mirror of
https://github.com/rclone/rclone.git
synced 2024-12-12 10:12:41 +01:00
538 lines
14 KiB
Go
538 lines
14 KiB
Go
// +build codegen
|
|
|
|
package main
|
|
|
|
import (
|
|
"bytes"
|
|
"encoding/json"
|
|
"fmt"
|
|
"net/url"
|
|
"os"
|
|
"os/exec"
|
|
"reflect"
|
|
"regexp"
|
|
"sort"
|
|
"strconv"
|
|
"strings"
|
|
"text/template"
|
|
|
|
"github.com/aws/aws-sdk-go/private/model/api"
|
|
"github.com/aws/aws-sdk-go/private/util"
|
|
)
|
|
|
|
// TestSuiteTypeInput input test
|
|
// TestSuiteTypeInput output test
|
|
const (
|
|
TestSuiteTypeInput = iota
|
|
TestSuiteTypeOutput
|
|
)
|
|
|
|
type testSuite struct {
|
|
*api.API
|
|
Description string
|
|
Cases []testCase
|
|
Type uint
|
|
title string
|
|
}
|
|
|
|
type testCase struct {
|
|
TestSuite *testSuite
|
|
Given *api.Operation
|
|
Params interface{} `json:",omitempty"`
|
|
Data interface{} `json:"result,omitempty"`
|
|
InputTest testExpectation `json:"serialized"`
|
|
OutputTest testExpectation `json:"response"`
|
|
}
|
|
|
|
type testExpectation struct {
|
|
Body string
|
|
URI string
|
|
Headers map[string]string
|
|
JSONValues map[string]string
|
|
StatusCode uint `json:"status_code"`
|
|
}
|
|
|
|
const preamble = `
|
|
var _ bytes.Buffer // always import bytes
|
|
var _ http.Request
|
|
var _ json.Marshaler
|
|
var _ time.Time
|
|
var _ xmlutil.XMLNode
|
|
var _ xml.Attr
|
|
var _ = ioutil.Discard
|
|
var _ = util.Trim("")
|
|
var _ = url.Values{}
|
|
var _ = io.EOF
|
|
var _ = aws.String
|
|
var _ = fmt.Println
|
|
var _ = reflect.Value{}
|
|
|
|
func init() {
|
|
protocol.RandReader = &awstesting.ZeroReader{}
|
|
}
|
|
`
|
|
|
|
var reStripSpace = regexp.MustCompile(`\s(\w)`)
|
|
|
|
var reImportRemoval = regexp.MustCompile(`(?s:import \((.+?)\))`)
|
|
|
|
func removeImports(code string) string {
|
|
return reImportRemoval.ReplaceAllString(code, "")
|
|
}
|
|
|
|
var extraImports = []string{
|
|
"bytes",
|
|
"encoding/json",
|
|
"encoding/xml",
|
|
"fmt",
|
|
"io",
|
|
"io/ioutil",
|
|
"net/http",
|
|
"testing",
|
|
"time",
|
|
"reflect",
|
|
"net/url",
|
|
"",
|
|
"github.com/aws/aws-sdk-go/awstesting",
|
|
"github.com/aws/aws-sdk-go/awstesting/unit",
|
|
"github.com/aws/aws-sdk-go/private/protocol",
|
|
"github.com/aws/aws-sdk-go/private/protocol/xml/xmlutil",
|
|
"github.com/aws/aws-sdk-go/private/util",
|
|
}
|
|
|
|
func addImports(code string) string {
|
|
importNames := make([]string, len(extraImports))
|
|
for i, n := range extraImports {
|
|
if n != "" {
|
|
importNames[i] = fmt.Sprintf("%q", n)
|
|
}
|
|
}
|
|
|
|
str := reImportRemoval.ReplaceAllString(code, "import (\n"+strings.Join(importNames, "\n")+"$1\n)")
|
|
return str
|
|
}
|
|
|
|
func (t *testSuite) TestSuite() string {
|
|
var buf bytes.Buffer
|
|
|
|
t.title = reStripSpace.ReplaceAllStringFunc(t.Description, func(x string) string {
|
|
return strings.ToUpper(x[1:])
|
|
})
|
|
t.title = regexp.MustCompile(`\W`).ReplaceAllString(t.title, "")
|
|
|
|
for idx, c := range t.Cases {
|
|
c.TestSuite = t
|
|
buf.WriteString(c.TestCase(idx) + "\n")
|
|
}
|
|
return buf.String()
|
|
}
|
|
|
|
var tplInputTestCase = template.Must(template.New("inputcase").Parse(`
|
|
func Test{{ .OpName }}(t *testing.T) {
|
|
svc := New{{ .TestCase.TestSuite.API.StructName }}(unit.Session, &aws.Config{Endpoint: aws.String("https://test")})
|
|
{{ if ne .ParamsString "" }}input := {{ .ParamsString }}
|
|
{{ range $k, $v := .JSONValues -}}
|
|
input.{{ $k }} = {{ $v }}
|
|
{{ end -}}
|
|
req, _ := svc.{{ .TestCase.Given.ExportedName }}Request(input){{ else }}req, _ := svc.{{ .TestCase.Given.ExportedName }}Request(nil){{ end }}
|
|
r := req.HTTPRequest
|
|
|
|
// build request
|
|
{{ .TestCase.TestSuite.API.ProtocolPackage }}.Build(req)
|
|
if req.Error != nil {
|
|
t.Errorf("expect no error, got %v", req.Error)
|
|
}
|
|
|
|
{{ if ne .TestCase.InputTest.Body "" }}// assert body
|
|
if r.Body == nil {
|
|
t.Errorf("expect body not to be nil")
|
|
}
|
|
{{ .BodyAssertions }}{{ end }}
|
|
|
|
{{ if ne .TestCase.InputTest.URI "" }}// assert URL
|
|
awstesting.AssertURL(t, "https://test{{ .TestCase.InputTest.URI }}", r.URL.String()){{ end }}
|
|
|
|
// assert headers
|
|
{{ range $k, $v := .TestCase.InputTest.Headers -}}
|
|
if e, a := "{{ $v }}", r.Header.Get("{{ $k }}"); e != a {
|
|
t.Errorf("expect %v to be %v", e, a)
|
|
}
|
|
{{ end }}
|
|
}
|
|
`))
|
|
|
|
type tplInputTestCaseData struct {
|
|
TestCase *testCase
|
|
JSONValues map[string]string
|
|
OpName, ParamsString string
|
|
}
|
|
|
|
func (t tplInputTestCaseData) BodyAssertions() string {
|
|
code := &bytes.Buffer{}
|
|
protocol := t.TestCase.TestSuite.API.Metadata.Protocol
|
|
|
|
// Extract the body bytes
|
|
switch protocol {
|
|
case "rest-xml":
|
|
fmt.Fprintln(code, "body := util.SortXML(r.Body)")
|
|
default:
|
|
fmt.Fprintln(code, "body, _ := ioutil.ReadAll(r.Body)")
|
|
}
|
|
|
|
// Generate the body verification code
|
|
expectedBody := util.Trim(t.TestCase.InputTest.Body)
|
|
switch protocol {
|
|
case "ec2", "query":
|
|
fmt.Fprintf(code, "awstesting.AssertQuery(t, `%s`, util.Trim(string(body)))",
|
|
expectedBody)
|
|
case "rest-xml":
|
|
if strings.HasPrefix(expectedBody, "<") {
|
|
fmt.Fprintf(code, "awstesting.AssertXML(t, `%s`, util.Trim(string(body)), %s{})",
|
|
expectedBody, t.TestCase.Given.InputRef.ShapeName)
|
|
} else {
|
|
code.WriteString(fmtAssertEqual(fmt.Sprintf("%q", expectedBody), "util.Trim(string(body))"))
|
|
}
|
|
case "json", "jsonrpc", "rest-json":
|
|
if strings.HasPrefix(expectedBody, "{") {
|
|
fmt.Fprintf(code, "awstesting.AssertJSON(t, `%s`, util.Trim(string(body)))",
|
|
expectedBody)
|
|
} else {
|
|
code.WriteString(fmtAssertEqual(fmt.Sprintf("%q", expectedBody), "util.Trim(string(body))"))
|
|
}
|
|
default:
|
|
code.WriteString(fmtAssertEqual(expectedBody, "util.Trim(string(body))"))
|
|
}
|
|
|
|
return code.String()
|
|
}
|
|
|
|
func fmtAssertEqual(e, a string) string {
|
|
const format = `if e, a := %s, %s; e != a {
|
|
t.Errorf("expect %%v, got %%v", e, a)
|
|
}
|
|
`
|
|
|
|
return fmt.Sprintf(format, e, a)
|
|
}
|
|
|
|
func fmtAssertNil(v string) string {
|
|
const format = `if e := %s; e != nil {
|
|
t.Errorf("expect nil, got %%v", e)
|
|
}
|
|
`
|
|
|
|
return fmt.Sprintf(format, v)
|
|
}
|
|
|
|
var tplOutputTestCase = template.Must(template.New("outputcase").Parse(`
|
|
func Test{{ .OpName }}(t *testing.T) {
|
|
svc := New{{ .TestCase.TestSuite.API.StructName }}(unit.Session, &aws.Config{Endpoint: aws.String("https://test")})
|
|
|
|
buf := bytes.NewReader([]byte({{ .Body }}))
|
|
req, out := svc.{{ .TestCase.Given.ExportedName }}Request(nil)
|
|
req.HTTPResponse = &http.Response{StatusCode: 200, Body: ioutil.NopCloser(buf), Header: http.Header{}}
|
|
|
|
// set headers
|
|
{{ range $k, $v := .TestCase.OutputTest.Headers }}req.HTTPResponse.Header.Set("{{ $k }}", "{{ $v }}")
|
|
{{ end }}
|
|
|
|
// unmarshal response
|
|
{{ .TestCase.TestSuite.API.ProtocolPackage }}.UnmarshalMeta(req)
|
|
{{ .TestCase.TestSuite.API.ProtocolPackage }}.Unmarshal(req)
|
|
if req.Error != nil {
|
|
t.Errorf("expect not error, got %v", req.Error)
|
|
}
|
|
|
|
// assert response
|
|
if out == nil {
|
|
t.Errorf("expect not to be nil")
|
|
}
|
|
{{ .Assertions }}
|
|
}
|
|
`))
|
|
|
|
type tplOutputTestCaseData struct {
|
|
TestCase *testCase
|
|
Body, OpName, Assertions string
|
|
}
|
|
|
|
func (i *testCase) TestCase(idx int) string {
|
|
var buf bytes.Buffer
|
|
|
|
opName := i.TestSuite.API.StructName() + i.TestSuite.title + "Case" + strconv.Itoa(idx+1)
|
|
|
|
if i.TestSuite.Type == TestSuiteTypeInput { // input test
|
|
// query test should sort body as form encoded values
|
|
switch i.TestSuite.API.Metadata.Protocol {
|
|
case "query", "ec2":
|
|
m, _ := url.ParseQuery(i.InputTest.Body)
|
|
i.InputTest.Body = m.Encode()
|
|
case "rest-xml":
|
|
i.InputTest.Body = util.SortXML(bytes.NewReader([]byte(i.InputTest.Body)))
|
|
case "json", "rest-json":
|
|
i.InputTest.Body = strings.Replace(i.InputTest.Body, " ", "", -1)
|
|
}
|
|
|
|
jsonValues := buildJSONValues(i.Given.InputRef.Shape)
|
|
var params interface{}
|
|
if m, ok := i.Params.(map[string]interface{}); ok {
|
|
paramsMap := map[string]interface{}{}
|
|
for k, v := range m {
|
|
if _, ok := jsonValues[k]; !ok {
|
|
paramsMap[k] = v
|
|
} else {
|
|
if i.InputTest.JSONValues == nil {
|
|
i.InputTest.JSONValues = map[string]string{}
|
|
}
|
|
i.InputTest.JSONValues[k] = serializeJSONValue(v.(map[string]interface{}))
|
|
}
|
|
}
|
|
params = paramsMap
|
|
} else {
|
|
params = i.Params
|
|
}
|
|
input := tplInputTestCaseData{
|
|
TestCase: i,
|
|
OpName: strings.ToUpper(opName[0:1]) + opName[1:],
|
|
ParamsString: api.ParamsStructFromJSON(params, i.Given.InputRef.Shape, false),
|
|
JSONValues: i.InputTest.JSONValues,
|
|
}
|
|
|
|
if err := tplInputTestCase.Execute(&buf, input); err != nil {
|
|
panic(err)
|
|
}
|
|
} else if i.TestSuite.Type == TestSuiteTypeOutput {
|
|
output := tplOutputTestCaseData{
|
|
TestCase: i,
|
|
Body: fmt.Sprintf("%q", i.OutputTest.Body),
|
|
OpName: strings.ToUpper(opName[0:1]) + opName[1:],
|
|
Assertions: GenerateAssertions(i.Data, i.Given.OutputRef.Shape, "out"),
|
|
}
|
|
|
|
if err := tplOutputTestCase.Execute(&buf, output); err != nil {
|
|
panic(err)
|
|
}
|
|
}
|
|
|
|
return buf.String()
|
|
}
|
|
|
|
func serializeJSONValue(m map[string]interface{}) string {
|
|
str := "aws.JSONValue"
|
|
str += walkMap(m)
|
|
return str
|
|
}
|
|
|
|
func walkMap(m map[string]interface{}) string {
|
|
str := "{"
|
|
for k, v := range m {
|
|
str += fmt.Sprintf("%q:", k)
|
|
switch v.(type) {
|
|
case bool:
|
|
str += fmt.Sprintf("%b,\n", v.(bool))
|
|
case string:
|
|
str += fmt.Sprintf("%q,\n", v.(string))
|
|
case int:
|
|
str += fmt.Sprintf("%d,\n", v.(int))
|
|
case float64:
|
|
str += fmt.Sprintf("%f,\n", v.(float64))
|
|
case map[string]interface{}:
|
|
str += walkMap(v.(map[string]interface{}))
|
|
}
|
|
}
|
|
str += "}"
|
|
return str
|
|
}
|
|
|
|
func buildJSONValues(shape *api.Shape) map[string]struct{} {
|
|
keys := map[string]struct{}{}
|
|
for key, field := range shape.MemberRefs {
|
|
if field.JSONValue {
|
|
keys[key] = struct{}{}
|
|
}
|
|
}
|
|
return keys
|
|
}
|
|
|
|
// generateTestSuite generates a protocol test suite for a given configuration
|
|
// JSON protocol test file.
|
|
func generateTestSuite(filename string) string {
|
|
inout := "Input"
|
|
if strings.Contains(filename, "output/") {
|
|
inout = "Output"
|
|
}
|
|
|
|
var suites []testSuite
|
|
f, err := os.Open(filename)
|
|
if err != nil {
|
|
panic(err)
|
|
}
|
|
|
|
err = json.NewDecoder(f).Decode(&suites)
|
|
if err != nil {
|
|
panic(err)
|
|
}
|
|
|
|
var buf bytes.Buffer
|
|
buf.WriteString("package " + suites[0].ProtocolPackage() + "_test\n\n")
|
|
|
|
var innerBuf bytes.Buffer
|
|
innerBuf.WriteString("//\n// Tests begin here\n//\n\n\n")
|
|
|
|
for i, suite := range suites {
|
|
svcPrefix := inout + "Service" + strconv.Itoa(i+1)
|
|
suite.API.Metadata.ServiceAbbreviation = svcPrefix + "ProtocolTest"
|
|
suite.API.Operations = map[string]*api.Operation{}
|
|
for idx, c := range suite.Cases {
|
|
c.Given.ExportedName = svcPrefix + "TestCaseOperation" + strconv.Itoa(idx+1)
|
|
suite.API.Operations[c.Given.ExportedName] = c.Given
|
|
}
|
|
|
|
suite.Type = getType(inout)
|
|
suite.API.NoInitMethods = true // don't generate init methods
|
|
suite.API.NoStringerMethods = true // don't generate stringer methods
|
|
suite.API.NoConstServiceNames = true // don't generate service names
|
|
suite.API.Setup()
|
|
suite.API.Metadata.EndpointPrefix = suite.API.PackageName()
|
|
|
|
// Sort in order for deterministic test generation
|
|
names := make([]string, 0, len(suite.API.Shapes))
|
|
for n := range suite.API.Shapes {
|
|
names = append(names, n)
|
|
}
|
|
sort.Strings(names)
|
|
for _, name := range names {
|
|
s := suite.API.Shapes[name]
|
|
s.Rename(svcPrefix + "TestShape" + name)
|
|
}
|
|
|
|
svcCode := addImports(suite.API.ServiceGoCode())
|
|
if i == 0 {
|
|
importMatch := reImportRemoval.FindStringSubmatch(svcCode)
|
|
buf.WriteString(importMatch[0] + "\n\n")
|
|
buf.WriteString(preamble + "\n\n")
|
|
}
|
|
svcCode = removeImports(svcCode)
|
|
svcCode = strings.Replace(svcCode, "func New(", "func New"+suite.API.StructName()+"(", -1)
|
|
svcCode = strings.Replace(svcCode, "func newClient(", "func new"+suite.API.StructName()+"Client(", -1)
|
|
svcCode = strings.Replace(svcCode, "return newClient(", "return new"+suite.API.StructName()+"Client(", -1)
|
|
buf.WriteString(svcCode + "\n\n")
|
|
|
|
apiCode := removeImports(suite.API.APIGoCode())
|
|
apiCode = strings.Replace(apiCode, "var oprw sync.Mutex", "", -1)
|
|
apiCode = strings.Replace(apiCode, "oprw.Lock()", "", -1)
|
|
apiCode = strings.Replace(apiCode, "defer oprw.Unlock()", "", -1)
|
|
buf.WriteString(apiCode + "\n\n")
|
|
|
|
innerBuf.WriteString(suite.TestSuite() + "\n")
|
|
}
|
|
|
|
return buf.String() + innerBuf.String()
|
|
}
|
|
|
|
// findMember searches the shape for the member with the matching key name.
|
|
func findMember(shape *api.Shape, key string) string {
|
|
for actualKey := range shape.MemberRefs {
|
|
if strings.ToLower(key) == strings.ToLower(actualKey) {
|
|
return actualKey
|
|
}
|
|
}
|
|
return ""
|
|
}
|
|
|
|
// GenerateAssertions builds assertions for a shape based on its type.
|
|
//
|
|
// The shape's recursive values also will have assertions generated for them.
|
|
func GenerateAssertions(out interface{}, shape *api.Shape, prefix string) string {
|
|
if shape == nil {
|
|
return ""
|
|
}
|
|
switch t := out.(type) {
|
|
case map[string]interface{}:
|
|
keys := util.SortedKeys(t)
|
|
|
|
code := ""
|
|
if shape.Type == "map" {
|
|
for _, k := range keys {
|
|
v := t[k]
|
|
s := shape.ValueRef.Shape
|
|
code += GenerateAssertions(v, s, prefix+"[\""+k+"\"]")
|
|
}
|
|
} else if shape.Type == "jsonvalue" {
|
|
code += fmt.Sprintf("reflect.DeepEqual(%s, map[string]interface{}%s)", prefix, walkMap(out.(map[string]interface{})))
|
|
} else {
|
|
for _, k := range keys {
|
|
v := t[k]
|
|
m := findMember(shape, k)
|
|
s := shape.MemberRefs[m].Shape
|
|
code += GenerateAssertions(v, s, prefix+"."+m+"")
|
|
}
|
|
}
|
|
return code
|
|
case []interface{}:
|
|
code := ""
|
|
for i, v := range t {
|
|
s := shape.MemberRef.Shape
|
|
code += GenerateAssertions(v, s, prefix+"["+strconv.Itoa(i)+"]")
|
|
}
|
|
return code
|
|
default:
|
|
switch shape.Type {
|
|
case "timestamp":
|
|
return fmtAssertEqual(
|
|
fmt.Sprintf("time.Unix(%#v, 0).UTC().String()", out),
|
|
fmt.Sprintf("%s.String()", prefix),
|
|
)
|
|
case "blob":
|
|
return fmtAssertEqual(
|
|
fmt.Sprintf("%#v", out),
|
|
fmt.Sprintf("string(%s)", prefix),
|
|
)
|
|
case "integer", "long":
|
|
return fmtAssertEqual(
|
|
fmt.Sprintf("int64(%#v)", out),
|
|
fmt.Sprintf("*%s", prefix),
|
|
)
|
|
default:
|
|
if !reflect.ValueOf(out).IsValid() {
|
|
return fmtAssertNil(prefix)
|
|
}
|
|
return fmtAssertEqual(
|
|
fmt.Sprintf("%#v", out),
|
|
fmt.Sprintf("*%s", prefix),
|
|
)
|
|
}
|
|
}
|
|
}
|
|
|
|
func getType(t string) uint {
|
|
switch t {
|
|
case "Input":
|
|
return TestSuiteTypeInput
|
|
case "Output":
|
|
return TestSuiteTypeOutput
|
|
default:
|
|
panic("Invalid type for test suite")
|
|
}
|
|
}
|
|
|
|
func main() {
|
|
out := generateTestSuite(os.Args[1])
|
|
if len(os.Args) == 3 {
|
|
f, err := os.Create(os.Args[2])
|
|
defer f.Close()
|
|
if err != nil {
|
|
panic(err)
|
|
}
|
|
f.WriteString(util.GoFmt(out))
|
|
f.Close()
|
|
|
|
c := exec.Command("gofmt", "-s", "-w", os.Args[2])
|
|
if err := c.Run(); err != nil {
|
|
panic(err)
|
|
}
|
|
} else {
|
|
fmt.Println(out)
|
|
}
|
|
}
|