public void TextBox_CreateAccessibilityInstance_Invoke_ReturnsExpected()
{
using var control = new SubTextBox();
Control.ControlAccessibleObject instance = Assert.IsType <Control.ControlAccessibleObject>(control.CreateAccessibilityInstance());
Assert.NotNull(instance);
Assert.Same(control, instance.Owner);
Assert.Equal(AccessibleRole.Text, instance.Role);
Assert.NotSame(control.CreateAccessibilityInstance(), instance);
Assert.NotSame(control.AccessibilityObject, instance);
}
public void TextBox_PlaceholderText_When_InAccessibility_Doesnot_Raise_TextChanged()
{
using var tb = new SubTextBox();
bool eventRaised = false;
EventHandler handler = (o, e) => eventRaised = true;
tb.TextChanged += handler;
tb.CreateAccessibilityInstance();
Assert.False(eventRaised);
tb.TextChanged -= handler;
}
public void TextBox_CreateAccessibilityInstance_InvokeWithCustomRole_ReturnsExpected()
{
using var control = new SubTextBox
{
AccessibleRole = AccessibleRole.HelpBalloon
};
Control.ControlAccessibleObject instance = Assert.IsType <TextBoxBase.TextBoxBaseAccessibleObject>(control.CreateAccessibilityInstance());
Assert.NotNull(instance);
Assert.Same(control, instance.Owner);
Assert.Equal(AccessibleRole.HelpBalloon, instance.Role);
Assert.NotSame(control.CreateAccessibilityInstance(), instance);
Assert.NotSame(control.AccessibilityObject, instance);
Assert.False(control.IsHandleCreated);
}
public void TextBox_CreateAccessibilityInstance_Invoke_ReturnsExpected(bool createControl, AccessibleRole expectedAccessibleRole)
{
using var control = new SubTextBox();
if (createControl)
{
control.CreateControl();
}
Assert.Equal(createControl, control.IsHandleCreated);
Control.ControlAccessibleObject instance = Assert.IsType <Control.ControlAccessibleObject>(control.CreateAccessibilityInstance());
Assert.Equal(createControl, control.IsHandleCreated);
Assert.NotNull(instance);
Assert.Same(control, instance.Owner);
Assert.Equal(expectedAccessibleRole, instance.Role);
Assert.NotSame(control.CreateAccessibilityInstance(), instance);
Assert.NotSame(control.AccessibilityObject, instance);
}
