public async Task TestDefaultCtor()
{
// set up
var appSettings = new AppSettings();
// run
var viewModel = new FlyingRangePopupViewModel(appSettings);
// check
Assert.IsTrue(
viewModel.GlideRatio > 0.0 &&
viewModel.GlideRatio < 20.0,
"glide ratio must have a sane default value");
Assert.IsTrue(viewModel.WindDirectionList.Any(), "wind direction list must contain values");
Assert.IsTrue(
viewModel.WindDirectionList.Contains(viewModel.WindDirection),
"wind direction must be in the wind direction list");
Assert.IsTrue(viewModel.WindSpeed.Any(), "wind speed must contain text");
// modify values
viewModel.GlideRatio = 8.5;
viewModel.WindDirection = viewModel.WindDirectionList[1];
viewModel.WindSpeed = "42 km/h";
Assert.AreEqual(42.0, viewModel.Parameters.WindSpeed, 1e-6, "modified wind speed must match");
await viewModel.StoreFlyingRangeParameters();
}
/// <summary>
/// Creates a new popup page to edit flying range parameters
/// </summary>
public FlyingRangePopupPage()
{
this.CloseWhenBackgroundIsClicked = true;
this.InitializeComponent();
this.BindingContext = this.viewModel = new FlyingRangePopupViewModel(App.Settings);
}
