public void GetProcuedure_Generic_NameIsNull_ThrowsArgumentNullException()
{
// Arrange
var mock = Substitute.For<ILibraryProcProvider>();
var lib = new TestLibrary(new IntPtr(1), mock, null);
// Act
var ex = Assert.Throws<ArgumentNullException>(() => lib.GetProcedure<Action>(null));
// Assert
Assert.AreEqual("name", ex.ParamName);
}
public void GetProcuedure_NonGeneric_DelegateTypeIsNull_ThrowsArgumentNullException()
{
// Arrange
var mock = Substitute.For <ILibraryProcProvider>();
var lib = new TestLibrary(new IntPtr(1), mock, null);
// Act
var ex = Assert.Throws <ArgumentNullException>(() => lib.GetProcedure(null, "Foo"));
// Assert
Assert.AreEqual("delegateType", ex.ParamName);
}
public void GetProcuedure_Generic_DelegateTypeIsNotADelegate_ThrowsArgumentNullException()
{
// Arrange
var mock = Substitute.For<ILibraryProcProvider>();
var lib = new TestLibrary(new IntPtr(1), mock, null);
// Act
var ex = Assert.Throws<ArgumentException>(() => lib.GetProcedure<string>("Foo"));
// Assert
Assert.AreEqual("TDelegate", ex.ParamName);
Assert.That(ex.Message.StartsWith("TDelegate must be a delegate...type..."));
}
public void GetProcuedure_NonGeneric_DelegateTypeIsNotADelegate_ThrowsArgumentNullException()
{
// Arrange
var mock = Substitute.For <ILibraryProcProvider>();
var lib = new TestLibrary(new IntPtr(1), mock, null);
// Act
var ex = Assert.Throws <ArgumentException>(() => lib.GetProcedure(typeof(string), "Foo"));
// Assert
Assert.AreEqual("delegateType", ex.ParamName);
Assert.That(ex.Message.StartsWith("DelegateType must be a delegate...type..."));
}
public void GetProcuedure_Generic_ReturnedProcAddressIsOk_ReturnsDelegate()
{
// Arrange
var mock = Substitute.For <ILibraryProcProvider>();
mock.GetProc(Arg.Any <IntPtr>(), Arg.Any <string>()).Returns(new IntPtr(1));
mock.GetDelegateFromFunctionPointer(Arg.Any <IntPtr>(), Arg.Any <Type>())
.Returns(new Action(GetProcuedure_NonGeneric_DelegateTypeIsNotADelegate_ThrowsArgumentNullException));
var lib = new TestLibrary(new IntPtr(1), mock, null);
// Act
var result = lib.GetProcedure <Action>("Foo");
// Assert
Assert.IsNotNull(result);
}
public void GetProcuedure_Generic_ReturnedProcAddressIsNull_ReturnsNull()
{
// Arrange
var mock = Substitute.For<ILibraryProcProvider>();
mock.GetProc(Arg.Any<IntPtr>(), Arg.Any<string>()).Returns(IntPtr.Zero);
mock.GetDelegateFromFunctionPointer(Arg.Any<IntPtr>(), Arg.Any<Type>())
.Returns(new Action(GetProcuedure_NonGeneric_DelegateTypeIsNotADelegate_ThrowsArgumentNullException));
var lib = new TestLibrary(new IntPtr(1), mock, null);
// Act
var result = lib.GetProcedure<Action>("Foo");
// Assert
Assert.IsNull(result);
}