public void NullTarget()
{
var binding = new MethodBindingExtension(new NullExtension(), "SomeMethod");
TestHelper.RunMethodBinding(null, binding);
TraceMessages.ShouldBe(new[] {
"testhost Warning: 0 : [MethodBindingExtension] First method binding argument is required and cannot resolve to null - method name or method target expected.",
});
}
public void NullDataContext()
{
var binding = new MethodBindingExtension("SomeMethod");
TestHelper.RunMethodBinding(null, binding);
TraceMessages.ShouldBe(new[] {
"testhost Warning: 0 : [MethodBindingExtension] Null data context for method 'SomeMethod' on element 'TestElement' (type: 'System.Windows.FrameworkElement').",
});
}
public void NoParameters()
{
var vm = new ViewModel();
var binding = new MethodBindingExtension(vm, nameof(ViewModel.NoParameters));
TestHelper.RunMethodBinding(null, binding);
vm.Executed.ShouldBe(true);
TraceMessages.ShouldBeEmpty();
}
public void IntParameterAsXamlString()
{
var vm = new ViewModel();
var binding = new MethodBindingExtension(vm, nameof(ViewModel.IntParam), "5");
TestHelper.RunMethodBinding(null, binding);
vm.Executed.ShouldBe(true);
vm.ParamType.ShouldBe(typeof(int));
TraceMessages.ShouldBeEmpty();
}
public void OverloadedNullableIntDoubleAsNull()
{
var vm = new ViewModel();
var binding = new MethodBindingExtension(vm, nameof(ViewModel.OverloadedNullableIntDouble), null);
TestHelper.RunMethodBinding(null, binding);
vm.Executed.ShouldBe(true);
vm.ParamType.ShouldBe(typeof(int?));
TraceMessages.ShouldBeEmpty();
}
public void OverloadedIntStringAsInt()
{
var vm = new ViewModel();
var binding = new MethodBindingExtension(vm, nameof(ViewModel.OverloadedIntString), 5);
TestHelper.RunMethodBinding(null, 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).",
});
}
public int ClosestClassifier()
{
int [] errorScores = new int[3];
for (int n = 0; n <= 2; n++)
{
int currentError = 0;
for (int h = 0; h < 1023; h++)
{
currentError = currentError + Math.Abs(learnedHistograms[3][h] - learnedHistograms[n][h]);
}
errorScores[n] = currentError;
TraceMessages.AddMessage($"Comparison with case {n} yields error score of {currentError}");
}
int minIndex = Array.IndexOf(errorScores, errorScores.Min());
return(minIndex);
}
public void ShowHistogram(int classifier)
{
int[] histogramToShow;
if (classifier == -1)
{
histogramToShow = histogramToClassify;
}
else
{
histogramToShow = learnedHistograms[classifier];
}
TraceMessages.AddMessage($"Showing classifier for {classifier}");
for (int i = 0; i < histogramToShow.Length; i++)
{
if (histogramToShow[i] != 0)
{
TraceMessages.AddMessage($"{i} = {histogramToShow[i]}");
}
}
}