feat: Add getOS()

__tests__/get-os.test.js

@@ -0,0 +1,17 @@
+const getOS = require("../lib/get-os");
+
+describe("getOS", () => {
+  test("test", () => {
+    expect(getOS("linux")).toBe("Linux");
+    expect(getOS("darwin")).toBe("macOS");
+  });
+
+  test("test exception", () => {
+    expect(() => {
+      getOS("win32");
+    }).toThrowError("Windows is not supported");
+    expect(() => {
+      getOS("centos");
+    }).toThrowError("centos is not supported");
+  });
+});

__tests__/index.test.js

@@ -1,23 +0,0 @@
-const wait = require('./wait');
-const process = require('process');
-const cp = require('child_process');
-const path = require('path');
-
-test('throws invalid number', async() => {
-    await expect(wait('foo')).rejects.toThrow('milleseconds not a number');
-});
-
-test('wait 500 ms', async() => {
-    const start = new Date();
-    await wait(500);
-    const end = new Date();
-    var delta = Math.abs(end - start);
-    expect(delta).toBeGreaterThan(450);
-});
-
-// shows how the runner will run a javascript action with env / stdout protocol
-test('test runs', () => {
-    process.env['INPUT_MILLISECONDS'] = 500;
-    const ip = path.join(__dirname, 'index.js');
-    console.log(cp.execSync(`node ${ip}`).toString());
-})