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Simplify HTML highlighter and add test case for highlight_injection logic

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This commit is contained in:
Leander Tentrup 2020-04-06 23:00:09 +02:00
parent bb45aca909
commit bf96d46fee
5 changed files with 95 additions and 57 deletions
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29
crates/ra_ide/src/syntax_highlighting/tests.rs
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@ -134,16 +134,25 @@ fn test_ranges() {
#[test]
fn test_flattening() {
let (analysis, file_id) = single_file(r#"#[cfg(feature = "foo")]"#);
let (analysis, file_id) = single_file(
r##"
fn fixture(ra_fixture: &str) {}
let highlights = analysis.highlight(file_id).unwrap();
fn main() {
fixture(r#"
trait Foo {
fn foo() {
println!("2 + 2 = {}", 4);
}
}"#
);
}"##
.trim(),
);
// The source code snippet contains 2 nested highlights:
// 1) Attribute spanning the whole string
// 2) The string "foo"
// The resulting flattening splits the attribute range:
assert_eq!(highlights.len(), 3);
assert_eq!(&highlights[0].highlight.to_string(), "attribute");
assert_eq!(&highlights[1].highlight.to_string(), "string_literal");
assert_eq!(&highlights[2].highlight.to_string(), "attribute");
let dst_file = project_dir().join("crates/ra_ide/src/snapshots/highlight_injection.html");
let actual_html = &analysis.highlight_as_html(file_id, false).unwrap();
let expected_html = &read_text(&dst_file);
fs::write(dst_file, &actual_html).unwrap();
assert_eq_text!(expected_html, actual_html);
}