diff --git a/src/formatters/biome.rs b/src/formatters/biome.rs
index a8d4a12..47c65d8 100644
--- a/src/formatters/biome.rs
+++ b/src/formatters/biome.rs
@@ -58,14 +58,14 @@ mod test_biome {
 
     #[test]
     fn it_should_format_javascript() {
-        let input = r#"          
+        let input = "          
     async function asyncAddition(
             a,b
         ) {
         return a+b 
     }
 
-            "#;
+            ";
 
         let expected_output = "async function asyncAddition(a, b) {
 \treturn a + b;
@@ -81,4 +81,33 @@ mod test_biome {
 
         assert_eq!(expected_output, output);
     }
+
+    #[test]
+    fn it_should_format_typescript() {
+        let input = "          
+    async function asyncAddition(
+            a:number,b:number
+        ) :Promise<
+number> 
+    {
+        return a+b 
+    }
+
+            ";
+
+        let expected_output =
+            "async function asyncAddition(a: number, b: number): Promise<number> {
+\treturn a + b;
+}
+";
+
+        let snippet = setup_snippet(input, Language::TypeScript.to_file_ext())
+            .expect("it to create a snippet file");
+
+        let output = format_using_biome(snippet.path())
+            .expect("it to be succesful")
+            .expect("it to be some");
+
+        assert_eq!(expected_output, output);
+    }
 }