mirror of
https://github.com/kubernetes-sigs/kustomize.git
synced 2026-06-10 16:42:51 +00:00
Improve Transformer with Namespace tests.
- Reorganize test into test tables. - Ensure that every test case, convers SMP and JSONPatch by using Deployment as kind first and then "MyCRD" as kind. - Add tests involving namespaces. - Add tests involving reordering of patches.
This commit is contained in:
Jerome Brette
@@ -4,6 +4,7 @@
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package main_test
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import (
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"fmt"
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"strings"
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"testing"
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@@ -533,3 +534,664 @@ paths:
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t.Fatalf("expected error to contain %q but get %v", "conflict", err)
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}
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}
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// simple utility function to add an namespace in a resource
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// used as base, patch or expected result. Simply looks
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// for specs: in order to add namespace: xxxx before this line
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func addNamespace(namespace string, base string) string {
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res := strings.Replace(base,
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"\nspec:\n",
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"\n namespace: "+namespace+"\nspec:\n",
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1)
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return res
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}
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// unExpectedError function handles unexpected error
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func unExpectedError(t *testing.T, name string, err error) {
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t.Fatalf("%q; - unexpected error %v", name, err)
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}
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// compareExpectedError compares the expectedError and the actualError return by GetFieldValue
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func compareExpectedError(t *testing.T, name string, err error, errorMsg string) {
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if err == nil {
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t.Fatalf("%q; - should return error, but no error returned", name)
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}
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if !strings.Contains(err.Error(), errorMsg) {
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t.Fatalf("%q; - expected error: \"%s\", got error: \"%v\"",
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name, errorMsg, err.Error())
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}
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}
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const Deployment string = "Deployment"
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const MyCRD string = "MyCRD"
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// baseResource produces a base object which used to test
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// patch transformation
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// Also the structure is matching the Deployment syntax
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// the kind can be replaced to allow testing using CRD
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// without access to the schema
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func baseResource(kind string) string {
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res := `
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apiVersion: apps/v1
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kind: %s
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metadata:
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name: deploy1
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spec:
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template:
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metadata:
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labels:
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old-label: old-value
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spec:
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containers:
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- name: nginx
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image: nginx`
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return fmt.Sprintf(res, kind)
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}
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// addContainerAndEnvPatch produces a patch object which adds
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// an entry in the env slice of the first/nginx container
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// as well as adding a label in the metadata
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// Note that for SMP/WithSchema merge, the name:nginx entry
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// is mandatory
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func addLabelAndEnvPatch(kind string) string {
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res := `
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apiVersion: apps/v1
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kind: %s
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metadata:
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name: deploy1
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spec:
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template:
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metadata:
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labels:
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some-label: some-value
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spec:
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containers:
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- name: nginx
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env:
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- name: SOMEENV
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value: SOMEVALUE`
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return fmt.Sprintf(res, kind)
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}
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// addContainerAndEnvPatch produces a patch object which adds
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// an entry in the env slice of the first/nginx container
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// as well as adding a second container in the container list
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// Note that for SMP/WithSchema merge, the name:nginx entry
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// is mandatory
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func addContainerAndEnvPatch(kind string) string {
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res := `
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apiVersion: apps/v1
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kind: %s
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metadata:
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name: deploy1
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spec:
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template:
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spec:
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containers:
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- name: nginx
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env:
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- name: ANOTHERENV
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value: ANOTHERVALUE
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- name: anothercontainer
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image: anotherimage`
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return fmt.Sprintf(res, kind)
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}
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// addContainerAndEnvPatch produces a patch object which replaces
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// the value of the image field in the first/nginx container
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// Note that for SMP/WithSchema merge, the name:nginx entry
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// is mandatory
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func changeImagePatch(kind string, newImage string) string {
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res := `
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apiVersion: apps/v1
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kind: %s
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metadata:
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name: deploy1
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spec:
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template:
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spec:
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containers:
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- name: nginx
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image: %s`
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return fmt.Sprintf(res, kind, newImage)
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}
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// utility method building the expected output of a SMP
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func expectedResultSMP() string {
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return `apiVersion: apps/v1
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kind: Deployment
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metadata:
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name: deploy1
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spec:
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template:
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metadata:
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labels:
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old-label: old-value
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some-label: some-value
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spec:
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containers:
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- env:
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- name: SOMEENV
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value: SOMEVALUE
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image: nginx
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name: nginx
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`
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}
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// utility method building the expected output of a JMP.
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// TODO(jeb): imagename parameter is only here to deal with what
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// seems to be a bug in conflictdetector and JMP.
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func expectedResultJMP(imagename string) string {
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res := `apiVersion: apps/v1
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kind: MyCRD
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metadata:
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name: deploy1
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spec:
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template:
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metadata:
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labels:
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old-label: old-value
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some-label: some-value
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spec:
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containers:
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- env:
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- name: SOMEENV
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value: SOMEVALUE
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name: nginx
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`
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// This piece of code is only here to deal
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// a bug in conflictdetector
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if imagename == "" {
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return res
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}
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res = `apiVersion: apps/v1
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kind: MyCRD
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metadata:
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name: deploy1
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spec:
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template:
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metadata:
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labels:
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old-label: old-value
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some-label: some-value
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spec:
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containers:
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- image: %s
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name: nginx
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`
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return fmt.Sprintf(res, imagename)
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}
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// utility method to build the expected result of a multipatch
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// the order of the patches still have influence especially
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// in the insertion location within arrays.
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func expectedResultMultiPatch(kind string, reversed bool) string {
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res := `apiVersion: apps/v1
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kind: %s
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metadata:
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name: deploy1
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spec:
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template:
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metadata:
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labels:
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old-label: old-value
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some-label: some-value
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spec:
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containers:
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- env:
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- name: ANOTHERENV
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value: ANOTHERVALUE
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- name: SOMEENV
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value: SOMEVALUE
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image: nginx:latest
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name: nginx
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- image: anotherimage
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name: anothercontainer
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`
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reversedres := `apiVersion: apps/v1
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kind: %s
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metadata:
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name: deploy1
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spec:
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template:
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metadata:
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labels:
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old-label: old-value
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some-label: some-value
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spec:
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containers:
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- env:
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- name: SOMEENV
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value: SOMEVALUE
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- name: ANOTHERENV
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value: ANOTHERVALUE
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image: nginx:latest
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name: nginx
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- image: anotherimage
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name: anothercontainer
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`
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if reversed {
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return fmt.Sprintf(reversedres, kind)
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}
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return fmt.Sprintf(res, kind)
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}
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func toConfig(patches ...string) string {
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config := `
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apiVersion: builtin
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kind: PatchStrategicMergeTransformer
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metadata:
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name: notImportantHere
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paths:
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`
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for idx, _ := range patches {
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config = fmt.Sprintf("%s\n- ./patch%d.yaml", config, idx)
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}
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return config
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}
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// TestOverlayRun validates the single patch use cases
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// regarless of the schema availibility, which in turns
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// relies on StrategicMergePatch or simple JSON Patch.
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func TestOverlayRun(t *testing.T) {
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tests := []struct {
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name string
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base string
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patch string
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expected string
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errorExpected bool
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errorMsg string
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}{
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{
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name: "withschema",
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base: baseResource(Deployment),
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patch: addLabelAndEnvPatch(Deployment),
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errorExpected: false,
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expected: expectedResultSMP(),
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},
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{
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name: "noschema",
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base: baseResource(MyCRD),
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patch: addLabelAndEnvPatch(MyCRD),
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errorExpected: false,
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expected: expectedResultJMP(""),
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},
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}
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tc := plugins_test.NewEnvForTest(t).Set()
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defer tc.Reset()
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tc.BuildGoPlugin(
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"builtin", "", "PatchStrategicMergeTransformer")
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for _, test := range tests {
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th := kusttest_test.NewKustTestPluginHarness(t, fmt.Sprintf("/%s", test.name))
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th.WriteF(fmt.Sprintf("/%s/patch%d.yaml", test.name, 0), test.patch)
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if test.errorExpected {
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err := th.ErrorFromLoadAndRunTransformer(toConfig(test.patch), test.base)
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compareExpectedError(t, test.name, err, test.errorMsg)
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} else {
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rm := th.LoadAndRunTransformer(toConfig(test.patch), test.base)
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th.AssertActualEqualsExpected(rm, test.expected)
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}
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}
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}
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// TestMultiplePatches checks that the patches are applied
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// properly, that the same result is obtained,
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// regardless of the order of the patches and regardless
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// of the schema availibility (SMP vs JSON)
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func TestMultiplePatches(t *testing.T) {
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tests := []struct {
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name string
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base string
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patch []string
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expected string
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errorExpected bool
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errorMsg string
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}{
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{
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name: "withschema-label-image-container",
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base: baseResource(Deployment),
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patch: []string{
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addLabelAndEnvPatch(Deployment),
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changeImagePatch(Deployment, "nginx:latest"),
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addContainerAndEnvPatch(Deployment),
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},
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errorExpected: false,
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expected: expectedResultMultiPatch(Deployment, false),
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},
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{
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name: "withschema-image-container-label",
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base: baseResource(Deployment),
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patch: []string{
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changeImagePatch(Deployment, "nginx:latest"),
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addContainerAndEnvPatch(Deployment),
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addLabelAndEnvPatch(Deployment),
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},
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errorExpected: false,
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expected: expectedResultMultiPatch(Deployment, true),
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},
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{
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name: "withschema-container-label-image",
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base: baseResource(Deployment),
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patch: []string{
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addContainerAndEnvPatch(Deployment),
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addLabelAndEnvPatch(Deployment),
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changeImagePatch(Deployment, "nginx:latest"),
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},
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errorExpected: false,
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expected: expectedResultMultiPatch(Deployment, true),
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},
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{
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name: "noschema-label-image-container",
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base: baseResource(MyCRD),
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patch: []string{
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addLabelAndEnvPatch(MyCRD),
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changeImagePatch(MyCRD, "nginx:latest"),
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addContainerAndEnvPatch(MyCRD),
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},
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// This should work
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errorExpected: true,
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errorMsg: "conflict",
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},
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{
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name: "noschema-image-container-label",
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base: baseResource(MyCRD),
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patch: []string{
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changeImagePatch(MyCRD, "nginx:latest"),
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addContainerAndEnvPatch(MyCRD),
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addLabelAndEnvPatch(MyCRD),
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},
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// This should work
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errorExpected: true,
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errorMsg: "conflict",
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},
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{
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name: "noschema-container-label-image",
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base: baseResource(MyCRD),
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patch: []string{
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addContainerAndEnvPatch(MyCRD),
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addLabelAndEnvPatch(MyCRD),
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changeImagePatch(MyCRD, "nginx:latest"),
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},
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// This should work
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errorExpected: true,
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errorMsg: "conflict",
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},
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}
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tc := plugins_test.NewEnvForTest(t).Set()
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defer tc.Reset()
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tc.BuildGoPlugin(
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"builtin", "", "PatchStrategicMergeTransformer")
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for _, test := range tests {
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th := kusttest_test.NewKustTestPluginHarness(t, fmt.Sprintf("/%s", test.name))
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for idx, patch := range test.patch {
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th.WriteF(fmt.Sprintf("/%s/patch%d.yaml", test.name, idx), patch)
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}
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if test.errorExpected {
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err := th.ErrorFromLoadAndRunTransformer(toConfig(test.patch...), test.base)
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compareExpectedError(t, test.name, err, test.errorMsg)
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} else {
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rm := th.LoadAndRunTransformer(toConfig(test.patch...), test.base)
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th.AssertActualEqualsExpected(rm, test.expected)
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}
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}
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}
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// TestMultiplePatchesWithConflict checks that the conflict are
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// detected regardless of the order of the patches and regardless
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// of the schema availibility (SMP vs JSON)
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func TestMultiplePatchesWithConflict(t *testing.T) {
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tests := []struct {
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name string
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base string
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patch []string
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expected string
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errorExpected bool
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errorMsg string
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}{
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{
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name: "withschema-label-latest-1.7.9",
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base: baseResource(Deployment),
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patch: []string{
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addLabelAndEnvPatch(Deployment),
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changeImagePatch(Deployment, "nginx:latest"),
|
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changeImagePatch(Deployment, "nginx:1.7.9"),
|
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},
|
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errorExpected: true,
|
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errorMsg: "conflict",
|
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},
|
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{
|
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name: "withschema-latest-label-1.7.9",
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base: baseResource(Deployment),
|
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patch: []string{
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changeImagePatch(Deployment, "nginx:latest"),
|
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addLabelAndEnvPatch(Deployment),
|
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changeImagePatch(Deployment, "nginx:1.7.9"),
|
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},
|
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errorExpected: true,
|
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errorMsg: "conflict",
|
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},
|
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{
|
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name: "withschema-1.7.9-label-latest",
|
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base: baseResource(Deployment),
|
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patch: []string{
|
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changeImagePatch(Deployment, "nginx:1.7.9"),
|
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addLabelAndEnvPatch(Deployment),
|
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changeImagePatch(Deployment, "nginx:latest"),
|
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},
|
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errorExpected: true,
|
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errorMsg: "conflict",
|
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},
|
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{
|
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name: "withschema-1.7.9-latest-label",
|
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base: baseResource(Deployment),
|
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patch: []string{
|
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changeImagePatch(Deployment, "nginx:1.7.9"),
|
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changeImagePatch(Deployment, "nginx:latest"),
|
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addLabelAndEnvPatch(Deployment),
|
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changeImagePatch(Deployment, "nginx:nginx"),
|
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},
|
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errorExpected: true,
|
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errorMsg: "conflict",
|
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},
|
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{
|
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name: "noschema-label-latest-1.7.9",
|
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base: baseResource(MyCRD),
|
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patch: []string{
|
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addLabelAndEnvPatch(MyCRD),
|
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changeImagePatch(MyCRD, "nginx:latest"),
|
||||
changeImagePatch(MyCRD, "nginx:1.7.9"),
|
||||
},
|
||||
errorExpected: true,
|
||||
errorMsg: "conflict",
|
||||
},
|
||||
{
|
||||
name: "noschema-latest-label-1.7.9",
|
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base: baseResource(MyCRD),
|
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patch: []string{
|
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changeImagePatch(MyCRD, "nginx:latest"),
|
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addLabelAndEnvPatch(MyCRD),
|
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changeImagePatch(MyCRD, "nginx:1.7.9"),
|
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},
|
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errorExpected: false,
|
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//TODO(jeb): Why is there no conflict detected ?
|
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expected: expectedResultJMP("nginx:1.7.9"),
|
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},
|
||||
{
|
||||
name: "noschema-1.7.9-label-latest",
|
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base: baseResource(MyCRD),
|
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patch: []string{
|
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changeImagePatch(MyCRD, "nginx:1.7.9"),
|
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addLabelAndEnvPatch(MyCRD),
|
||||
changeImagePatch(MyCRD, "nginx:latest"),
|
||||
},
|
||||
errorExpected: false,
|
||||
//TODO(jeb): Why is there no conflict detected ?
|
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expected: expectedResultJMP("nginx:latest"),
|
||||
},
|
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{
|
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name: "noschema-1.7.9-latest-label",
|
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base: baseResource(MyCRD),
|
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patch: []string{
|
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changeImagePatch(MyCRD, "nginx:1.7.9"),
|
||||
changeImagePatch(MyCRD, "nginx:latest"),
|
||||
addLabelAndEnvPatch(MyCRD),
|
||||
changeImagePatch(MyCRD, "nginx:nginx"),
|
||||
},
|
||||
errorExpected: true,
|
||||
},
|
||||
}
|
||||
|
||||
tc := plugins_test.NewEnvForTest(t).Set()
|
||||
defer tc.Reset()
|
||||
tc.BuildGoPlugin(
|
||||
"builtin", "", "PatchStrategicMergeTransformer")
|
||||
|
||||
for _, test := range tests {
|
||||
th := kusttest_test.NewKustTestPluginHarness(t, fmt.Sprintf("/%s", test.name))
|
||||
for idx, patch := range test.patch {
|
||||
th.WriteF(fmt.Sprintf("/%s/patch%d.yaml", test.name, idx), patch)
|
||||
}
|
||||
|
||||
if test.errorExpected {
|
||||
err := th.ErrorFromLoadAndRunTransformer(toConfig(test.patch...), test.base)
|
||||
compareExpectedError(t, test.name, err, test.errorMsg)
|
||||
} else {
|
||||
rm := th.LoadAndRunTransformer(toConfig(test.patch...), test.base)
|
||||
th.AssertActualEqualsExpected(rm, test.expected)
|
||||
}
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
// TestMultipleNamespaces before the same patch
|
||||
// on two objects have the same name but in a different namespaces
|
||||
func TestMultipleNamespaces(t *testing.T) {
|
||||
tests := []struct {
|
||||
name string
|
||||
base []string
|
||||
patch []string
|
||||
expected []string
|
||||
errorExpected bool
|
||||
errorMsg string
|
||||
}{
|
||||
{
|
||||
name: "withschema-ns1-ns2",
|
||||
base: []string{
|
||||
addNamespace("ns1", baseResource(Deployment)),
|
||||
addNamespace("ns2", baseResource(Deployment)),
|
||||
},
|
||||
patch: []string{
|
||||
addNamespace("ns1", addLabelAndEnvPatch(Deployment)),
|
||||
addNamespace("ns2", addLabelAndEnvPatch(Deployment)),
|
||||
},
|
||||
errorExpected: false,
|
||||
expected: []string{
|
||||
addNamespace("ns1", expectedResultSMP()),
|
||||
addNamespace("ns2", expectedResultSMP()),
|
||||
},
|
||||
},
|
||||
{
|
||||
name: "noschema-ns1-ns2",
|
||||
base: []string{
|
||||
addNamespace("ns1", baseResource(MyCRD)),
|
||||
addNamespace("ns2", baseResource(MyCRD)),
|
||||
},
|
||||
patch: []string{
|
||||
addNamespace("ns1", addLabelAndEnvPatch(MyCRD)),
|
||||
addNamespace("ns2", addLabelAndEnvPatch(MyCRD)),
|
||||
},
|
||||
errorExpected: false,
|
||||
expected: []string{
|
||||
addNamespace("ns1", expectedResultJMP("")),
|
||||
addNamespace("ns2", expectedResultJMP("")),
|
||||
},
|
||||
},
|
||||
{
|
||||
name: "withschema-ns1-ns2",
|
||||
base: []string{addNamespace("ns1", baseResource(Deployment))},
|
||||
patch: []string{addNamespace("ns2", changeImagePatch(Deployment, "nginx:1.7.9"))},
|
||||
errorExpected: true,
|
||||
errorMsg: "failed to find unique target for patch",
|
||||
},
|
||||
{
|
||||
name: "withschema-nil-ns2",
|
||||
base: []string{baseResource(Deployment)},
|
||||
patch: []string{addNamespace("ns2", changeImagePatch(Deployment, "nginx:1.7.9"))},
|
||||
errorExpected: true,
|
||||
errorMsg: "failed to find unique target for patch",
|
||||
},
|
||||
{
|
||||
name: "withschema-ns1-nil",
|
||||
base: []string{addNamespace("ns1", baseResource(Deployment))},
|
||||
patch: []string{changeImagePatch(Deployment, "nginx:1.7.9")},
|
||||
errorExpected: true,
|
||||
errorMsg: "failed to find unique target for patch",
|
||||
},
|
||||
{
|
||||
name: "noschema-ns1-ns2",
|
||||
base: []string{addNamespace("ns1", baseResource(MyCRD))},
|
||||
patch: []string{addNamespace("ns2", changeImagePatch(MyCRD, "nginx:1.7.9"))},
|
||||
errorExpected: true,
|
||||
errorMsg: "failed to find unique target for patch",
|
||||
},
|
||||
{
|
||||
name: "noschema-nil-ns2",
|
||||
base: []string{baseResource(MyCRD)},
|
||||
patch: []string{addNamespace("ns2", changeImagePatch(MyCRD, "nginx:1.7.9"))},
|
||||
errorExpected: true,
|
||||
errorMsg: "failed to find unique target for patch",
|
||||
},
|
||||
{
|
||||
name: "noschema-ns1-nil",
|
||||
base: []string{addNamespace("ns1", baseResource(MyCRD))},
|
||||
patch: []string{changeImagePatch(MyCRD, "nginx:1.7.9")},
|
||||
errorExpected: true,
|
||||
errorMsg: "failed to find unique target for patch",
|
||||
},
|
||||
}
|
||||
|
||||
tc := plugins_test.NewEnvForTest(t).Set()
|
||||
defer tc.Reset()
|
||||
tc.BuildGoPlugin(
|
||||
"builtin", "", "PatchStrategicMergeTransformer")
|
||||
|
||||
for _, test := range tests {
|
||||
th := kusttest_test.NewKustTestPluginHarness(t, fmt.Sprintf("/%s", test.name))
|
||||
for idx, patch := range test.patch {
|
||||
th.WriteF(fmt.Sprintf("/%s/patch%d.yaml", test.name, idx), patch)
|
||||
}
|
||||
|
||||
if test.errorExpected {
|
||||
err := th.ErrorFromLoadAndRunTransformer(toConfig(test.patch...), strings.Join(test.base, "\n---\n"))
|
||||
compareExpectedError(t, test.name, err, test.errorMsg)
|
||||
} else {
|
||||
rm := th.LoadAndRunTransformer(toConfig(test.patch...), strings.Join(test.base, "\n---\n"))
|
||||
th.AssertActualEqualsExpected(rm, strings.Join(test.expected, "---\n"))
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
Reference in New Issue
Block a user