test(language_server): add linebreaks for formatter snapshot (#14173)

Author: Sysix

crates/oxc_language_server/src/formatter/tester.rs

@@ -19,11 +19,27 @@ pub fn get_file_uri(relative_file_path: &str) -> Uri {
 }
 
 fn get_snapshot_from_text_edits(edits: &[TextEdit]) -> String {
-    edits
-        .iter()
-        .map(|edit| format!("{:#?},\n\n{:?}", edit.range, edit.new_text))
-        .collect::<Vec<_>>()
-        .join("\n")
+    if edits.len() == 1 {
+        // Single edit - show range and the actual formatted content with proper indentation
+        let edit = &edits[0];
+        let indent = " ".repeat(edit.range.start.character as usize);
+        let indented_content = format!("{}{}", indent, edit.new_text);
+
+        format!("Range: {:#?}\n\n{}", edit.range, indented_content)
+    } else {
+        // Multiple edits - show each edit separately
+        edits
+            .iter()
+            .enumerate()
+            .map(|(i, edit)| {
+                let indent = " ".repeat(edit.range.start.character as usize);
+                let indented_content = format!("{}{}", indent, edit.new_text);
+
+                format!("Edit {}: Range: {:#?}\n{}", i + 1, edit.range, indented_content)
+            })
+            .collect::<Vec<_>>()
+            .join("\n----------\n")
+    }
 }
 
 /// Testing struct for the [formatter server][crate::formatter::server_formatter::ServerFormatter].
@@ -71,8 +87,8 @@ impl Tester<'_> {
 
             let _ = write!(
                 snapshot_result,
-                "########## \nfile: {}/{relative_file_path}\n----------\n{snapshot}\n",
-                self.relative_root_dir
+                "========================================\nFile: {}/{}\n========================================\n{}\n",
+                self.relative_root_dir, relative_file_path, snapshot
             );
         }
 

crates/oxc_language_server/src/snapshots/fixtures_formatter_basic@basic.ts.snap

@@ -1,10 +1,10 @@
 ---
 source: crates/oxc_language_server/src/formatter/tester.rs
 ---
-########## 
-file: fixtures/formatter/basic/basic.ts
-----------
-Range {
+========================================
+File: fixtures/formatter/basic/basic.ts
+========================================
+Range: Range {
     start: Position {
         line: 1,
         character: 2,
@@ -13,6 +13,30 @@ Range {
         line: 26,
         character: 0,
     },
-},
+}
 
-"#name: string;\n\n  public get name() {\n    return this.#name;\n  }\n\n  private set name(name: string) {\n    this.#name = name;\n  }\n}\n\nclass C2 {\n  #name: string;\n\n  private set name(name: string) {\n    this.#name = name;\n  }\n\n  public get name() {\n    return this.#name;\n  }\n}\n\nconst c1 = new C1();\nconst c2 = new C2();"
+  #name: string;
+
+  public get name() {
+    return this.#name;
+  }
+
+  private set name(name: string) {
+    this.#name = name;
+  }
+}
+
+class C2 {
+  #name: string;
+
+  private set name(name: string) {
+    this.#name = name;
+  }
+
+  public get name() {
+    return this.#name;
+  }
+}
+
+const c1 = new C1();
+const c2 = new C2();