fix CI

test/test.ts

@@ -12,8 +12,8 @@ tap.test('should print a overview to console', async () => {
 })
 
 tap.test('should get os', async () => {
+  let resultMac = await testEnv.isMacAsync()
   let resultLinux = await testEnv.isLinuxAsync()
-  let resultMac = await testEnv.isMacAsync
   let resultWindows = await testEnv.isWindowsAsync()
   const osModule = await import('os')
   if (resultMac) {
@@ -29,4 +29,10 @@ tap.test('should get os', async () => {
   
 })
 
+tap.test('should state wether we are in CI', async () => {
+  if(process.env.CI) {
+    expect(testEnv.isCI).to.be.true()
+  }
+})
+
 tap.start()