wip: add test

lumirlumir · lumirlumir · commit bc245ec5be9c · 2025-06-17T18:20:29.000+09:00
diff --git a/tests/lib/languages/js/source-code/source-code.js b/tests/lib/languages/js/source-code/source-code.js
@@ -2311,6 +2311,11 @@ describe("SourceCode", () => {
 				/Expected `loc` to be an object with numeric `line` and `column` properties\./u,
 			);
 
+			assert.throws(
+				() => sourceCode.getIndexFromLoc(null),
+				/Expected `loc` to be an object with numeric `line` and `column` properties\./u,
+			);
+
 			assert.throws(
 				() =>
 					sourceCode.getIndexFromLoc({
