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Terminal.Gui/UnitTests/TextFieldTests.cs

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C#
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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 (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);
// now delete the C
tf.ProcessKey (new KeyEvent (Key.Backspace, new KeyModifiers ()));
Assert.Equal ("AB", tf.Text);
// then delete the B
tf.ProcessKey (new KeyEvent (Key.Backspace, new KeyModifiers ()));
Assert.Equal ("A", tf.Text);
// then delete the A
tf.ProcessKey (new KeyEvent (Key.Backspace, new KeyModifiers ()));
Assert.Equal ("", tf.Text);
}
[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);
}
}
}
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