gffranco
21b485c91b
Strip "Phase N", "SPEC §X.Y", and "v1.x" planning labels from comments across the Rust crates and editor layers now that those tracking artifacts are gone. Comments only — no logic, strings, or test names touched. Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
112 lines
3.8 KiB
Rust
112 lines
3.8 KiB
Rust
//! LSP folding-range provider.
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//!
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//! Drives `folding::folding_ranges` directly. The handler wiring is
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//! shallow — it just calls into this function — so we verify the
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//! shapes here and trust the integration via the LSP test harness in
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//! `lsp_helpers.rs`.
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use nuwiki_core::syntax::vimwiki::VimwikiSyntax;
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use nuwiki_core::syntax::SyntaxPlugin;
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use nuwiki_lsp::folding;
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fn parse(src: &str) -> nuwiki_core::ast::DocumentNode {
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VimwikiSyntax::new().parse(src)
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}
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#[test]
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fn no_headings_no_lists_emits_no_folds() {
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let src = "just text\non two lines\n";
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let ast = parse(src);
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let folds = folding::folding_ranges(&ast, folding::line_count(src));
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assert!(folds.is_empty());
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}
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#[test]
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fn single_heading_folds_to_end_of_document() {
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let src = "= Title =\nbody line 1\nbody line 2\n";
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let ast = parse(src);
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let folds = folding::folding_ranges(&ast, folding::line_count(src));
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assert_eq!(folds.len(), 1);
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assert_eq!(folds[0].start_line, 0);
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// body line 2 is line 2; trailing newline pushes line_count to 4 so
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// last_line == 3 (the empty line after the final newline).
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assert!(folds[0].end_line >= 2);
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}
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#[test]
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fn sibling_headings_each_get_their_own_fold() {
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let src = "= One =\nbody\n= Two =\nbody2\n= Three =\n";
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let ast = parse(src);
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let folds = folding::folding_ranges(&ast, folding::line_count(src));
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let heading_folds: Vec<_> = folds
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.iter()
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.filter(|f| f.start_line == 0 || f.start_line == 2 || f.start_line == 4)
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.collect();
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assert_eq!(heading_folds.len(), 3, "got: {folds:?}");
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// One closes before Two
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assert_eq!(heading_folds[0].end_line, 1);
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// Two closes before Three
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assert_eq!(heading_folds[1].end_line, 3);
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}
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#[test]
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fn nested_heading_folds_inside_parent() {
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let src = "= Outer =\nintro\n== Inner ==\nbody\n= Other =\n";
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let ast = parse(src);
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let folds = folding::folding_ranges(&ast, folding::line_count(src));
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// Outer fold spans up to the line before `= Other =` (line 4).
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let outer = folds
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.iter()
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.find(|f| f.start_line == 0)
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.expect("outer fold");
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assert_eq!(outer.end_line, 3);
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// Inner fold is bounded by the next h1 too (since the only following
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// heading is h1, which has level <= 2).
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let inner = folds
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.iter()
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.find(|f| f.start_line == 2)
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.expect("inner fold");
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assert_eq!(inner.end_line, 3);
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}
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#[test]
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fn top_level_list_gets_its_own_fold() {
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let src = "before\n- item one\n- item two\n- item three\nafter\n";
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let ast = parse(src);
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let folds = folding::folding_ranges(&ast, folding::line_count(src));
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let list_fold = folds.iter().find(|f| f.start_line == 1);
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assert!(list_fold.is_some(), "expected a list fold: {folds:?}");
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}
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#[test]
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fn single_line_blocks_are_not_folded() {
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let src = "= Solo =\n";
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let ast = parse(src);
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let folds = folding::folding_ranges(&ast, folding::line_count(src));
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// A heading on the only line of the document covers nothing
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// foldable, so it's omitted.
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let none_for_solo = folds
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.iter()
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.all(|f| !(f.start_line == 0 && f.end_line == 0));
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assert!(none_for_solo, "got: {folds:?}");
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}
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#[test]
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fn fold_kind_is_region() {
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use tower_lsp::lsp_types::FoldingRangeKind;
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let src = "= H =\nbody\n";
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let ast = parse(src);
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let folds = folding::folding_ranges(&ast, folding::line_count(src));
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assert!(!folds.is_empty());
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assert_eq!(folds[0].kind, Some(FoldingRangeKind::Region));
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}
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#[test]
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fn line_count_matches_intuitive_definition() {
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assert_eq!(folding::line_count(""), 0);
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assert_eq!(folding::line_count("one"), 1);
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assert_eq!(folding::line_count("one\n"), 2); // trailing newline → virtual empty line
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assert_eq!(folding::line_count("one\ntwo"), 2);
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assert_eq!(folding::line_count("one\ntwo\n"), 3);
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}
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