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// Copyright 2019 The Kubernetes Authors.
// SPDX-License-Identifier: Apache-2.0
package filters_test
import (
"bytes"
"testing"
"github.com/stretchr/testify/assert"
"sigs.k8s.io/kustomize/kyaml/kio"
. "sigs.k8s.io/kustomize/kyaml/kio/filters"
"sigs.k8s.io/kustomize/kyaml/yaml"
)
func TestGrepFilter_Filter(t *testing.T) {
in := `kind: Deployment
metadata:
labels:
app: nginx2
name: foo
annotations:
app: nginx2
spec:
replicas: 1
---
kind: Deployment
metadata:
labels:
app: nginx
annotations:
app: nginx
name: bar
spec:
replicas: 3
---
kind: Service
metadata:
name: foo
annotations:
app: nginx
spec:
selector:
app: nginx
`
out := &bytes.Buffer{}
err := kio.Pipeline{
Inputs: []kio.Reader{&kio.ByteReader{Reader: bytes.NewBufferString(in)}},
Filters: []kio.Filter{GrepFilter{Path: []string{"metadata", "name"}, Value: "foo"}},
Outputs: []kio.Writer{kio.ByteWriter{Writer: out}},
}.Execute()
if !assert.NoError(t, err) {
t.FailNow()
}
if !assert.Equal(t, `kind: Deployment
metadata:
labels:
app: nginx2
name: foo
annotations:
app: nginx2
spec:
replicas: 1
---
kind: Service
metadata:
name: foo
annotations:
app: nginx
spec:
selector:
app: nginx
`, out.String()) {
t.FailNow()
}
out = &bytes.Buffer{}
err = kio.Pipeline{
Inputs: []kio.Reader{&kio.ByteReader{Reader: bytes.NewBufferString(in)}},
Filters: []kio.Filter{GrepFilter{Path: []string{"kind"}, Value: "Deployment"}},
Outputs: []kio.Writer{kio.ByteWriter{Writer: out}},
}.Execute()
if !assert.NoError(t, err) {
t.FailNow()
}
if !assert.Equal(t, `kind: Deployment
metadata:
labels:
app: nginx2
name: foo
annotations:
app: nginx2
spec:
replicas: 1
---
kind: Deployment
metadata:
labels:
app: nginx
annotations:
app: nginx
name: bar
spec:
replicas: 3
`, out.String()) {
t.FailNow()
}
out = &bytes.Buffer{}
err = kio.Pipeline{
Inputs: []kio.Reader{&kio.ByteReader{Reader: bytes.NewBufferString(in)}},
Filters: []kio.Filter{GrepFilter{Path: []string{"spec", "replicas"}, Value: "3"}},
Outputs: []kio.Writer{kio.ByteWriter{Writer: out}},
}.Execute()
if !assert.NoError(t, err) {
t.FailNow()
}
if !assert.Equal(t, `kind: Deployment
metadata:
labels:
app: nginx
annotations:
app: nginx
name: bar
spec:
replicas: 3
`, out.String()) {
t.FailNow()
}
out = &bytes.Buffer{}
err = kio.Pipeline{
Inputs: []kio.Reader{&kio.ByteReader{Reader: bytes.NewBufferString(in)}},
Filters: []kio.Filter{GrepFilter{Path: []string{"spec", "not-present"}, Value: "3"}},
Outputs: []kio.Writer{kio.ByteWriter{Writer: out}},
}.Execute()
if !assert.NoError(t, err) {
t.FailNow()
}
if !assert.Equal(t, ``, out.String()) {
t.FailNow()
}
}
func TestGrepFilter_init(t *testing.T) {
assert.Equal(t, GrepFilter{}, Filters["GrepFilter"]())
}
func TestGrepFilter_error(t *testing.T) {
v, err := GrepFilter{Path: []string{"metadata", "name"},
Value: "foo"}.Filter([]*yaml.RNode{{}})
if !assert.NoError(t, err) {
t.FailNow()
}
assert.Nil(t, v)
}
|
