fix(test): add test for environment

test/test.ts

@@ -44,6 +44,10 @@ tap.test('smartshell should run async', async () => {
   });
 });
 
+tap.test('should be able to find git', async () => {
+  testSmartshell.exec('git --version');
+})
+
 tap.start({
   throwOnError: true
 });