diff --git a/__tests__/get-os.test.ts b/__tests__/get-os.test.ts
index d30e939..da4dad9 100644
--- a/__tests__/get-os.test.ts
+++ b/__tests__/get-os.test.ts
@@ -8,9 +8,6 @@ describe('getOS', () => {
   });
 
   test('test exception', () => {
-    // expect(() => {
-    //   getOS("win32");
-    // }).toThrowError("Windows is not supported");
     expect(() => {
       getOS('centos');
     }).toThrowError('centos is not supported');
diff --git a/__tests__/get-url.test.ts b/__tests__/get-url.test.ts
index 118a8f2..09bffe0 100644
--- a/__tests__/get-url.test.ts
+++ b/__tests__/get-url.test.ts
@@ -9,14 +9,11 @@ describe('getURL()', () => {
     const urlMacOS = `${baseURL}/hugo_0.58.2_macOS-64bit.tar.gz`;
     const urlWindows = `${baseURL}/hugo_0.58.2_Windows-64bit.zip`;
     expect(getURL('Linux', 'false', '0.58.2')).toBe(urlLinux);
+    expect(getURL('Linux', 'true', '0.58.2')).not.toBe(urlLinux);
+    expect(getURL('MyOS', 'false', '0.58.2')).not.toBe(urlLinux);
+    expect(getURL('Linux', 'false', '0.58.1')).not.toBe(urlLinux);
     expect(getURL('Linux', 'true', '0.58.2')).toBe(urlLinuxExtended);
     expect(getURL('macOS', 'false', '0.58.2')).toBe(urlMacOS);
     expect(getURL('Windows', 'false', '0.58.2')).toBe(urlWindows);
   });
-
-  // test("test exception", () => {
-  //   expect(() => {
-  //     getURL("Linux", "hoge", "0.58.2");
-  //   }).toThrowError("Invalid input (extended): hoge");
-  // });
 });