Use feature instead of test cfg

crates/ruff/Cargo.toml

@@ -89,3 +89,5 @@ default = []
 schemars = ["dep:schemars"]
 # Enables the UnreachableCode rule
 unreachable-code = []
+# Enables rules for internal integration tests
+test-rules = []

crates/ruff/src/codes.rs

@@ -865,11 +865,11 @@ pub fn code_to_rule(linter: Linter, code: &str) -> Option<(RuleGroup, Rule)> {
         (Ruff, "017") => (RuleGroup::Nursery, rules::ruff::rules::QuadraticListSummation),
         (Ruff, "100") => (RuleGroup::Unspecified, rules::ruff::rules::UnusedNOQA),
         (Ruff, "200") => (RuleGroup::Unspecified, rules::ruff::rules::InvalidPyprojectToml),
-        #[cfg(test)]
+        #[cfg(feature = "test-rules")]
         (Ruff, "900") => (RuleGroup::Unspecified, rules::ruff::rules::StableTestRule),
-        #[cfg(test)]
+        #[cfg(feature = "test-rules")]
         (Ruff, "901") => (RuleGroup::Nursery, rules::ruff::rules::NurseryTestRule),
-        #[cfg(test)]
+        #[cfg(feature = "test-rules")]
         (Ruff, "902") => (RuleGroup::Preview, rules::ruff::rules::PreviewTestRule),
 
         // flake8-django

crates/ruff/src/linter.rs

@@ -214,7 +214,7 @@ pub fn check_path(
     }
 
     // Raise violations for internal test rules
-    #[cfg(test)]
+    #[cfg(feature = "test-rules")]
     {
         if settings.rules.enabled(Rule::StableTestRule) {
             diagnostics.push(Diagnostic::new(

crates/ruff/src/rules/ruff/rules/mod.rs

@@ -10,7 +10,7 @@ pub(crate) use mutable_class_default::*;
 pub(crate) use mutable_dataclass_default::*;
 pub(crate) use pairwise_over_zipped::*;
 pub(crate) use static_key_dict_comprehension::*;
-#[cfg(test)]
+#[cfg(feature = "test-rules")]
 pub(crate) use test_rules::*;
 pub(crate) use unnecessary_iterable_allocation_for_first_element::*;
 #[cfg(feature = "unreachable-code")]
@@ -31,7 +31,7 @@ mod mutable_class_default;
 mod mutable_dataclass_default;
 mod pairwise_over_zipped;
 mod static_key_dict_comprehension;
-#[cfg(test)]
+#[cfg(feature = "test-rules")]
 mod test_rules;
 mod unnecessary_iterable_allocation_for_first_element;
 #[cfg(feature = "unreachable-code")]

crates/ruff_cli/Cargo.toml

@@ -69,6 +69,7 @@ walkdir = { version = "2.3.2" }
 wild = { version = "2" }
 
 [dev-dependencies]
+ruff = { path = "../ruff", features = ["clap", "test-rules"] }
 assert_cmd = { version = "2.0.8" }
 # Avoid writing colored snapshots when running tests from the terminal
 colored = { workspace = true, features = ["no-color"]}