In "go test" 1.13 and higher, you cannot call parse.Flags in init()

In https://golang.org/doc/go1.13#testing

    Testing flags are now registered in the new Init function,
    which is invoked by the generated main function for the test.
    As a result, testing flags are now only registered when running
    a test binary, and packages that call flag.Parse during package
    initialization may cause tests to fail.

See:
  https://groups.google.com/d/msg/golang-nuts/rkCdS1EQwSM/4gbwNh0QAwAJ
  golang/go#21051
  https://go-review.googlesource.com/c/go/+/173722/

tests/common.go

@@ -620,8 +620,6 @@ func ParseFlags() {
  flag.StringVar(&bundleLocation, "bundle-location", defaultBundleLocation, "Path to support bundle output files")
  flag.StringVar(&customConfigPath, "custom-config", "", "Path to custom configuration files")
 
- flag.Parse()
-
  appList, err := splitCsv(appListCSV)
  if err != nil {
  logrus.Fatalf("failed to parse app list: %v. err: %v", appListCSV, err)