mirror of
https://github.com/ceph/ceph-csi.git
synced 2024-11-23 06:40:23 +00:00
372 lines
10 KiB
Go
372 lines
10 KiB
Go
/*
|
|
Copyright 2015 The Kubernetes Authors.
|
|
|
|
Licensed under the Apache License, Version 2.0 (the "License");
|
|
you may not use this file except in compliance with the License.
|
|
You may obtain a copy of the License at
|
|
|
|
http://www.apache.org/licenses/LICENSE-2.0
|
|
|
|
Unless required by applicable law or agreed to in writing, software
|
|
distributed under the License is distributed on an "AS IS" BASIS,
|
|
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
See the License for the specific language governing permissions and
|
|
limitations under the License.
|
|
*/
|
|
|
|
package jsonpath
|
|
|
|
import (
|
|
"bytes"
|
|
"encoding/json"
|
|
"fmt"
|
|
"reflect"
|
|
"sort"
|
|
"strings"
|
|
"testing"
|
|
)
|
|
|
|
type jsonpathTest struct {
|
|
name string
|
|
template string
|
|
input interface{}
|
|
expect string
|
|
expectError bool
|
|
}
|
|
|
|
func testJSONPath(tests []jsonpathTest, allowMissingKeys bool, t *testing.T) {
|
|
for _, test := range tests {
|
|
j := New(test.name)
|
|
j.AllowMissingKeys(allowMissingKeys)
|
|
err := j.Parse(test.template)
|
|
if err != nil {
|
|
t.Errorf("in %s, parse %s error %v", test.name, test.template, err)
|
|
}
|
|
buf := new(bytes.Buffer)
|
|
err = j.Execute(buf, test.input)
|
|
if test.expectError {
|
|
if test.expectError && err == nil {
|
|
t.Errorf("in %s, expected execute error", test.name)
|
|
}
|
|
continue
|
|
} else if err != nil {
|
|
t.Errorf("in %s, execute error %v", test.name, err)
|
|
}
|
|
out := buf.String()
|
|
if out != test.expect {
|
|
t.Errorf(`in %s, expect to get "%s", got "%s"`, test.name, test.expect, out)
|
|
}
|
|
}
|
|
}
|
|
|
|
// testJSONPathSortOutput test cases related to map, the results may print in random order
|
|
func testJSONPathSortOutput(tests []jsonpathTest, t *testing.T) {
|
|
for _, test := range tests {
|
|
j := New(test.name)
|
|
err := j.Parse(test.template)
|
|
if err != nil {
|
|
t.Errorf("in %s, parse %s error %v", test.name, test.template, err)
|
|
}
|
|
buf := new(bytes.Buffer)
|
|
err = j.Execute(buf, test.input)
|
|
if err != nil {
|
|
t.Errorf("in %s, execute error %v", test.name, err)
|
|
}
|
|
out := buf.String()
|
|
//since map is visited in random order, we need to sort the results.
|
|
sortedOut := strings.Fields(out)
|
|
sort.Strings(sortedOut)
|
|
sortedExpect := strings.Fields(test.expect)
|
|
sort.Strings(sortedExpect)
|
|
if !reflect.DeepEqual(sortedOut, sortedExpect) {
|
|
t.Errorf(`in %s, expect to get "%s", got "%s"`, test.name, test.expect, out)
|
|
}
|
|
}
|
|
}
|
|
|
|
func testFailJSONPath(tests []jsonpathTest, t *testing.T) {
|
|
for _, test := range tests {
|
|
j := New(test.name)
|
|
err := j.Parse(test.template)
|
|
if err != nil {
|
|
t.Errorf("in %s, parse %s error %v", test.name, test.template, err)
|
|
}
|
|
buf := new(bytes.Buffer)
|
|
err = j.Execute(buf, test.input)
|
|
var out string
|
|
if err == nil {
|
|
out = "nil"
|
|
} else {
|
|
out = err.Error()
|
|
}
|
|
if out != test.expect {
|
|
t.Errorf("in %s, expect to get error %q, got %q", test.name, test.expect, out)
|
|
}
|
|
}
|
|
}
|
|
|
|
type book struct {
|
|
Category string
|
|
Author string
|
|
Title string
|
|
Price float32
|
|
}
|
|
|
|
func (b book) String() string {
|
|
return fmt.Sprintf("{Category: %s, Author: %s, Title: %s, Price: %v}", b.Category, b.Author, b.Title, b.Price)
|
|
}
|
|
|
|
type bicycle struct {
|
|
Color string
|
|
Price float32
|
|
IsNew bool
|
|
}
|
|
|
|
type empName string
|
|
type job string
|
|
type store struct {
|
|
Book []book
|
|
Bicycle []bicycle
|
|
Name string
|
|
Labels map[string]int
|
|
Employees map[empName]job
|
|
}
|
|
|
|
func TestStructInput(t *testing.T) {
|
|
|
|
storeData := store{
|
|
Name: "jsonpath",
|
|
Book: []book{
|
|
{"reference", "Nigel Rees", "Sayings of the Centurey", 8.95},
|
|
{"fiction", "Evelyn Waugh", "Sword of Honour", 12.99},
|
|
{"fiction", "Herman Melville", "Moby Dick", 8.99},
|
|
},
|
|
Bicycle: []bicycle{
|
|
{"red", 19.95, true},
|
|
{"green", 20.01, false},
|
|
},
|
|
Labels: map[string]int{
|
|
"engieer": 10,
|
|
"web/html": 15,
|
|
"k8s-app": 20,
|
|
},
|
|
Employees: map[empName]job{
|
|
"jason": "manager",
|
|
"dan": "clerk",
|
|
},
|
|
}
|
|
|
|
storeTests := []jsonpathTest{
|
|
{"plain", "hello jsonpath", nil, "hello jsonpath", false},
|
|
{"recursive", "{..}", []int{1, 2, 3}, "[1 2 3]", false},
|
|
{"filter", "{[?(@<5)]}", []int{2, 6, 3, 7}, "2 3", false},
|
|
{"quote", `{"{"}`, nil, "{", false},
|
|
{"union", "{[1,3,4]}", []int{0, 1, 2, 3, 4}, "1 3 4", false},
|
|
{"array", "{[0:2]}", []string{"Monday", "Tudesday"}, "Monday Tudesday", false},
|
|
{"variable", "hello {.Name}", storeData, "hello jsonpath", false},
|
|
{"dict/", "{$.Labels.web/html}", storeData, "15", false},
|
|
{"dict/", "{$.Employees.jason}", storeData, "manager", false},
|
|
{"dict/", "{$.Employees.dan}", storeData, "clerk", false},
|
|
{"dict-", "{.Labels.k8s-app}", storeData, "20", false},
|
|
{"nest", "{.Bicycle[*].Color}", storeData, "red green", false},
|
|
{"allarray", "{.Book[*].Author}", storeData, "Nigel Rees Evelyn Waugh Herman Melville", false},
|
|
{"allfileds", "{.Bicycle.*}", storeData, "{red 19.95 true} {green 20.01 false}", false},
|
|
{"recurfileds", "{..Price}", storeData, "8.95 12.99 8.99 19.95 20.01", false},
|
|
{"lastarray", "{.Book[-1:]}", storeData,
|
|
"{Category: fiction, Author: Herman Melville, Title: Moby Dick, Price: 8.99}", false},
|
|
{"recurarray", "{..Book[2]}", storeData,
|
|
"{Category: fiction, Author: Herman Melville, Title: Moby Dick, Price: 8.99}", false},
|
|
{"bool", "{.Bicycle[?(@.IsNew==true)]}", storeData, "{red 19.95 true}", false},
|
|
}
|
|
testJSONPath(storeTests, false, t)
|
|
|
|
missingKeyTests := []jsonpathTest{
|
|
{"nonexistent field", "{.hello}", storeData, "", false},
|
|
}
|
|
testJSONPath(missingKeyTests, true, t)
|
|
|
|
failStoreTests := []jsonpathTest{
|
|
{"invalid identifier", "{hello}", storeData, "unrecognized identifier hello", false},
|
|
{"nonexistent field", "{.hello}", storeData, "hello is not found", false},
|
|
{"invalid array", "{.Labels[0]}", storeData, "map[string]int is not array or slice", false},
|
|
{"invalid filter operator", "{.Book[?(@.Price<>10)]}", storeData, "unrecognized filter operator <>", false},
|
|
{"redundant end", "{range .Labels.*}{@}{end}{end}", storeData, "not in range, nothing to end", false},
|
|
}
|
|
testFailJSONPath(failStoreTests, t)
|
|
}
|
|
|
|
func TestJSONInput(t *testing.T) {
|
|
var pointsJSON = []byte(`[
|
|
{"id": "i1", "x":4, "y":-5},
|
|
{"id": "i2", "x":-2, "y":-5, "z":1},
|
|
{"id": "i3", "x": 8, "y": 3 },
|
|
{"id": "i4", "x": -6, "y": -1 },
|
|
{"id": "i5", "x": 0, "y": 2, "z": 1 },
|
|
{"id": "i6", "x": 1, "y": 4 }
|
|
]`)
|
|
var pointsData interface{}
|
|
err := json.Unmarshal(pointsJSON, &pointsData)
|
|
if err != nil {
|
|
t.Error(err)
|
|
}
|
|
pointsTests := []jsonpathTest{
|
|
{"exists filter", "{[?(@.z)].id}", pointsData, "i2 i5", false},
|
|
{"bracket key", "{[0]['id']}", pointsData, "i1", false},
|
|
}
|
|
testJSONPath(pointsTests, false, t)
|
|
}
|
|
|
|
// TestKubernetes tests some use cases from kubernetes
|
|
func TestKubernetes(t *testing.T) {
|
|
var input = []byte(`{
|
|
"kind": "List",
|
|
"items":[
|
|
{
|
|
"kind":"None",
|
|
"metadata":{
|
|
"name":"127.0.0.1",
|
|
"labels":{
|
|
"kubernetes.io/hostname":"127.0.0.1"
|
|
}
|
|
},
|
|
"status":{
|
|
"capacity":{"cpu":"4"},
|
|
"ready": true,
|
|
"addresses":[{"type": "LegacyHostIP", "address":"127.0.0.1"}]
|
|
}
|
|
},
|
|
{
|
|
"kind":"None",
|
|
"metadata":{
|
|
"name":"127.0.0.2",
|
|
"labels":{
|
|
"kubernetes.io/hostname":"127.0.0.2"
|
|
}
|
|
},
|
|
"status":{
|
|
"capacity":{"cpu":"8"},
|
|
"ready": false,
|
|
"addresses":[
|
|
{"type": "LegacyHostIP", "address":"127.0.0.2"},
|
|
{"type": "another", "address":"127.0.0.3"}
|
|
]
|
|
}
|
|
}
|
|
],
|
|
"users":[
|
|
{
|
|
"name": "myself",
|
|
"user": {}
|
|
},
|
|
{
|
|
"name": "e2e",
|
|
"user": {"username": "admin", "password": "secret"}
|
|
}
|
|
]
|
|
}`)
|
|
var nodesData interface{}
|
|
err := json.Unmarshal(input, &nodesData)
|
|
if err != nil {
|
|
t.Error(err)
|
|
}
|
|
|
|
nodesTests := []jsonpathTest{
|
|
{"range item", `{range .items[*]}{.metadata.name}, {end}{.kind}`, nodesData, "127.0.0.1, 127.0.0.2, List", false},
|
|
{"range item with quote", `{range .items[*]}{.metadata.name}{"\t"}{end}`, nodesData, "127.0.0.1\t127.0.0.2\t", false},
|
|
{"range addresss", `{.items[*].status.addresses[*].address}`, nodesData,
|
|
"127.0.0.1 127.0.0.2 127.0.0.3", false},
|
|
{"double range", `{range .items[*]}{range .status.addresses[*]}{.address}, {end}{end}`, nodesData,
|
|
"127.0.0.1, 127.0.0.2, 127.0.0.3, ", false},
|
|
{"item name", `{.items[*].metadata.name}`, nodesData, "127.0.0.1 127.0.0.2", false},
|
|
{"union nodes capacity", `{.items[*]['metadata.name', 'status.capacity']}`, nodesData,
|
|
"127.0.0.1 127.0.0.2 map[cpu:4] map[cpu:8]", false},
|
|
{"range nodes capacity", `{range .items[*]}[{.metadata.name}, {.status.capacity}] {end}`, nodesData,
|
|
"[127.0.0.1, map[cpu:4]] [127.0.0.2, map[cpu:8]] ", false},
|
|
{"user password", `{.users[?(@.name=="e2e")].user.password}`, &nodesData, "secret", false},
|
|
{"hostname", `{.items[0].metadata.labels.kubernetes\.io/hostname}`, &nodesData, "127.0.0.1", false},
|
|
{"hostname filter", `{.items[?(@.metadata.labels.kubernetes\.io/hostname=="127.0.0.1")].kind}`, &nodesData, "None", false},
|
|
{"bool item", `{.items[?(@..ready==true)].metadata.name}`, &nodesData, "127.0.0.1", false},
|
|
}
|
|
testJSONPath(nodesTests, false, t)
|
|
|
|
randomPrintOrderTests := []jsonpathTest{
|
|
{"recursive name", "{..name}", nodesData, `127.0.0.1 127.0.0.2 myself e2e`, false},
|
|
}
|
|
testJSONPathSortOutput(randomPrintOrderTests, t)
|
|
}
|
|
|
|
func TestFilterPartialMatchesSometimesMissingAnnotations(t *testing.T) {
|
|
// for https://issues.k8s.io/45546
|
|
var input = []byte(`{
|
|
"kind": "List",
|
|
"items": [
|
|
{
|
|
"kind": "Pod",
|
|
"metadata": {
|
|
"name": "pod1",
|
|
"annotations": {
|
|
"color": "blue"
|
|
}
|
|
}
|
|
},
|
|
{
|
|
"kind": "Pod",
|
|
"metadata": {
|
|
"name": "pod2"
|
|
}
|
|
},
|
|
{
|
|
"kind": "Pod",
|
|
"metadata": {
|
|
"name": "pod3",
|
|
"annotations": {
|
|
"color": "green"
|
|
}
|
|
}
|
|
},
|
|
{
|
|
"kind": "Pod",
|
|
"metadata": {
|
|
"name": "pod4",
|
|
"annotations": {
|
|
"color": "blue"
|
|
}
|
|
}
|
|
}
|
|
]
|
|
}`)
|
|
var data interface{}
|
|
err := json.Unmarshal(input, &data)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
testJSONPath(
|
|
[]jsonpathTest{
|
|
{
|
|
"filter, should only match a subset, some items don't have annotations, tolerate missing items",
|
|
`{.items[?(@.metadata.annotations.color=="blue")].metadata.name}`,
|
|
data,
|
|
"pod1 pod4",
|
|
false, // expect no error
|
|
},
|
|
},
|
|
true, // allow missing keys
|
|
t,
|
|
)
|
|
|
|
testJSONPath(
|
|
[]jsonpathTest{
|
|
{
|
|
"filter, should only match a subset, some items don't have annotations, error on missing items",
|
|
`{.items[?(@.metadata.annotations.color=="blue")].metadata.name}`,
|
|
data,
|
|
"",
|
|
true, // expect an error
|
|
},
|
|
},
|
|
false, // don't allow missing keys
|
|
t,
|
|
)
|
|
}
|