feat(1765): update tests, move unit test to proper file, improve removeEmptyInterfaces algo

Signed-off-by: Martin Jirku <martin@jirku.sk>

script/test/fixtures/fsgroup/output-k8s.yaml

@@ -2,7 +2,6 @@
 apiVersion: apps/v1
 kind: Deployment
 metadata:
-  creationTimestamp: null
   labels:
     io.kompose.service: pgadmin
   name: pgadmin
@@ -15,7 +14,6 @@ spec:
     type: Recreate
   template:
     metadata:
-      creationTimestamp: null
       labels:
         io.kompose.network/fsgroup-default: "true"
         io.kompose.service: pgadmin
@@ -28,7 +26,6 @@ spec:
               value: pgadmin_password
           image: dpage/pgadmin4
           name: pgadmin
-          resources: {}
           volumeMounts:
             - mountPath: /var/lib/pgadmin
               name: pgadmin-data
@@ -44,7 +41,6 @@ spec:
 apiVersion: v1
 kind: PersistentVolumeClaim
 metadata:
-  creationTimestamp: null
   labels:
     io.kompose.service: pgadmin-data
   name: pgadmin-data

script/test/fixtures/fsgroup/output-os.yaml

@@ -2,7 +2,6 @@
 apiVersion: apps.openshift.io/v1
 kind: DeploymentConfig
 metadata:
-  creationTimestamp: null
   labels:
     io.kompose.service: pgadmin
   name: pgadmin
@@ -11,11 +10,9 @@ spec:
   selector:
     io.kompose.service: pgadmin
   strategy:
-    resources: {}
     type: Recreate
   template:
     metadata:
-      creationTimestamp: null
       labels:
         io.kompose.network/fsgroup-default: "true"
         io.kompose.service: pgadmin
@@ -28,7 +25,6 @@ spec:
               value: pgadmin_password
           image: ' '
           name: pgadmin
-          resources: {}
           volumeMounts:
             - mountPath: /var/lib/pgadmin
               name: pgadmin-data
@@ -55,7 +51,6 @@ spec:
 apiVersion: image.openshift.io/v1
 kind: ImageStream
 metadata:
-  creationTimestamp: null
   labels:
     io.kompose.service: pgadmin
   name: pgadmin
@@ -63,12 +58,9 @@ spec:
   lookupPolicy:
     local: false
   tags:
-    - annotations: null
-      from:
+    - from:
         kind: DockerImage
         name: dpage/pgadmin4
-      generation: null
-      importPolicy: {}
       name: latest
       referencePolicy:
         type: ""
@@ -77,7 +69,6 @@ spec:
 apiVersion: v1
 kind: PersistentVolumeClaim
 metadata:
-  creationTimestamp: null
   labels:
     io.kompose.service: pgadmin-data
   name: pgadmin-data