Various unit test related improvements (#9865)

* api4: improved error handling

* system_store: more logs

* integrate go-junit-report into test-te/test-ee

* add CI_MINIO_HOST and CI_INBUCKET_HOST instead of CI_HOST

* comment re: minio configuration issue

* fix TestStartServerPortUnavailable to pass even when root can bind to :21

* skip TestFindManifest_FolderPermission while running as root

services/filesstore/filesstore_test.go

@@ -56,7 +56,7 @@ func TestS3FileBackendTestSuiteWithEncryption(t *testing.T) {
 }
 
 func runBackendTest(t *testing.T, encrypt bool) {
-	s3Host := os.Getenv("CI_HOST")
+	s3Host := os.Getenv("CI_MINIO_HOST")
 	if s3Host == "" {
 		s3Host = "dockerhost"
 	}

services/mailservice/inbucket.go

@@ -187,7 +187,7 @@ func RetryInbucket(attempts int, callback func() error) (err error) {
 
 func getInbucketHost() (host string) {
 
-	inbucket_host := os.Getenv("CI_HOST")
+	inbucket_host := os.Getenv("CI_INBUCKET_HOST")
 	if inbucket_host == "" {
 		inbucket_host = "dockerhost"
 	}