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feat: Add request and response transformer wasm plugin (#549)
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WeixinX
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328
plugins/wasm-go/extensions/transformer/utils_test.go
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328
plugins/wasm-go/extensions/transformer/utils_test.go
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// Copyright (c) 2022 Alibaba Group Holding Ltd.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package main
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import (
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"fmt"
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"testing"
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"github.com/stretchr/testify/require"
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)
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func TestParseQueryByPath(t *testing.T) {
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cases := []struct {
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name string
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path string
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expected map[string][]string
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errMsg string
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}{
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{
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name: "common",
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path: "/get?k1=v1&k2=v2&k3=v3",
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expected: map[string][]string{
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"k1": {"v1"},
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"k2": {"v2"},
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"k3": {"v3"},
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},
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},
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{
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name: "empty query",
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path: "www.example.com/get",
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expected: map[string][]string{},
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},
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{
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name: "multiple values",
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path: "www.example.com/get?k1=v11&k1=v12&k2=v2&k1=v13",
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expected: map[string][]string{
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"k1": {"v11", "v12", "v13"},
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"k2": {"v2"},
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},
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},
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{
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name: "encoded url",
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path: "/get%20with%3Freserved%20characters?key=Hello+World",
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expected: map[string][]string{
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"key": {"Hello World"},
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},
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},
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}
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for _, c := range cases {
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t.Run(c.name, func(t *testing.T) {
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actual, err := parseQueryByPath(c.path)
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if c.errMsg != "" {
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require.EqualError(t, err, c.errMsg)
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return
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}
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require.NoError(t, err)
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require.Equal(t, c.expected, actual)
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})
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}
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}
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func TestConstructPath(t *testing.T) {
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cases := []struct {
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name string
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path string
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qs map[string][]string
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expected string
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errMsg string
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}{
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{
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name: "common",
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path: "/get",
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qs: map[string][]string{
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"k1": {"v1"},
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"k2": {"v2"},
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"k3": {"v3"},
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},
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expected: "/get?k1=v1&k2=v2&k3=v3",
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},
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{
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name: "empty query",
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path: "www.example.com/get",
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qs: map[string][]string{},
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expected: "www.example.com/get",
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},
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{
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name: "encoded url",
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path: "/get with?",
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qs: map[string][]string{
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"key": {"Hello World"},
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},
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expected: "/get%20with?key=Hello+World",
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},
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}
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for _, c := range cases {
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t.Run(c.name, func(t *testing.T) {
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actual, err := constructPath(c.path, c.qs)
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if c.errMsg != "" {
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require.EqualError(t, err, c.errMsg)
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return
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}
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require.NoError(t, err)
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require.Equal(t, c.expected, actual)
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})
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}
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}
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func TestParseBody(t *testing.T) {
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cases := []struct {
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name string
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mediaType string
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body []byte
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expected interface{}
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errMsg string
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}{
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{
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name: "application/json",
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mediaType: "application/json",
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body: []byte(`{
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"k1": "v2",
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"k2": 20,
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"k3": true,
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"k4": [1, 2, 3],
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"k5": {
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"k6": "v6"
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}
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}`),
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expected: map[string]interface{}{"body": []byte(`{
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"k1": "v2",
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"k2": 20,
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"k3": true,
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"k4": [1, 2, 3],
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"k5": {
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"k6": "v6"
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}
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}`)},
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},
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{
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name: "application/x-www-form-urlencoded",
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mediaType: "application/x-www-form-urlencoded",
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body: []byte("k1=v11&k1=v12&k2=v2&k3=v3"),
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expected: map[string][]string{
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"k1": {"v11", "v12"},
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"k2": {"v2"},
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"k3": {"v3"},
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},
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},
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{
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name: "multipart/form-data",
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mediaType: "multipart/form-data; boundary=--------------------------962785348548682888818907",
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body: []byte("----------------------------962785348548682888818907\r\nContent-Disposition: form-data; name=\"k1\"\r\n\r\nv11\r\n----------------------------962785348548682888818907\r\nContent-Disposition: form-data; name=\"k1\"\r\n\r\nv12\r\n----------------------------962785348548682888818907\r\nContent-Disposition: form-data; name=\"k2\"\r\n\r\nv2\r\n----------------------------962785348548682888818907--\r\n"),
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expected: map[string][]string{
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"k1": {"v11", "v12"},
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"k2": {"v2"},
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},
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},
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{
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name: "unsupported content type",
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mediaType: "plain/text",
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body: []byte(`qwe`),
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errMsg: fmt.Sprintf(errContentTypeFmt, "plain/text"),
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},
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{
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name: "empty body",
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mediaType: "application/json",
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body: []byte(``),
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errMsg: errEmptyBody.Error(),
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},
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}
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for _, c := range cases {
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t.Run(c.name, func(t *testing.T) {
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actual, err := parseBody(c.mediaType, c.body)
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if c.errMsg != "" {
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require.EqualError(t, err, c.errMsg)
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return
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}
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require.NoError(t, err)
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require.Equal(t, c.expected, actual)
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})
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}
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}
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func TestConstructBody(t *testing.T) {
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cases := []struct {
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name string
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mediaType string
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body interface{}
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expected []byte
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errMsg string
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}{
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{
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name: "application/json",
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mediaType: "application/json",
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body: map[string]interface{}{"body": []byte(`{
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"k1": {
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"k2": [1, 2, 3]
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}
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}
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`)},
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expected: []byte(`{
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"k1": {
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"k2": [1, 2, 3]
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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: "application/x-www-form-urlencoded",
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mediaType: "application/x-www-form-urlencoded",
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body: map[string][]string{
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"k1": {"v11", "v12"},
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},
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expected: []byte("k1=v11&k1=v12"),
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},
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{
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name: "multipart/form-data",
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mediaType: "multipart/form-data; boundary=--------------------------962785348548682888818907",
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body: map[string][]string{
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"k1": {"v11", "v12"},
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},
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expected: []byte("----------------------------962785348548682888818907\r\nContent-Disposition: form-data; name=\"k1\"\r\n\r\nv11\r\n----------------------------962785348548682888818907\r\nContent-Disposition: form-data; name=\"k1\"\r\n\r\nv12\r\n----------------------------962785348548682888818907--\r\n"),
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},
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{
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name: "unsupported media type",
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mediaType: "plain/text",
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body: []byte(`qwe`),
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errMsg: fmt.Sprintf(errContentTypeFmt, "plain/text"),
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},
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{
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name: "empty body",
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mediaType: "application/json",
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body: map[string]interface{}{"body": []byte{}},
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expected: []byte{},
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},
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}
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for _, c := range cases {
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t.Run(c.name, func(t *testing.T) {
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actual, err := constructBody(c.mediaType, c.body)
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if c.errMsg != "" {
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require.EqualError(t, err, c.errMsg)
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return
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}
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require.NoError(t, err)
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require.Equal(t, c.expected, actual)
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})
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}
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}
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func TestConvertByJsonType(t *testing.T) {
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cases := []struct {
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name string
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valueTyp string
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value string
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expected interface{}
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errMsg string
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}{
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{
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name: "object",
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valueTyp: "object",
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value: "{\"array\": [1, 2, 3], \"object\": { \"first\": \"hello\", \"second\": \"world\" } }",
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expected: map[string]interface{}{
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"array": []interface{}{float64(1), float64(2), float64(3)},
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"object": map[string]interface{}{
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"first": "hello",
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"second": "world",
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},
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},
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},
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{
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name: "boolean",
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valueTyp: "boolean",
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value: "true",
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expected: true,
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},
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{
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name: "boolean: failed",
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valueTyp: "boolean",
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value: "null",
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errMsg: "strconv.ParseBool: parsing \"null\": invalid syntax",
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},
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{
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name: "number",
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valueTyp: "number",
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value: "10",
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expected: float64(10),
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},
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{
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name: "string",
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valueTyp: "string",
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value: "hello world",
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expected: "hello world",
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},
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{
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name: "unsupported type",
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valueTyp: "integer",
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value: "10",
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expected: "10", // default string
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},
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}
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for _, c := range cases {
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t.Run(c.name, func(t *testing.T) {
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actual, err := convertByJsonType(c.valueTyp, c.value)
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if c.errMsg != "" {
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require.EqualError(t, err, c.errMsg)
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return
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}
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require.NoError(t, err)
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require.Equal(t, c.expected, actual)
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})
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}
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}
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