1 files changed, 57 insertions, 0 deletions
diff --git a/packages/iku/src/checker.test.ts b/packages/iku/src/checker.test.ts
index 58a861c..457d956 100644
--- a/packages/iku/src/checker.test.ts
+++ b/packages/iku/src/checker.test.ts
@@ -280,4 +280,61 @@ console.log(a);
 			expect(errors).toHaveLength(3);
 		});
 	});
+	describe("comments", () => {
+		it("detects single-line comments by default", () => {
+			const content = `const a = 1;
+// this is a comment
+const b = 2;
+`;
+			const filePath = createTempFile(content);
+			const errors = checkFile(filePath);
+
+			cleanupTempFile(filePath);
+			expect(errors.some((error) => error.includes("Comment detected"))).toBe(true);
+		});
+		it("detects multi-line comments by default", () => {
+			const content = `const a = 1;
+/* this is a
+   multi-line comment */
+const b = 2;
+`;
+			const filePath = createTempFile(content);
+			const errors = checkFile(filePath);
+
+			cleanupTempFile(filePath);
+			expect(errors.some((error) => error.includes("Comment detected"))).toBe(true);
+		});
+		it("detects trailing comments by default", () => {
+			const content = `const a = 1; // trailing comment
+`;
+			const filePath = createTempFile(content);
+			const errors = checkFile(filePath);
+
+			cleanupTempFile(filePath);
+			expect(errors.some((error) => error.includes("Comment detected"))).toBe(true);
+		});
+		it("allows comments when noComments is false", () => {
+			const content = `const a = 1;
+// this is a comment
+const b = 2;
+`;
+			const filePath = createTempFile(content);
+			const errors = checkFile(filePath, { noComments: false });
+
+			cleanupTempFile(filePath);
+			expect(errors.some((error) => error.includes("Comment detected"))).toBe(false);
+		});
+		it("detects JSDoc comments by default", () => {
+			const content = `/**
+ * This is a JSDoc comment
+ */
+function test() {}
+`;
+			const filePath = createTempFile(content);
+			const errors = checkFile(filePath);
+
+			cleanupTempFile(filePath);
+			expect(errors.some((error) => error.includes("Comment detected"))).toBe(true);
+		});
+	});
 });