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Terminal.Gui/UnitTests/TextFieldTests.cs
Thomas Nind ea7981dc59 Adds Key Binding support. Also refactors Autocomplete and Undo/Redo. (#1556) 
* Refactored ProcessKey to use public methods for case logic

* Added KeyBinding class

* Refactored key binding to split key->command from command->implementation

This reduces duplication and simplifies the API

* Finishing key bindings implementation in ListView.

* Adding more unit tests to the ListView.

* Added key bindings to the Button and more features.

* Replaces Action for Func<KeyEvent, bool> on CommandImplementations.

* Allowing commands to have any number of arguments.

* Implementing key bindings on Checkbox view.

* Added test for changing HotKey in Button and made ReplaceKeyBinding protected

* Changed `CommandImplementations` to `Func<KeyEvent, bool>` to better understand current command implementations

* Implementing key bindings in ComboBox.

* Renamed Command keys and fixed ComboBox issues:

- Fixed pressing Esc in ListAndCombos scenario without selecting cause an array out of bounds error
- Changed the Esc key in ComboBox to also collapse the list selection
- Added bool return to public virtual method Expand and Collapse (this is a breaking change)

* Implementing key bindings in DateField.

* Organizing some things.

* Implementing key bindings on TimeField.

* No key bindings on FrameView.

* Added keybinding support to TreeView

* Added mouse support and more features.

* Updating NuGet packages.

* Putting text on the same line.

* Changing function command to Func<bool>.

* Added a read only Position, CursorPosition properties and events.

* Keybindings for GraphView

* Added a stream argument to ApplyEdits to only save the edits.

* Implementing key bindings on the HexView.

* Added MenuOpened event and others bug fixes.

* Fixing typo.

* Unifying constructors initializations.

* Implementing keybindings in the Menu.

* Removing unnecessary variable.

* Implementing keybindings in RadioGroup view.

* Changing Home to TopHome and End to BottomEnd.

* Implementing keybindings in the ScrollView.

* Changing the PageLeft and PageRight keybindings.

* Fixing PageLeft and RightPage.

* Removing CleanUp command.

* Key bindings for TabView

* Keybindings for TableView

* Fixed unit tests for PageDown to correctly assign input focus to the TableView

* Fixes the CalculateLeftColumn method avoiding jump two columns on forward moving.

* Fixes #1525. Gives the same backspace behavior as TextView.

* Changes kill-to-start key to work on Linux too.

* Fixes SelectedStart, SelectedText and some cleaning.

* Implementing keybindings in TextField.

* Updated command names and merged as discussed with @BDisp

- Merged LeftItem and LeftChar to Left (same for Right).
- Also renamed Kill to Cut
- Added ScrollLeft / ScrollRight (and renamed ScrollLineUp to just ScrollUp

* Renamed Command.InsertChar to ToggleOverwriteMode and added Enable/Disable

* Removed 'Mode' suffix from toggle overwrite

* Allows navigation to outside a TextView if IsMdiContainer is true.

* Implementing keybindings in Toplevel.

* Fixing null reference exception.

* Changing to keys instances events instead static.

* Transferring the events to the Toplevel.

* Implementing keybindings in TextView.

* Removing static from the QuitKeyChanged and adding unit test.

* Replacing Added with the Initialized event.

* Ignore control characters and other special keys.

* Changing InvokeKeybindings to return Nullable bool and added two more keys to the Toplevel.

* Implementing keybindings in Autocomplete. I had to derive from View.

* Added keybindings menu item to UICatalog

* Added ClearBinding

* Implementing IAutocomplete, abstract Autocomplete and derived TextViewAutocomplete.

* Implementing keybindings in the TextValidateProvider

* Add keybinding to CellActivationKey.

* Fixing some formats.

* Add ObjectActivationKey to the keybindings.

* Made it much easier to implement abstract base `Autocomplete` in other views by moving methods up out of `TextViewAutocomplete` implementation

* Allowing Autocomplete to popup inside or outside the container.

* Fixes the cursor not being showing if the text length is equal to the view width.

* A unit test to prove the 4df5897.

* Removed unused method `GetCursorPosition` from Autocomplete

* Trimmed down implementation specific methods from IAutocomplete

* Fixed xmldoc comment tag

* Format Autocomplete on multiline and fixes wrap settings.

* Adding keys from a to z to avoid the Key.Space on ToString.

* Fixes the vertical position outside the container.

* Adding more key unit tests.

* Changing comment to upper case and proving that doesn't will breaking nothing.

* Replaces Pos.Bottom to Pos.AnchorEnd.

* Fixes popup on resizing.

* Should only using the Pos.Bottom to position outside the view.

* Fixes #1584

* Fixes https://github.com/migueldeicaza/gui.cs/issues/1584#issuecomment-1027987475

* Fixes some bugs with SelectedItem.

* Command must also return a nullable bool.

* Ensures updating the ComboBox text on leaving the control.

* Only with the nullable bool was possible to make the MoveUp and the MoveDown working.

* Added logging of which scenario failed in test

Co-authored-by: BDisp <bd.bdisp@gmail.com>
2022-02-08 10:40:40 -08:00

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using System;
using System.Reflection;
using Xunit;
namespace Terminal.Gui.Views {
public class TextFieldTests {
// This class enables test functions annotated with the [InitShutdown] attribute
// to have a function called before the test function is called and after.
//
// This is necessary because a) Application is a singleton and Init/Shutdown must be called
// as a pair, and b) all unit test functions should be atomic.
[AttributeUsage (AttributeTargets.Class | AttributeTargets.Method, AllowMultiple = false, Inherited = true)]
public class InitShutdown : Xunit.Sdk.BeforeAfterTestAttribute {
public override void Before (MethodInfo methodUnderTest)
{
Application.Init (new FakeDriver (), new FakeMainLoop (() => FakeConsole.ReadKey (true)));
// 1 2 3
// 01234567890123456789012345678901=32 (Length)
TextFieldTests._textField = new TextField ("TAB to jump between text fields.");
}
public override void After (MethodInfo methodUnderTest)
{
TextFieldTests._textField = null;
Application.Shutdown ();
}
}
private static TextField _textField;
[Fact]
[InitShutdown]
public void Changing_SelectedStart_Or_CursorPosition_Update_SelectedLength_And_SelectedText ()
{
_textField.SelectedStart = 2;
Assert.Equal (32, _textField.CursorPosition);
Assert.Equal (30, _textField.SelectedLength);
Assert.Equal ("B to jump between text fields.", _textField.SelectedText);
_textField.CursorPosition = 20;
Assert.Equal (2, _textField.SelectedStart);
Assert.Equal (18, _textField.SelectedLength);
Assert.Equal ("B to jump between ", _textField.SelectedText);
}
[Fact]
[InitShutdown]
public void SelectedStart_With_Value_Less_Than_Minus_One_Changes_To_Minus_One ()
{
_textField.SelectedStart = -2;
Assert.Equal (-1, _textField.SelectedStart);
Assert.Equal (0, _textField.SelectedLength);
Assert.Null (_textField.SelectedText);
}
[Fact]
[InitShutdown]
public void SelectedStart_With_Value_Greater_Than_Text_Length_Changes_To_Text_Length ()
{
_textField.CursorPosition = 2;
_textField.SelectedStart = 33;
Assert.Equal (32, _textField.SelectedStart);
Assert.Equal (30, _textField.SelectedLength);
Assert.Equal ("B to jump between text fields.", _textField.SelectedText);
}
[Fact]
[InitShutdown]
public void SelectedStart_And_CursorPosition_With_Value_Greater_Than_Text_Length_Changes_Both_To_Text_Length ()
{
_textField.CursorPosition = 33;
_textField.SelectedStart = 33;
Assert.Equal (32, _textField.CursorPosition);
Assert.Equal (32, _textField.SelectedStart);
Assert.Equal (0, _textField.SelectedLength);
Assert.Null (_textField.SelectedText);
}
[Fact]
[InitShutdown]
public void SelectedStart_Greater_Than_CursorPosition_All_Selection_Is_Overwritten_On_Typing ()
{
_textField.SelectedStart = 19;
_textField.CursorPosition = 12;
Assert.Equal ("TAB to jump between text fields.", _textField.Text);
_textField.ProcessKey (new KeyEvent ((Key)0x75, new KeyModifiers ())); // u
Assert.Equal ("TAB to jump u text fields.", _textField.Text);
}
[Fact]
[InitShutdown]
public void CursorPosition_With_Value_Less_Than_Zero_Changes_To_Zero ()
{
_textField.CursorPosition = -1;
Assert.Equal (0, _textField.CursorPosition);
Assert.Equal (0, _textField.SelectedLength);
Assert.Null (_textField.SelectedText);
}
[Fact]
[InitShutdown]
public void CursorPosition_With_Value_Greater_Than_Text_Length_Changes_To_Text_Length ()
{
_textField.CursorPosition = 33;
Assert.Equal (32, _textField.CursorPosition);
Assert.Equal (0, _textField.SelectedLength);
Assert.Null (_textField.SelectedText);
}
[Fact]
[InitShutdown]
public void WordForward_With_No_Selection ()
{
_textField.CursorPosition = 0;
var iteration = 0;
while (_textField.CursorPosition < _textField.Text.Length) {
_textField.ProcessKey (new KeyEvent (Key.CursorRight | Key.CtrlMask, new KeyModifiers ()));
switch (iteration) {
case 0:
Assert.Equal (4, _textField.CursorPosition);
Assert.Equal (-1, _textField.SelectedStart);
Assert.Equal (0, _textField.SelectedLength);
Assert.Null (_textField.SelectedText);
break;
case 1:
Assert.Equal (7, _textField.CursorPosition);
Assert.Equal (-1, _textField.SelectedStart);
Assert.Equal (0, _textField.SelectedLength);
Assert.Null (_textField.SelectedText);
break;
case 2:
Assert.Equal (12, _textField.CursorPosition);
Assert.Equal (-1, _textField.SelectedStart);
Assert.Equal (0, _textField.SelectedLength);
Assert.Null (_textField.SelectedText);
break;
case 3:
Assert.Equal (20, _textField.CursorPosition);
Assert.Equal (-1, _textField.SelectedStart);
Assert.Equal (0, _textField.SelectedLength);
Assert.Null (_textField.SelectedText);
break;
case 4:
Assert.Equal (25, _textField.CursorPosition);
Assert.Equal (-1, _textField.SelectedStart);
Assert.Equal (0, _textField.SelectedLength);
Assert.Null (_textField.SelectedText);
break;
case 5:
Assert.Equal (32, _textField.CursorPosition);
Assert.Equal (-1, _textField.SelectedStart);
Assert.Equal (0, _textField.SelectedLength);
Assert.Null (_textField.SelectedText);
break;
}
iteration++;
}
}
[Fact]
[InitShutdown]
public void WordBackward_With_No_Selection ()
{
_textField.CursorPosition = _textField.Text.Length;
var iteration = 0;
while (_textField.CursorPosition > 0) {
_textField.ProcessKey (new KeyEvent (Key.CursorLeft | Key.CtrlMask, new KeyModifiers ()));
switch (iteration) {
case 0:
Assert.Equal (25, _textField.CursorPosition);
Assert.Equal (-1, _textField.SelectedStart);
Assert.Equal (0, _textField.SelectedLength);
Assert.Null (_textField.SelectedText);
break;
case 1:
Assert.Equal (20, _textField.CursorPosition);
Assert.Equal (-1, _textField.SelectedStart);
Assert.Equal (0, _textField.SelectedLength);
Assert.Null (_textField.SelectedText);
break;
case 2:
Assert.Equal (12, _textField.CursorPosition);
Assert.Equal (-1, _textField.SelectedStart);
Assert.Equal (0, _textField.SelectedLength);
Assert.Null (_textField.SelectedText);
break;
case 3:
Assert.Equal (7, _textField.CursorPosition);
Assert.Equal (-1, _textField.SelectedStart);
Assert.Equal (0, _textField.SelectedLength);
Assert.Null (_textField.SelectedText);
break;
case 4:
Assert.Equal (4, _textField.CursorPosition);
Assert.Equal (-1, _textField.SelectedStart);
Assert.Equal (0, _textField.SelectedLength);
Assert.Null (_textField.SelectedText);
break;
case 5:
Assert.Equal (0, _textField.CursorPosition);
Assert.Equal (-1, _textField.SelectedStart);
Assert.Equal (0, _textField.SelectedLength);
Assert.Null (_textField.SelectedText);
break;
}
iteration++;
}
}
[Fact]
[InitShutdown]
public void WordForward_With_Selection ()
{
_textField.CursorPosition = 0;
_textField.SelectedStart = 0;
var iteration = 0;
while (_textField.CursorPosition < _textField.Text.Length) {
_textField.ProcessKey (new KeyEvent (Key.CursorRight | Key.CtrlMask | Key.ShiftMask, new KeyModifiers ()));
switch (iteration) {
case 0:
Assert.Equal (4, _textField.CursorPosition);
Assert.Equal (0, _textField.SelectedStart);
Assert.Equal (4, _textField.SelectedLength);
Assert.Equal ("TAB ", _textField.SelectedText);
break;
case 1:
Assert.Equal (7, _textField.CursorPosition);
Assert.Equal (0, _textField.SelectedStart);
Assert.Equal (7, _textField.SelectedLength);
Assert.Equal ("TAB to ", _textField.SelectedText);
break;
case 2:
Assert.Equal (12, _textField.CursorPosition);
Assert.Equal (0, _textField.SelectedStart);
Assert.Equal (12, _textField.SelectedLength);
Assert.Equal ("TAB to jump ", _textField.SelectedText);
break;
case 3:
Assert.Equal (20, _textField.CursorPosition);
Assert.Equal (0, _textField.SelectedStart);
Assert.Equal (20, _textField.SelectedLength);
Assert.Equal ("TAB to jump between ", _textField.SelectedText);
break;
case 4:
Assert.Equal (25, _textField.CursorPosition);
Assert.Equal (0, _textField.SelectedStart);
Assert.Equal (25, _textField.SelectedLength);
Assert.Equal ("TAB to jump between text ", _textField.SelectedText);
break;
case 5:
Assert.Equal (32, _textField.CursorPosition);
Assert.Equal (0, _textField.SelectedStart);
Assert.Equal (32, _textField.SelectedLength);
Assert.Equal ("TAB to jump between text fields.", _textField.SelectedText);
break;
}
iteration++;
}
}
[Fact]
[InitShutdown]
public void WordBackward_With_Selection ()
{
_textField.CursorPosition = _textField.Text.Length;
_textField.SelectedStart = _textField.Text.Length;
var iteration = 0;
while (_textField.CursorPosition > 0) {
_textField.ProcessKey (new KeyEvent (Key.CursorLeft | Key.CtrlMask | Key.ShiftMask, new KeyModifiers ()));
switch (iteration) {
case 0:
Assert.Equal (25, _textField.CursorPosition);
Assert.Equal (32, _textField.SelectedStart);
Assert.Equal (7, _textField.SelectedLength);
Assert.Equal ("fields.", _textField.SelectedText);
break;
case 1:
Assert.Equal (20, _textField.CursorPosition);
Assert.Equal (32, _textField.SelectedStart);
Assert.Equal (12, _textField.SelectedLength);
Assert.Equal ("text fields.", _textField.SelectedText);
break;
case 2:
Assert.Equal (12, _textField.CursorPosition);
Assert.Equal (32, _textField.SelectedStart);
Assert.Equal (20, _textField.SelectedLength);
Assert.Equal ("between text fields.", _textField.SelectedText);
break;
case 3:
Assert.Equal (7, _textField.CursorPosition);
Assert.Equal (32, _textField.SelectedStart);
Assert.Equal (25, _textField.SelectedLength);
Assert.Equal ("jump between text fields.", _textField.SelectedText);
break;
case 4:
Assert.Equal (4, _textField.CursorPosition);
Assert.Equal (32, _textField.SelectedStart);
Assert.Equal (28, _textField.SelectedLength);
Assert.Equal ("to jump between text fields.", _textField.SelectedText);
break;
case 5:
Assert.Equal (0, _textField.CursorPosition);
Assert.Equal (32, _textField.SelectedStart);
Assert.Equal (32, _textField.SelectedLength);
Assert.Equal ("TAB to jump between text fields.", _textField.SelectedText);
break;
}
iteration++;
}
}
[Fact]
[InitShutdown]
public void WordForward_With_The_Same_Values_For_SelectedStart_And_CursorPosition_And_Not_Starting_At_Beginning_Of_The_Text ()
{
_textField.CursorPosition = 10;
_textField.SelectedStart = 10;
var iteration = 0;
while (_textField.CursorPosition < _textField.Text.Length) {
_textField.ProcessKey (new KeyEvent (Key.CursorRight | Key.CtrlMask | Key.ShiftMask, new KeyModifiers ()));
switch (iteration) {
case 0:
Assert.Equal (12, _textField.CursorPosition);
Assert.Equal (10, _textField.SelectedStart);
Assert.Equal (2, _textField.SelectedLength);
Assert.Equal ("p ", _textField.SelectedText);
break;
case 1:
Assert.Equal (20, _textField.CursorPosition);
Assert.Equal (10, _textField.SelectedStart);
Assert.Equal (10, _textField.SelectedLength);
Assert.Equal ("p between ", _textField.SelectedText);
break;
case 2:
Assert.Equal (25, _textField.CursorPosition);
Assert.Equal (10, _textField.SelectedStart);
Assert.Equal (15, _textField.SelectedLength);
Assert.Equal ("p between text ", _textField.SelectedText);
break;
case 3:
Assert.Equal (32, _textField.CursorPosition);
Assert.Equal (10, _textField.SelectedStart);
Assert.Equal (22, _textField.SelectedLength);
Assert.Equal ("p between text fields.", _textField.SelectedText);
break;
}
iteration++;
}
}
[Fact]
[InitShutdown]
public void WordBackward_With_The_Same_Values_For_SelectedStart_And_CursorPosition_And_Not_Starting_At_Beginning_Of_The_Text ()
{
_textField.CursorPosition = 10;
_textField.SelectedStart = 10;
var iteration = 0;
while (_textField.CursorPosition > 0) {
_textField.ProcessKey (new KeyEvent (Key.CursorLeft | Key.CtrlMask | Key.ShiftMask, new KeyModifiers ()));
switch (iteration) {
case 0:
Assert.Equal (7, _textField.CursorPosition);
Assert.Equal (10, _textField.SelectedStart);
Assert.Equal (3, _textField.SelectedLength);
Assert.Equal ("jum", _textField.SelectedText);
break;
case 1:
Assert.Equal (4, _textField.CursorPosition);
Assert.Equal (10, _textField.SelectedStart);
Assert.Equal (6, _textField.SelectedLength);
Assert.Equal ("to jum", _textField.SelectedText);
break;
case 2:
Assert.Equal (0, _textField.CursorPosition);
Assert.Equal (10, _textField.SelectedStart);
Assert.Equal (10, _textField.SelectedLength);
Assert.Equal ("TAB to jum", _textField.SelectedText);
break;
}
iteration++;
}
}
[Fact]
[InitShutdown]
public void WordForward_With_No_Selection_And_With_More_Than_Only_One_Whitespace_And_With_Only_One_Letter ()
{
// 1 2 3 4 5
// 0123456789012345678901234567890123456789012345678901234=55 (Length)
_textField.Text = "TAB t o jump b etween t ext f ields .";
_textField.CursorPosition = 0;
var iteration = 0;
while (_textField.CursorPosition < _textField.Text.Length) {
_textField.ProcessKey (new KeyEvent (Key.CursorRight | Key.CtrlMask, new KeyModifiers ()));
switch (iteration) {
case 0:
Assert.Equal (6, _textField.CursorPosition);
Assert.Equal (-1, _textField.SelectedStart);
Assert.Equal (0, _textField.SelectedLength);
Assert.Null (_textField.SelectedText);
break;
case 1:
Assert.Equal (9, _textField.CursorPosition);
Assert.Equal (-1, _textField.SelectedStart);
Assert.Equal (0, _textField.SelectedLength);
Assert.Null (_textField.SelectedText);
break;
case 2:
Assert.Equal (12, _textField.CursorPosition);
Assert.Equal (-1, _textField.SelectedStart);
Assert.Equal (0, _textField.SelectedLength);
Assert.Null (_textField.SelectedText);
break;
case 3:
Assert.Equal (25, _textField.CursorPosition);
Assert.Equal (-1, _textField.SelectedStart);
Assert.Equal (0, _textField.SelectedLength);
Assert.Null (_textField.SelectedText);
break;
case 4:
Assert.Equal (28, _textField.CursorPosition);
Assert.Equal (-1, _textField.SelectedStart);
Assert.Equal (0, _textField.SelectedLength);
Assert.Null (_textField.SelectedText);
break;
case 5:
Assert.Equal (38, _textField.CursorPosition);
Assert.Equal (-1, _textField.SelectedStart);
Assert.Equal (0, _textField.SelectedLength);
Assert.Null (_textField.SelectedText);
break;
case 6:
Assert.Equal (40, _textField.CursorPosition);
Assert.Equal (-1, _textField.SelectedStart);
Assert.Equal (0, _textField.SelectedLength);
Assert.Null (_textField.SelectedText);
break;
case 7:
Assert.Equal (46, _textField.CursorPosition);
Assert.Equal (-1, _textField.SelectedStart);
Assert.Equal (0, _textField.SelectedLength);
Assert.Null (_textField.SelectedText);
break;
case 8:
Assert.Equal (48, _textField.CursorPosition);
Assert.Equal (-1, _textField.SelectedStart);
Assert.Equal (0, _textField.SelectedLength);
Assert.Null (_textField.SelectedText);
break;
case 9:
Assert.Equal (54, _textField.CursorPosition);
Assert.Equal (-1, _textField.SelectedStart);
Assert.Equal (0, _textField.SelectedLength);
Assert.Null (_textField.SelectedText);
break;
case 10:
Assert.Equal (55, _textField.CursorPosition);
Assert.Equal (-1, _textField.SelectedStart);
Assert.Equal (0, _textField.SelectedLength);
Assert.Null (_textField.SelectedText);
break;
}
iteration++;
}
}
[Fact]
[InitShutdown]
public void WordBackward_With_No_Selection_And_With_More_Than_Only_One_Whitespace_And_With_Only_One_Letter ()
{
// 1 2 3 4 5
// 0123456789012345678901234567890123456789012345678901234=55 (Length)
_textField.Text = "TAB t o jump b etween t ext f ields .";
_textField.CursorPosition = _textField.Text.Length;
var iteration = 0;
while (_textField.CursorPosition > 0) {
_textField.ProcessKey (new KeyEvent (Key.CursorLeft | Key.CtrlMask, new KeyModifiers ()));
switch (iteration) {
case 0:
Assert.Equal (54, _textField.CursorPosition);
Assert.Equal (-1, _textField.SelectedStart);
Assert.Equal (0, _textField.SelectedLength);
Assert.Null (_textField.SelectedText);
break;
case 1:
Assert.Equal (48, _textField.CursorPosition);
Assert.Equal (-1, _textField.SelectedStart);
Assert.Equal (0, _textField.SelectedLength);
Assert.Null (_textField.SelectedText);
break;
case 2:
Assert.Equal (46, _textField.CursorPosition);
Assert.Equal (-1, _textField.SelectedStart);
Assert.Equal (0, _textField.SelectedLength);
Assert.Null (_textField.SelectedText);
break;
case 3:
Assert.Equal (40, _textField.CursorPosition);
Assert.Equal (-1, _textField.SelectedStart);
Assert.Equal (0, _textField.SelectedLength);
Assert.Null (_textField.SelectedText);
break;
case 4:
Assert.Equal (38, _textField.CursorPosition);
Assert.Equal (-1, _textField.SelectedStart);
Assert.Equal (0, _textField.SelectedLength);
Assert.Null (_textField.SelectedText);
break;
case 5:
Assert.Equal (28, _textField.CursorPosition);
Assert.Equal (-1, _textField.SelectedStart);
Assert.Equal (0, _textField.SelectedLength);
Assert.Null (_textField.SelectedText);
break;
case 6:
Assert.Equal (25, _textField.CursorPosition);
Assert.Equal (-1, _textField.SelectedStart);
Assert.Equal (0, _textField.SelectedLength);
Assert.Null (_textField.SelectedText);
break;
case 7:
Assert.Equal (12, _textField.CursorPosition);
Assert.Equal (-1, _textField.SelectedStart);
Assert.Equal (0, _textField.SelectedLength);
Assert.Null (_textField.SelectedText);
break;
case 8:
Assert.Equal (9, _textField.CursorPosition);
Assert.Equal (-1, _textField.SelectedStart);
Assert.Equal (0, _textField.SelectedLength);
Assert.Null (_textField.SelectedText);
break;
case 9:
Assert.Equal (6, _textField.CursorPosition);
Assert.Equal (-1, _textField.SelectedStart);
Assert.Equal (0, _textField.SelectedLength);
Assert.Null (_textField.SelectedText);
break;
case 10:
Assert.Equal (0, _textField.CursorPosition);
Assert.Equal (-1, _textField.SelectedStart);
Assert.Equal (0, _textField.SelectedLength);
Assert.Null (_textField.SelectedText);
break;
}
iteration++;
}
}
[Fact]
[InitShutdown]
public void Copy_Or_Cut_Null_If_No_Selection ()
{
_textField.SelectedStart = -1;
_textField.Copy ();
Assert.Null (_textField.SelectedText);
_textField.Cut ();
Assert.Null (_textField.SelectedText);
}
[Fact]
[InitShutdown]
public void Copy_Or_Cut_Not_Null_If_Has_Selection ()
{
_textField.SelectedStart = 20;
_textField.CursorPosition = 24;
_textField.Copy ();
Assert.Equal ("text", _textField.SelectedText);
_textField.Cut ();
Assert.Null (_textField.SelectedText);
}
[Fact]
[InitShutdown]
public void Copy_Or_Cut_And_Paste_With_Selection ()
{
_textField.SelectedStart = 20;
_textField.CursorPosition = 24;
_textField.Copy ();
Assert.Equal ("text", _textField.SelectedText);
Assert.Equal ("TAB to jump between text fields.", _textField.Text);
_textField.Paste ();
Assert.Equal ("TAB to jump between text fields.", _textField.Text);
_textField.SelectedStart = 20;
_textField.Cut ();
_textField.Paste ();
Assert.Equal ("TAB to jump between text fields.", _textField.Text);
}
[Fact]
[InitShutdown]
public void Copy_Or_Cut_And_Paste_With_No_Selection ()
{
_textField.SelectedStart = 20;
_textField.CursorPosition = 24;
_textField.Copy ();
Assert.Equal ("text", _textField.SelectedText);
Assert.Equal ("TAB to jump between text fields.", _textField.Text);
_textField.SelectedStart = -1;
_textField.Paste ();
Assert.Equal ("TAB to jump between texttext fields.", _textField.Text);
_textField.SelectedStart = 24;
_textField.Cut ();
Assert.Null (_textField.SelectedText);
Assert.Equal ("TAB to jump between text fields.", _textField.Text);
_textField.SelectedStart = -1;
_textField.Paste ();
Assert.Equal ("TAB to jump between texttext fields.", _textField.Text);
}
[Fact]
[InitShutdown]
public void Copy_Or_Cut__Not_Allowed_If_Secret_Is_True ()
{
_textField.Secret = true;
_textField.SelectedStart = 20;
_textField.CursorPosition = 24;
_textField.Copy ();
Assert.Null (_textField.SelectedText);
_textField.Cut ();
Assert.Null (_textField.SelectedText);
_textField.Secret = false;
_textField.Copy ();
Assert.Equal ("text", _textField.SelectedText);
_textField.Cut ();
Assert.Null (_textField.SelectedText);
}
[Fact]
[InitShutdown]
public void Paste_Always_Clear_The_SelectedText ()
{
_textField.SelectedStart = 20;
_textField.CursorPosition = 24;
_textField.Copy ();
Assert.Equal ("text", _textField.SelectedText);
_textField.Paste ();
Assert.Null (_textField.SelectedText);
}
[Fact]
[InitShutdown]
public void TextChanging_Event ()
{
bool cancel = true;
_textField.TextChanging += (e) => {
Assert.Equal ("changing", e.NewText);
if (cancel) {
e.Cancel = true;
}
};
_textField.Text = "changing";
Assert.Equal ("TAB to jump between text fields.", _textField.Text);
cancel = false;
_textField.Text = "changing";
Assert.Equal ("changing", _textField.Text);
}
[Fact]
[InitShutdown]
public void TextChanged_Event ()
{
_textField.TextChanged += (e) => {
Assert.Equal ("TAB to jump between text fields.", e);
};
_textField.Text = "changed";
Assert.Equal ("changed", _textField.Text);
}
[Fact]
[InitShutdown]
public void Used_Is_True_By_Default ()
{
_textField.CursorPosition = 10;
Assert.Equal ("TAB to jump between text fields.", _textField.Text);
_textField.ProcessKey (new KeyEvent ((Key)0x75, new KeyModifiers ())); // u
Assert.Equal ("TAB to jumup between text fields.", _textField.Text);
_textField.ProcessKey (new KeyEvent ((Key)0x73, new KeyModifiers ())); // s
Assert.Equal ("TAB to jumusp between text fields.", _textField.Text);
_textField.ProcessKey (new KeyEvent ((Key)0x65, new KeyModifiers ())); // e
Assert.Equal ("TAB to jumusep between text fields.", _textField.Text);
_textField.ProcessKey (new KeyEvent ((Key)0x64, new KeyModifiers ())); // d
Assert.Equal ("TAB to jumusedp between text fields.", _textField.Text);
}
[Fact]
[InitShutdown]
public void Used_Is_False ()
{
_textField.Used = false;
_textField.CursorPosition = 10;
Assert.Equal ("TAB to jump between text fields.", _textField.Text);
_textField.ProcessKey (new KeyEvent ((Key)0x75, new KeyModifiers ())); // u
Assert.Equal ("TAB to jumu between text fields.", _textField.Text);
_textField.ProcessKey (new KeyEvent ((Key)0x73, new KeyModifiers ())); // s
Assert.Equal ("TAB to jumusbetween text fields.", _textField.Text);
_textField.ProcessKey (new KeyEvent ((Key)0x65, new KeyModifiers ())); // e
Assert.Equal ("TAB to jumuseetween text fields.", _textField.Text);
_textField.ProcessKey (new KeyEvent ((Key)0x64, new KeyModifiers ())); // d
Assert.Equal ("TAB to jumusedtween text fields.", _textField.Text);
}
[Fact]
public void ProcessKey_Backspace_From_End ()
{
var tf = new TextField ("ABC");
tf.EnsureFocus ();
Assert.Equal ("ABC", tf.Text);
Assert.Equal (3, tf.CursorPosition);
// now delete the C
tf.ProcessKey (new KeyEvent (Key.Backspace, new KeyModifiers ()));
Assert.Equal ("AB", tf.Text);
Assert.Equal (2, tf.CursorPosition);
// then delete the B
tf.ProcessKey (new KeyEvent (Key.Backspace, new KeyModifiers ()));
Assert.Equal ("A", tf.Text);
Assert.Equal (1, tf.CursorPosition);
// then delete the A
tf.ProcessKey (new KeyEvent (Key.Backspace, new KeyModifiers ()));
Assert.Equal ("", tf.Text);
Assert.Equal (0, tf.CursorPosition);
}
[Fact]
public void ProcessKey_Backspace_From_Middle ()
{
var tf = new TextField ("ABC");
tf.EnsureFocus ();
tf.CursorPosition = 2;
Assert.Equal ("ABC", tf.Text);
// now delete the B
tf.ProcessKey (new KeyEvent (Key.Backspace, new KeyModifiers ()));
Assert.Equal ("AC", tf.Text);
// then delete the A
tf.ProcessKey (new KeyEvent (Key.Backspace, new KeyModifiers ()));
Assert.Equal ("C", tf.Text);
// then delete nothing
tf.ProcessKey (new KeyEvent (Key.Backspace, new KeyModifiers ()));
Assert.Equal ("C", tf.Text);
// now delete the C
tf.CursorPosition = 1;
tf.ProcessKey (new KeyEvent (Key.Backspace, new KeyModifiers ()));
Assert.Equal ("", tf.Text);
}
[Fact]
public void Cancel_TextChanging_ThenBackspace ()
{
var tf = new TextField ();
tf.EnsureFocus ();
tf.ProcessKey (new KeyEvent (Key.A, new KeyModifiers ()));
Assert.Equal ("A", tf.Text);
// cancel the next keystroke
tf.TextChanging += (e) => e.Cancel = e.NewText == "AB";
tf.ProcessKey (new KeyEvent (Key.B, new KeyModifiers ()));
// B was canceled so should just be A
Assert.Equal ("A", tf.Text);
// now delete the A
tf.ProcessKey (new KeyEvent (Key.Backspace, new KeyModifiers ()));
Assert.Equal ("", tf.Text);
}
[Fact]
[InitShutdown]
public void Text_Replaces_Tabs_With_Empty_String ()
{
_textField.Text = "\t\tTAB to jump between text fields.";
Assert.Equal ("TAB to jump between text fields.", _textField.Text);
_textField.Text = "";
Clipboard.Contents = "\t\tTAB to jump between text fields.";
_textField.Paste ();
Assert.Equal ("TAB to jump between text fields.", _textField.Text);
}
[Fact]
[InitShutdown]
public void TextField_SpaceHandling ()
{
var tf = new TextField () {
Width = 10,
Text = " "
};
MouseEvent ev = new MouseEvent () {
X = 0,
Y = 0,
Flags = MouseFlags.Button1DoubleClicked,
};
tf.MouseEvent (ev);
Assert.Equal (1, tf.SelectedLength);
ev = new MouseEvent () {
X = 1,
Y = 0,
Flags = MouseFlags.Button1DoubleClicked,
};
tf.MouseEvent (ev);
Assert.Equal (1, tf.SelectedLength);
}
[Fact]
[InitShutdown]
public void CanFocus_False_Wont_Focus_With_Mouse ()
{
var top = Application.Top;
var tf = new TextField () {
Width = Dim.Fill (),
CanFocus = false,
ReadOnly = true,
Text = "some text"
};
var fv = new FrameView ("I shouldn't get focus") {
Width = Dim.Fill (),
Height = Dim.Fill (),
CanFocus = false,
};
fv.Add (tf);
top.Add (fv);
Application.Begin (top);
Assert.False (tf.CanFocus);
Assert.False (tf.HasFocus);
Assert.False (fv.CanFocus);
Assert.False (fv.HasFocus);
tf.MouseEvent (new MouseEvent () {
X = 1,
Y = 0,
Flags = MouseFlags.Button1DoubleClicked
});
Assert.Null (tf.SelectedText);
Assert.False (tf.CanFocus);
Assert.False (tf.HasFocus);
Assert.False (fv.CanFocus);
Assert.False (fv.HasFocus);
Assert.Throws<InvalidOperationException> (() => tf.CanFocus = true);
fv.CanFocus = true;
tf.CanFocus = true;
tf.MouseEvent (new MouseEvent () {
X = 1,
Y = 0,
Flags = MouseFlags.Button1DoubleClicked
});
Assert.Equal ("some ", tf.SelectedText);
Assert.True (tf.CanFocus);
Assert.True (tf.HasFocus);
Assert.True (fv.CanFocus);
Assert.True (fv.HasFocus);
fv.CanFocus = false;
tf.MouseEvent (new MouseEvent () {
X = 1,
Y = 0,
Flags = MouseFlags.Button1DoubleClicked
});
Assert.Equal ("some ", tf.SelectedText); // Setting CanFocus to false don't change the SelectedText
Assert.False (tf.CanFocus);
Assert.False (tf.HasFocus);
Assert.False (fv.CanFocus);
Assert.False (fv.HasFocus);
}
[Fact]
[AutoInitShutdown]
public void KeyBindings_Command ()
{
var tf = new TextField ("This is a test.") { Width = 20 };
Assert.Equal (15, tf.Text.Length);
Assert.Equal (15, tf.CursorPosition);
Assert.False (tf.ReadOnly);
Assert.True (tf.ProcessKey (new KeyEvent (Key.DeleteChar, new KeyModifiers ())));
Assert.Equal ("This is a test.", tf.Text);
tf.CursorPosition = 0;
Assert.True (tf.ProcessKey (new KeyEvent (Key.DeleteChar, new KeyModifiers ())));
Assert.Equal ("his is a test.", tf.Text);
tf.ReadOnly = true;
Assert.True (tf.ProcessKey (new KeyEvent (Key.D | Key.CtrlMask, new KeyModifiers ())));
Assert.Equal ("his is a test.", tf.Text);
Assert.True (tf.ProcessKey (new KeyEvent (Key.Delete, new KeyModifiers ())));
Assert.Equal ("his is a test.", tf.Text);
tf.ReadOnly = false;
tf.CursorPosition = 1;
Assert.True (tf.ProcessKey (new KeyEvent (Key.Backspace, new KeyModifiers ())));
Assert.Equal ("is is a test.", tf.Text);
tf.CursorPosition = 5;
Assert.True (tf.ProcessKey (new KeyEvent (Key.Home | Key.ShiftMask, new KeyModifiers ())));
Assert.Equal ("is is a test.", tf.Text);
Assert.Equal ("is is", tf.SelectedText);
tf.CursorPosition = 5;
tf.SelectedStart = -1;
Assert.Null (tf.SelectedText);
Assert.True (tf.ProcessKey (new KeyEvent (Key.Home | Key.ShiftMask | Key.CtrlMask, new KeyModifiers ())));
Assert.Equal ("is is a test.", tf.Text);
Assert.Equal ("is is", tf.SelectedText);
tf.CursorPosition = 5;
tf.SelectedStart = -1;
Assert.Null (tf.SelectedText);
Assert.True (tf.ProcessKey (new KeyEvent (Key.A | Key.ShiftMask | Key.CtrlMask, new KeyModifiers ())));
Assert.Equal ("is is a test.", tf.Text);
Assert.Equal ("is is", tf.SelectedText);
tf.CursorPosition = 5;
tf.SelectedStart = -1;
Assert.Null (tf.SelectedText);
Assert.True (tf.ProcessKey (new KeyEvent (Key.End | Key.ShiftMask, new KeyModifiers ())));
Assert.Equal ("is is a test.", tf.Text);
Assert.Equal (" a test.", tf.SelectedText);
tf.CursorPosition = 5;
tf.SelectedStart = -1;
Assert.Null (tf.SelectedText);
Assert.True (tf.ProcessKey (new KeyEvent (Key.End | Key.ShiftMask | Key.CtrlMask, new KeyModifiers ())));
Assert.Equal ("is is a test.", tf.Text);
Assert.Equal (" a test.", tf.SelectedText);
tf.CursorPosition = 5;
tf.SelectedStart = -1;
Assert.Null (tf.SelectedText);
Assert.True (tf.ProcessKey (new KeyEvent (Key.E | Key.ShiftMask | Key.CtrlMask, new KeyModifiers ())));
Assert.Equal ("is is a test.", tf.Text);
Assert.Equal (" a test.", tf.SelectedText);
tf.CursorPosition = 5;
tf.SelectedStart = -1;
Assert.Null (tf.SelectedText);
Assert.True (tf.ProcessKey (new KeyEvent (Key.Home, new KeyModifiers ())));
Assert.Equal ("is is a test.", tf.Text);
Assert.Equal (0, tf.CursorPosition);
tf.CursorPosition = 5;
Assert.Null (tf.SelectedText);
Assert.True (tf.ProcessKey (new KeyEvent (Key.Home | Key.CtrlMask, new KeyModifiers ())));
Assert.Equal ("is is a test.", tf.Text);
Assert.Equal (0, tf.CursorPosition);
tf.CursorPosition = 5;
Assert.Null (tf.SelectedText);
Assert.True (tf.ProcessKey (new KeyEvent (Key.A | Key.CtrlMask, new KeyModifiers ())));
Assert.Equal ("is is a test.", tf.Text);
Assert.Equal (0, tf.CursorPosition);
tf.CursorPosition = 5;
tf.SelectedStart = -1;
Assert.Null (tf.SelectedText);
Assert.True (tf.ProcessKey (new KeyEvent (Key.CursorLeft | Key.ShiftMask, new KeyModifiers ())));
Assert.Equal ("is is a test.", tf.Text);
Assert.Equal ("s", tf.SelectedText);
Assert.True (tf.ProcessKey (new KeyEvent (Key.CursorUp | Key.ShiftMask, new KeyModifiers ())));
Assert.Equal ("is is a test.", tf.Text);
Assert.Equal ("is", tf.SelectedText);
Assert.True (tf.ProcessKey (new KeyEvent (Key.CursorRight | Key.ShiftMask, new KeyModifiers ())));
Assert.Equal ("is is a test.", tf.Text);
Assert.Equal ("s", tf.SelectedText);
Assert.True (tf.ProcessKey (new KeyEvent (Key.CursorDown | Key.ShiftMask, new KeyModifiers ())));
Assert.Equal ("is is a test.", tf.Text);
Assert.Null (tf.SelectedText);
tf.CursorPosition = 7;
tf.SelectedStart = -1;
Assert.Null (tf.SelectedText);
Assert.True (tf.ProcessKey (new KeyEvent (Key.CursorLeft | Key.ShiftMask | Key.CtrlMask, new KeyModifiers ())));
Assert.Equal ("is is a test.", tf.Text);
Assert.Equal ("a", tf.SelectedText);
Assert.True (tf.ProcessKey (new KeyEvent (Key.CursorUp | Key.ShiftMask | Key.CtrlMask, new KeyModifiers ())));
Assert.Equal ("is is a test.", tf.Text);
Assert.Equal ("is a", tf.SelectedText);
Assert.True (tf.ProcessKey (new KeyEvent ((Key)((int)'B' + Key.ShiftMask | Key.AltMask), new KeyModifiers ())));
Assert.Equal ("is is a test.", tf.Text);
Assert.Equal ("is is a", tf.SelectedText);
tf.CursorPosition = 3;
tf.SelectedStart = -1;
Assert.Null (tf.SelectedText);
Assert.True (tf.ProcessKey (new KeyEvent (Key.CursorRight | Key.ShiftMask | Key.CtrlMask, new KeyModifiers ())));
Assert.Equal ("is is a test.", tf.Text);
Assert.Equal ("is ", tf.SelectedText);
Assert.True (tf.ProcessKey (new KeyEvent (Key.CursorDown | Key.ShiftMask | Key.CtrlMask, new KeyModifiers ())));
Assert.Equal ("is is a test.", tf.Text);
Assert.Equal ("is a ", tf.SelectedText);
Assert.True (tf.ProcessKey (new KeyEvent ((Key)((int)'F' + Key.ShiftMask | Key.AltMask), new KeyModifiers ())));
Assert.Equal ("is is a test.", tf.Text);
Assert.Equal ("is a test.", tf.SelectedText);
Assert.Equal (13, tf.CursorPosition);
Assert.True (tf.ProcessKey (new KeyEvent (Key.CursorLeft, new KeyModifiers ())));
Assert.Equal ("is is a test.", tf.Text);
Assert.Null (tf.SelectedText);
Assert.Equal (12, tf.CursorPosition);
Assert.True (tf.ProcessKey (new KeyEvent (Key.CursorLeft, new KeyModifiers ())));
Assert.Equal ("is is a test.", tf.Text);
Assert.Equal (11, tf.CursorPosition);
Assert.True (tf.ProcessKey (new KeyEvent (Key.End, new KeyModifiers ())));
Assert.Equal ("is is a test.", tf.Text);
Assert.Equal (13, tf.CursorPosition);
tf.CursorPosition = 0;
Assert.True (tf.ProcessKey (new KeyEvent (Key.End | Key.CtrlMask, new KeyModifiers ())));
Assert.Equal ("is is a test.", tf.Text);
Assert.Equal (13, tf.CursorPosition);
tf.CursorPosition = 0;
Assert.True (tf.ProcessKey (new KeyEvent (Key.E | Key.CtrlMask, new KeyModifiers ())));
Assert.Equal ("is is a test.", tf.Text);
Assert.Equal (13, tf.CursorPosition);
tf.CursorPosition = 0;
Assert.True (tf.ProcessKey (new KeyEvent (Key.CursorRight, new KeyModifiers ())));
Assert.Equal ("is is a test.", tf.Text);
Assert.Equal (1, tf.CursorPosition);
Assert.True (tf.ProcessKey (new KeyEvent (Key.F | Key.CtrlMask, new KeyModifiers ())));
Assert.Equal ("is is a test.", tf.Text);
Assert.Equal (2, tf.CursorPosition);
tf.CursorPosition = 9;
tf.ReadOnly = true;
Assert.True (tf.ProcessKey (new KeyEvent (Key.K | Key.CtrlMask, new KeyModifiers ())));
Assert.Equal ("is is a test.", tf.Text);
tf.ReadOnly = false;
Assert.True (tf.ProcessKey (new KeyEvent (Key.K | Key.CtrlMask, new KeyModifiers ())));
Assert.Equal ("is is a t", tf.Text);
Assert.Equal ("est.", Clipboard.Contents);
Assert.True (tf.ProcessKey (new KeyEvent (Key.Z | Key.CtrlMask, new KeyModifiers ())));
Assert.Equal ("is is a test.", tf.Text);
Assert.True (tf.ProcessKey (new KeyEvent (Key.Y | Key.CtrlMask, new KeyModifiers ())));
Assert.Equal ("is is a t", tf.Text);
Assert.True (tf.ProcessKey (new KeyEvent (Key.Backspace | Key.AltMask, new KeyModifiers ())));
Assert.Equal ("is is a test.", tf.Text);
Assert.True (tf.ProcessKey (new KeyEvent (Key.Y | Key.CtrlMask, new KeyModifiers ())));
Assert.Equal ("is is a t", tf.Text);
Assert.True (tf.ProcessKey (new KeyEvent (Key.CursorLeft | Key.CtrlMask, new KeyModifiers ())));
Assert.Equal ("is is a t", tf.Text);
Assert.Equal (8, tf.CursorPosition);
Assert.True (tf.ProcessKey (new KeyEvent (Key.CursorUp | Key.CtrlMask, new KeyModifiers ())));
Assert.Equal ("is is a t", tf.Text);
Assert.Equal (6, tf.CursorPosition);
Assert.True (tf.ProcessKey (new KeyEvent ((Key)((int)'B' + Key.AltMask), new KeyModifiers ())));
Assert.Equal ("is is a t", tf.Text);
Assert.Equal (3, tf.CursorPosition);
Assert.True (tf.ProcessKey (new KeyEvent (Key.CursorRight | Key.CtrlMask, new KeyModifiers ())));
Assert.Equal ("is is a t", tf.Text);
Assert.Equal (6, tf.CursorPosition);
Assert.True (tf.ProcessKey (new KeyEvent (Key.CursorDown | Key.CtrlMask, new KeyModifiers ())));
Assert.Equal ("is is a t", tf.Text);
Assert.Equal (8, tf.CursorPosition);
Assert.True (tf.ProcessKey (new KeyEvent ((Key)((int)'F' + Key.AltMask), new KeyModifiers ())));
Assert.Equal ("is is a t", tf.Text);
Assert.Equal (9, tf.CursorPosition);
Assert.True (tf.Used);
Assert.True (tf.ProcessKey (new KeyEvent (Key.InsertChar, new KeyModifiers ())));
Assert.Equal ("is is a t", tf.Text);
Assert.Equal (9, tf.CursorPosition);
Assert.False (tf.Used);
tf.SelectedStart = 3;
tf.CursorPosition = 7;
Assert.Equal ("is a", tf.SelectedText);
Assert.Equal ("est.", Clipboard.Contents);
Assert.True (tf.ProcessKey (new KeyEvent (Key.C | Key.CtrlMask, new KeyModifiers ())));
Assert.Equal ("is is a t", tf.Text);
Assert.Equal ("is a", Clipboard.Contents);
Assert.True (tf.ProcessKey (new KeyEvent (Key.X | Key.CtrlMask, new KeyModifiers ())));
Assert.Equal ("is t", tf.Text);
Assert.Equal ("is a", Clipboard.Contents);
Assert.True (tf.ProcessKey (new KeyEvent (Key.V | Key.CtrlMask, new KeyModifiers ())));
Assert.Equal ("is is a t", tf.Text);
Assert.Equal ("is a", Clipboard.Contents);
Assert.Equal (7, tf.CursorPosition);
Assert.True (tf.ProcessKey (new KeyEvent (Key.K | Key.AltMask, new KeyModifiers ())));
Assert.Equal (" t", tf.Text);
Assert.Equal ("is is a", Clipboard.Contents);
tf.Text = "TAB to jump between text fields.";
Assert.Equal (0, tf.CursorPosition);
Assert.True (tf.ProcessKey (new KeyEvent (Key.DeleteChar | Key.CtrlMask, new KeyModifiers ())));
Assert.Equal ("to jump between text fields.", tf.Text);
tf.CursorPosition = tf.Text.Length;
Assert.True (tf.ProcessKey (new KeyEvent (Key.Backspace | Key.CtrlMask, new KeyModifiers ())));
Assert.Equal ("to jump between text ", tf.Text);
}
}
}
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