public void DoubleBindingNotEffectedByGlobal()
{
Text text = null;
var view = new StatePage();
view.text.Value = "Hello";
int buildCount = 0;
int textBuildCount = 0;
view.Body = () => {
buildCount++;
text = new Text(() => {
textBuildCount++;
return($"{view.text.Value} - {view.clickCount.Value}");
});
return(text);
};
var viewHandler = new GenericViewHandler();
view.ViewHandler = viewHandler;
var textHandler = new GenericViewHandler();
text.ViewHandler = textHandler;
Assert.Equal(1, buildCount);
Assert.Equal(1, textBuildCount);
view.clickCount.Value++;
Assert.Equal(1, buildCount);
Assert.Equal(2, textBuildCount);
view.text.Value = "Good bye";
Assert.Equal(1, buildCount);
Assert.Equal(3, textBuildCount);
}
public void RebuildingViewsReuseNativeView()
{
Text text = null;
Text currentText = null;
var view = new StatePage();
view.text.Value = "Hello";
int buildCount = 0;
view.Body = () => {
buildCount++;
currentText = new Text($"{view.text.Value} - {view.clickCount.Value}");
return(currentText);
};
var viewHandler = new GenericViewHandler();
view.ViewHandler = viewHandler;
text = currentText;
var textHandler = new GenericViewHandler();
text.ViewHandler = textHandler;
Assert.Equal(1, buildCount);
view.clickCount.Value++;
Assert.Equal(2, buildCount);
//Check to make sure that the view was rebuilt
Assert.NotEqual(text, currentText);
//Make sure the old one is unasociated
Assert.Null(text?.ViewHandler);
//Make sure the new view has the old handler
Assert.Equal(currentText?.ViewHandler, textHandler);
}
public void FormatingStringInTextCausesGlobal()
{
Text text = null;
var view = new StatePage();
view.text.Value = "Hello";
int buildCount = 0;
view.Body = () => {
buildCount++;
text = new Text($"{view.text.Value} - {view.clickCount.Value}");
return(text);
};
var viewHandler = new GenericViewHandler();
view.ViewHandler = viewHandler;
var textHandler = new GenericViewHandler();
text.ViewHandler = textHandler;
Assert.Equal(1, buildCount);
view.clickCount.Value++;
Assert.Equal(2, buildCount);
view.text.Value = "Good bye";
Assert.Equal(3, buildCount);
}
