[문자열 덧셈 계산기] 이나영 미션 제출합니다.

__tests__/ApplicationTest.js

@@ -55,4 +55,19 @@ describe("문자열 계산기", () => {
       expect(logSpy).toHaveBeenCalledWith(expect.stringContaining(output));
     });
   });
+
+  test("콜론 구분자 사용", async () => {
+    const inputs = ["3:5:::6"];
+    mockQuestions(inputs);
+
+    const logSpy = getLogSpy();
+    const outputs = ["결과 : 14"];
+
+    const app = new App();
+    await app.run();
+
+    outputs.forEach((output) => {
+      expect(logSpy).toHaveBeenCalledWith(expect.stringContaining(output));
+    });
+  });
 });