| 1 | using CascadeIDE.Services; |
| 2 | using Microsoft.CodeAnalysis.Text; |
| 3 | using Xunit; |
| 4 | using TestContext = Xunit.TestContext; |
| 5 | |
| 6 | namespace CascadeIDE.Tests.MonacoForward; |
| 7 | |
| 8 | [Trait("Category", "MonacoForward")] |
| 9 | public sealed class CSharpLanguageServiceFormatReferencesTests |
| 10 | { |
| 11 | [Fact] |
| 12 | public void FormatDocument_normalizes_spacing() |
| 13 | { |
| 14 | const string path = @"D:\Fake\Fmt.cs"; |
| 15 | const string src = "class C{void M(){int x=1;}}"; |
| 16 | var svc = new CSharpLanguageService(); |
| 17 | var formatted = svc.FormatDocument(path, src, TestContext.Current.CancellationToken); |
| 18 | |
| 19 | Assert.Contains("class C", formatted); |
| 20 | Assert.Contains("void M", formatted); |
| 21 | Assert.NotEqual(src, formatted); |
| 22 | } |
| 23 | |
| 24 | [Fact] |
| 25 | public void OrganizeUsings_sorts_directives() |
| 26 | { |
| 27 | const string path = @"D:\Fake\Usings.cs"; |
| 28 | const string src = """ |
| 29 | using System.Text; |
| 30 | using System; |
| 31 | class C { } |
| 32 | """; |
| 33 | var svc = new CSharpLanguageService(); |
| 34 | var organized = svc.OrganizeUsings(path, src, TestContext.Current.CancellationToken); |
| 35 | |
| 36 | var systemIdx = organized.IndexOf("using System;", StringComparison.Ordinal); |
| 37 | var textIdx = organized.IndexOf("using System.Text;", StringComparison.Ordinal); |
| 38 | Assert.True(systemIdx >= 0); |
| 39 | Assert.True(textIdx > systemIdx); |
| 40 | } |
| 41 | |
| 42 | [Fact] |
| 43 | public void FindReferencesInFile_on_record_declaration_finds_type_usages() |
| 44 | { |
| 45 | const string path = @"D:\Fake\FieldStateLoader.cs"; |
| 46 | var src = """ |
| 47 | namespace Casa; |
| 48 | |
| 49 | public sealed record FieldGrid(int W, int H); |
| 50 | |
| 51 | public sealed record FieldStateSnapshot(FieldGrid? Grid, int Tick); |
| 52 | |
| 53 | public sealed record ClaimNavItem(string Id); |
| 54 | """; |
| 55 | var index = src.IndexOf("record FieldGrid", StringComparison.Ordinal); |
| 56 | var nameStart = index + "record ".Length; |
| 57 | var pos = SourceText.From(src).Lines.GetLinePosition(nameStart); |
| 58 | var svc = new CSharpLanguageService(); |
| 59 | var refs = svc.FindReferencesInFile(path, src, pos.Line + 1, pos.Character + 1, TestContext.Current.CancellationToken); |
| 60 | |
| 61 | Assert.True(refs.Count >= 2, $"Expected >=2 refs, got {refs.Count}"); |
| 62 | Assert.Contains(refs, r => r.Line > 0 && r.Column > 0); |
| 63 | } |
| 64 | |
| 65 | [Fact] |
| 66 | public void FindReferencesInFile_finds_local_usages() |
| 67 | { |
| 68 | const string path = @"D:\Fake\Refs.cs"; |
| 69 | var src = """ |
| 70 | class C |
| 71 | { |
| 72 | void M() |
| 73 | { |
| 74 | int count = 1; |
| 75 | count = count + 1; |
| 76 | } |
| 77 | } |
| 78 | """; |
| 79 | var (line, column) = AfterMarker(src, "count = count"); |
| 80 | var svc = new CSharpLanguageService(); |
| 81 | var refs = svc.FindReferencesInFile(path, src, line, column, TestContext.Current.CancellationToken); |
| 82 | |
| 83 | Assert.True(refs.Count >= 2); |
| 84 | Assert.Contains(refs, r => r.Line > 0 && r.Column > 0); |
| 85 | } |
| 86 | |
| 87 | private static (int Line, int Column) AfterMarker(string source, string marker) |
| 88 | { |
| 89 | var index = source.IndexOf(marker, StringComparison.Ordinal); |
| 90 | Assert.True(index >= 0, $"Marker '{marker}' not found."); |
| 91 | var tokenStart = index; |
| 92 | while (tokenStart > 0 && char.IsLetterOrDigit(source[tokenStart - 1])) |
| 93 | tokenStart--; |
| 94 | var location = SourceText.From(source).Lines.GetLinePosition(tokenStart); |
| 95 | return (location.Line + 1, location.Character + 1); |
| 96 | } |
| 97 | } |
| 98 | |