282 lines
12 KiB
C#
282 lines
12 KiB
C#
using System.Drawing;
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using System.Reflection;
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using System.Runtime.ExceptionServices;
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using System.Text.RegularExpressions;
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using System.Windows.Forms;
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using OpenNest.CNC;
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using OpenNest.Controls;
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using OpenNest.Converters;
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using OpenNest.Geometry;
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namespace OpenNest.WinForms.Tests.Controls;
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public class ProgramEditorControlTests
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{
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private static readonly Color BaseColor = Color.FromArgb(180, 200, 180);
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[Fact]
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public void TimeoutDuringInitialLoadKeepsCompleteTextAndBaseColorWithoutAParentHandle() => RunSta(() =>
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{
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using var control = new TestEditor { TimeoutFromCall = 1 };
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var status = GetControl<Label>(control, "lblGcode");
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Assert.False(control.IsHandleCreated);
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Assert.False(status.IsHandleCreated);
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control.LoadEntities(CreateEntities());
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Assert.True(control.IsLoaded);
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Assert.False(control.IsDirty);
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Assert.NotNull(control.Program);
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Assert.True(control.SpansCollectedBeforeTimeout > 0);
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AssertCompleteText(control);
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AssertUniformBaseColor(GetControl<RichTextBox>(control, "gcodeEditor"));
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Assert.Equal("G-Code (highlighting timed out)", status.Text);
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Assert.Equal(3, GetControl<EntityView>(control, "preview").Entities.Count);
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});
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[Theory]
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[InlineData(false)]
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[InlineData(true)]
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public void ReverseAndReorderFinishModelPreviewAndEventsWithOrWithoutTimeout(bool timeout) => RunSta(() =>
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{
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using var control = new TestEditor { TimeoutFromCall = timeout ? 2 : int.MaxValue };
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using var form = new Form { Width = 900, Height = 600 };
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control.Dock = DockStyle.Fill;
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form.Controls.Add(control);
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form.Show();
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var changes = 0;
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control.ProgramChanged += (_, _) => changes++;
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control.LoadEntities(CreateEntities());
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Assert.Equal(0, changes); // Loading did not raise ProgramChanged before this repair either.
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Assert.False(control.IsDirty);
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AssertCompleteText(control);
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var list = GetControl<ListBox>(control, "contourList");
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list.SelectedIndex = 0;
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var firstContour = Assert.IsType<ContourInfo>(list.Items[0]);
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var oldDirection = firstContour.DirectionLabel;
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var oldProgram = control.Program;
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var preview = GetControl<EntityView>(control, "preview");
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var oldPreview = preview.Entities.ToArray();
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GetControl<Button>(control, "reverseButton").PerformClick();
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Assert.NotSame(oldProgram, control.Program);
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Assert.NotEqual(oldDirection, firstContour.DirectionLabel);
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Assert.True(control.IsDirty);
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Assert.Equal(1, changes);
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AssertPreviewRebuilt(preview, oldPreview);
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Assert.Equal(Assert.IsType<Circle>(firstContour.Shape.Entities[0]).Rotation,
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Assert.IsType<Circle>(preview.Entities[0]).Rotation);
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AssertCompleteText(control);
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AssertHighlightingOutcome(control, timeout);
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oldProgram = control.Program;
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oldPreview = preview.Entities.ToArray();
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GetField<ToolStripMenuItem>(control, "menuMoveDown").PerformClick();
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Assert.NotSame(oldProgram, control.Program);
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Assert.Same(firstContour, list.Items[1]);
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Assert.Equal(1, list.SelectedIndex);
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Assert.True(control.IsDirty);
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Assert.Equal(2, changes);
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AssertPreviewRebuilt(preview, oldPreview);
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AssertCompleteText(control);
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AssertHighlightingOutcome(control, timeout);
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Assert.Equal(3, control.MatchCalls);
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if (timeout)
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Assert.True(control.SpansCollectedBeforeTimeout > 0);
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});
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[Fact]
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public void SuccessfulRetryAndClearRemoveTheNonmodalTimeoutIndication() => RunSta(() =>
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{
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using var control = new TestEditor { TimeoutFromCall = 1 };
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control.LoadEntities(CreateEntities());
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var status = GetControl<Label>(control, "lblGcode");
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Assert.Contains("timed out", status.Text);
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control.TimeoutFromCall = int.MaxValue;
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control.LoadEntities(CreateEntities());
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Assert.Equal("G-Code", status.Text);
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AssertCompleteText(control);
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var editor = GetControl<RichTextBox>(control, "gcodeEditor");
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editor.Select(0, 3);
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Assert.Equal(Color.FromArgb(200, 140, 220), editor.SelectionColor);
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control.TimeoutFromCall = 1;
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control.LoadEntities(CreateEntities());
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Assert.Contains("timed out", status.Text);
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control.Clear();
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Assert.Equal("G-Code", status.Text);
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Assert.Empty(editor.Text);
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Assert.False(control.IsLoaded);
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Assert.False(control.IsDirty);
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Assert.Null(control.Program);
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});
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[Fact]
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public void OrdinaryHighlightingPreservesAllColorsAndUnmatchedCoordinateText() => RunSta(() =>
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{
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using var control = new TestEditor();
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var editor = GetControl<RichTextBox>(control, "gcodeEditor");
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editor.Text = ";)\nG91\nG00 X1\nG01 X2\nG02 X3\nG03 X4\nG000";
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var original = editor.Text;
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ApplyHighlighting(control);
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Assert.Equal(original, editor.Text);
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Assert.Equal(0, editor.SelectionStart);
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Assert.Equal(0, editor.SelectionLength);
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var colors = new[]
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{
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Color.FromArgb(120, 120, 140), Color.FromArgb(200, 140, 220),
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Color.FromArgb(230, 180, 80), Color.FromArgb(130, 200, 140),
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Color.FromArgb(120, 160, 255),
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};
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var spans = ProgramHighlighting.ComputeSpans(original);
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for (var index = 0; index < editor.TextLength; index++)
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{
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if (original[index] is '\r' or '\n')
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continue;
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var expected = BaseColor;
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foreach (var span in spans)
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if (index >= span.Index && index < span.Index + span.Length)
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expected = colors[span.RuleIndex];
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editor.Select(index, 1);
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Assert.Equal(expected, editor.SelectionColor);
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}
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});
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[Fact]
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public void UnexpectedApplicationFailureStillRestoresSelectionAndResumesLayout() => RunSta(() =>
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{
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using var control = new TestEditor { ReturnInvalidRule = true };
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var editor = GetControl<RichTextBox>(control, "gcodeEditor");
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Assert.Throws<IndexOutOfRangeException>(() => control.LoadEntities(CreateEntities()));
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Assert.Equal(0, editor.SelectionStart);
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Assert.Equal(0, editor.SelectionLength);
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var layouts = 0;
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editor.Layout += (_, _) => layouts++;
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editor.PerformLayout();
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Assert.True(layouts > 0); // PerformLayout would be deferred if SuspendLayout were unbalanced.
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});
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[Fact]
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public void UnexpectedMatchingFailureIsNotSwallowed() => RunSta(() =>
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{
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using var control = new TestEditor { FailMatching = true };
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var exception = Assert.Throws<InvalidOperationException>(() => control.LoadEntities(CreateEntities()));
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Assert.Equal("Unexpected matching failure", exception.Message);
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});
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private sealed class TestEditor : ProgramEditorControl
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{
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public int TimeoutFromCall { get; set; } = int.MaxValue;
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public int MatchCalls { get; private set; }
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public int SpansCollectedBeforeTimeout { get; private set; }
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public bool ReturnInvalidRule { get; set; }
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public bool FailMatching { get; set; }
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internal override IReadOnlyList<HighlightSpan> ComputeHighlightSpans(string text)
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{
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MatchCalls++;
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if (FailMatching)
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throw new InvalidOperationException("Unexpected matching failure");
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if (MatchCalls >= TimeoutFromCall)
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{
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// Simulate lazy enumeration succeeding for the comment rule, then timing out
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// in a later rule. The local prefix must never reach the color renderer.
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var partial = new List<HighlightSpan>();
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var comments = new Regex(@"^;.*$", RegexOptions.Multiline, TimeSpan.FromMilliseconds(100));
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foreach (Match match in comments.Matches(text))
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partial.Add(new HighlightSpan(match.Index, match.Length, 0));
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SpansCollectedBeforeTimeout = partial.Count;
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throw new RegexMatchTimeoutException();
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}
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if (ReturnInvalidRule)
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return new[] { new HighlightSpan(0, 3, 99) };
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return base.ComputeHighlightSpans(text);
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}
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}
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private static List<Entity> CreateEntities() => new()
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{
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new Circle(3, 3, 1), new Circle(7, 7, 1), new Circle(10, 10, 10),
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};
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private static void AssertCompleteText(ProgramEditorControl control)
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{
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var contours = GetField<List<ContourInfo>>(control, "contours");
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var raw = Assert.IsType<string>(typeof(ProgramEditorControl)
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.GetMethod("FormatProgram", BindingFlags.Static | BindingFlags.NonPublic)!
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.Invoke(null, new object[] { control.Program, contours }));
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// RichTextBox performs its existing newline normalization; compare with the same
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// generated text assigned to an unhighlighted editor, not with another highlight pass.
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using var unhighlighted = new RichTextBox { Text = raw };
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var editor = GetControl<RichTextBox>(control, "gcodeEditor");
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Assert.NotEmpty(raw);
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Assert.Equal(unhighlighted.Text, editor.Text);
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Assert.True(editor.ReadOnly);
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}
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private static void AssertHighlightingOutcome(ProgramEditorControl control, bool timeout)
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{
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var editor = GetControl<RichTextBox>(control, "gcodeEditor");
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Assert.Equal(0, editor.SelectionStart);
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Assert.Equal(0, editor.SelectionLength);
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Assert.Equal(timeout ? "G-Code (highlighting timed out)" : "G-Code",
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GetControl<Label>(control, "lblGcode").Text);
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if (timeout)
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AssertUniformBaseColor(editor);
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}
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private static void AssertUniformBaseColor(RichTextBox editor)
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{
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Assert.Equal(0, editor.SelectionStart);
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Assert.Equal(0, editor.SelectionLength);
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editor.SelectAll();
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Assert.Equal(BaseColor, editor.SelectionColor);
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for (var index = 0; index < editor.TextLength; index++)
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{
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if (editor.Text[index] is '\r' or '\n')
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continue;
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editor.Select(index, 1);
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Assert.Equal(BaseColor, editor.SelectionColor);
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}
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editor.Select(0, 0);
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}
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private static void AssertPreviewRebuilt(EntityView preview, Entity[] before)
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{
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Assert.Equal(before.Length, preview.Entities.Count);
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Assert.All(preview.Entities, entity => Assert.DoesNotContain(entity, before));
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}
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private static T GetControl<T>(Control control, string name) where T : Control =>
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Assert.IsType<T>(control.Controls.Find(name, true).Single());
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private static T GetField<T>(ProgramEditorControl control, string name) =>
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Assert.IsType<T>(typeof(ProgramEditorControl)
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.GetField(name, BindingFlags.Instance | BindingFlags.NonPublic)!.GetValue(control));
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private static void ApplyHighlighting(ProgramEditorControl control) => typeof(ProgramEditorControl)
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.GetMethod("ApplyHighlighting", BindingFlags.Instance | BindingFlags.NonPublic)!.Invoke(control, null);
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private static void RunSta(Action action)
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{
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Exception? error = null;
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var thread = new Thread(() =>
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{
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try { action(); }
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catch (Exception ex) { error = ex; }
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})
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{ IsBackground = true };
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thread.SetApartmentState(ApartmentState.STA);
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thread.Start();
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Assert.True(thread.Join(TimeSpan.FromSeconds(30)), "The STA test did not complete.");
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if (error != null)
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ExceptionDispatchInfo.Capture(error).Throw();
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}
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}
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