mirror of
https://github.com/gui-cs/Terminal.Gui.git
synced 2025-12-26 15:57:56 +01:00
365 lines
12 KiB
C#
365 lines
12 KiB
C#
using TerminalGuiFluentTesting;
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using UnitTests;
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using Xunit.Abstractions;
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namespace UnitTests.ViewsTests;
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public class ButtonTests (ITestOutputHelper output)
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{
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[Fact]
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[SetupFakeApplication]
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public void Constructors_Defaults ()
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{
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// Override CM
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Button.DefaultShadow = ShadowStyle.None;
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var btn = new Button ()
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{
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App = ApplicationImpl.Instance
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};
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Assert.Equal (string.Empty, btn.Text);
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btn.BeginInit ();
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btn.EndInit ();
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btn.SetRelativeLayout (new (100, 100));
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Assert.Equal ($"{Glyphs.LeftBracket} {Glyphs.RightBracket}", btn.TextFormatter.Text);
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Assert.False (btn.IsDefault);
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Assert.Equal (Alignment.Center, btn.TextAlignment);
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Assert.Equal ('_', btn.HotKeySpecifier.Value);
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Assert.True (btn.CanFocus);
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Assert.Equal (new (0, 0, 4, 1), btn.Viewport);
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Assert.Equal (new (0, 0, 4, 1), btn.Frame);
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Assert.Equal ($"{Glyphs.LeftBracket} {Glyphs.RightBracket}", btn.TextFormatter.Text);
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Assert.False (btn.IsDefault);
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Assert.Equal (Alignment.Center, btn.TextAlignment);
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Assert.Equal ('_', btn.HotKeySpecifier.Value);
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Assert.True (btn.CanFocus);
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Assert.Equal (new (0, 0, 4, 1), btn.Viewport);
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Assert.Equal (new (0, 0, 4, 1), btn.Frame);
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Assert.Equal (string.Empty, btn.Title);
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Assert.Equal (KeyCode.Null, btn.HotKey);
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btn.Draw ();
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var expected = @$"
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{Glyphs.LeftBracket} {Glyphs.RightBracket}
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";
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DriverAssert.AssertDriverContentsWithFrameAre (expected, output);
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btn.Dispose ();
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btn = new () { App = ApplicationImpl.Instance,
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Text = "_Test", IsDefault = true };
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btn.Layout ();
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Assert.Equal (new (10, 1), btn.TextFormatter.ConstrainToSize);
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btn.BeginInit ();
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btn.EndInit ();
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Assert.Equal ('_', btn.HotKeySpecifier.Value);
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Assert.Equal (Key.T, btn.HotKey);
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Assert.Equal ("_Test", btn.Text);
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Assert.Equal (
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$"{Glyphs.LeftBracket}{Glyphs.LeftDefaultIndicator} Test {Glyphs.RightDefaultIndicator}{Glyphs.RightBracket}",
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btn.TextFormatter.Format ()
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);
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Assert.True (btn.IsDefault);
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Assert.Equal (Alignment.Center, btn.TextAlignment);
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Assert.True (btn.CanFocus);
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btn.SetRelativeLayout (new (100, 100));
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// 0123456789012345678901234567890123456789
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// [* Test *]
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Assert.Equal ('_', btn.HotKeySpecifier.Value);
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Assert.Equal (10, btn.TextFormatter.Format ().Length);
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Assert.Equal (new (10, 1), btn.TextFormatter.ConstrainToSize);
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Assert.Equal (new (10, 1), btn.GetContentSize ());
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Assert.Equal (new (0, 0, 10, 1), btn.Viewport);
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Assert.Equal (new (0, 0, 10, 1), btn.Frame);
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Assert.Equal (KeyCode.T, btn.HotKey);
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btn.Dispose ();
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btn = new () { App = ApplicationImpl.Instance,
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X = 1, Y = 2, Text = "_abc", IsDefault = true };
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btn.BeginInit ();
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btn.EndInit ();
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Assert.Equal ("_abc", btn.Text);
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Assert.Equal (Key.A, btn.HotKey);
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Assert.Equal (
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$"{Glyphs.LeftBracket}{Glyphs.LeftDefaultIndicator} abc {Glyphs.RightDefaultIndicator}{Glyphs.RightBracket}",
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btn.TextFormatter.Format ()
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);
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Assert.True (btn.IsDefault);
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Assert.Equal (Alignment.Center, btn.TextAlignment);
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Assert.Equal ('_', btn.HotKeySpecifier.Value);
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Assert.True (btn.CanFocus);
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ApplicationImpl.Instance.Driver?.ClearContents ();
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btn.Draw ();
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expected = @$"
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{Glyphs.LeftBracket}{Glyphs.LeftDefaultIndicator} abc {Glyphs.RightDefaultIndicator}{Glyphs.RightBracket}
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";
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DriverAssert.AssertDriverContentsWithFrameAre (expected, output, ApplicationImpl.Instance.Driver);
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Assert.Equal (new (0, 0, 9, 1), btn.Viewport);
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Assert.Equal (new (1, 2, 9, 1), btn.Frame);
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btn.Dispose ();
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}
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/// <summary>
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/// This test demonstrates how to change the activation key for Button as described in the README.md keyboard
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/// handling section
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/// </summary>
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[Fact]
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[AutoInitShutdown]
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public void KeyBindingExample ()
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{
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var pressed = 0;
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var btn = new Button { Text = "Press Me" };
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btn.Accepting += (s, e) => pressed++;
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// The Button class supports the Default and Accept command
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Assert.Contains (Command.HotKey, btn.GetSupportedCommands ());
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Assert.Contains (Command.Accept, btn.GetSupportedCommands ());
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var top = new Toplevel ();
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top.Add (btn);
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Application.Begin (top);
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Assert.True (btn.HasFocus);
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// default keybinding is Space which results in Command.Accept (when focused)
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Application.RaiseKeyDownEvent (new ((KeyCode)' '));
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Assert.Equal (1, pressed);
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// remove the default keybinding (Space)
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btn.KeyBindings.Clear (Command.HotKey);
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btn.KeyBindings.Clear (Command.Accept);
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// After clearing the default keystroke the Space button no longer does anything for the Button
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Application.RaiseKeyDownEvent (new ((KeyCode)' '));
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Assert.Equal (1, pressed);
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// Set a new binding of b for the click (Accept) event
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btn.KeyBindings.Add (Key.B, Command.HotKey); // b will now trigger the Accept command (when focused or not)
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// now pressing B should call the button click event
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Application.RaiseKeyDownEvent (Key.B);
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Assert.Equal (2, pressed);
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// now pressing Shift-B should NOT call the button click event
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Application.RaiseKeyDownEvent (Key.B.WithShift);
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Assert.Equal (2, pressed);
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// now pressing Alt-B should NOT call the button click event
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Application.RaiseKeyDownEvent (Key.B.WithAlt);
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Assert.Equal (2, pressed);
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// now pressing Shift-Alt-B should NOT call the button click event
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Application.RaiseKeyDownEvent (Key.B.WithAlt.WithShift);
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Assert.Equal (2, pressed);
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top.Dispose ();
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}
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[Fact]
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[AutoInitShutdown]
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public void KeyBindings_Command ()
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{
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var clicked = false;
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var btn = new Button { Text = "_Test" };
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btn.Accepting += (s, e) => clicked = true;
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var top = new Toplevel ();
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top.Add (btn);
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Application.Begin (top);
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// Hot key. Both alone and with alt
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Assert.Equal (KeyCode.T, btn.HotKey);
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Assert.False (btn.NewKeyDownEvent (Key.T)); // Button processes, but does not handle
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Assert.True (clicked);
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clicked = false;
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Assert.False (btn.NewKeyDownEvent (Key.T.WithAlt));
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Assert.True (clicked);
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clicked = false;
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Assert.False (btn.NewKeyDownEvent (btn.HotKey));
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Assert.True (clicked);
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clicked = false;
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Assert.False (btn.NewKeyDownEvent (btn.HotKey));
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Assert.True (clicked);
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clicked = false;
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// IsDefault = false
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// Space and Enter should work
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Assert.False (btn.IsDefault);
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Assert.False (btn.NewKeyDownEvent (Key.Enter));
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Assert.True (clicked);
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clicked = false;
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// IsDefault = true
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// Space and Enter should work
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btn.IsDefault = true;
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Assert.False (btn.NewKeyDownEvent (Key.Enter));
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Assert.True (clicked);
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clicked = false;
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// Toplevel does not handle Enter, so it should get passed on to button
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Assert.False (Application.TopRunnable.NewKeyDownEvent (Key.Enter));
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Assert.True (clicked);
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clicked = false;
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// Direct
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Assert.False (btn.NewKeyDownEvent (Key.Enter));
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Assert.True (clicked);
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clicked = false;
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Assert.False (btn.NewKeyDownEvent (Key.Space));
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Assert.True (clicked);
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clicked = false;
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Assert.False (btn.NewKeyDownEvent (new ((KeyCode)'T')));
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Assert.True (clicked);
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clicked = false;
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// Change hotkey:
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btn.Text = "Te_st";
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Assert.False (btn.NewKeyDownEvent (btn.HotKey));
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Assert.True (clicked);
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clicked = false;
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top.Dispose ();
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}
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[Fact]
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[AutoInitShutdown]
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public void Update_Parameterless_Only_On_Or_After_Initialize ()
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{
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Button.DefaultShadow = ShadowStyle.None;
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var btn = new Button { X = Pos.Center (), Y = Pos.Center (), Text = "Say Hello 你" };
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var win = new Window { Width = Dim.Fill (), Height = Dim.Fill () };
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win.Add (btn);
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var top = new Toplevel ();
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top.Add (win);
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Assert.False (btn.IsInitialized);
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Application.Begin (top);
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Application.Driver?.SetScreenSize (30, 5);
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Assert.True (btn.IsInitialized);
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Assert.Equal ("Say Hello 你", btn.Text);
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Assert.Equal ($"{Glyphs.LeftBracket} {btn.Text} {Glyphs.RightBracket}", btn.TextFormatter.Text);
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Assert.Equal (new (0, 0, 16, 1), btn.Viewport);
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var btnTxt = $"{Glyphs.LeftBracket} {btn.Text} {Glyphs.RightBracket}";
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var expected = @$"
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┌────────────────────────────┐
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│ │
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│ {btnTxt} │
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│ │
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└────────────────────────────┘
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";
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Rectangle pos = DriverAssert.AssertDriverContentsWithFrameAre (expected, output);
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Assert.Equal (new (0, 0, 30, 5), pos);
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top.Dispose ();
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}
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[Theory]
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[InlineData (MouseFlags.Button1Pressed, MouseFlags.Button1Released, MouseFlags.Button1Clicked)]
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[InlineData (MouseFlags.Button2Pressed, MouseFlags.Button2Released, MouseFlags.Button2Clicked)]
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[InlineData (MouseFlags.Button3Pressed, MouseFlags.Button3Released, MouseFlags.Button3Clicked)]
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[InlineData (MouseFlags.Button4Pressed, MouseFlags.Button4Released, MouseFlags.Button4Clicked)]
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public void WantContinuousButtonPressed_True_ButtonClick_Accepts (MouseFlags pressed, MouseFlags released, MouseFlags clicked)
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{
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var me = new MouseEventArgs ();
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var button = new Button
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{
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Width = 1,
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Height = 1,
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WantContinuousButtonPressed = true
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};
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var selectingCount = 0;
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button.Selecting += (s, e) => selectingCount++;
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var acceptedCount = 0;
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button.Accepting += (s, e) =>
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{
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acceptedCount++;
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e.Handled = true;
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};
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me = new ();
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me.Flags = pressed;
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button.NewMouseEvent (me);
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Assert.Equal (0, selectingCount);
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Assert.Equal (0, acceptedCount);
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me = new ();
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me.Flags = released;
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button.NewMouseEvent (me);
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Assert.Equal (0, selectingCount);
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Assert.Equal (0, acceptedCount);
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me = new ();
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me.Flags = clicked;
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button.NewMouseEvent (me);
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Assert.Equal (1, selectingCount);
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Assert.Equal (1, acceptedCount);
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button.Dispose ();
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}
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[Theory]
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[InlineData (MouseFlags.Button1Pressed, MouseFlags.Button1Released)]
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[InlineData (MouseFlags.Button2Pressed, MouseFlags.Button2Released)]
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[InlineData (MouseFlags.Button3Pressed, MouseFlags.Button3Released)]
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[InlineData (MouseFlags.Button4Pressed, MouseFlags.Button4Released)]
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public void WantContinuousButtonPressed_True_ButtonPressRelease_Does_Not_Raise_Selected_Or_Accepted (MouseFlags pressed, MouseFlags released)
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{
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var me = new MouseEventArgs ();
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var button = new Button
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{
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Width = 1,
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Height = 1,
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WantContinuousButtonPressed = true
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};
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var acceptedCount = 0;
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button.Accepting += (s, e) =>
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{
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acceptedCount++;
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e.Handled = true;
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};
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var selectingCount = 0;
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button.Selecting += (s, e) =>
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{
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selectingCount++;
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e.Handled = true;
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};
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me.Flags = pressed;
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button.NewMouseEvent (me);
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Assert.Equal (0, acceptedCount);
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Assert.Equal (0, selectingCount);
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me.Flags = released;
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button.NewMouseEvent (me);
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Assert.Equal (0, acceptedCount);
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Assert.Equal (0, selectingCount);
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button.Dispose ();
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}
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}
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