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jsondiff_test.go
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jsondiff_test.go
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package json_diff
import (
"fmt"
"github.com/520MianXiangDuiXiang520/json-diff/decode"
"io/ioutil"
"log"
"testing"
)
func ExampleAsDiffs() {
json1 := `{
"A": 1,
"B": [1, 2, 3, {"1": 2}],
"C": {
"CA": 1
}
}`
json2 := `{
"A": 2,
"B": [{"1": 2}, 1, {"1": 2}, 4],
"C": {
"CA": {"CAA": 1}
}
}`
res, err := AsDiffs([]byte(json1), []byte(json2), UseMoveOption, UseCopyOption, UseFullRemoveOption)
if err != nil {
log.Fatalln(err)
}
fmt.Println(string(res))
}
func ExampleMergeDiff() {
json2 := `{
"A": 1,
"B": [1, 2, 3, {"BA": 1}],
"C": {
"CA": 1,
"CB": 2
}
}`
diffs := `[
{"op": "move", "from": "/A", "path": "/D"},
{"op": "move", "from": "/B/0", "path": "/B/1"},
{"op": "move", "from": "/B/2", "path": "/C/CB"}
]`
res, _ := MergeDiff([]byte(json2), []byte(diffs))
fmt.Println(res)
}
func Test_merge_smoke(t *testing.T) {
type args struct {
srcNode *decode.JsonNode
diffNode *decode.JsonNode
}
type testCase struct {
name string
args args
want *decode.JsonNode
}
fileName := "./test_data/mergeSmoke.json"
input, err := ioutil.ReadFile(fileName)
if err != nil {
t.Error("fail to open the ", fileName)
}
caseNode, _ := decode.Unmarshal(input)
cases := caseNode.ChildrenMap["cases"]
testCases := make([]testCase, len(cases.Children))
for i, tt := range cases.Children {
name := tt.ChildrenMap["name"].Value.(string)
srcNode := tt.ChildrenMap["src"]
diffNode := tt.ChildrenMap["diff"]
wantNode := tt.ChildrenMap["hope"]
testCases[i] = testCase{
name: name,
args: args{
srcNode: srcNode,
diffNode: diffNode,
},
want: wantNode,
}
}
for _, cs := range testCases {
t.Run(cs.name, func(t *testing.T) {
src := new(decode.JsonNode)
src, err := DeepCopy(cs.args.srcNode)
if err != nil {
t.Errorf("fail to deepcopy src object")
}
res, err := MergeDiffNode(src, cs.args.diffNode)
if err != nil {
t.Errorf("fail to do merge(), get error: %v", err)
}
if !res.Equal(cs.want) {
get, _ := Marshal(src)
want, _ := Marshal(cs.want)
t.Errorf("the value of after merge(%v) are not equal want(%v)", string(get), string(want))
}
})
}
}
func m(n *decode.JsonNode) []byte {
r, _ := Marshal(n)
return r
}
func getOptions(n *decode.JsonNode) []JsonDiffOption {
res := make([]JsonDiffOption, len(n.Children))
for i, v := range n.Children {
res[i] = JsonDiffOption(v.Value.(float64))
}
return res
}
func TestGetDiff(t *testing.T) {
type args struct {
source []byte
patch []byte
options []JsonDiffOption
}
fileName := "./test_data/getDiffTest.json"
input, err := ioutil.ReadFile(fileName)
if err != nil {
t.Error("fail to open the ", fileName)
}
caseNode, _ := decode.Unmarshal(input)
cases := caseNode.ChildrenMap["cases"].Children
type ts struct {
name string
args args
want *decode.JsonNode
wantErr bool
}
tss := make([]ts, len(cases))
for i, c := range cases {
name := c.ChildrenMap["name"].Value.(string)
source := m(c.ChildrenMap["src"])
patch := m(c.ChildrenMap["patch"])
options := getOptions(c.ChildrenMap["options"])
want := c.ChildrenMap["want"]
wantErr := c.ChildrenMap["want-error"].Value.(bool)
tss[i] = ts{
name: name,
args: args{
source: source,
patch: patch,
options: options,
},
want: want,
wantErr: wantErr,
}
}
for _, tt := range tss {
t.Run(tt.name, func(t *testing.T) {
src, _ := decode.Unmarshal(tt.args.source)
pat, _ := decode.Unmarshal(tt.args.patch)
diffs := GetDiffNode(src, pat, tt.args.options...)
if !eq(diffs, tt.want) {
got, _ := Marshal(diffs)
want, _ := Marshal(tt.want)
t.Errorf("getDiff() got %s\n, but want %s", string(got), string(want))
}
})
}
}
func eq(a, b *decode.JsonNode) bool {
aList := a.Children
bList := b.Children
for i := 0; i < len(aList); i++ {
j := 0
for ; j < len(bList); j++ {
if aList[i].Equal(bList[j]) {
break
}
}
if j == len(bList) {
return false
}
}
return true
}
func TestAsDiffsIssue5(t *testing.T) {
json1 := `{"A": 1, "B": [1, 2, 3], "C": [1, 2]}`
json2 := `{"A": 1, "B": [1, 3], "C": [2, 1], "D": 6}`
diffs, err := AsDiffs([]byte(json1), []byte(json2), UseMoveOption, UseCopyOption, UseFullRemoveOption)
if err != nil {
t.Error("got an error", err)
}
fmt.Println(string(diffs))
}