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feat: support verify the specific k8s resource count #57

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Merged
merged 2 commits into from
May 6, 2023
Merged

feat: support verify the specific k8s resource count #57

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83dd385
feat: support to verify specific k8s resources count
LinuxSuRen Apr 25, 2023
d11657d
feat: support to verify specific k8s resources count
LinuxSuRen Apr 25, 2023
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19 changes: 19 additions & 0 deletions pkg/runner/kubernetes/client.go
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Original file line number Diff line number Diff line change
Expand Up @@ -76,6 +76,8 @@ func GetClient() *http.Client {
// ResourceValidator represents a generic resource validator
type ResourceValidator interface {
Exist() bool
Count() int
ExpectCount(int) bool
ExpectField(value interface{}, fields ...string) bool
}

Expand All @@ -84,6 +86,7 @@ type defaultResourceValidator struct {
err error
}

// Exist returns true if the specific resource exist
func (v *defaultResourceValidator) Exist() bool {
if v.err != nil {
fmt.Println(v.err)
Expand All @@ -92,6 +95,22 @@ func (v *defaultResourceValidator) Exist() bool {
return v.data != nil && len(v.data) > 0
}

// Count returns the count of the specific resources
func (v *defaultResourceValidator) Count() int {
val, ok, err := unstructured.NestedField(v.data, "items")
if ok && err == nil {
items := val.([]interface{})
return len(items)
}
return -1
}

// ExpectCount returns true if there are specific number of the target k8s resources
func (v *defaultResourceValidator) ExpectCount(expect int) bool {
return expect == v.Count()
}

// ExpectField verify the specific field and value
func (v *defaultResourceValidator) ExpectField(value interface{}, fields ...string) (result bool) {
val, ok, err := unstructured.NestedField(v.data, fields...)
if !ok || err != nil {
Expand Down
7 changes: 6 additions & 1 deletion pkg/runner/kubernetes/verify_test.go
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Original file line number Diff line number Diff line change
Expand Up @@ -70,6 +70,11 @@ func TestKubernetesValidatorFunc(t *testing.T) {
expression: `k8s("daemonsets", "ns", "foo").Exist()`,
prepare: prepareDaemonset,
expectBool: true,
}, {
name: "daemonset count",
expression: `k8s("daemonsets", "ns", "foo").ExpectCount(0)`,
prepare: prepareDaemonset,
expectBool: true,
}, {
name: "no kind",
expression: `k8s({"foo": "bar"}, "ns", "foo").Exist()`,
Expand Down Expand Up @@ -121,7 +126,7 @@ func prepareDaemonset() {
Get("/apis/apps/v1/namespaces/ns/daemonsets/foo").
MatchHeader("Authorization", defaultToken).
Reply(http.StatusOK).
JSON(`{"kind":"daemonset"}`)
JSON(`{"kind":"daemonset","items":[]}`)
}

func prepareCRDVM() {
Expand Down