crates/biome_css_parser/src/lib.rs (1)

338-341: Consider adding one mixed declaration + nested selector case.

A case like color: red; followed by a nested selector in the same snippet would harden ambiguity coverage with minimal extra cost.

Suggested test-case extension

     for css in [
         "svg:first-of-type {\n  margin-left: 0;\n}\n",
         "div:not(:last-child) {\n  border-bottom: 1px solid black;\n}\n",
+        "color: red;\nsvg:first-of-type {\n  margin-left: 0;\n}\n",
     ] {

🤖 Prompt for AI Agents

Verify each finding against the current code and only fix it if needed.

In `@crates/biome_css_parser/src/lib.rs` around lines 338 - 341, The test array of
CSS snippets iterated by the for loop (the "for css in [...]" array) lacks a
mixed declaration-plus-nested-selector case; add an extra string entry that
contains a simple property followed by a nested selector (e.g., "color:
red;\nsvg { fill: blue; }\n" or "color: red;\n  > span { color: blue; }\n") so
the parser is exercised on a declaration immediately followed by a nested rule;
update the array inside the for loop in lib.rs to include this new snippet.

crates/biome_service/src/workspace/server.tests.rs (1)

754-755: Use error-level diagnostics here to reduce future flake.

On Line 754, Severity::Hint can surface unrelated hint diagnostics later. This test is parser-focused, so Severity::Error keeps it tighter.

Small stability tweak

-            diagnostic_level: Severity::Hint,
+            diagnostic_level: Severity::Error,

🤖 Prompt for AI Agents

Verify each finding against the current code and only fix it if needed.

In `@crates/biome_service/src/workspace/server.tests.rs` around lines 754 - 755,
The test sets diagnostic_level to Severity::Hint which can surface unrelated
hints and cause flakes; update the test to use Severity::Error instead by
replacing the diagnostic_level value (change Severity::Hint to Severity::Error)
in the test setup (the struct/variable where diagnostic_level and enforce_assist
are defined) so the parser-focused test only considers error-level diagnostics.