chore: clean test-only warnings

Author: wudi

crates/php-parser/tests/strict_types_position.rs

@@ -1,4 +1,3 @@
-use php_parser::ast::ParseError;
 use php_parser::lexer::Lexer;
 use php_parser::parser::Parser;
 

crates/php-vm/src/vm/engine.rs

@@ -12212,11 +12212,8 @@ impl VM {
 
 mod tests {
     use super::*;
-    use crate::builtins::string::php_strlen;
     use crate::compiler::chunk::{FuncParam, UserFunc};
     use crate::core::value::Symbol;
-    use crate::runtime::context::EngineContext;
-    use std::sync::Arc;
 
     fn create_vm() -> VM {
         // Use EngineBuilder to properly register core extensions

crates/php-vm/src/vm/visibility.rs

@@ -165,7 +165,7 @@ impl VM {
 #[cfg(test)]
 mod tests {
     use super::*;
-    use crate::runtime::context::{ClassDef, EngineContext};
+    use crate::runtime::context::EngineContext;
     use std::sync::Arc;
 
     #[test]

crates/php-vm/tests/array_offset_access.rs

@@ -2,7 +2,6 @@ mod common;
 
 use common::run_code_vm_only;
 use php_vm::core::value::Val;
-use php_vm::vm::engine::VM;
 
 #[test]
 fn test_array_offset_integer_key() {

crates/php-vm/tests/bcmath.rs

@@ -1,6 +1,5 @@
 use php_vm::core::value::Val;
 use php_vm::runtime::context::EngineBuilder;
-use php_vm::runtime::context::EngineContext;
 use php_vm::vm::engine::VM;
 
 fn create_test_vm() -> VM {

crates/php-vm/tests/class_constants.rs

@@ -2,7 +2,6 @@ mod common;
 
 use common::run_code_with_vm;
 use php_vm::core::value::Val;
-use php_vm::vm::engine::VmError;
 
 #[test]
 fn test_class_constants_basic() {

crates/php-vm/tests/common/mod.rs

@@ -5,7 +5,7 @@
 
 use php_vm::core::value::Val;
 use php_vm::vm::engine::{VmError, VM};
-use php_vm::vm::executor::{execute_code, execute_code_with_config, ExecutionConfig};
+use php_vm::vm::executor::{execute_code, ExecutionConfig};
 
 /// Legacy helper: Execute PHP code and return the result value
 ///
@@ -76,10 +76,12 @@ pub fn run_code_with_vm(code: &str) -> Result<(Val, VM), VmError> {
 }
 
 /// Execute code and return just the VM (for inspecting internal state)
+#[allow(dead_code)]
 pub fn run_code_vm_only(code: &str) -> VM {
     run_code_with_vm(code).expect("code execution failed").1
 }
 // Result<Val, VmError>, String
+#[allow(dead_code)]
 pub fn run_code_capture_output(code: &str) -> Result<(Val, String), VmError> {
     use php_vm::compiler::emitter::Emitter;
     use php_vm::runtime::context::{EngineBuilder, RequestContext};

crates/php-vm/tests/constant_errors.rs

@@ -1,8 +1,6 @@
-use php_vm::runtime::context::EngineContext;
 use php_vm::runtime::context::EngineBuilder;
 use php_vm::vm::engine::{VmError, VM};
 use std::rc::Rc;
-use std::sync::Arc;
 
 #[test]
 fn test_undefined_constant_error_message_format() {

crates/php-vm/tests/constants.rs

@@ -5,7 +5,6 @@ fn run_code_expect_error(src: &str, expected_error: &str) {
     use php_vm::runtime::context::{EngineBuilder, RequestContext};
     use php_vm::vm::engine::VM;
     use std::rc::Rc;
-    use std::sync::Arc;
 
     let engine_context = EngineBuilder::new().with_core_extensions().build().expect("Failed to build engine");
     let mut request_context = RequestContext::new(engine_context);

crates/php-vm/tests/datetime_test.rs

@@ -1,6 +1,5 @@
 use php_vm::core::value::Val;
 use php_vm::runtime::context::EngineBuilder;
-use php_vm::runtime::context::EngineContext;
 use php_vm::vm::engine::VM;
 
 fn setup_vm() -> VM {