public void Source_Sets_DisplayStart_And_Position_To_Zero_If_Greater_Than_Source_Length()
{
var hv = new HexView(LoadStream())
{
Width = 10, Height = 5
};
Application.Top.Add(hv);
Application.Begin(Application.Top);
Assert.True(hv.ProcessKey(new KeyEvent(Key.End, new KeyModifiers())));
Assert.Equal(62, hv.DisplayStart);
Assert.Equal(64, hv.Position);
hv.Source = new MemoryStream();
Assert.Equal(0, hv.DisplayStart);
Assert.Equal(0, hv.Position - 1);
hv.Source = LoadStream();
hv.Width = Dim.Fill();
hv.Height = Dim.Fill();
Application.Top.LayoutSubviews();
Assert.Equal(0, hv.DisplayStart);
Assert.Equal(0, hv.Position - 1);
Assert.True(hv.ProcessKey(new KeyEvent(Key.End, new KeyModifiers())));
Assert.Equal(0, hv.DisplayStart);
Assert.Equal(64, hv.Position);
hv.Source = new MemoryStream();
Assert.Equal(0, hv.DisplayStart);
Assert.Equal(0, hv.Position - 1);
}
public void Position_Using_Encoding_Default()
{
var hv = new HexView(LoadStream())
{
Width = 20, Height = 20
};
Assert.Equal(63, hv.Source.Length);
Assert.Equal(63, hv.Source.Position);
Assert.Equal(1, hv.Position);
// left side needed to press twice
Assert.True(hv.ProcessKey(new KeyEvent(Key.CursorRight, new KeyModifiers())));
Assert.Equal(63, hv.Source.Position);
Assert.Equal(1, hv.Position);
Assert.True(hv.ProcessKey(new KeyEvent(Key.CursorRight, new KeyModifiers())));
Assert.Equal(63, hv.Source.Position);
Assert.Equal(2, hv.Position);
// right side only needed to press one time
Assert.True(hv.ProcessKey(new KeyEvent(Key.Enter, new KeyModifiers())));
Assert.Equal(63, hv.Source.Position);
Assert.Equal(2, hv.Position);
Assert.True(hv.ProcessKey(new KeyEvent(Key.CursorLeft, new KeyModifiers())));
Assert.Equal(63, hv.Source.Position);
Assert.Equal(1, hv.Position);
// last position is equal to the source length
Assert.True(hv.ProcessKey(new KeyEvent(Key.End, new KeyModifiers())));
Assert.Equal(63, hv.Source.Position);
Assert.Equal(64, hv.Position);
Assert.Equal(hv.Position - 1, hv.Source.Length);
}
public void DiscardEdits_Method()
{
var hv = new HexView(LoadStream(true))
{
Width = 20, Height = 20
};
Assert.True(hv.ProcessKey(new KeyEvent(Key.D4, new KeyModifiers())));
Assert.True(hv.ProcessKey(new KeyEvent(Key.D1, new KeyModifiers())));
Assert.Single(hv.Edits);
Assert.Equal(65, hv.Edits.ToList() [0].Value);
Assert.Equal('A', (char)hv.Edits.ToList() [0].Value);
Assert.Equal(126, hv.Source.Length);
hv.DiscardEdits();
Assert.Empty(hv.Edits);
}
public void Edited_Event()
{
var hv = new HexView(LoadStream(true))
{
Width = 20, Height = 20
};
KeyValuePair <long, byte> keyValuePair = default;
hv.Edited += (e) => keyValuePair = e;
Assert.True(hv.ProcessKey(new KeyEvent(Key.D4, new KeyModifiers())));
Assert.True(hv.ProcessKey(new KeyEvent(Key.D6, new KeyModifiers())));
Assert.Equal(0, (int)keyValuePair.Key);
Assert.Equal(70, (int)keyValuePair.Value);
Assert.Equal('F', (char)keyValuePair.Value);
}
public void DisplayStart_Source()
{
var hv = new HexView(LoadStream(true))
{
Width = 20,
Height = 20
};
Assert.Equal(0, hv.DisplayStart);
Assert.True(hv.ProcessKey(new KeyEvent(Key.PageDown, new KeyModifiers())));
Assert.Equal(4 * hv.Frame.Height, hv.DisplayStart);
Assert.Equal(hv.Source.Length, hv.Source.Position);
Assert.True(hv.ProcessKey(new KeyEvent(Key.End, new KeyModifiers())));
// already on last page and so the DisplayStart is the same as before
Assert.Equal(4 * hv.Frame.Height, hv.DisplayStart);
Assert.Equal(hv.Source.Length, hv.Source.Position);
}
public void PositionChanged_Event()
{
var hv = new HexView(LoadStream())
{
Width = Dim.Fill(), Height = Dim.Fill()
};
HexView.HexViewEventArgs hexViewEventArgs = null;
hv.PositionChanged += (e) => hexViewEventArgs = e;
Application.Top.Add(hv);
Application.Begin(Application.Top);
Assert.True(hv.ProcessKey(new KeyEvent(Key.CursorRight, new KeyModifiers()))); // left side must press twice
Assert.True(hv.ProcessKey(new KeyEvent(Key.CursorRight, new KeyModifiers())));
Assert.True(hv.ProcessKey(new KeyEvent(Key.CursorDown, new KeyModifiers())));
Assert.Equal(12, hexViewEventArgs.BytesPerLine);
Assert.Equal(new Point(2, 2), hexViewEventArgs.CursorPosition);
Assert.Equal(14, hexViewEventArgs.Position);
}
public void CursorPosition_Encoding_Default()
{
var hv = new HexView(LoadStream())
{
Width = Dim.Fill(), Height = Dim.Fill()
};
Application.Top.Add(hv);
Application.Begin(Application.Top);
Assert.Equal(new Point(1, 1), hv.CursorPosition);
Assert.True(hv.ProcessKey(new KeyEvent(Key.Enter, new KeyModifiers())));
Assert.True(hv.ProcessKey(new KeyEvent(Key.CursorRight | Key.CtrlMask, new KeyModifiers())));
Assert.Equal(hv.CursorPosition.X, hv.BytesPerLine);
Assert.True(hv.ProcessKey(new KeyEvent(Key.Home, new KeyModifiers())));
Assert.True(hv.ProcessKey(new KeyEvent(Key.CursorRight, new KeyModifiers())));
Assert.Equal(new Point(2, 1), hv.CursorPosition);
Assert.True(hv.ProcessKey(new KeyEvent(Key.CursorDown, new KeyModifiers())));
Assert.Equal(new Point(2, 2), hv.CursorPosition);
Assert.True(hv.ProcessKey(new KeyEvent(Key.End, new KeyModifiers())));
var col = hv.CursorPosition.X;
var line = hv.CursorPosition.Y;
var offset = (line - 1) * (hv.BytesPerLine - col);
Assert.Equal(hv.Position, col * line + offset);
}
public void ApplyEdits_With_Argument()
{
byte [] buffer = Encoding.Default.GetBytes("Fest");
var original = new MemoryStream();
original.Write(buffer, 0, buffer.Length);
original.Flush();
var copy = new MemoryStream();
original.Position = 0;
original.CopyTo(copy);
copy.Flush();
var hv = new HexView(copy)
{
Width = Dim.Fill(), Height = Dim.Fill()
};
byte [] readBuffer = new byte [hv.Source.Length];
hv.Source.Position = 0;
hv.Source.Read(readBuffer);
Assert.Equal("Fest", Encoding.Default.GetString(readBuffer));
Assert.True(hv.ProcessKey(new KeyEvent(Key.D5, new KeyModifiers())));
Assert.True(hv.ProcessKey(new KeyEvent(Key.D4, new KeyModifiers())));
readBuffer [hv.Edits.ToList() [0].Key] = hv.Edits.ToList() [0].Value;
Assert.Equal("Test", Encoding.Default.GetString(readBuffer));
hv.ApplyEdits(original);
original.Position = 0;
original.Read(buffer);
copy.Position = 0;
copy.Read(readBuffer);
Assert.Equal("Test", Encoding.Default.GetString(buffer));
Assert.Equal("Test", Encoding.Default.GetString(readBuffer));
Assert.Equal(Encoding.Default.GetString(buffer), Encoding.Default.GetString(readBuffer));
}
public void AllowEdits_Edits_ApplyEdits()
{
var hv = new HexView(LoadStream(true))
{
Width = 20,
Height = 20
};
Assert.Empty(hv.Edits);
hv.AllowEdits = false;
Assert.True(hv.ProcessKey(new KeyEvent(Key.Home, new KeyModifiers())));
Assert.False(hv.ProcessKey(new KeyEvent(Key.A, new KeyModifiers())));
Assert.Empty(hv.Edits);
Assert.Equal(126, hv.Source.Length);
hv.AllowEdits = true;
Assert.True(hv.ProcessKey(new KeyEvent(Key.D4, new KeyModifiers())));
Assert.True(hv.ProcessKey(new KeyEvent(Key.D1, new KeyModifiers())));
Assert.Single(hv.Edits);
Assert.Equal(65, hv.Edits.ToList() [0].Value);
Assert.Equal('A', (char)hv.Edits.ToList() [0].Value);
Assert.Equal(126, hv.Source.Length);
// Appends byte
Assert.True(hv.ProcessKey(new KeyEvent(Key.End, new KeyModifiers())));
Assert.True(hv.ProcessKey(new KeyEvent(Key.D4, new KeyModifiers())));
Assert.True(hv.ProcessKey(new KeyEvent(Key.D2, new KeyModifiers())));
Assert.Equal(2, hv.Edits.Count);
Assert.Equal(66, hv.Edits.ToList() [1].Value);
Assert.Equal('B', (char)hv.Edits.ToList() [1].Value);
Assert.Equal(126, hv.Source.Length);
hv.ApplyEdits();
Assert.Empty(hv.Edits);
Assert.Equal(127, hv.Source.Length);
}
public void KeyBindings_Command()
{
var hv = new HexView(LoadStream())
{
Width = 20, Height = 10
};
Application.Top.Add(hv);
Application.Begin(Application.Top);
Assert.Equal(63, hv.Source.Length);
Assert.Equal(1, hv.Position);
Assert.Equal(4, hv.BytesPerLine);
// right side only needed to press one time
Assert.True(hv.ProcessKey(new KeyEvent(Key.Enter, new KeyModifiers())));
Assert.True(hv.ProcessKey(new KeyEvent(Key.CursorRight, new KeyModifiers())));
Assert.Equal(2, hv.Position);
Assert.True(hv.ProcessKey(new KeyEvent(Key.CursorLeft, new KeyModifiers())));
Assert.Equal(1, hv.Position);
Assert.True(hv.ProcessKey(new KeyEvent(Key.CursorDown, new KeyModifiers())));
Assert.Equal(5, hv.Position);
Assert.True(hv.ProcessKey(new KeyEvent(Key.CursorUp, new KeyModifiers())));
Assert.Equal(1, hv.Position);
Assert.True(hv.ProcessKey(new KeyEvent(Key.V | Key.CtrlMask, new KeyModifiers())));
Assert.Equal(41, hv.Position);
Assert.True(hv.ProcessKey(new KeyEvent('v' + Key.AltMask, new KeyModifiers())));
Assert.Equal(1, hv.Position);
Assert.True(hv.ProcessKey(new KeyEvent(Key.PageDown, new KeyModifiers())));
Assert.Equal(41, hv.Position);
Assert.True(hv.ProcessKey(new KeyEvent(Key.PageUp, new KeyModifiers())));
Assert.Equal(1, hv.Position);
Assert.True(hv.ProcessKey(new KeyEvent(Key.End, new KeyModifiers())));
Assert.Equal(64, hv.Position);
Assert.True(hv.ProcessKey(new KeyEvent(Key.Home, new KeyModifiers())));
Assert.Equal(1, hv.Position);
Assert.True(hv.ProcessKey(new KeyEvent(Key.CursorRight | Key.CtrlMask, new KeyModifiers())));
Assert.Equal(4, hv.Position);
Assert.True(hv.ProcessKey(new KeyEvent(Key.CursorLeft | Key.CtrlMask, new KeyModifiers())));
Assert.Equal(1, hv.Position);
Assert.True(hv.ProcessKey(new KeyEvent(Key.CursorDown | Key.CtrlMask, new KeyModifiers())));
Assert.Equal(37, hv.Position);
Assert.True(hv.ProcessKey(new KeyEvent(Key.CursorUp | Key.CtrlMask, new KeyModifiers())));
Assert.Equal(1, hv.Position);
}