challenge(formatter): sloppy mode tests

crates/biome_js_formatter/tests/prettier_tests.rs

@@ -3,7 +3,7 @@ use std::{env, path::Path};
 use biome_formatter::IndentStyle;
 use biome_formatter_test::test_prettier_snapshot::{PrettierSnapshot, PrettierTestFile};
 use biome_js_formatter::context::JsFormatOptions;
-use biome_js_syntax::JsFileSource;
+use biome_js_syntax::{JsFileSource, ModuleKind};
 
 mod language;
 
@@ -18,7 +18,7 @@ fn test_snapshot(input: &'static str, _: &str, _: &str, _: &str) {
     ));
 
     let test_file = PrettierTestFile::new(input, root_path);
-    let source_type = {
+    let mut source_type = {
         // Prettier testing suite uses JSX tags inside JS files.
         // As there's no way to know in advance which files have JSX syntax, we
         // change the source type only here
@@ -31,12 +31,31 @@ fn test_snapshot(input: &'static str, _: &str, _: &str, _: &str) {
         }
     };
 
+    if is_non_strict_mode(root_path, test_file.input_file()) {
+        source_type = source_type.with_module_kind(ModuleKind::Script)
+    }
+
     let options = JsFormatOptions::new(source_type)
         .with_indent_style(IndentStyle::Space)
         .with_indent_width(2.into());
+
     let language = language::JsTestFormatLanguage::new(source_type);
 
     let snapshot = PrettierSnapshot::new(test_file, language, options);
 
     snapshot.test()
 }
+
+fn is_non_strict_mode(root_path: &Path, file_path: &Path) -> bool {
+    let test_cases_paths = [
+        "js/with",
+        "js/sloppy-mode",
+        "js/identifier/parentheses/const.js",
+    ];
+
+    test_cases_paths.iter().any(|path| {
+        file_path
+            .strip_prefix(root_path)
+            .is_ok_and(|file| file.starts_with(path))
+    })
+}

crates/biome_js_formatter/tests/specs/prettier/js/sloppy-mode/function-declaration-in-while.js.snap

@@ -31,7 +31,7 @@ while (false) function foo(){}
 ```
 function-declaration-in-while.js:1:15 parse ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
 
-  × In strict mode code, functions can only be declared at top level or inside a block
+  × In non-strict mode code, functions can only be declared at top level, inside a block, or as the body of an if or labelled statement
 
   > 1 │ while (false) function foo(){}
       │               ^^^^^^^^^^^^^^^^