public void TrySetSelectedIndex()
{
// given
const int COMBO_BOX_ITEMS_NO = 111;
ComboBox control1 = TestControls.GetTestComboBox(COMBO_BOX_ITEMS_NO);
const int SELECTED_INDEX_1 = 66;
const int SELECTED_INDEX_2 = -COMBO_BOX_ITEMS_NO;
const int SELECTED_INDEX_3 = COMBO_BOX_ITEMS_NO + 1;
const int LIST_BOX_ITEMS_NO = 31;
ListBox control2 = TestControls.GetTestListBox(LIST_BOX_ITEMS_NO);
const int SELECTED_INDEX_4 = -LIST_BOX_ITEMS_NO;
const int SELECTED_INDEX_5 = LIST_BOX_ITEMS_NO / 2;
const int SELECTED_INDEX_6 = LIST_BOX_ITEMS_NO + 1;
// when
UiControls.TrySetSelectedIndex(control1, SELECTED_INDEX_1);
int selectedIndex1 = control1.SelectedIndex;
UiControls.TrySetSelectedIndex(control1, SELECTED_INDEX_2);
int selectedIndex2 = control1.SelectedIndex;
UiControls.TrySetSelectedIndex(control1, SELECTED_INDEX_3);
int selectedIndex3 = control1.SelectedIndex;
UiControls.TrySetSelectedIndex(control2, SELECTED_INDEX_4);
int selectedIndex4 = control2.SelectedIndex;
UiControls.TrySetSelectedIndex(control2, SELECTED_INDEX_5);
int selectedIndex5 = control2.SelectedIndex;
UiControls.TrySetSelectedIndex(control2, SELECTED_INDEX_6);
int selectedIndex6 = control2.SelectedIndex;
UiControls.TrySetSelectedIndex(new ComboBox(), 0);
UiControls.TrySetSelectedIndex(new ListBox(), 0);
UiControls.TrySetSelectedIndex(new Button(), 0);
UiControls.TrySetSelectedIndex(null, 0);
// then
Assert.IsTrue(selectedIndex1.Equals(SELECTED_INDEX_1));
Assert.IsFalse(selectedIndex2.Equals(SELECTED_INDEX_2));
Assert.IsFalse(selectedIndex3.Equals(SELECTED_INDEX_3));
Assert.IsFalse(selectedIndex4.Equals(SELECTED_INDEX_4));
Assert.IsTrue(selectedIndex5.Equals(SELECTED_INDEX_5));
Assert.IsFalse(selectedIndex6.Equals(SELECTED_INDEX_6));
}
public void TryGetSelectedIndex()
{
// given
const int CONTROL1_INDEX = 4;
const int CONTROL1_ITEMS_NO = 77;
ComboBox control1 = TestControls.GetTestComboBox(CONTROL1_ITEMS_NO);
control1.SelectedIndex = CONTROL1_INDEX;
const int ERROR_INDEX = -1;
ComboBox control2 = new ComboBox();
const int CONTROL3_INDEX = 7;
const int CONTROL3_ITEMS_NO = 52;
ListBox control3 = TestControls.GetTestListBox(CONTROL3_ITEMS_NO);
control3.SelectedIndex = CONTROL3_INDEX;
const int CONTROL4_TAB_PAGES_NO = 23;
const int CONTROL4_INDEX = CONTROL4_TAB_PAGES_NO / 3;
TabControl control4 = TestControls.GetTestTabControl(CONTROL4_TAB_PAGES_NO);
control4.SelectTab(CONTROL4_INDEX);
// when
int result1 = UiControls.TryGetSelectedIndex(control1);
int result2 = UiControls.TryGetSelectedIndex(control2);
int result3 = UiControls.TryGetSelectedIndex(control3);
int result4 = UiControls.TryGetSelectedIndex(new Button());
int result5 = UiControls.TryGetSelectedIndex(null);
int result6 = UiControls.TryGetSelectedIndex(control4);
// then
Assert.IsTrue(result1.Equals(CONTROL1_INDEX));
Assert.IsTrue(result2.Equals(ERROR_INDEX));
Assert.IsTrue(result3.Equals(CONTROL3_INDEX));
Assert.IsTrue(result4.Equals(ERROR_INDEX));
Assert.IsTrue(result5.Equals(ERROR_INDEX));
Assert.IsTrue(result6.Equals(CONTROL4_INDEX));
}