diff --git a/src/code_info_builder/classlike_scanner.rs b/src/code_info_builder/classlike_scanner.rs
index 813ee95a..a993183a 100644
--- a/src/code_info_builder/classlike_scanner.rs
+++ b/src/code_info_builder/classlike_scanner.rs
@@ -578,6 +578,9 @@ pub(crate) fn scan(
             .get(&(user_attribute.name.0.start_offset() as u32))
             .unwrap();
 
+        signature_hash =
+            signature_hash.wrapping_add(xxhash_rust::xxh3::xxh3_64(&name.0.to_le_bytes()));
+
         if name == StrId::CODEGEN {
             storage.generated = true;
         }
@@ -657,6 +660,7 @@ pub(crate) fn scan(
             &m.name,
             &m.tparams,
             &m.params,
+            &functionlike_storage.attributes,
             &m.ret,
             all_uses
                 .symbol_member_uses
diff --git a/src/code_info_builder/functionlike_scanner.rs b/src/code_info_builder/functionlike_scanner.rs
index 578f22ec..ecdf43a5 100644
--- a/src/code_info_builder/functionlike_scanner.rs
+++ b/src/code_info_builder/functionlike_scanner.rs
@@ -331,13 +331,15 @@ pub(crate) fn get_functionlike(
     }
 
     for user_attribute in user_attributes {
-        let name = *resolved_names
+        let attribute_name = *resolved_names
             .get(&(user_attribute.name.0.start_offset() as u32))
             .unwrap();
 
-        functionlike_info.attributes.push(AttributeInfo { name });
+        functionlike_info.attributes.push(AttributeInfo {
+            name: attribute_name,
+        });
 
-        match name {
+        match attribute_name {
             StrId::HAKANA_SECURITY_ANALYSIS_SOURCE => {
                 let mut source_types = vec![];
 
@@ -558,37 +560,35 @@ pub(crate) fn adjust_location_from_comments(
     suppressed_issues: &mut Vec<(IssueKind, HPos)>,
     all_custom_issues: &FxHashSet<String>,
 ) {
-    if !comments.is_empty() {
-        for (comment_pos, comment) in comments.iter().rev() {
-            let (start, end) = comment_pos.to_start_and_end_lnum_bol_offset();
-            let (start_line, _, start_offset) = start;
-            let (end_line, _, _) = end;
-
-            if meta_start.start_line as usize == (end_line + 1)
-                || meta_start.start_line as usize == (end_line + 2)
-            {
-                match comment {
-                    Comment::CmtLine(_) => {
-                        meta_start.start_line = start_line as u32;
-                        meta_start.start_offset = start_offset as u32;
+    for (comment_pos, comment) in comments.iter().rev() {
+        let (start, end) = comment_pos.to_start_and_end_lnum_bol_offset();
+        let (start_line, _, start_offset) = start;
+        let (end_line, _, _) = end;
+
+        if meta_start.start_line as usize == (end_line + 1)
+            || meta_start.start_line as usize == (end_line + 2)
+        {
+            match comment {
+                Comment::CmtLine(_) => {
+                    meta_start.start_line = start_line as u32;
+                    meta_start.start_offset = start_offset as u32;
+                }
+                Comment::CmtBlock(text) => {
+                    let trimmed_text = if let Some(trimmed_text) = text.strip_prefix('*') {
+                        trimmed_text.trim()
+                    } else {
+                        text.trim()
+                    };
+
+                    if let Some(Ok(issue_kind)) =
+                        get_issue_from_comment(trimmed_text, all_custom_issues)
+                    {
+                        let comment_pos = HPos::new(comment_pos, file_source.file_path);
+                        suppressed_issues.push((issue_kind, comment_pos));
                     }
-                    Comment::CmtBlock(text) => {
-                        let trimmed_text = if let Some(trimmed_text) = text.strip_prefix('*') {
-                            trimmed_text.trim()
-                        } else {
-                            text.trim()
-                        };
-
-                        if let Some(Ok(issue_kind)) =
-                            get_issue_from_comment(trimmed_text, all_custom_issues)
-                        {
-                            let comment_pos = HPos::new(comment_pos, file_source.file_path);
-                            suppressed_issues.push((issue_kind, comment_pos));
-                        }
 
-                        meta_start.start_line = start_line as u32;
-                        meta_start.start_offset = start_offset as u32;
-                    }
+                    meta_start.start_line = start_line as u32;
+                    meta_start.start_offset = start_offset as u32;
                 }
             }
         }
diff --git a/src/code_info_builder/lib.rs b/src/code_info_builder/lib.rs
index cb0bb50e..a1556a14 100644
--- a/src/code_info_builder/lib.rs
+++ b/src/code_info_builder/lib.rs
@@ -16,8 +16,9 @@ use hakana_reflection_info::{
 use hakana_reflection_info::{FileSource, GenericParent};
 use hakana_str::{StrId, ThreadedInterner};
 use hakana_type::{get_bool, get_int, get_mixed_any, get_string};
+use naming_special_names_rust::user_attributes;
 use no_pos_hash::{position_insensitive_hash, Hasher};
-use oxidized::ast::{FunParam, Tparam, TypeHint};
+use oxidized::ast::{FunParam, Tparam, TypeHint, UserAttribute};
 use oxidized::ast_defs::Id;
 use oxidized::{
     aast,
@@ -507,6 +508,7 @@ impl<'ast> Visitor<'ast> for Scanner<'_> {
             &f.name,
             &f.tparams,
             &f.fun.params,
+            &functionlike_storage.attributes,
             &f.fun.ret,
             self.uses.symbol_uses.get(&name).unwrap_or(&vec![]),
         );
@@ -652,7 +654,7 @@ impl<'a> Scanner<'a> {
             self.user_defined,
         );
 
-        functionlike_storage.is_production_code = self.file_source.is_production_code;
+        functionlike_storage.is_production_code &= self.file_source.is_production_code;
 
         if matches!(
             name,
@@ -756,6 +758,7 @@ fn get_function_hashes(
     name: &Id,
     tparams: &[Tparam],
     params: &[FunParam],
+    user_attributes: &[AttributeInfo],
     ret: &TypeHint,
     uses: &Vec<(StrId, StrId)>,
 ) -> (u64, u64) {
@@ -783,10 +786,15 @@ fn get_function_hashes(
         signature_end = ret_hint.0.end_offset();
     }
 
-    let signature_hash = xxhash_rust::xxh3::xxh3_64(
+    let mut signature_hash = xxhash_rust::xxh3::xxh3_64(
         file_contents[def_location.start_offset as usize..signature_end].as_bytes(),
     );
 
+    for attribute in user_attributes {
+        signature_hash = signature_hash
+            .wrapping_add(xxhash_rust::xxh3::xxh3_64(&attribute.name.0.to_le_bytes()));
+    }
+
     (
         signature_hash,
         xxhash_rust::xxh3::xxh3_64(
diff --git a/src/file_scanner_analyzer/unused_symbols.rs b/src/file_scanner_analyzer/unused_symbols.rs
index 9ef2b316..0d93d862 100644
--- a/src/file_scanner_analyzer/unused_symbols.rs
+++ b/src/file_scanner_analyzer/unused_symbols.rs
@@ -231,6 +231,7 @@ pub(crate) fn find_unused_definitions(
                 let mut classlike_only_used_in_tests = false;
 
                 if classlike_info.is_production_code
+                    && classlike_name != &StrId::HAKANA_TEST_ONLY
                     && !referenced_symbols_and_members_in_production
                         .contains(&(*classlike_name, StrId::EMPTY))
                 {