Files
Terminal.Gui/UnitTests/Views/ButtonTests.cs
2024-02-22 16:03:06 -07:00

819 lines
26 KiB
C#

using System.ComponentModel;
using Xunit.Abstractions;
namespace Terminal.Gui.ViewsTests;
public class ButtonTests
{
private readonly ITestOutputHelper _output;
public ButtonTests (ITestOutputHelper output) { _output = output; }
// Test that Title and Text are the same
[Fact]
public void Text_Mirrors_Title ()
{
var view = new Button ();
view.Title = "Hello";
Assert.Equal ("Hello", view.Title);
Assert.Equal ($"Hello", view.TitleTextFormatter.Text);
Assert.Equal ("Hello", view.Text);
Assert.Equal ($"{CM.Glyphs.LeftBracket} Hello {CM.Glyphs.RightBracket}", view.TextFormatter.Text);
}
[Fact]
public void Title_Mirrors_Text ()
{
var view = new Button ();
view.Text = "Hello";
Assert.Equal ("Hello", view.Text);
Assert.Equal ($"{CM.Glyphs.LeftBracket} Hello {CM.Glyphs.RightBracket}", view.TextFormatter.Text);
Assert.Equal ("Hello", view.Title);
Assert.Equal ($"Hello", view.TitleTextFormatter.Text);
}
// BUGBUG: This test is NOT a unit test and needs to be broken apart into
// more specific tests (e.g. it tests Checkbox as well as Button)
[Fact]
[AutoInitShutdown]
public void AutoSize_False_With_Fixed_Width ()
{
var tab = new View ();
var lblWidth = 8;
var view = new View
{
Y = 1,
Width = lblWidth,
Height = 1,
TextAlignment = TextAlignment.Right,
Text = "Find:"
};
tab.Add (view);
var txtToFind = new TextField
{
X = Pos.Right (view) + 1, Y = Pos.Top (view), Width = 20, Text = "Testing buttons."
};
tab.Add (txtToFind);
var btnFindNext = new Button
{
AutoSize = false,
X = Pos.Right (txtToFind) + 1,
Y = Pos.Top (view),
Width = 20,
Enabled = !string.IsNullOrEmpty (txtToFind.Text),
TextAlignment = TextAlignment.Centered,
IsDefault = true,
Text = "Find _Next"
};
tab.Add (btnFindNext);
var btnFindPrevious = new Button
{
AutoSize = false,
X = Pos.Right (txtToFind) + 1,
Y = Pos.Top (btnFindNext) + 1,
Width = 20,
Enabled = !string.IsNullOrEmpty (txtToFind.Text),
TextAlignment = TextAlignment.Centered,
Text = "Find _Previous"
};
tab.Add (btnFindPrevious);
var btnCancel = new Button
{
AutoSize = false,
X = Pos.Right (txtToFind) + 1,
Y = Pos.Top (btnFindPrevious) + 2,
Width = 20,
TextAlignment = TextAlignment.Centered,
Text = "Cancel"
};
tab.Add (btnCancel);
var ckbMatchCase = new CheckBox { X = 0, Y = Pos.Top (txtToFind) + 2, Checked = true, Text = "Match c_ase" };
tab.Add (ckbMatchCase);
var ckbMatchWholeWord = new CheckBox
{
X = 0, Y = Pos.Top (ckbMatchCase) + 1, Checked = false, Text = "Match _whole word"
};
tab.Add (ckbMatchWholeWord);
var tabView = new TabView { Width = Dim.Fill (), Height = Dim.Fill () };
tabView.AddTab (new Tab { DisplayText = "Find", View = tab }, true);
var win = new Window { Width = Dim.Fill (), Height = Dim.Fill () };
tab.Width = view.Width + txtToFind.Width + btnFindNext.Width + 2;
tab.Height = btnFindNext.Height + btnFindPrevious.Height + btnCancel.Height + 4;
win.Add (tabView);
Application.Top.Add (win);
Application.Begin (Application.Top);
((FakeDriver)Application.Driver).SetBufferSize (54, 11);
Assert.Equal (new Rectangle (0, 0, 54, 11), win.Frame);
Assert.Equal (new Rectangle (0, 0, 52, 9), tabView.Frame);
Assert.Equal (new Rectangle (0, 0, 50, 7), tab.Frame);
Assert.Equal (new Rectangle (0, 1, 8, 1), view.Frame);
Assert.Equal (new Rectangle (9, 1, 20, 1), txtToFind.Frame);
Assert.Equal (0, txtToFind.ScrollOffset);
Assert.Equal (16, txtToFind.CursorPosition);
Assert.Equal (new (30, 1, 20, 1), btnFindNext.Frame);
Assert.Equal (new (30, 2, 20, 1), btnFindPrevious.Frame);
Assert.Equal (new (30, 4, 20, 1), btnCancel.Frame);
// Assert.Equal (new (0, 3, 12, 1), ckbMatchCase.Frame);
// Assert.Equal (new (0, 4, 18, 1), ckbMatchWholeWord.Frame);
var btn1 =
$"{
CM.Glyphs.LeftBracket
}{
CM.Glyphs.LeftDefaultIndicator
} Find Next {
CM.Glyphs.RightDefaultIndicator
}{
CM.Glyphs.RightBracket
}";
var btn2 = $"{CM.Glyphs.LeftBracket} Find Previous {CM.Glyphs.RightBracket}";
var btn3 = $"{CM.Glyphs.LeftBracket} Cancel {CM.Glyphs.RightBracket}";
var expected = @$"
┌────────────────────────────────────────────────────┐
│╭────╮ │
││Find│ │
││ ╰─────────────────────────────────────────────╮│
││ ││
││ Find: Testing buttons. {
btn1
} ││
││ {
btn2
} ││
││{
CM.Glyphs.Checked
} Match case ││
││{
CM.Glyphs.UnChecked
} Match whole word {
btn3
} ││
│└──────────────────────────────────────────────────┘│
└────────────────────────────────────────────────────┘
";
TestHelpers.AssertDriverContentsWithFrameAre (expected, _output);
}
[Fact]
[AutoInitShutdown]
public void AutoSize_Stays_True_AnchorEnd ()
{
var btn = new Button { Y = Pos.Center (), Text = "Say Hello 你", AutoSize = true };
var btnTxt = $"{CM.Glyphs.LeftBracket} {btn.Text} {CM.Glyphs.RightBracket}";
btn.X = Pos.AnchorEnd () - Pos.Function (() => btn.TextFormatter.Text.GetColumns ());
btn.X = Pos.AnchorEnd () - Pos.Function (() => btn.TextFormatter.Text.GetColumns ());
var win = new Window { Width = Dim.Fill (), Height = Dim.Fill () };
win.Add (btn);
Application.Top.Add (win);
Assert.True (btn.AutoSize);
Assert.True (btn.AutoSize);
Application.Begin (Application.Top);
((FakeDriver)Application.Driver).SetBufferSize (30, 5);
var expected = @$"
┌────────────────────────────┐
│ │
│ {
btnTxt
}│
│ │
└────────────────────────────┘
";
TestHelpers.AssertDriverContentsWithFrameAre (expected, _output);
Assert.True (btn.AutoSize);
btn.Text = "Say Hello 你 changed";
btnTxt = $"{CM.Glyphs.LeftBracket} {btn.Text} {CM.Glyphs.RightBracket}";
Assert.True (btn.AutoSize);
Application.Refresh ();
expected = @$"
┌────────────────────────────┐
│ │
│ {
btnTxt
}│
│ │
└────────────────────────────┘
";
TestHelpers.AssertDriverContentsWithFrameAre (expected, _output);
}
[Fact]
[AutoInitShutdown]
public void AutoSize_Stays_True_Center ()
{
var btn = new Button { X = Pos.Center (), Y = Pos.Center (), Text = "Say Hello 你" };
var win = new Window { Width = Dim.Fill (), Height = Dim.Fill () };
win.Add (btn);
Application.Top.Add (win);
Assert.True (btn.AutoSize);
Assert.True (btn.AutoSize);
Application.Begin (Application.Top);
((FakeDriver)Application.Driver).SetBufferSize (30, 5);
var expected = @$"
┌────────────────────────────┐
│ │
│ {
CM.Glyphs.LeftBracket
} Say Hello 你 {
CM.Glyphs.RightBracket
} │
│ │
└────────────────────────────┘
";
TestHelpers.AssertDriverContentsWithFrameAre (expected, _output);
Assert.True (btn.AutoSize);
btn.Text = "Say Hello 你 changed";
Assert.True (btn.AutoSize);
Application.Refresh ();
expected = @$"
┌────────────────────────────┐
│ │
│ {
CM.Glyphs.LeftBracket
} Say Hello 你 changed {
CM.Glyphs.RightBracket
} │
│ │
└────────────────────────────┘
";
TestHelpers.AssertDriverContentsWithFrameAre (expected, _output);
}
[Fact]
[AutoInitShutdown]
public void AutoSize_Stays_True_With_EmptyText ()
{
var btn = new Button { X = Pos.Center (), Y = Pos.Center (), AutoSize = true };
var win = new Window { Width = Dim.Fill (), Height = Dim.Fill () };
win.Add (btn);
Application.Top.Add (win);
Assert.True (btn.AutoSize);
Assert.True (btn.AutoSize);
btn.Text = "Say Hello 你";
btn.Text = "Say Hello 你";
Assert.True (btn.AutoSize);
Assert.True (btn.AutoSize);
Application.Begin (Application.Top);
((FakeDriver)Application.Driver).SetBufferSize (30, 5);
var expected = @$"
┌────────────────────────────┐
│ │
│ {
CM.Glyphs.LeftBracket
} Say Hello 你 {
CM.Glyphs.RightBracket
} │
│ │
└────────────────────────────┘
";
TestHelpers.AssertDriverContentsWithFrameAre (expected, _output);
}
[Fact]
[SetupFakeDriver]
public void Button_AutoSize_False_With_Fixed_Width ()
{
((FakeDriver)Application.Driver).SetBufferSize (20, 5);
var top = new View { Width = 20, Height = 5 };
var btn1 = new Button
{
AutoSize = false,
X = Pos.Center (),
Y = Pos.Center (),
Width = 16,
Height = 1,
Text = "Open me!"
};
var btn2 = new Button
{
AutoSize = false,
X = Pos.Center (),
Y = Pos.Center () + 1,
Width = 16,
Height = 1,
Text = "Close me!"
};
top.Add (btn1, btn2);
top.BeginInit ();
top.EndInit ();
top.Draw ();
Assert.Equal ("{Width=16, Height=1}", btn1.TextFormatter.Size.ToString ());
Assert.Equal ("{Width=16, Height=1}", btn2.TextFormatter.Size.ToString ());
TestHelpers.AssertDriverContentsWithFrameAre (
@$"
{
CM.Glyphs.LeftBracket
} {
btn1.Text
} {
CM.Glyphs.RightBracket
}
{
CM.Glyphs.LeftBracket
} {
btn2.Text
} {
CM.Glyphs.RightBracket
}",
_output
);
}
[Fact]
[AutoInitShutdown]
public void Button_HotKeyChanged_EventFires ()
{
var btn = new Button { Text = "_Yar" };
object sender = null;
KeyChangedEventArgs args = null;
btn.HotKeyChanged += (s, e) =>
{
sender = s;
args = e;
};
btn.HotKeyChanged += (s, e) =>
{
sender = s;
args = e;
};
btn.HotKey = KeyCode.R;
Assert.Same (btn, sender);
Assert.Equal (KeyCode.Y, args.OldKey);
Assert.Equal (KeyCode.R, args.NewKey);
btn.HotKey = KeyCode.R;
Assert.Same (btn, sender);
Assert.Equal (KeyCode.Y, args.OldKey);
Assert.Equal (KeyCode.R, args.NewKey);
}
[Fact]
[AutoInitShutdown]
public void Button_HotKeyChanged_EventFires_WithNone ()
{
var btn = new Button ();
object sender = null;
KeyChangedEventArgs args = null;
btn.HotKeyChanged += (s, e) =>
{
sender = s;
args = e;
};
btn.HotKey = KeyCode.R;
Assert.Same (btn, sender);
Assert.Equal (KeyCode.Null, args.OldKey);
Assert.Equal (KeyCode.R, args.NewKey);
}
[Fact]
[SetupFakeDriver]
public void Constructors_Defaults ()
{
var btn = new Button ();
Assert.Equal (string.Empty, btn.Text);
btn.BeginInit ();
btn.EndInit ();
Assert.Equal ($"{CM.Glyphs.LeftBracket} {CM.Glyphs.RightBracket}", btn.TextFormatter.Text);
Assert.False (btn.IsDefault);
Assert.Equal (TextAlignment.Centered, btn.TextAlignment);
Assert.Equal ('_', btn.HotKeySpecifier.Value);
Assert.True (btn.CanFocus);
Assert.Equal (new Rectangle (0, 0, 4, 1), btn.Bounds);
Assert.Equal (new Rectangle (0, 0, 4, 1), btn.Frame);
Assert.Equal ($"{CM.Glyphs.LeftBracket} {CM.Glyphs.RightBracket}", btn.TextFormatter.Text);
Assert.False (btn.IsDefault);
Assert.Equal (TextAlignment.Centered, btn.TextAlignment);
Assert.Equal ('_', btn.HotKeySpecifier.Value);
Assert.True (btn.CanFocus);
Assert.Equal (new Rectangle (0, 0, 4, 1), btn.Bounds);
Assert.Equal (new Rectangle (0, 0, 4, 1), btn.Frame);
Assert.Equal (string.Empty, btn.Title);
Assert.Equal (KeyCode.Null, btn.HotKey);
btn.Draw ();
var expected = @$"
{
CM.Glyphs.LeftBracket
} {
CM.Glyphs.RightBracket
}
";
TestHelpers.AssertDriverContentsWithFrameAre (expected, _output);
btn = new Button { Text = "_Test", IsDefault = true };
btn.BeginInit ();
btn.EndInit ();
Assert.Equal ('_', btn.HotKeySpecifier.Value);
Assert.Equal (Key.T, btn.HotKey);
Assert.Equal ("_Test", btn.Text);
Assert.Equal (
$"{
CM.Glyphs.LeftBracket
}{
CM.Glyphs.LeftDefaultIndicator
} Test {
CM.Glyphs.RightDefaultIndicator
}{
CM.Glyphs.RightBracket
}",
btn.TextFormatter.Format ()
);
Assert.True (btn.IsDefault);
Assert.Equal (TextAlignment.Centered, btn.TextAlignment);
Assert.True (btn.CanFocus);
Assert.Equal (new Rectangle (0, 0, 10, 1), btn.Bounds);
Assert.Equal (new Rectangle (0, 0, 10, 1), btn.Frame);
Assert.Equal (KeyCode.T, btn.HotKey);
btn = new Button { X = 1, Y = 2, Text = "_abc", IsDefault = true };
btn.BeginInit ();
btn.EndInit ();
Assert.Equal ("_abc", btn.Text);
Assert.Equal (Key.A, btn.HotKey);
Assert.Equal (
$"{
CM.Glyphs.LeftBracket
}{
CM.Glyphs.LeftDefaultIndicator
} abc {
CM.Glyphs.RightDefaultIndicator
}{
CM.Glyphs.RightBracket
}",
btn.TextFormatter.Format ()
);
Assert.True (btn.IsDefault);
Assert.Equal (TextAlignment.Centered, btn.TextAlignment);
Assert.Equal ('_', btn.HotKeySpecifier.Value);
Assert.True (btn.CanFocus);
Application.Driver.ClearContents ();
btn.Draw ();
expected = @$"
{
CM.Glyphs.LeftBracket
}{
CM.Glyphs.LeftDefaultIndicator
} abc {
CM.Glyphs.RightDefaultIndicator
}{
CM.Glyphs.RightBracket
}
";
TestHelpers.AssertDriverContentsWithFrameAre (expected, _output);
Assert.Equal (new Rectangle (0, 0, 9, 1), btn.Bounds);
Assert.Equal (new Rectangle (1, 2, 9, 1), btn.Frame);
}
[Fact]
[AutoInitShutdown]
public void HotKeyChange_Works ()
{
var clicked = false;
var btn = new Button { Text = "_Test" };
btn.Accept += (s, e) => clicked = true;
Application.Top.Add (btn);
Application.Begin (Application.Top);
Assert.Equal (KeyCode.T, btn.HotKey);
Assert.True (btn.NewKeyDownEvent (Key.T));
Assert.True (clicked);
clicked = false;
Assert.True (btn.NewKeyDownEvent (Key.T.WithAlt));
Assert.True (clicked);
clicked = false;
btn.HotKey = KeyCode.E;
Assert.True (btn.NewKeyDownEvent (Key.E.WithAlt));
Assert.True (clicked);
}
/// <summary>
/// This test demonstrates how to change the activation key for Button as described in the README.md keyboard
/// handling section
/// </summary>
[Fact]
[AutoInitShutdown]
public void KeyBindingExample ()
{
var pressed = 0;
var btn = new Button { Text = "Press Me" };
btn.Accept += (s, e) => pressed++;
// The Button class supports the Default and Accept command
Assert.Contains (Command.HotKey, btn.GetSupportedCommands ());
Assert.Contains (Command.Accept, btn.GetSupportedCommands ());
Application.Top.Add (btn);
Application.Begin (Application.Top);
Application.Top.Add (btn);
Application.Begin (Application.Top);
// default keybinding is Space which results in keypress
Application.OnKeyDown (new Key ((KeyCode)' '));
Assert.Equal (1, pressed);
// remove the default keybinding (Space)
btn.KeyBindings.Clear (Command.HotKey);
btn.KeyBindings.Clear (Command.Accept);
// After clearing the default keystroke the Space button no longer does anything for the Button
Application.OnKeyDown (new Key ((KeyCode)' '));
Assert.Equal (1, pressed);
// Set a new binding of b for the click (Accept) event
btn.KeyBindings.Add (Key.B, Command.HotKey);
btn.KeyBindings.Add (Key.B, Command.Accept);
// now pressing B should call the button click event
Application.OnKeyDown (Key.B);
Assert.Equal (2, pressed);
// now pressing Shift-B should NOT call the button click event
Application.OnKeyDown (Key.B.WithShift);
Assert.Equal (2, pressed);
// now pressing Alt-B should NOT call the button click event
Application.OnKeyDown (Key.B.WithAlt);
Assert.Equal (2, pressed);
// now pressing Shift-Alt-B should NOT call the button click event
Application.OnKeyDown (Key.B.WithAlt.WithShift);
Assert.Equal (2, pressed);
}
[Fact]
[AutoInitShutdown]
public void KeyBindings_Command ()
{
var clicked = false;
var btn = new Button { Text = "_Test" };
btn.Accept += (s, e) => clicked = true;
Application.Top.Add (btn);
Application.Begin (Application.Top);
// Hot key. Both alone and with alt
Assert.Equal (KeyCode.T, btn.HotKey);
Assert.True (btn.NewKeyDownEvent (Key.T));
Assert.True (clicked);
clicked = false;
Assert.True (btn.NewKeyDownEvent (Key.T.WithAlt));
Assert.True (clicked);
clicked = false;
Assert.True (btn.NewKeyDownEvent (btn.HotKey));
Assert.True (clicked);
clicked = false;
Assert.True (btn.NewKeyDownEvent (btn.HotKey));
Assert.True (clicked);
clicked = false;
// IsDefault = false
// Space and Enter should work
Assert.False (btn.IsDefault);
Assert.True (btn.NewKeyDownEvent (Key.Enter));
Assert.True (clicked);
clicked = false;
// IsDefault = true
// Space and Enter should work
btn.IsDefault = true;
Assert.True (btn.NewKeyDownEvent (Key.Enter));
Assert.True (clicked);
clicked = false;
// Toplevel does not handle Enter, so it should get passed on to button
Assert.True (Application.Top.NewKeyDownEvent (Key.Enter));
Assert.True (clicked);
clicked = false;
// Direct
Assert.True (btn.NewKeyDownEvent (Key.Enter));
Assert.True (clicked);
clicked = false;
Assert.True (btn.NewKeyDownEvent (Key.Space));
Assert.True (clicked);
clicked = false;
Assert.True (btn.NewKeyDownEvent (new Key ((KeyCode)'T')));
Assert.True (clicked);
clicked = false;
// Change hotkey:
btn.Text = "Te_st";
Assert.True (btn.NewKeyDownEvent (btn.HotKey));
Assert.True (clicked);
clicked = false;
}
[Fact]
public void HotKey_Command_Accepts ()
{
var button = new Button ();
var accepted = false;
button.Accept += ButtonOnAccept;
button.InvokeCommand (Command.HotKey);
Assert.True (accepted);
return;
void ButtonOnAccept (object sender, CancelEventArgs e) { accepted = true; }
}
[Fact]
public void Accept_Cancel_Event_OnAccept_Returns_True ()
{
var button = new Button ();
var acceptInvoked = false;
button.Accept += ButtonAccept;
var ret = button.OnAccept ();
Assert.True (ret);
Assert.True (acceptInvoked);
return;
void ButtonAccept (object sender, CancelEventArgs e)
{
acceptInvoked = true;
e.Cancel = true;
}
}
[Fact]
public void Setting_Empty_Text_Sets_HoKey_To_KeyNull ()
{
var super = new View ();
var btn = new Button { Text = "_Test" };
super.Add (btn);
super.BeginInit ();
super.EndInit ();
Assert.Equal ("_Test", btn.Text);
Assert.Equal (KeyCode.T, btn.HotKey);
btn.Text = string.Empty;
Assert.Equal ("", btn.Text);
Assert.Equal (KeyCode.Null, btn.HotKey);
btn.Text = string.Empty;
Assert.Equal ("", btn.Text);
Assert.Equal (KeyCode.Null, btn.HotKey);
btn.Text = "Te_st";
Assert.Equal ("Te_st", btn.Text);
Assert.Equal (KeyCode.S, btn.HotKey);
}
[Fact]
public void TestAssignTextToButton ()
{
View b = new Button { Text = "heya" };
Assert.Equal ("heya", b.Text);
Assert.Contains ("heya", b.TextFormatter.Text);
b.Text = "heyb";
Assert.Equal ("heyb", b.Text);
Assert.Contains ("heyb", b.TextFormatter.Text);
// with cast
Assert.Equal ("heyb", ((Button)b).Text);
}
[Fact]
[AutoInitShutdown]
public void Update_Only_On_Or_After_Initialize ()
{
var btn = new Button { X = Pos.Center (), Y = Pos.Center (), Text = "Say Hello 你" };
var win = new Window { Width = Dim.Fill (), Height = Dim.Fill () };
win.Add (btn);
Application.Top.Add (win);
Assert.False (btn.IsInitialized);
Assert.False (btn.IsInitialized);
Application.Begin (Application.Top);
((FakeDriver)Application.Driver).SetBufferSize (30, 5);
Application.Begin (Application.Top);
((FakeDriver)Application.Driver).SetBufferSize (30, 5);
Assert.True (btn.IsInitialized);
Assert.Equal ("Say Hello 你", btn.Text);
Assert.Equal ($"{CM.Glyphs.LeftBracket} {btn.Text} {CM.Glyphs.RightBracket}", btn.TextFormatter.Text);
Assert.Equal (new Rectangle (0, 0, 16, 1), btn.Bounds);
var btnTxt = $"{CM.Glyphs.LeftBracket} {btn.Text} {CM.Glyphs.RightBracket}";
var expected = @$"
┌────────────────────────────┐
│ │
│ {
btnTxt
} │
│ │
└────────────────────────────┘
";
Rectangle pos = TestHelpers.AssertDriverContentsWithFrameAre (expected, _output);
Assert.Equal (new Rectangle (0, 0, 30, 5), pos);
}
[Fact]
[AutoInitShutdown]
public void Update_Parameterless_Only_On_Or_After_Initialize ()
{
var btn = new Button { X = Pos.Center (), Y = Pos.Center (), Text = "Say Hello 你" };
var win = new Window { Width = Dim.Fill (), Height = Dim.Fill () };
win.Add (btn);
Application.Top.Add (win);
Assert.False (btn.IsInitialized);
Assert.False (btn.IsInitialized);
Application.Begin (Application.Top);
((FakeDriver)Application.Driver).SetBufferSize (30, 5);
Application.Begin (Application.Top);
((FakeDriver)Application.Driver).SetBufferSize (30, 5);
Assert.True (btn.IsInitialized);
Assert.Equal ("Say Hello 你", btn.Text);
Assert.Equal ($"{CM.Glyphs.LeftBracket} {btn.Text} {CM.Glyphs.RightBracket}", btn.TextFormatter.Text);
Assert.Equal (new Rectangle (0, 0, 16, 1), btn.Bounds);
var btnTxt = $"{CM.Glyphs.LeftBracket} {btn.Text} {CM.Glyphs.RightBracket}";
var expected = @$"
┌────────────────────────────┐
│ │
│ {
btnTxt
} │
│ │
└────────────────────────────┘
";
Rectangle pos = TestHelpers.AssertDriverContentsWithFrameAre (expected, _output);
Assert.Equal (new Rectangle (0, 0, 30, 5), pos);
}
}