patchdelete_test.go

Documentation: sigs.k8s.io/kustomize/api/krusty

     1  // Copyright 2022 The Kubernetes Authors.
     2  // SPDX-License-Identifier: Apache-2.0
     3  
     4  package krusty_test
     5  
     6  import (
     7  	"testing"
     8  
     9  	kusttest_test "sigs.k8s.io/kustomize/api/testutils/kusttest"
    10  )
    11  
    12  func TestPatchDeleteOfNotExistingAttributesShouldNotAddExtraElements(t *testing.T) {
    13  	th := kusttest_test.MakeEnhancedHarness(t)
    14  	defer th.Reset()
    15  
    16  	th.WriteF("resource.yaml", `
    17  apiVersion: apps/v1
    18  kind: Deployment
    19  metadata:
    20    name: whatever
    21  spec:
    22    template:
    23      spec:
    24        containers:
    25        - env:
    26          - name: EXISTING
    27            value: EXISTING_VALUE
    28          - name: FOR_REMOVAL
    29            value: FOR_REMOVAL_VALUE
    30          name: whatever
    31          image: helloworld
    32  `)
    33  	th.WriteF("patch.yaml", `
    34  apiVersion: apps/v1
    35  kind: Deployment
    36  metadata:
    37    name: whatever
    38  spec:
    39    template:
    40      spec:
    41        containers:
    42        - name: whatever
    43          env:
    44          - name: FOR_REMOVAL
    45            $patch: delete
    46          - name: NOT_EXISTING_FOR_REMOVAL
    47            $patch: delete
    48  `)
    49  	th.WriteK(".", `
    50  resources:
    51  - resource.yaml
    52  patches:
    53  - path: patch.yaml
    54    target:
    55      kind: Deployment
    56  `)
    57  
    58  	// It's expected that removal of not existing elements should not introduce extra values,
    59  	// as a patch can be applied to multiple resources, not all of them can have all the elements being deleted.
    60  	expected := `
    61  apiVersion: apps/v1
    62  kind: Deployment
    63  metadata:
    64    name: whatever
    65  spec:
    66    template:
    67      spec:
    68        containers:
    69        - env:
    70          - name: EXISTING
    71            value: EXISTING_VALUE
    72          image: helloworld
    73          name: whatever
    74  `
    75  	m := th.Run(".", th.MakeDefaultOptions())
    76  	th.AssertActualEqualsExpected(m, expected)
    77  }
    78
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