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Add more tests around yaml parsing.

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This commit is contained in:
jregan
2020-11-24 14:15:45 -08:00
parent 0d030e3095
commit 1eb378254a
6 changed files with 398 additions and 25 deletions
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8
kyaml/kio/byteio_reader.go
View File

@@ -85,6 +85,14 @@ func ParseAll(inputs ...string) ([]*yaml.RNode, error) {
}).Read()
}
// FromBytes reads from a byte slice.
func FromBytes(bs []byte) ([]*yaml.RNode, error) {
return (&ByteReader{
OmitReaderAnnotations: true,
Reader: bytes.NewBuffer(bs),
}).Read()
}
// StringAll writes all of the resources to a string
func StringAll(resources []*yaml.RNode) (string, error) {
var b bytes.Buffer

303
kyaml/kio/byteio_reader_test.go
View File

@@ -423,3 +423,306 @@ metadata:
})
}
}
func TestFromBytes(t *testing.T) {
type expected struct {
isErr bool
sOut []string
}
testCases := map[string]struct {
input []byte
exp expected
}{
"garbage": {
input: []byte("garbageIn: garbageOut"),
exp: expected{
sOut: []string{"garbageIn: garbageOut"},
},
},
"noBytes": {
input: []byte{},
exp: expected{
sOut: []string{},
},
},
"goodJson": {
input: []byte(`
{"apiVersion":"v1","kind":"ConfigMap","metadata":{"name":"winnie"}}
`),
exp: expected{
sOut: []string{`
{"apiVersion": "v1", "kind": "ConfigMap", "metadata": {"name": "winnie"}}
`},
},
},
"goodYaml1": {
input: []byte(`
apiVersion: v1
kind: ConfigMap
metadata:
name: winnie
`),
exp: expected{
sOut: []string{`
apiVersion: v1
kind: ConfigMap
metadata:
name: winnie
`},
},
},
"goodYaml2": {
input: []byte(`
apiVersion: v1
kind: ConfigMap
metadata:
name: winnie
---
apiVersion: v1
kind: ConfigMap
metadata:
name: winnie
`),
exp: expected{
sOut: []string{`
apiVersion: v1
kind: ConfigMap
metadata:
name: winnie
`, `
apiVersion: v1
kind: ConfigMap
metadata:
name: winnie
`},
},
},
"localConfigYaml": {
input: []byte(`
apiVersion: v1
kind: ConfigMap
metadata:
name: winnie-skip
annotations:
# this annotation causes the Resource to be ignored by kustomize
config.kubernetes.io/local-config: ""
---
apiVersion: v1
kind: ConfigMap
metadata:
name: winnie
`),
exp: expected{
sOut: []string{`
apiVersion: v1
kind: ConfigMap
metadata:
name: winnie-skip
annotations:
# this annotation causes the Resource to be ignored by kustomize
config.kubernetes.io/local-config: ""
`,
`
apiVersion: v1
kind: ConfigMap
metadata:
name: winnie
`},
},
},
"garbageInOneOfTwoObjects": {
input: []byte(`
apiVersion: v1
kind: ConfigMap
metadata:
name: winnie
---
WOOOOOOOOOOOOOOOOOOOOOOOOT: woot
`),
exp: expected{
sOut: []string{`
apiVersion: v1
kind: ConfigMap
metadata:
name: winnie
`,
`
WOOOOOOOOOOOOOOOOOOOOOOOOT: woot
`},
},
},
"emptyObjects": {
input: []byte(`
---
#a comment
---
`),
exp: expected{
sOut: []string{},
},
},
"Missing .metadata.name in object": {
input: []byte(`
apiVersion: v1
kind: Namespace
metadata:
annotations:
foo: bar
`),
exp: expected{
sOut: []string{`
apiVersion: v1
kind: Namespace
metadata:
annotations:
foo: bar
`},
},
},
"nil value in list": {
input: []byte(`
apiVersion: builtin
kind: ConfigMapGenerator
metadata:
name: kube100-site
labels:
app: web
testList:
- testA
-
`),
exp: expected{
isErr: true,
},
},
"List": {
input: []byte(`
apiVersion: v1
kind: List
items:
- apiVersion: v1
kind: ConfigMap
metadata:
name: winnie
- apiVersion: v1
kind: ConfigMap
metadata:
name: winnie
`),
exp: expected{
sOut: []string{`
apiVersion: v1
kind: ConfigMap
metadata:
name: winnie
`, `
apiVersion: v1
kind: ConfigMap
metadata:
name: winnie
`},
},
},
"ConfigMapList": {
input: []byte(`
apiVersion: v1
kind: ConfigMapList
items:
- apiVersion: v1
kind: ConfigMap
metadata:
name: winnie
- apiVersion: v1
kind: ConfigMap
metadata:
name: winnie
`),
exp: expected{
sOut: []string{`
apiVersion: v1
kind: ConfigMapList
items:
- apiVersion: v1
kind: ConfigMap
metadata:
name: winnie
- apiVersion: v1
kind: ConfigMap
metadata:
name: winnie
`},
},
},
"listWithAnchors": {
input: []byte(`
apiVersion: v1
kind: DeploymentList
items:
- apiVersion: apps/v1
kind: Deployment
metadata:
name: deployment-a
spec: &hostAliases
template:
spec:
hostAliases:
- hostnames:
- a.example.com
ip: 8.8.8.8
- apiVersion: apps/v1
kind: Deployment
metadata:
name: deployment-b
spec:
<<: *hostAliases
`),
exp: expected{
sOut: []string{`
apiVersion: v1
kind: DeploymentList
items:
- apiVersion: apps/v1
kind: Deployment
metadata:
name: deployment-a
spec: &hostAliases
template:
spec:
hostAliases:
- hostnames:
- a.example.com
ip: 8.8.8.8
- apiVersion: apps/v1
kind: Deployment
metadata:
name: deployment-b
spec:
!!merge <<: *hostAliases
`},
},
},
}
for n := range testCases {
tc := testCases[n]
t.Run(n, func(t *testing.T) {
rNodes, err := FromBytes(tc.input)
if err != nil {
assert.True(t, tc.exp.isErr)
return
}
assert.False(t, tc.exp.isErr)
assert.Equal(t, len(tc.exp.sOut), len(rNodes))
for i, n := range rNodes {
json, err := n.String()
assert.NoError(t, err)
assert.Equal(
t, strings.TrimSpace(tc.exp.sOut[i]),
strings.TrimSpace(json), n)
}
})
}
}