diff --git a/ast/src/constant.rs b/ast/src/constant.rs
index 55ee09a..6099272 100644
--- a/ast/src/constant.rs
+++ b/ast/src/constant.rs
@@ -133,12 +133,12 @@ impl<U> crate::fold::Fold<U> for ConstantOptimizer {
 
 #[cfg(test)]
 mod tests {
+    use super::*;
+
     #[cfg(feature = "constant-optimization")]
     #[test]
     fn test_constant_opt() {
-        use super::*;
-        use crate::fold::Fold;
-        use crate::*;
+        use crate::{fold::Fold, *};
 
         let start = Default::default();
         let end = None;
diff --git a/core/src/location.rs b/core/src/location.rs
index 9d32b54..d9cd59b 100644
--- a/core/src/location.rs
+++ b/core/src/location.rs
@@ -96,7 +96,7 @@ impl Location {
 
 #[cfg(test)]
 mod tests {
-    use crate::Location;
+    use super::*;
 
     #[test]
     fn test_gt() {
diff --git a/parser/src/function.rs b/parser/src/function.rs
index cfda1c5..0f580e7 100644
--- a/parser/src/function.rs
+++ b/parser/src/function.rs
@@ -151,7 +151,7 @@ fn is_starred(exp: &ast::Expr) -> bool {
 
 #[cfg(test)]
 mod tests {
-    use crate::lexer::LexicalErrorType;
+    use super::*;
     use crate::parser::{parse_program, ParseErrorType};
 
     macro_rules! function_and_lambda {