inspect single value lists

src/value/mod.rs

@@ -263,6 +263,16 @@ impl Value {
                 Brackets::None => "()".to_string(),
                 Brackets::Bracketed => "[]".to_string(),
             },
+            Value::List(v, sep, brackets) if v.len() == 1 => match brackets {
+                Brackets::None => match sep {
+                    ListSeparator::Space => format!("{}", v[0].inspect(span)?),
+                    ListSeparator::Comma => format!("({},)", v[0].inspect(span)?),
+                },
+                Brackets::Bracketed => match sep {
+                    ListSeparator::Space => format!("[{}]", v[0].inspect(span)?),
+                    ListSeparator::Comma => format!("[{},]", v[0].inspect(span)?),
+                },
+            },
             Value::Function(f) => format!("get-function(\"{}\")", f.name()),
             Value::Null => "null".to_string(),
             Value::Map(map) => format!(

tests/meta.rs

@@ -244,6 +244,21 @@ test!(
     "a {\n  color: inspect([]);\n}\n",
     "a {\n  color: [];\n}\n"
 );
+test!(
+    inspect_comma_separated_one_val,
+    "a {\n  color: inspect((1, ));\n}\n",
+    "a {\n  color: (1,);\n}\n"
+);
+test!(
+    inspect_comma_separated_one_val_bracketed,
+    "a {\n  color: inspect([1, ]);\n}\n",
+    "a {\n  color: [1,];\n}\n"
+);
+test!(
+    inspect_space_separated_one_val_bracketed,
+    "a {\n  color: inspect(append((), 1, space));\n}\n",
+    "a {\n  color: 1;\n}\n"
+);
 test!(
     variable_does_exist,
     "$a: red; a {\n  color: variable-exists(a)\n}\n",