Adding upstream version 0.2.2.
Signed-off-by: Daniel Baumann <daniel@debian.org>
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14 changed files with 837 additions and 0 deletions
285
json_test.go
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285
json_test.go
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package deepmerge_test
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import (
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"encoding/json"
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"errors"
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"testing"
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"github.com/TwiN/deepmerge"
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)
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func TestJSON(t *testing.T) {
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scenarios := []struct {
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name string
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config deepmerge.Config
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dst string
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src string
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expected string
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expectedErr error
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}{
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{
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name: "invalid-dst",
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dst: ``,
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src: `{}`,
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expected: `{}`,
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expectedErr: errors.New("unexpected end of JSON input"),
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},
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{
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name: "invalid-src",
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dst: `{}`,
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src: ``,
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expected: `{}`,
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expectedErr: errors.New("unexpected end of JSON input"),
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},
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{
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name: "simple-endpoint-merge",
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dst: `{
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"endpoints": [
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{
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"name": "one",
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"url": "https://example.com",
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"client": {
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"timeout": "5s"
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},
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"conditions": [
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"[CONNECTED] == true",
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"[STATUS] == 200"
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],
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"alerts": [
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{
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"type": "slack",
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"failure-threshold": 5
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}
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]
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},
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{
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"name": "two",
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"url": "https://example.org",
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"conditions": [
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"len([BODY]) > 0"
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]
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}
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]
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}`,
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src: `{
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"endpoints": [
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{
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"name": "three",
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"url": "https://twin.sh/health",
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"conditions": [
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"[STATUS] == 200",
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"[BODY].status == UP"
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]
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}
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]
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}`,
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expected: `{
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"endpoints": [
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{
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"name": "one",
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"url": "https://example.com",
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"client": {
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"timeout": "5s"
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},
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"conditions": [
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"[CONNECTED] == true",
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"[STATUS] == 200"
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],
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"alerts": [
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{
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"type": "slack",
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"failure-threshold": 5
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}
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]
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},
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{
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"name": "two",
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"url": "https://example.org",
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"conditions": [
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"len([BODY]) > 0"
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]
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},
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{
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"name": "three",
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"url": "https://twin.sh/health",
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"conditions": [
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"[STATUS] == 200",
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"[BODY].status == UP"
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]
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}
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]
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}`,
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},
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{
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name: "deep-merge-with-map-slice-and-primitive",
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dst: `{
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"metrics": true,
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"alerting": {
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"slack": {
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"webhook-url": "https://hooks.slack.com/services/xxx/yyy/zzz",
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"default-alert": {
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"description": "health check failed",
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"send-on-resolved": true,
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"failure-threshold": 5,
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"success-threshold": 5
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}
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}
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},
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"endpoints": [
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{
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"name": "example",
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"url": "https://example.org",
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"interval": "5s"
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}
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]
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}`,
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src: `{
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"debug": true,
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"alerting": {
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"discord": {
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"webhook-url": "https://discord.com/api/webhooks/xxx/yyy"
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}
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},
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"endpoints": [
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{
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"name": "frontend",
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"url": "https://example.com"
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}
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]
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}`,
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expected: `{
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"metrics": true,
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"debug": true,
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"alerting": {
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"discord": {
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"webhook-url": "https://discord.com/api/webhooks/xxx/yyy"
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},
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"slack": {
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"webhook-url": "https://hooks.slack.com/services/xxx/yyy/zzz",
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"default-alert": {
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"description": "health check failed",
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"send-on-resolved": true,
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"failure-threshold": 5,
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"success-threshold": 5
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}
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}
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},
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"endpoints": [
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{
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"interval": "5s",
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"name": "example",
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"url": "https://example.org"
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},
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{
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"name": "frontend",
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"url": "https://example.com"
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}
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]
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}`,
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},
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{ // only maps and slices can be merged. If there are duplicate keys that have a primitive value, then that's an error.
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name: "duplicate-key-with-primitive-value",
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config: deepmerge.Config{PreventMultipleDefinitionsOfKeysWithPrimitiveValue: true}, // NOTE: true is the default
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dst: `{"metrics": true}`,
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src: `{"metrics": false}`,
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expectedErr: deepmerge.ErrKeyWithPrimitiveValueDefinedMoreThanOnce,
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},
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{
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name: "duplicate-key-with-primitive-value-with-PreventMultipleDefinitionsOfKeysWithPrimitiveValue-set-to-false",
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config: deepmerge.Config{PreventMultipleDefinitionsOfKeysWithPrimitiveValue: false},
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dst: `{"metrics": true, "debug": true}`,
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src: `{"metrics": false}`,
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expected: `{"metrics": false, "debug": true}`,
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},
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{
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name: "readme-example",
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dst: `{
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"debug": true,
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"client": {
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"insecure": true
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},
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"users": [
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{
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"id": 1,
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"firstName": "John",
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"lastName": "Doe"
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},
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{
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"id": 2,
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"firstName": "Jane",
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"lastName": "Doe"
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}
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]
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}`,
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src: `{
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"client": {
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"timeout": "5s"
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},
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"users": [
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{
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"id": 3,
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"firstName": "Bob",
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"lastName": "Smith"
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}
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]
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}`,
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expected: `{
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"client": {
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"insecure": true,
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"timeout": "5s"
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},
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"debug": true,
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"users": [
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{
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"firstName": "John",
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"id": 1,
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"lastName": "Doe"
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},
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{
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"firstName": "Jane",
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"id": 2,
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"lastName": "Doe"
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},
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{
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"firstName": "Bob",
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"id": 3,
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"lastName": "Smith"
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}
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]
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}`,
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},
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}
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for _, scenario := range scenarios {
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t.Run(scenario.name, func(t *testing.T) {
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output, err := deepmerge.JSON([]byte(scenario.dst), []byte(scenario.src), scenario.config)
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if !errors.Is(err, scenario.expectedErr) && !(scenario.expectedErr != nil && err.Error() == scenario.expectedErr.Error()) {
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t.Errorf("[%s] expected error %v, got %v", scenario.name, scenario.expectedErr, err)
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}
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// Just so we don't have to worry about the formatting, we'll unmarshal the output and marshal it again.
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expectedAsMap, outputAsMap := make(map[string]interface{}), make(map[string]interface{})
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if len(output) > 0 {
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if err := json.Unmarshal(output, &outputAsMap); err != nil {
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t.Errorf("[%s] failed to unmarshal output: %v", scenario.name, err)
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}
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}
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if len(scenario.expected) > 0 {
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if err := json.Unmarshal([]byte(scenario.expected), &expectedAsMap); err != nil {
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t.Errorf("[%s] failed to unmarshal expected: %v", scenario.name, err)
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}
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}
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formattedOutput, err := json.Marshal(outputAsMap)
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if err != nil {
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t.Errorf("[%s] should've been able to re-marshal output: %v", scenario.name, err)
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}
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formattedExpected, err := json.Marshal(expectedAsMap)
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if err != nil {
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t.Errorf("[%s] should've been able to re-marshal expected: %v", scenario.name, err)
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}
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// Compare what we got vs what we expected
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if string(formattedOutput) != string(formattedExpected) {
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t.Errorf("[%s] expected:\n%s\n\ngot:\n%s", scenario.name, string(formattedExpected), string(formattedOutput))
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}
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})
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}
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}
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