diff --git a/__tests__/get-os.test.ts b/__tests__/get-os.test.ts
index b2e79bb..1614a1c 100644
--- a/__tests__/get-os.test.ts
+++ b/__tests__/get-os.test.ts
@@ -1,13 +1,13 @@
 import {getOS} from '../src/get-os';
 
-describe('getOS', () => {
-  test('test', () => {
+describe('getOS()', () => {
+  test('should return expected OS name', () => {
     expect(getOS('linux')).toBe('unknown-linux-gnu');
     expect(getOS('darwin')).toBe('apple-darwin');
     expect(getOS('win32')).toBe('pc-windows-msvc');
   });
 
-  test('test exception', () => {
+  test('should return exception', () => {
     expect(() => {
       getOS('centos');
     }).toThrowError('centos is not supported');
diff --git a/__tests__/get-url.test.ts b/__tests__/get-url.test.ts
index 82a6cbe..4e56a43 100644
--- a/__tests__/get-url.test.ts
+++ b/__tests__/get-url.test.ts
@@ -1,7 +1,7 @@
 import {getURL} from '../src/get-url';
 
 describe('getURL()', () => {
-  test('test', () => {
+  test('should return extected URL', () => {
     const testVersion: string = '0.3.5';
     const baseURL: string = `https://github.com/rust-lang/mdBook/releases/download/v${testVersion}/mdbook-v${testVersion}-x86_64`;
     const urlLinux: string = `${baseURL}-unknown-linux-gnu.tar.gz`;