public void Load_GivenValidCurrencyProviders_CallsLoadOnceOnEachProvider()
{
// Arrange
var conversionService = new Mock <ICurrencyConversionService>().Object;
var providerMock1 = new Mock <ICurrencyProvider>();
providerMock1.Setup(x => x.Load()).ReturnsAsync(true);
var providerMock2 = new Mock <ICurrencyProvider>();
providerMock2.Setup(x => x.Load()).ReturnsAsync(true);
var providers = new List <ICurrencyProvider> {
providerMock1.Object, providerMock2.Object
};
var vm = new ConvertViewModel(conversionService, providers);
// Act
vm.LoadProviders().Wait();
// Assert
providerMock1.Verify(x => x.Load(), Times.Exactly(1));
providerMock2.Verify(x => x.Load(), Times.Exactly(1));
}
protected override async void OnAppearing()
{
await _vm.LoadProviders();
}
private async void InitializeViewModel()
{
await _vm.LoadProviders();
}