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// Copyright 2014 Manu Martinez-Almeida. All rights reserved.
// Use of this source code is governed by a MIT style
// license that can be found in the LICENSE file.
package gin
import (
"crypto/tls"
"fmt"
"html/template"
"io/ioutil"
"net"
"net/http"
"net/http/httptest"
"reflect"
"strconv"
"sync/atomic"
"testing"
"time"
"github.com/stretchr/testify/assert"
)
func formatAsDate(t time.Time) string {
year, month, day := t.Date()
return fmt.Sprintf("%d/%02d/%02d", year, month, day)
}
func setupHTMLFiles(t *testing.T, mode string, tls bool, loadMethod func(*Engine)) *httptest.Server {
SetMode(mode)
defer SetMode(TestMode)
var router *Engine
captureOutput(t, func() {
router = New()
router.Delims("{[{", "}]}")
router.SetFuncMap(template.FuncMap{
"formatAsDate": formatAsDate,
})
loadMethod(router)
router.GET("/test", func(c *Context) {
c.HTML(http.StatusOK, "hello.tmpl", map[string]string{"name": "world"})
})
router.GET("/raw", func(c *Context) {
c.HTML(http.StatusOK, "raw.tmpl", map[string]interface{}{
"now": time.Date(2017, 07, 01, 0, 0, 0, 0, time.UTC),
})
})
})
var ts *httptest.Server
if tls {
ts = httptest.NewTLSServer(router)
ts = httptest.NewServer(router)
}
return ts
}
func TestLoadHTMLGlobDebugMode(t *testing.T) {
ts := setupHTMLFiles(
t,
DebugMode,
false,
func(router *Engine) {
router.LoadHTMLGlob("./testdata/template/*")
},
)
defer ts.Close()
res, err := http.Get(fmt.Sprintf("%s/test", ts.URL))
if err != nil {
fmt.Println(err)
}
resp, _ := ioutil.ReadAll(res.Body)
assert.Equal(t, "<h1>Hello world</h1>", string(resp))
}
func TestLoadHTMLGlobTestMode(t *testing.T) {
ts := setupHTMLFiles(
t,
TestMode,
false,
func(router *Engine) {
router.LoadHTMLGlob("./testdata/template/*")
},
)
defer ts.Close()
res, err := http.Get(fmt.Sprintf("%s/test", ts.URL))
if err != nil {
fmt.Println(err)
}
resp, _ := ioutil.ReadAll(res.Body)
assert.Equal(t, "<h1>Hello world</h1>", string(resp))
}
func TestLoadHTMLGlobReleaseMode(t *testing.T) {
ts := setupHTMLFiles(
t,
ReleaseMode,
false,
func(router *Engine) {
router.LoadHTMLGlob("./testdata/template/*")
},
)
defer ts.Close()
res, err := http.Get(fmt.Sprintf("%s/test", ts.URL))
if err != nil {
fmt.Println(err)
}
resp, _ := ioutil.ReadAll(res.Body)
assert.Equal(t, "<h1>Hello world</h1>", string(resp))
}
func TestLoadHTMLGlobUsingTLS(t *testing.T) {
ts := setupHTMLFiles(
t,
DebugMode,
true,
func(router *Engine) {
router.LoadHTMLGlob("./testdata/template/*")
},
)
defer ts.Close()
// Use InsecureSkipVerify for avoiding `x509: certificate signed by unknown authority` error
tr := &http.Transport{
TLSClientConfig: &tls.Config{
InsecureSkipVerify: true,
},
}
client := &http.Client{Transport: tr}
res, err := client.Get(fmt.Sprintf("%s/test", ts.URL))
if err != nil {
fmt.Println(err)
}
resp, _ := ioutil.ReadAll(res.Body)
assert.Equal(t, "<h1>Hello world</h1>", string(resp))
}
func TestLoadHTMLGlobFromFuncMap(t *testing.T) {
ts := setupHTMLFiles(
t,
DebugMode,
false,
func(router *Engine) {
router.LoadHTMLGlob("./testdata/template/*")
},
)
defer ts.Close()
res, err := http.Get(fmt.Sprintf("%s/raw", ts.URL))
if err != nil {
fmt.Println(err)
}
resp, _ := ioutil.ReadAll(res.Body)
assert.Equal(t, "Date: 2017/07/01\n", string(resp))
}
func init() {
SetMode(TestMode)
}
func TestCreateEngine(t *testing.T) {
router := New()
assert.Equal(t, "/", router.basePath)
assert.Equal(t, router.engine, router)
assert.Empty(t, router.Handlers)
}
func TestLoadHTMLFilesTestMode(t *testing.T) {
ts := setupHTMLFiles(
t,
TestMode,
false,
func(router *Engine) {
router.LoadHTMLFiles("./testdata/template/hello.tmpl", "./testdata/template/raw.tmpl")
},
)
defer ts.Close()
res, err := http.Get(fmt.Sprintf("%s/test", ts.URL))
if err != nil {
fmt.Println(err)
}
resp, _ := ioutil.ReadAll(res.Body)
assert.Equal(t, "<h1>Hello world</h1>", string(resp))
}
func TestLoadHTMLFilesDebugMode(t *testing.T) {
ts := setupHTMLFiles(
t,
DebugMode,
false,
func(router *Engine) {
router.LoadHTMLFiles("./testdata/template/hello.tmpl", "./testdata/template/raw.tmpl")
},
)
defer ts.Close()
res, err := http.Get(fmt.Sprintf("%s/test", ts.URL))
if err != nil {
fmt.Println(err)
}
resp, _ := ioutil.ReadAll(res.Body)
assert.Equal(t, "<h1>Hello world</h1>", string(resp))
}
func TestLoadHTMLFilesReleaseMode(t *testing.T) {
ts := setupHTMLFiles(
t,
ReleaseMode,
false,
func(router *Engine) {
router.LoadHTMLFiles("./testdata/template/hello.tmpl", "./testdata/template/raw.tmpl")
},
)
defer ts.Close()
res, err := http.Get(fmt.Sprintf("%s/test", ts.URL))
if err != nil {
fmt.Println(err)
}
resp, _ := ioutil.ReadAll(res.Body)
assert.Equal(t, "<h1>Hello world</h1>", string(resp))
}
func TestLoadHTMLFilesUsingTLS(t *testing.T) {
ts := setupHTMLFiles(
t,
TestMode,
true,
func(router *Engine) {
router.LoadHTMLFiles("./testdata/template/hello.tmpl", "./testdata/template/raw.tmpl")
},
)
defer ts.Close()
// Use InsecureSkipVerify for avoiding `x509: certificate signed by unknown authority` error
tr := &http.Transport{
TLSClientConfig: &tls.Config{
InsecureSkipVerify: true,
},
}
client := &http.Client{Transport: tr}
res, err := client.Get(fmt.Sprintf("%s/test", ts.URL))
if err != nil {
fmt.Println(err)
}
resp, _ := ioutil.ReadAll(res.Body)
assert.Equal(t, "<h1>Hello world</h1>", string(resp))
}
func TestLoadHTMLFilesFuncMap(t *testing.T) {
ts := setupHTMLFiles(
t,
TestMode,
false,
func(router *Engine) {
router.LoadHTMLFiles("./testdata/template/hello.tmpl", "./testdata/template/raw.tmpl")
},
)
defer ts.Close()
res, err := http.Get(fmt.Sprintf("%s/raw", ts.URL))
if err != nil {
fmt.Println(err)
}
resp, _ := ioutil.ReadAll(res.Body)
assert.Equal(t, "Date: 2017/07/01\n", string(resp))
}
func TestAddRoute(t *testing.T) {
router := New()
router.addRoute("GET", "/", HandlersChain{func(_ *Context) {}})
assert.Len(t, router.trees, 1)
assert.NotNil(t, router.trees.get("GET"))
assert.Nil(t, router.trees.get("POST"))
router.addRoute("POST", "/", HandlersChain{func(_ *Context) {}})
assert.Len(t, router.trees, 2)
assert.NotNil(t, router.trees.get("GET"))
assert.NotNil(t, router.trees.get("POST"))
router.addRoute("POST", "/post", HandlersChain{func(_ *Context) {}})
assert.Len(t, router.trees, 2)
}
func TestAddRouteFails(t *testing.T) {
router := New()
assert.Panics(t, func() { router.addRoute("", "/", HandlersChain{func(_ *Context) {}}) })
assert.Panics(t, func() { router.addRoute("GET", "a", HandlersChain{func(_ *Context) {}}) })
assert.Panics(t, func() { router.addRoute("GET", "/", HandlersChain{}) })
router.addRoute("POST", "/post", HandlersChain{func(_ *Context) {}})
assert.Panics(t, func() {
router.addRoute("POST", "/post", HandlersChain{func(_ *Context) {}})
})
}
func TestCreateDefaultRouter(t *testing.T) {
router := Default()
assert.Len(t, router.Handlers, 2)
}
func TestNoRouteWithoutGlobalHandlers(t *testing.T) {
var middleware0 HandlerFunc = func(c *Context) {}
var middleware1 HandlerFunc = func(c *Context) {}
router := New()
router.NoRoute(middleware0)
assert.Nil(t, router.Handlers)
assert.Len(t, router.noRoute, 1)
assert.Len(t, router.allNoRoute, 1)
compareFunc(t, router.noRoute[0], middleware0)
compareFunc(t, router.allNoRoute[0], middleware0)
router.NoRoute(middleware1, middleware0)
assert.Len(t, router.noRoute, 2)
assert.Len(t, router.allNoRoute, 2)
compareFunc(t, router.noRoute[0], middleware1)
compareFunc(t, router.allNoRoute[0], middleware1)
compareFunc(t, router.noRoute[1], middleware0)
compareFunc(t, router.allNoRoute[1], middleware0)
}
func TestNoRouteWithGlobalHandlers(t *testing.T) {
var middleware0 HandlerFunc = func(c *Context) {}
var middleware1 HandlerFunc = func(c *Context) {}
var middleware2 HandlerFunc = func(c *Context) {}
router := New()
router.Use(middleware2)
router.NoRoute(middleware0)
assert.Len(t, router.allNoRoute, 2)
assert.Len(t, router.Handlers, 1)
assert.Len(t, router.noRoute, 1)
compareFunc(t, router.Handlers[0], middleware2)
compareFunc(t, router.noRoute[0], middleware0)
compareFunc(t, router.allNoRoute[0], middleware2)
compareFunc(t, router.allNoRoute[1], middleware0)
router.Use(middleware1)
assert.Len(t, router.allNoRoute, 3)
assert.Len(t, router.Handlers, 2)
assert.Len(t, router.noRoute, 1)
compareFunc(t, router.Handlers[0], middleware2)
compareFunc(t, router.Handlers[1], middleware1)
compareFunc(t, router.noRoute[0], middleware0)
compareFunc(t, router.allNoRoute[0], middleware2)
compareFunc(t, router.allNoRoute[1], middleware1)
compareFunc(t, router.allNoRoute[2], middleware0)
}
func TestNoMethodWithoutGlobalHandlers(t *testing.T) {
var middleware0 HandlerFunc = func(c *Context) {}
var middleware1 HandlerFunc = func(c *Context) {}
router := New()
router.NoMethod(middleware0)
assert.Empty(t, router.Handlers)
assert.Len(t, router.noMethod, 1)
assert.Len(t, router.allNoMethod, 1)
compareFunc(t, router.noMethod[0], middleware0)
compareFunc(t, router.allNoMethod[0], middleware0)
router.NoMethod(middleware1, middleware0)
assert.Len(t, router.noMethod, 2)
assert.Len(t, router.allNoMethod, 2)
compareFunc(t, router.noMethod[0], middleware1)
compareFunc(t, router.allNoMethod[0], middleware1)
compareFunc(t, router.noMethod[1], middleware0)
compareFunc(t, router.allNoMethod[1], middleware0)
}
func TestRebuild404Handlers(t *testing.T) {
}
func TestNoMethodWithGlobalHandlers(t *testing.T) {
var middleware0 HandlerFunc = func(c *Context) {}
var middleware1 HandlerFunc = func(c *Context) {}
var middleware2 HandlerFunc = func(c *Context) {}
router := New()
router.Use(middleware2)
router.NoMethod(middleware0)
assert.Len(t, router.allNoMethod, 2)
assert.Len(t, router.Handlers, 1)
assert.Len(t, router.noMethod, 1)
compareFunc(t, router.Handlers[0], middleware2)
compareFunc(t, router.noMethod[0], middleware0)
compareFunc(t, router.allNoMethod[0], middleware2)
compareFunc(t, router.allNoMethod[1], middleware0)
router.Use(middleware1)
assert.Len(t, router.allNoMethod, 3)
assert.Len(t, router.Handlers, 2)
assert.Len(t, router.noMethod, 1)
compareFunc(t, router.Handlers[0], middleware2)
compareFunc(t, router.Handlers[1], middleware1)
compareFunc(t, router.noMethod[0], middleware0)
compareFunc(t, router.allNoMethod[0], middleware2)
compareFunc(t, router.allNoMethod[1], middleware1)
compareFunc(t, router.allNoMethod[2], middleware0)
}
func compareFunc(t *testing.T, a, b interface{}) {
sf1 := reflect.ValueOf(a)
sf2 := reflect.ValueOf(b)
if sf1.Pointer() != sf2.Pointer() {
t.Error("different functions")
}
}
func TestListOfRoutes(t *testing.T) {
router := New()
router.GET("/favicon.ico", handlerTest1)
router.GET("/", handlerTest1)
group := router.Group("/users")
{
group.GET("/", handlerTest2)
group.GET("/:id", handlerTest1)
group.POST("/:id", handlerTest2)
}
router.Static("/static", ".")
list := router.Routes()
assert.Len(t, list, 7)
assertRoutePresent(t, list, RouteInfo{
Method: "GET",
Path: "/favicon.ico",
Handler: "^(.*/vendor/)?github.com/gin-gonic/gin.handlerTest1$",
})
assertRoutePresent(t, list, RouteInfo{
Method: "GET",
Path: "/",
Handler: "^(.*/vendor/)?github.com/gin-gonic/gin.handlerTest1$",
})
assertRoutePresent(t, list, RouteInfo{
Method: "GET",
Path: "/users/",
Handler: "^(.*/vendor/)?github.com/gin-gonic/gin.handlerTest2$",
})
assertRoutePresent(t, list, RouteInfo{
Method: "GET",
Path: "/users/:id",
Handler: "^(.*/vendor/)?github.com/gin-gonic/gin.handlerTest1$",
})
assertRoutePresent(t, list, RouteInfo{
Method: "POST",
Path: "/users/:id",
Handler: "^(.*/vendor/)?github.com/gin-gonic/gin.handlerTest2$",
})
}
func TestEngineHandleContext(t *testing.T) {
r := New()
r.GET("/", func(c *Context) {
c.Request.URL.Path = "/v2"
r.HandleContext(c)
})
v2 := r.Group("/v2")
{
v2.GET("/", func(c *Context) {})
}
assert.NotPanics(t, func() {
w := performRequest(r, "GET", "/")
assert.Equal(t, 301, w.Code)
})
}
func TestEngineHandleContextManyReEntries(t *testing.T) {
expectValue := 10000
var handlerCounter, middlewareCounter int64
r := New()
r.Use(func(c *Context) {
atomic.AddInt64(&middlewareCounter, 1)
})
r.GET("/:count", func(c *Context) {
countStr := c.Param("count")
count, err := strconv.Atoi(countStr)
assert.NoError(t, err)
n, err := c.Writer.Write([]byte("."))
assert.NoError(t, err)
assert.Equal(t, 1, n)
switch {
case count > 0:
c.Request.URL.Path = "/" + strconv.Itoa(count-1)
r.HandleContext(c)
}
}, func(c *Context) {
atomic.AddInt64(&handlerCounter, 1)
})
assert.NotPanics(t, func() {
w := performRequest(r, "GET", "/"+strconv.Itoa(expectValue-1)) // include 0 value
assert.Equal(t, 200, w.Code)
assert.Equal(t, expectValue, w.Body.Len())
})
assert.Equal(t, int64(expectValue), handlerCounter)
assert.Equal(t, int64(expectValue), middlewareCounter)
}
func TestPrepareTrustedCIRDsWith(t *testing.T) {
r := New()
// valid ipv4 cidr
{
expectedTrustedCIDRs := []*net.IPNet{parseCIDR("0.0.0.0/0")}
r.TrustedProxies = []string{"0.0.0.0/0"}
trustedCIDRs, err := r.prepareTrustedCIDRs()
assert.NoError(t, err)
assert.Equal(t, expectedTrustedCIDRs, trustedCIDRs)
}
// invalid ipv4 cidr
{
r.TrustedProxies = []string{"192.168.1.33/33"}
_, err := r.prepareTrustedCIDRs()
assert.Error(t, err)
}
// valid ipv4 address
{
expectedTrustedCIDRs := []*net.IPNet{parseCIDR("192.168.1.33/32")}
r.TrustedProxies = []string{"192.168.1.33"}
trustedCIDRs, err := r.prepareTrustedCIDRs()
assert.NoError(t, err)
assert.Equal(t, expectedTrustedCIDRs, trustedCIDRs)
}
// invalid ipv4 address
{
r.TrustedProxies = []string{"192.168.1.256"}
_, err := r.prepareTrustedCIDRs()
assert.Error(t, err)
}
// valid ipv6 address
{
expectedTrustedCIDRs := []*net.IPNet{parseCIDR("2002:0000:0000:1234:abcd:ffff:c0a8:0101/128")}
r.TrustedProxies = []string{"2002:0000:0000:1234:abcd:ffff:c0a8:0101"}
trustedCIDRs, err := r.prepareTrustedCIDRs()
assert.NoError(t, err)
assert.Equal(t, expectedTrustedCIDRs, trustedCIDRs)
}
// invalid ipv6 address
{
r.TrustedProxies = []string{"gggg:0000:0000:1234:abcd:ffff:c0a8:0101"}
_, err := r.prepareTrustedCIDRs()
assert.Error(t, err)
}
// valid ipv6 cidr
{
expectedTrustedCIDRs := []*net.IPNet{parseCIDR("::/0")}
r.TrustedProxies = []string{"::/0"}
trustedCIDRs, err := r.prepareTrustedCIDRs()
assert.NoError(t, err)
assert.Equal(t, expectedTrustedCIDRs, trustedCIDRs)
}
// invalid ipv6 cidr
{
r.TrustedProxies = []string{"gggg:0000:0000:1234:abcd:ffff:c0a8:0101/129"}
_, err := r.prepareTrustedCIDRs()
assert.Error(t, err)
}
// valid combination
{
expectedTrustedCIDRs := []*net.IPNet{
parseCIDR("::/0"),
parseCIDR("192.168.0.0/16"),
parseCIDR("172.16.0.1/32"),
}
r.TrustedProxies = []string{
"::/0",
"192.168.0.0/16",
"172.16.0.1",
}
trustedCIDRs, err := r.prepareTrustedCIDRs()
assert.NoError(t, err)
assert.Equal(t, expectedTrustedCIDRs, trustedCIDRs)
}
// invalid combination
{
r.TrustedProxies = []string{
"::/0",
"192.168.0.0/16",
"172.16.0.256",
}
_, err := r.prepareTrustedCIDRs()
assert.Error(t, err)
}
// nil value
{
r.TrustedProxies = nil
trustedCIDRs, err := r.prepareTrustedCIDRs()
assert.Nil(t, trustedCIDRs)
assert.Nil(t, err)
}
}
func parseCIDR(cidr string) *net.IPNet {
_, parsedCIDR, err := net.ParseCIDR(cidr)
if err != nil {
fmt.Println(err)
}
return parsedCIDR
}
func assertRoutePresent(t *testing.T, gotRoutes RoutesInfo, wantRoute RouteInfo) {
for _, gotRoute := range gotRoutes {
if gotRoute.Path == wantRoute.Path && gotRoute.Method == wantRoute.Method {
assert.Regexp(t, wantRoute.Handler, gotRoute.Handler)
return
}
}
t.Errorf("route not found: %v", wantRoute)
}
func handlerTest1(c *Context) {}
func handlerTest2(c *Context) {}