public void IntParameterAsInvalidXamlString()
{
var vm = new ViewModel();
var binding = new MethodBindingExtension(vm, nameof(ViewModel.IntParam), "5x");
TestHelper.RunMethodBinding(null, binding);
vm.Executed.ShouldBe(false);
TraceMessages.Count.ShouldBe(1);
TraceMessages[0].ShouldStartWith("testhost Warning: 0 : [MethodBindingExtension] Method 'IntParam' (target type 'Singulink.WPF.Data.Tests.ViewModel') parameter 1 (name: 'x', type: 'System.Int32') could not be assigned from XAML string argument '5x':");
}
public void IntParameterAsXamlString()
{
var vm = new ViewModel();
var binding = new MethodBindingExtension(nameof(ViewModel.IntParam), "5");
TestHelper.RunMethodBinding(vm, binding);
vm.Executed.ShouldBe(true);
vm.ParamType.ShouldBe(typeof(int));
TraceMessages.ShouldBeEmpty();
}
public void OverloadedNullableIntDoubleAsNull()
{
var vm = new ViewModel();
var binding = new MethodBindingExtension(nameof(ViewModel.OverloadedNullableIntDouble), null);
TestHelper.RunMethodBinding(vm, binding);
vm.Executed.ShouldBe(true);
vm.ParamType.ShouldBe(typeof(int?));
TraceMessages.ShouldBeEmpty();
}
public void OverloadedIntStringAsInt()
{
var vm = new ViewModel();
var binding = new MethodBindingExtension(nameof(ViewModel.OverloadedIntString), 5);
TestHelper.RunMethodBinding(vm, binding);
vm.Executed.ShouldBe(true);
vm.ParamType.ShouldBe(typeof(int));
TraceMessages.ShouldBeEmpty();
}
public void NullableIntParameterAsNullExtension()
{
var vm = new ViewModel();
var binding = new MethodBindingExtension(nameof(ViewModel.NullableIntParam), new NullExtension());
TestHelper.RunMethodBinding(vm, binding);
vm.Executed.ShouldBe(true);
vm.ParamType.ShouldBe(typeof(int?));
TraceMessages.ShouldBeEmpty();
}
public void OverloadedNullableIntDoubleAsString()
{
var vm = new ViewModel();
var binding = new MethodBindingExtension(vm, nameof(ViewModel.OverloadedNullableIntDouble), "5");
TestHelper.RunMethodBinding(null, binding);
vm.Executed.ShouldBe(false);
TraceMessages.ShouldBe(new[] {
"testhost Warning: 0 : [MethodBindingExtension] Could not find method 'OverloadedNullableIntDouble' (target type 'Singulink.WPF.Data.Tests.ViewModel') that accepts the provided arguments ('System.String').",
});
}
public void IntParameterAsNullExtension()
{
var vm = new ViewModel();
var binding = new MethodBindingExtension(vm, nameof(ViewModel.IntParam), new NullExtension());
TestHelper.RunMethodBinding(null, binding);
vm.Executed.ShouldBe(false);
TraceMessages.ShouldBe(new[] {
"testhost Warning: 0 : [MethodBindingExtension] Method 'IntParam' (target type 'Singulink.WPF.Data.Tests.ViewModel') parameter 1 (name: 'x', type: 'System.Int32') is not assignable to null.",
});
}
public void NullMethodName()
{
var vm = new ViewModel();
var binding = new MethodBindingExtension(vm, new NullExtension());
TestHelper.RunMethodBinding(null, binding);
binding = new MethodBindingExtension(vm, null);
TestHelper.RunMethodBinding(null, binding);
TraceMessages.ShouldBe(new[] {
"testhost Warning: 0 : [MethodBindingExtension] Method target type resolved to 'Singulink.WPF.Data.Tests.ViewModel', method name resolved to null.",
"testhost Warning: 0 : [MethodBindingExtension] Method target type resolved to 'Singulink.WPF.Data.Tests.ViewModel', method name resolved to null.",
});
}
public void MissingMethod()
{
var vm = new ViewModel();
var binding = new MethodBindingExtension(vm, "NonExistent");
TestHelper.RunMethodBinding(null, binding);
binding = new MethodBindingExtension(vm, "NonExistent", null);
TestHelper.RunMethodBinding(null, binding);
vm.Executed.ShouldBe(false);
TraceMessages.ShouldBe(new[] {
"testhost Warning: 0 : [MethodBindingExtension] Could not find parameterless method 'NonExistent' (target type 'Singulink.WPF.Data.Tests.ViewModel').",
"testhost Warning: 0 : [MethodBindingExtension] Could not find method 'NonExistent' (target type 'Singulink.WPF.Data.Tests.ViewModel') that accepts the provided arguments (null).",
});
}
