public async Task AdapterDoesNotPreventRegionFromBeingGarbageCollected()
{
await ExecuteOnUIThread(() =>
{
var selector = new ListBox();
object model = new object();
IRegionAdapter adapter = new SelectorRegionAdapter(null);
var region = adapter.Initialize(selector, "Region1");
region.Add(model);
WeakReference regionWeakReference = new WeakReference(region);
WeakReference controlWeakReference = new WeakReference(selector);
Assert.IsTrue(regionWeakReference.IsAlive);
Assert.IsTrue(controlWeakReference.IsAlive);
region = null;
selector = null;
GC.Collect();
GC.Collect();
Assert.IsFalse(regionWeakReference.IsAlive);
Assert.IsFalse(controlWeakReference.IsAlive);
});
}
public void DeactivatingTheSelectedViewShouldUpdateTheSelectedItem()
{
var selector = new ListBox();
var view1 = new object();
IRegionAdapter adapter = new SelectorRegionAdapter(null);
var region = adapter.Initialize(selector, "Region1");
region.Add(view1);
region.Activate(view1);
Assert.AreEqual(view1, selector.SelectedItem);
region.Deactivate(view1);
Assert.AreNotEqual(view1, selector.SelectedItem);
}
public void DeactivatingTheSelectedViewShouldUpdateTheSelectedItem()
{
var selector = new ListBox();
var view1 = new object();
IRegionAdapter adapter = new SelectorRegionAdapter(null);
var region = adapter.Initialize(selector, "Region1");
region.Add(view1);
region.Activate(view1);
Assert.Equal(view1, selector.SelectedItem);
region.Deactivate(view1);
Assert.NotEqual(view1, selector.SelectedItem);
}
public void DeactivatingTheSelectedViewShouldUpdateTheSelectedItem()
{
TabControl tabControl = new TabControl();
var view1 = new object();
IRegionAdapter adapter = new SelectorRegionAdapter();
var region = adapter.Initialize(tabControl);
region.Add(view1);
region.Activate(view1);
Assert.AreEqual(view1, tabControl.SelectedItem);
region.Deactivate(view1);
Assert.AreNotEqual(view1, tabControl.SelectedItem);
}
public void RegionDoesNotGetUpdatedIfTheItemsSourceWasManuallyChanged()
{
TabControl tabControl = new TabControl();
object model = new object();
IRegionAdapter adapter = new SelectorRegionAdapter();
var region = adapter.Initialize(tabControl);
region.Add(model);
tabControl.ItemsSource = null;
tabControl.Items.Add(model);
Assert.IsFalse(region.ActiveViews.Contains(model));
tabControl.SelectedItem = model;
Assert.IsFalse(region.ActiveViews.Contains(model), "The region should not be updated");
}
public void AdapterDoesNotPreventControlFromBeingGarbageCollectedWhenSettingItemsSourceToNull()
{
TabControl tabControl = new TabControl();
object model = new object();
IRegionAdapter adapter = new SelectorRegionAdapter();
var region = adapter.Initialize(tabControl);
region.Add(model);
WeakReference controlWeakReference = new WeakReference(tabControl);
Assert.IsTrue(controlWeakReference.IsAlive);
tabControl.ItemsSource = null;
tabControl = null;
GC.Collect();
GC.Collect();
Assert.IsFalse(controlWeakReference.IsAlive);
}
public void AdapterDoesNotPreventRegionFromBeingGarbageCollected()
{
var selector = new ListBox();
object model = new object();
IRegionAdapter adapter = new SelectorRegionAdapter(null);
var region = adapter.Initialize(selector, "Region1");
region.Add(model);
WeakReference regionWeakReference = new WeakReference(region);
WeakReference controlWeakReference = new WeakReference(selector);
Assert.True(regionWeakReference.IsAlive);
Assert.True(controlWeakReference.IsAlive);
region = null;
selector = null;
GC.Collect();
GC.Collect();
Assert.False(regionWeakReference.IsAlive);
Assert.False(controlWeakReference.IsAlive);
}
public void AdapterSynchronizesSelectorSelectionWithRegion()
{
TabControl tabControl = new TabControl();
object model1 = new object();
object model2 = new object();
IRegionAdapter adapter = new SelectorRegionAdapter();
var region = adapter.Initialize(tabControl);
region.Add(model1);
region.Add(model2);
Assert.IsFalse(region.ActiveViews.Contains(model2));
tabControl.SelectedItem = model2;
Assert.IsTrue(region.ActiveViews.Contains(model2));
Assert.IsFalse(region.ActiveViews.Contains(model1));
tabControl.SelectedItem = model1;
Assert.IsTrue(region.ActiveViews.Contains(model1));
Assert.IsFalse(region.ActiveViews.Contains(model2));
}
public void DeactivatingTheSelectedViewShouldUpdateTheSelectedItem()
{
TabControl tabControl = new TabControl();
var view1 = new object();
IRegionAdapter adapter = new SelectorRegionAdapter();
var region = adapter.Initialize(tabControl);
region.Add(view1);
region.Activate(view1);
Assert.AreEqual(view1, tabControl.SelectedItem);
region.Deactivate(view1);
Assert.AreNotEqual(view1, tabControl.SelectedItem);
}
public void RegionDoesNotGetUpdatedIfTheItemsSourceWasManuallyChanged()
{
TabControl tabControl = new TabControl();
object model = new object();
IRegionAdapter adapter = new SelectorRegionAdapter();
var region = adapter.Initialize(tabControl);
region.Add(model);
tabControl.ItemsSource = null;
tabControl.Items.Add(model);
Assert.IsFalse(region.ActiveViews.Contains(model));
tabControl.SelectedItem = model;
Assert.IsFalse(region.ActiveViews.Contains(model), "The region should not be updated");
}
public void AdapterDoesNotPreventControlFromBeingGarbageCollectedWhenSettingItemsSourceToNull()
{
TabControl tabControl = new TabControl();
object model = new object();
IRegionAdapter adapter = new SelectorRegionAdapter();
var region = adapter.Initialize(tabControl);
region.Add(model);
WeakReference controlWeakReference = new WeakReference(tabControl);
Assert.IsTrue(controlWeakReference.IsAlive);
tabControl.ItemsSource = null;
tabControl = null;
GC.Collect();
GC.Collect();
Assert.IsFalse(controlWeakReference.IsAlive);
}
public void AdapterSynchronizesSelectorSelectionWithRegion()
{
TabControl tabControl = new TabControl();
object model1 = new object();
object model2 = new object();
IRegionAdapter adapter = new SelectorRegionAdapter();
var region = adapter.Initialize(tabControl);
region.Add(model1);
region.Add(model2);
Assert.IsFalse(region.ActiveViews.Contains(model2));
tabControl.SelectedItem = model2;
Assert.IsTrue(region.ActiveViews.Contains(model2));
Assert.IsFalse(region.ActiveViews.Contains(model1));
tabControl.SelectedItem = model1;
Assert.IsTrue(region.ActiveViews.Contains(model1));
Assert.IsFalse(region.ActiveViews.Contains(model2));
}
public async Task ActivatingTheViewShouldUpdateTheSelectedItem()
{
await ExecuteOnUIThread(() =>
{
var selector = new ListBox();
var view1 = new object();
var view2 = new object();
IRegionAdapter adapter = new SelectorRegionAdapter(null);
var region = adapter.Initialize(selector, "Region1");
region.Add(view1);
region.Add(view2);
Assert.AreNotEqual(view1, selector.SelectedItem);
region.Activate(view1);
Assert.AreEqual(view1, selector.SelectedItem);
region.Activate(view2);
Assert.AreEqual(view2, selector.SelectedItem);
});
}
