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echo_test.go
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echo_test.go
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package echo
import (
"bytes"
stdContext "context"
"errors"
"io/ioutil"
"net/http"
"net/http/httptest"
"reflect"
"strings"
"testing"
"time"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
"golang.org/x/net/http2"
)
type (
user struct {
ID int `json:"id" xml:"id" form:"id" query:"id" param:"id"`
Name string `json:"name" xml:"name" form:"name" query:"name" param:"name"`
}
)
const (
userJSON = `{"id":1,"name":"Jon Snow"}`
userXML = `<user><id>1</id><name>Jon Snow</name></user>`
userForm = `id=1&name=Jon Snow`
invalidContent = "invalid content"
userJSONInvalidType = `{"id":"1","name":"Jon Snow"}`
userXMLConvertNumberError = `<user><id>Number one</id><name>Jon Snow</name></user>`
userXMLUnsupportedTypeError = `<user><>Number one</><name>Jon Snow</name></user>`
)
const userJSONPretty = `{
"id": 1,
"name": "Jon Snow"
}`
const userXMLPretty = `<user>
<id>1</id>
<name>Jon Snow</name>
</user>`
func TestEcho(t *testing.T) {
e := New()
req := httptest.NewRequest(http.MethodGet, "/", nil)
rec := httptest.NewRecorder()
c := e.NewContext(req, rec)
// Router
assert.NotNil(t, e.Router())
// DefaultHTTPErrorHandler
e.DefaultHTTPErrorHandler(errors.New("error"), c)
assert.Equal(t, http.StatusInternalServerError, rec.Code)
}
func TestEchoStatic(t *testing.T) {
e := New()
assert := assert.New(t)
// OK
e.Static("/images", "_fixture/images")
c, b := request(http.MethodGet, "/images/walle.png", e)
assert.Equal(http.StatusOK, c)
assert.NotEmpty(b)
// No file
e.Static("/images", "_fixture/scripts")
c, _ = request(http.MethodGet, "/images/bolt.png", e)
assert.Equal(http.StatusNotFound, c)
// Directory
e.Static("/images", "_fixture/images")
c, _ = request(http.MethodGet, "/images/", e)
assert.Equal(http.StatusNotFound, c)
// Directory Redirect
e.Static("/", "_fixture")
req := httptest.NewRequest(http.MethodGet, "/folder", nil)
rec := httptest.NewRecorder()
e.ServeHTTP(rec, req)
assert.Equal(http.StatusMovedPermanently, rec.Code)
assert.Equal("/folder/", rec.HeaderMap["Location"][0])
// Directory with index.html
e.Static("/", "_fixture")
c, r := request(http.MethodGet, "/", e)
assert.Equal(http.StatusOK, c)
assert.Equal(true, strings.HasPrefix(r, "<!doctype html>"))
// Sub-directory with index.html
c, r = request(http.MethodGet, "/folder/", e)
assert.Equal(http.StatusOK, c)
assert.Equal(true, strings.HasPrefix(r, "<!doctype html>"))
}
func TestEchoFile(t *testing.T) {
e := New()
e.File("/walle", "_fixture/images/walle.png")
c, b := request(http.MethodGet, "/walle", e)
assert.Equal(t, http.StatusOK, c)
assert.NotEmpty(t, b)
}
func TestEchoMiddleware(t *testing.T) {
e := New()
buf := new(bytes.Buffer)
e.Pre(func(next HandlerFunc) HandlerFunc {
return func(c Context) error {
assert.Empty(t, c.Path())
buf.WriteString("-1")
return next(c)
}
})
e.Use(func(next HandlerFunc) HandlerFunc {
return func(c Context) error {
buf.WriteString("1")
return next(c)
}
})
e.Use(func(next HandlerFunc) HandlerFunc {
return func(c Context) error {
buf.WriteString("2")
return next(c)
}
})
e.Use(func(next HandlerFunc) HandlerFunc {
return func(c Context) error {
buf.WriteString("3")
return next(c)
}
})
// Route
e.GET("/", func(c Context) error {
return c.String(http.StatusOK, "OK")
})
c, b := request(http.MethodGet, "/", e)
assert.Equal(t, "-1123", buf.String())
assert.Equal(t, http.StatusOK, c)
assert.Equal(t, "OK", b)
}
func TestEchoMiddlewareError(t *testing.T) {
e := New()
e.Use(func(next HandlerFunc) HandlerFunc {
return func(c Context) error {
return errors.New("error")
}
})
e.GET("/", NotFoundHandler)
c, _ := request(http.MethodGet, "/", e)
assert.Equal(t, http.StatusInternalServerError, c)
}
func TestEchoHandler(t *testing.T) {
e := New()
// HandlerFunc
e.GET("/ok", func(c Context) error {
return c.String(http.StatusOK, "OK")
})
c, b := request(http.MethodGet, "/ok", e)
assert.Equal(t, http.StatusOK, c)
assert.Equal(t, "OK", b)
}
func TestEchoWrapHandler(t *testing.T) {
e := New()
req := httptest.NewRequest(http.MethodGet, "/", nil)
rec := httptest.NewRecorder()
c := e.NewContext(req, rec)
h := WrapHandler(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
w.WriteHeader(http.StatusOK)
w.Write([]byte("test"))
}))
if assert.NoError(t, h(c)) {
assert.Equal(t, http.StatusOK, rec.Code)
assert.Equal(t, "test", rec.Body.String())
}
}
func TestEchoWrapMiddleware(t *testing.T) {
e := New()
req := httptest.NewRequest(http.MethodGet, "/", nil)
rec := httptest.NewRecorder()
c := e.NewContext(req, rec)
buf := new(bytes.Buffer)
mw := WrapMiddleware(func(h http.Handler) http.Handler {
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
buf.Write([]byte("mw"))
h.ServeHTTP(w, r)
})
})
h := mw(func(c Context) error {
return c.String(http.StatusOK, "OK")
})
if assert.NoError(t, h(c)) {
assert.Equal(t, "mw", buf.String())
assert.Equal(t, http.StatusOK, rec.Code)
assert.Equal(t, "OK", rec.Body.String())
}
}
func TestEchoConnect(t *testing.T) {
e := New()
testMethod(t, http.MethodConnect, "/", e)
}
func TestEchoDelete(t *testing.T) {
e := New()
testMethod(t, http.MethodDelete, "/", e)
}
func TestEchoGet(t *testing.T) {
e := New()
testMethod(t, http.MethodGet, "/", e)
}
func TestEchoHead(t *testing.T) {
e := New()
testMethod(t, http.MethodHead, "/", e)
}
func TestEchoOptions(t *testing.T) {
e := New()
testMethod(t, http.MethodOptions, "/", e)
}
func TestEchoPatch(t *testing.T) {
e := New()
testMethod(t, http.MethodPatch, "/", e)
}
func TestEchoPost(t *testing.T) {
e := New()
testMethod(t, http.MethodPost, "/", e)
}
func TestEchoPut(t *testing.T) {
e := New()
testMethod(t, http.MethodPut, "/", e)
}
func TestEchoTrace(t *testing.T) {
e := New()
testMethod(t, http.MethodTrace, "/", e)
}
func TestEchoAny(t *testing.T) { // JFC
e := New()
e.Any("/", func(c Context) error {
return c.String(http.StatusOK, "Any")
})
}
func TestEchoMatch(t *testing.T) { // JFC
e := New()
e.Match([]string{http.MethodGet, http.MethodPost}, "/", func(c Context) error {
return c.String(http.StatusOK, "Match")
})
}
func TestEchoURL(t *testing.T) {
e := New()
static := func(Context) error { return nil }
getUser := func(Context) error { return nil }
getFile := func(Context) error { return nil }
e.GET("/static/file", static)
e.GET("/users/:id", getUser)
g := e.Group("/group")
g.GET("/users/:uid/files/:fid", getFile)
assert := assert.New(t)
assert.Equal("/static/file", e.URL(static))
assert.Equal("/users/:id", e.URL(getUser))
assert.Equal("/users/1", e.URL(getUser, "1"))
assert.Equal("/group/users/1/files/:fid", e.URL(getFile, "1"))
assert.Equal("/group/users/1/files/1", e.URL(getFile, "1", "1"))
}
func TestEchoRoutes(t *testing.T) {
e := New()
routes := []*Route{
{http.MethodGet, "/users/:user/events", ""},
{http.MethodGet, "/users/:user/events/public", ""},
{http.MethodPost, "/repos/:owner/:repo/git/refs", ""},
{http.MethodPost, "/repos/:owner/:repo/git/tags", ""},
}
for _, r := range routes {
e.Add(r.Method, r.Path, func(c Context) error {
return c.String(http.StatusOK, "OK")
})
}
if assert.Equal(t, len(routes), len(e.Routes())) {
for _, r := range e.Routes() {
found := false
for _, rr := range routes {
if r.Method == rr.Method && r.Path == rr.Path {
found = true
break
}
}
if !found {
t.Errorf("Route %s %s not found", r.Method, r.Path)
}
}
}
}
func TestEchoEncodedPath(t *testing.T) {
e := New()
e.GET("/:id", func(c Context) error {
return c.NoContent(http.StatusOK)
})
req := httptest.NewRequest(http.MethodGet, "/with%2Fslash", nil)
rec := httptest.NewRecorder()
e.ServeHTTP(rec, req)
assert.Equal(t, http.StatusOK, rec.Code)
}
func TestEchoGroup(t *testing.T) {
e := New()
buf := new(bytes.Buffer)
e.Use(MiddlewareFunc(func(next HandlerFunc) HandlerFunc {
return func(c Context) error {
buf.WriteString("0")
return next(c)
}
}))
h := func(c Context) error {
return c.NoContent(http.StatusOK)
}
//--------
// Routes
//--------
e.GET("/users", h)
// Group
g1 := e.Group("/group1")
g1.Use(func(next HandlerFunc) HandlerFunc {
return func(c Context) error {
buf.WriteString("1")
return next(c)
}
})
g1.GET("", h)
// Nested groups with middleware
g2 := e.Group("/group2")
g2.Use(func(next HandlerFunc) HandlerFunc {
return func(c Context) error {
buf.WriteString("2")
return next(c)
}
})
g3 := g2.Group("/group3")
g3.Use(func(next HandlerFunc) HandlerFunc {
return func(c Context) error {
buf.WriteString("3")
return next(c)
}
})
g3.GET("", h)
request(http.MethodGet, "/users", e)
assert.Equal(t, "0", buf.String())
buf.Reset()
request(http.MethodGet, "/group1", e)
assert.Equal(t, "01", buf.String())
buf.Reset()
request(http.MethodGet, "/group2/group3", e)
assert.Equal(t, "023", buf.String())
}
func TestEchoNotFound(t *testing.T) {
e := New()
req := httptest.NewRequest(http.MethodGet, "/files", nil)
rec := httptest.NewRecorder()
e.ServeHTTP(rec, req)
assert.Equal(t, http.StatusNotFound, rec.Code)
}
func TestEchoMethodNotAllowed(t *testing.T) {
e := New()
e.GET("/", func(c Context) error {
return c.String(http.StatusOK, "Echo!")
})
req := httptest.NewRequest(http.MethodPost, "/", nil)
rec := httptest.NewRecorder()
e.ServeHTTP(rec, req)
assert.Equal(t, http.StatusMethodNotAllowed, rec.Code)
}
func TestEchoContext(t *testing.T) {
e := New()
c := e.AcquireContext()
assert.IsType(t, new(context), c)
e.ReleaseContext(c)
}
func TestEchoStart(t *testing.T) {
e := New()
go func() {
assert.NoError(t, e.Start(":0"))
}()
time.Sleep(200 * time.Millisecond)
}
func TestEchoStartTLS(t *testing.T) {
e := New()
go func() {
err := e.StartTLS(":0", "_fixture/certs/cert.pem", "_fixture/certs/key.pem")
// Prevent the test to fail after closing the servers
if err != http.ErrServerClosed {
assert.NoError(t, err)
}
}()
time.Sleep(200 * time.Millisecond)
e.Close()
}
func TestEchoStartTLSByteString(t *testing.T) {
cert, err := ioutil.ReadFile("_fixture/certs/cert.pem")
require.NoError(t, err)
key, err := ioutil.ReadFile("_fixture/certs/key.pem")
require.NoError(t, err)
testCases := []struct {
cert interface{}
key interface{}
expectedErr error
name string
}{
{
cert: "_fixture/certs/cert.pem",
key: "_fixture/certs/key.pem",
expectedErr: nil,
name: `ValidCertAndKeyFilePath`,
},
{
cert: cert,
key: key,
expectedErr: nil,
name: `ValidCertAndKeyByteString`,
},
{
cert: cert,
key: 1,
expectedErr: ErrInvalidCertOrKeyType,
name: `InvalidKeyType`,
},
{
cert: 0,
key: key,
expectedErr: ErrInvalidCertOrKeyType,
name: `InvalidCertType`,
},
{
cert: 0,
key: 1,
expectedErr: ErrInvalidCertOrKeyType,
name: `InvalidCertAndKeyTypes`,
},
}
for _, test := range testCases {
test := test
t.Run(test.name, func(t *testing.T) {
e := New()
e.HideBanner = true
go func() {
err := e.StartTLS(":0", test.cert, test.key)
if test.expectedErr != nil {
require.EqualError(t, err, test.expectedErr.Error())
} else if err != http.ErrServerClosed { // Prevent the test to fail after closing the servers
require.NoError(t, err)
}
}()
time.Sleep(200 * time.Millisecond)
require.NoError(t, e.Close())
})
}
}
func TestEchoStartAutoTLS(t *testing.T) {
e := New()
errChan := make(chan error, 0)
go func() {
errChan <- e.StartAutoTLS(":0")
}()
time.Sleep(200 * time.Millisecond)
select {
case err := <-errChan:
assert.NoError(t, err)
default:
assert.NoError(t, e.Close())
}
}
func TestEchoStartH2CServer(t *testing.T) {
e := New()
e.Debug = true
h2s := &http2.Server{}
go func() {
assert.NoError(t, e.StartH2CServer(":0", h2s))
}()
time.Sleep(200 * time.Millisecond)
}
func testMethod(t *testing.T, method, path string, e *Echo) {
p := reflect.ValueOf(path)
h := reflect.ValueOf(func(c Context) error {
return c.String(http.StatusOK, method)
})
i := interface{}(e)
reflect.ValueOf(i).MethodByName(method).Call([]reflect.Value{p, h})
_, body := request(method, path, e)
assert.Equal(t, method, body)
}
func request(method, path string, e *Echo) (int, string) {
req := httptest.NewRequest(method, path, nil)
rec := httptest.NewRecorder()
e.ServeHTTP(rec, req)
return rec.Code, rec.Body.String()
}
func TestHTTPError(t *testing.T) {
t.Run("non-internal", func(t *testing.T) {
err := NewHTTPError(http.StatusBadRequest, map[string]interface{}{
"code": 12,
})
assert.Equal(t, "code=400, message=map[code:12]", err.Error())
})
t.Run("internal", func(t *testing.T) {
err := NewHTTPError(http.StatusBadRequest, map[string]interface{}{
"code": 12,
})
err.SetInternal(errors.New("internal error"))
assert.Equal(t, "code=400, message=map[code:12], internal=internal error", err.Error())
})
}
func TestDefaultHTTPErrorHandler(t *testing.T) {
e := New()
e.Debug = true
e.Any("/plain", func(c Context) error {
return errors.New("An error occurred")
})
e.Any("/badrequest", func(c Context) error {
return NewHTTPError(http.StatusBadRequest, "Invalid request")
})
e.Any("/servererror", func(c Context) error {
return NewHTTPError(http.StatusInternalServerError, map[string]interface{}{
"code": 33,
"message": "Something bad happened",
"error": "stackinfo",
})
})
// With Debug=true plain response contains error message
c, b := request(http.MethodGet, "/plain", e)
assert.Equal(t, http.StatusInternalServerError, c)
assert.Equal(t, "{\n \"error\": \"An error occurred\",\n \"message\": \"Internal Server Error\"\n}\n", b)
// and special handling for HTTPError
c, b = request(http.MethodGet, "/badrequest", e)
assert.Equal(t, http.StatusBadRequest, c)
assert.Equal(t, "{\n \"error\": \"code=400, message=Invalid request\",\n \"message\": \"Invalid request\"\n}\n", b)
// complex errors are serialized to pretty JSON
c, b = request(http.MethodGet, "/servererror", e)
assert.Equal(t, http.StatusInternalServerError, c)
assert.Equal(t, "{\n \"code\": 33,\n \"error\": \"stackinfo\",\n \"message\": \"Something bad happened\"\n}\n", b)
e.Debug = false
// With Debug=false the error response is shortened
c, b = request(http.MethodGet, "/plain", e)
assert.Equal(t, http.StatusInternalServerError, c)
assert.Equal(t, "{\"message\":\"Internal Server Error\"}\n", b)
c, b = request(http.MethodGet, "/badrequest", e)
assert.Equal(t, http.StatusBadRequest, c)
assert.Equal(t, "{\"message\":\"Invalid request\"}\n", b)
// No difference for error response with non plain string errors
c, b = request(http.MethodGet, "/servererror", e)
assert.Equal(t, http.StatusInternalServerError, c)
assert.Equal(t, "{\"code\":33,\"error\":\"stackinfo\",\"message\":\"Something bad happened\"}\n", b)
}
func TestEchoClose(t *testing.T) {
e := New()
errCh := make(chan error)
go func() {
errCh <- e.Start(":0")
}()
time.Sleep(200 * time.Millisecond)
if err := e.Close(); err != nil {
t.Fatal(err)
}
assert.NoError(t, e.Close())
err := <-errCh
assert.Equal(t, err.Error(), "http: Server closed")
}
func TestEchoShutdown(t *testing.T) {
e := New()
errCh := make(chan error)
go func() {
errCh <- e.Start(":0")
}()
time.Sleep(200 * time.Millisecond)
if err := e.Close(); err != nil {
t.Fatal(err)
}
ctx, cancel := stdContext.WithTimeout(stdContext.Background(), 10*time.Second)
defer cancel()
assert.NoError(t, e.Shutdown(ctx))
err := <-errCh
assert.Equal(t, err.Error(), "http: Server closed")
}