fix: redundant_test_prefix dogfooding

Author: farazdagi

clippy_config/src/conf.rs

@@ -772,6 +772,20 @@ define_Conf! {
     /// exported visibility, or whether they are marked as "pub".
     #[lints(pub_underscore_fields)]
     pub_underscore_fields_behavior: PubUnderscoreFieldsBehaviour = PubUnderscoreFieldsBehaviour::PubliclyExported,
+    /// Whether to include functions outside of `#[cfg(test)]` in the linting process or not.
+    ///
+    /// This option allows running the lint against the integration tests: test functions located
+    /// there are not inside a node marked with `#[cfg(test)]` annotation (although they are
+    /// still marked using `#[test]` annotation and thus can have redundant "test_" prefix).
+    #[lints(redundant_test_prefix)]
+    redundant_test_prefix_check_outside_cfg_test: bool = false,
+    /// What suffix to use to avoid function name collisions when `test_` prefix is removed.
+    ///
+    /// If set to `"_works"`, the lint will suggest renaming `test_foo` to `foo_works`.
+    /// Suffix is added only when there is a collision with an existing function name,
+    /// otherwise just `test_` prefix is removed (and no suffix added).
+    #[lints(redundant_test_prefix)]
+    redundant_test_prefix_custom_suffix: String = String::from("_works"),
     /// Whether to lint only if it's multiline.
     #[lints(semicolon_inside_block)]
     semicolon_inside_block_ignore_singleline: bool = false,
@@ -846,16 +860,6 @@ define_Conf! {
     /// Whether to also emit warnings for unsafe blocks with metavariable expansions in **private** macros.
     #[lints(macro_metavars_in_unsafe)]
     warn_unsafe_macro_metavars_in_private_macros: bool = false,
-    /// Whether to include integration tests in the linting process or not.
-    #[lints(redundant_test_prefix)]
-    redundant_test_prefix_in_integration_tests: bool = false,
-    /// What suffix to use to avoid function name collisions when `test_` prefix is removed.
-    ///
-    /// If set to `"_works"`, the lint will suggest renaming `test_foo` to `foo_works`.
-    /// Suffix is added only when there is a collision with an existing function name,
-    /// otherwise just `test_` prefix is removed (and no suffix added).
-    #[lints(redundant_test_prefix)]
-    redundant_test_prefix_custom_suffix: String = String::from("_works"),
 }
 
 /// Search for the configuration file.

clippy_dev/src/update_lints.rs

@@ -894,7 +894,7 @@ mod tests {
     use super::*;
 
     #[test]
-    fn test_parse_contents() {
+    fn parse_contents_works() {
         static CONTENTS: &str = r#"
             declare_clippy_lint! {
                 #[clippy::version = "Hello Clippy!"]
@@ -937,7 +937,7 @@ mod tests {
     }
 
     #[test]
-    fn test_usable_lints() {
+    fn usable_lints_works() {
         let lints = vec![
             Lint::new(
                 "should_assert_eq2",
@@ -972,7 +972,7 @@ mod tests {
     }
 
     #[test]
-    fn test_by_lint_group() {
+    fn by_lint_group_works() {
         let lints = vec![
             Lint::new("should_assert_eq", "group1", "\"abc\"", "module_name", Range::default()),
             Lint::new(

clippy_lints/src/empty_with_brackets.rs

@@ -146,7 +146,7 @@ mod unit_test {
     use super::*;
 
     #[test]
-    fn test_has_no_ident_token() {
+    fn has_no_ident_token_works() {
         let input = "{ field: u8 }";
         assert!(!has_no_ident_token(input));
 

clippy_lints/src/needless_continue.rs

@@ -501,7 +501,7 @@ mod test {
 
     #[test]
     #[rustfmt::skip]
-    fn test_erode_from_back() {
+    fn erode_from_back_works() {
         let input = "\
 {
     let x = 5;
@@ -519,7 +519,7 @@ mod test {
 
     #[test]
     #[rustfmt::skip]
-    fn test_erode_from_back_no_brace() {
+    fn erode_from_back_no_brace() {
         let input = "\
 let x = 5;
 let y = something();

clippy_lints/src/tabs_in_doc_comments.rs

@@ -152,77 +152,77 @@ mod tests_for_get_chunks_of_tabs {
     use super::get_chunks_of_tabs;
 
     #[test]
-    fn test_unicode_han_string() {
+    fn unicode_han_string() {
         let res = get_chunks_of_tabs(" \u{4f4d}\t");
 
         assert_eq!(res, vec![(4, 5)]);
     }
 
     #[test]
-    fn test_empty_string() {
+    fn empty_string() {
         let res = get_chunks_of_tabs("");
 
         assert_eq!(res, vec![]);
     }
 
     #[test]
-    fn test_simple() {
+    fn simple() {
         let res = get_chunks_of_tabs("sd\t\t\taa");
 
         assert_eq!(res, vec![(2, 5)]);
     }
 
     #[test]
-    fn test_only_t() {
+    fn only_t() {
         let res = get_chunks_of_tabs("\t\t");
 
         assert_eq!(res, vec![(0, 2)]);
     }
 
     #[test]
-    fn test_only_one_t() {
+    fn only_one_t() {
         let res = get_chunks_of_tabs("\t");
 
         assert_eq!(res, vec![(0, 1)]);
     }
 
     #[test]
-    fn test_double() {
+    fn double() {
         let res = get_chunks_of_tabs("sd\tasd\t\taa");
 
         assert_eq!(res, vec![(2, 3), (6, 8)]);
     }
 
     #[test]
-    fn test_start() {
+    fn start() {
         let res = get_chunks_of_tabs("\t\taa");
 
         assert_eq!(res, vec![(0, 2)]);
     }
 
     #[test]
-    fn test_end() {
+    fn end() {
         let res = get_chunks_of_tabs("aa\t\t");
 
         assert_eq!(res, vec![(2, 4)]);
     }
 
     #[test]
-    fn test_start_single() {
+    fn start_single() {
         let res = get_chunks_of_tabs("\taa");
 
         assert_eq!(res, vec![(0, 1)]);
     }
 
     #[test]
-    fn test_end_single() {
+    fn end_single() {
         let res = get_chunks_of_tabs("aa\t");
 
         assert_eq!(res, vec![(2, 3)]);
     }
 
     #[test]
-    fn test_no_tabs() {
+    fn no_tabs() {
         let res = get_chunks_of_tabs("dsfs");
 
         assert_eq!(res, vec![]);

clippy_utils/src/source.rs

@@ -759,7 +759,7 @@ mod test {
     use super::reindent_multiline;
 
     #[test]
-    fn test_reindent_multiline_single_line() {
+    fn reindent_multiline_single_line() {
         assert_eq!("", reindent_multiline("", false, None));
         assert_eq!("...", reindent_multiline("...", false, None));
         assert_eq!("...", reindent_multiline("    ...", false, None));
@@ -769,7 +769,7 @@ mod test {
 
     #[test]
     #[rustfmt::skip]
-    fn test_reindent_multiline_block() {
+    fn reindent_multiline_block() {
         assert_eq!("\
     if x {
         y
@@ -794,7 +794,7 @@ mod test {
 
     #[test]
     #[rustfmt::skip]
-    fn test_reindent_multiline_empty_line() {
+    fn reindent_multiline_empty_line() {
         assert_eq!("\
     if x {
         y
@@ -811,7 +811,7 @@ mod test {
 
     #[test]
     #[rustfmt::skip]
-    fn test_reindent_multiline_lines_deeper() {
+    fn reindent_multiline_lines_deeper() {
         assert_eq!("\
         if x {
             y

rustc_tools_util/src/lib.rs

@@ -184,7 +184,7 @@ mod test {
     use super::*;
 
     #[test]
-    fn test_struct_local() {
+    fn struct_local() {
         let vi = get_version_info!();
         assert_eq!(vi.major, 0);
         assert_eq!(vi.minor, 4);
@@ -198,13 +198,13 @@ mod test {
     }
 
     #[test]
-    fn test_display_local() {
+    fn display_local() {
         let vi = get_version_info!();
         assert_eq!(vi.to_string(), "rustc_tools_util 0.4.2");
     }
 
     #[test]
-    fn test_debug_local() {
+    fn debug_local() {
         let vi = get_version_info!();
         let s = format!("{vi:?}");
         assert_eq!(

tests/ui-toml/toml_unknown_key/conf_unknown_key.stderr

@@ -63,6 +63,8 @@ error: error reading Clippy's configuration file: unknown field `foobar`, expect
            msrv
            pass-by-value-size-limit
            pub-underscore-fields-behavior
+           redundant-test-prefix-check-outside-cfg-test
+           redundant-test-prefix-custom-suffix
            semicolon-inside-block-ignore-singleline
            semicolon-outside-block-ignore-multiline
            single-char-binding-names-threshold
@@ -155,6 +157,8 @@ error: error reading Clippy's configuration file: unknown field `barfoo`, expect
            msrv
            pass-by-value-size-limit
            pub-underscore-fields-behavior
+           redundant-test-prefix-check-outside-cfg-test
+           redundant-test-prefix-custom-suffix
            semicolon-inside-block-ignore-singleline
            semicolon-outside-block-ignore-multiline
            single-char-binding-names-threshold
@@ -247,6 +251,8 @@ error: error reading Clippy's configuration file: unknown field `allow_mixed_uni
            msrv
            pass-by-value-size-limit
            pub-underscore-fields-behavior
+           redundant-test-prefix-check-outside-cfg-test
+           redundant-test-prefix-custom-suffix
            semicolon-inside-block-ignore-singleline
            semicolon-outside-block-ignore-multiline
            single-char-binding-names-threshold