Added support for GPG

__tests__/util.test.ts

@@ -0,0 +1,61 @@
+import path = require('path');
+
+const env = process.env;
+
+describe('util tests', () => {
+  beforeEach(() => {
+    const tempEnv = Object.assign({}, env);
+    delete tempEnv.RUNNER_TEMP;
+    delete tempEnv.USERPROFILE;
+    process.env = tempEnv;
+    Object.defineProperty(process, 'platform', {value: 'linux'});
+  });
+
+  describe('getTempDir', () => {
+    it('gets temp dir using env', () => {
+      process.env['RUNNER_TEMP'] = 'defaulttmp';
+      const util = require('../src/util');
+
+      const tempDir = util.getTempDir();
+
+      expect(tempDir).toEqual(process.env['RUNNER_TEMP']);
+    });
+
+    it('gets temp dir for windows using userprofile', () => {
+      Object.defineProperty(process, 'platform', {value: 'win32'});
+      process.env['USERPROFILE'] = 'winusertmp';
+      const util = require('../src/util');
+
+      const tempDir = util.getTempDir();
+
+      expect(tempDir).toEqual(
+        path.join(process.env['USERPROFILE'], 'actions', 'temp')
+      );
+    });
+
+    it('gets temp dir for windows using c drive', () => {
+      Object.defineProperty(process, 'platform', {value: 'win32'});
+      const util = require('../src/util');
+
+      const tempDir = util.getTempDir();
+
+      expect(tempDir).toEqual(path.join('C:\\', 'actions', 'temp'));
+    });
+
+    it('gets temp dir for mac', () => {
+      Object.defineProperty(process, 'platform', {value: 'darwin'});
+      const util = require('../src/util');
+
+      const tempDir = util.getTempDir();
+
+      expect(tempDir).toEqual(path.join('/Users', 'actions', 'temp'));
+    });
+
+    it('gets temp dir for linux', () => {
+      const util = require('../src/util');
+      const tempDir = util.getTempDir();
+
+      expect(tempDir).toEqual(path.join('/home', 'actions', 'temp'));
+    });
+  });
+});