public async Task Create_NullableTypeMismatch_ThrowsExpectedError()
{
// Arrange
IBindingProvider product = new DataBindingProvider();
string parameterName = "p";
Type parameterType = typeof(int?);
BindingProviderContext context = CreateBindingContext(parameterName, parameterType);
// Act
IBinding binding = await product.TryCreateAsync(context);
// Assert
Assert.NotNull(binding);
var functionBindingContext = new FunctionBindingContext(Guid.NewGuid(), CancellationToken.None, null);
var valueBindingContext = new ValueBindingContext(functionBindingContext, CancellationToken.None);
var bindingData = new Dictionary <string, object>
{
{ "p", "123" }
};
var bindingContext = new BindingContext(valueBindingContext, bindingData);
var ex = await Assert.ThrowsAsync <InvalidOperationException>(async() =>
{
await binding.BindAsync(bindingContext);
});
Assert.Equal("Binding data for 'p' is not of expected type Nullable<Int32>.", ex.Message);
}
public async Task Create_HandlesNullableTypes()
{
// Arrange
IBindingProvider product = new DataBindingProvider();
string parameterName = "p";
Type parameterType = typeof(int?);
BindingProviderContext context = CreateBindingContext(parameterName, parameterType);
// Act
IBinding binding = await product.TryCreateAsync(context);
// Assert
Assert.NotNull(binding);
var functionBindingContext = new FunctionBindingContext(Guid.NewGuid(), CancellationToken.None, null);
var valueBindingContext = new ValueBindingContext(functionBindingContext, CancellationToken.None);
var bindingData = new Dictionary <string, object>
{
{ "p", 123 }
};
var bindingContext = new BindingContext(valueBindingContext, bindingData);
var valueProvider = await binding.BindAsync(bindingContext);
var value = valueProvider.GetValue();
Assert.Equal(123, value);
bindingData["p"] = null;
bindingContext = new BindingContext(valueBindingContext, bindingData);
valueProvider = await binding.BindAsync(bindingContext);
value = valueProvider.GetValue();
Assert.Null(value);
}
public void Create_ReturnsBinding_IfContainsResolvedGenericParameter()
{
// Arrange
IBindingProvider product = new DataBindingProvider();
string parameterName = "Parameter";
Type parameterType = typeof(IEnumerable <int>);
BindingProviderContext context = CreateBindingContext(parameterName, parameterType);
// Act
IBinding binding = product.TryCreateAsync(context).GetAwaiter().GetResult();
// Assert
Assert.NotNull(binding);
}
public void Create_ReturnsNull_IfByRefParameter()
{
// Arrange
IBindingProvider product = new DataBindingProvider();
string parameterName = "Parameter";
Type parameterType = typeof(int).MakeByRefType();
BindingProviderContext context = CreateBindingContext(parameterName, parameterType);
// Act
IBinding binding = product.TryCreateAsync(context).GetAwaiter().GetResult();
// Assert
Assert.Null(binding);
}
