
}
catch (DllNotFoundException e)
{
if (HandlerTracker != 0)
{
Console.WriteLine("Event Handlers not called as expected");
return(101);
}
}
catch (Exception e)
{
Console.WriteLine($"Unexpected exception: {e.Message}");
return(102);
}
try
{
AssemblyLoadContext.Default.ResolvingUnmanagedDll += HandlerPass;
if (NativeSum(10, 10) != 20)
{
Console.WriteLine("Unexpected ReturnValue from NativeSum()");
return(103);
}
if (HandlerTracker != 0)
{
Console.WriteLine("Event Handlers not called as expected");
return(104);
}
}
catch (Exception e)
{
Console.WriteLine($"Unexpected exception: {e.Message}");
return(105);
}
// Events on a Custom Load Context
try
{
string currentDir = Path.GetDirectoryName(Assembly.GetExecutingAssembly().Location);
string testAsmDir = Path.Combine(currentDir, "..", "TestAsm", "TestAsm");
ALC alc = new ALC();
alc.ResolvingUnmanagedDll += HandlerPass;
var assembly = alc.LoadFromAssemblyPath(Path.Combine(testAsmDir, "TestAsm.dll"));
var type = assembly.GetType("TestAsm");
var method = type.GetMethod("Sum");
int value = (int)method.Invoke(null, new object[] { 10, 10 });
if (value != 20)
{
Console.WriteLine("Unexpected ReturnValue from TestAsm.Sum()");
return(106);
}
if (HandlerTracker != 1)
{
Console.WriteLine("Event Handlers not called as expected");
return(107);
}
}
catch (Exception e)
{
Console.WriteLine($"Unexpected exception: {e.Message}");
return(108);
}
return(100);
}