gin/middleware_test.go

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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 (
"errors"
"testing"
"github.com/stretchr/testify/assert"
)
func TestMiddlewareGeneralCase(t *testing.T) {
signature := ""
router := New()
router.Use(func(c *Context) {
signature += "A"
c.Next()
signature += "B"
})
router.Use(func(c *Context) {
signature += "C"
})
router.GET("/", func(c *Context) {
signature += "D"
})
router.NoRoute(func(c *Context) {
signature += "X"
})
router.NoMethod(func(c *Context) {
signature += "X"
})
// RUN
w := performRequest(router, "GET", "/")
// TEST
assert.Equal(t, w.Code, 200)
assert.Equal(t, signature, "ACDB")
}
// TestBadAbortHandlersChain - ensure that Abort after switch context will not interrupt pending handlers
func TestMiddlewareNextOrder(t *testing.T) {
signature := ""
router := New()
router.Use(func(c *Context) {
signature += "A"
c.Next()
signature += "B"
})
router.Use(func(c *Context) {
signature += "C"
c.Next()
signature += "D"
})
router.NoRoute(func(c *Context) {
signature += "E"
c.Next()
signature += "F"
}, func(c *Context) {
signature += "G"
c.Next()
signature += "H"
})
// RUN
w := performRequest(router, "GET", "/")
// TEST
assert.Equal(t, w.Code, 404)
assert.Equal(t, signature, "ACEGHFDB")
}
// TestAbortHandlersChain - ensure that Abort interrupt used middlewares in fifo order
func TestMiddlewareAbortHandlersChain(t *testing.T) {
signature := ""
router := New()
router.Use(func(c *Context) {
signature += "A"
})
router.Use(func(c *Context) {
signature += "C"
c.AbortWithStatus(409)
c.Next()
signature += "D"
})
router.GET("/", func(c *Context) {
signature += "D"
c.Next()
signature += "E"
})
// RUN
w := performRequest(router, "GET", "/")
// TEST
assert.Equal(t, w.Code, 409)
assert.Equal(t, signature, "ACD")
}
func TestMiddlewareAbortHandlersChainAndNext(t *testing.T) {
signature := ""
router := New()
router.Use(func(c *Context) {
signature += "A"
c.AbortWithStatus(410)
c.Next()
signature += "B"
})
router.GET("/", func(c *Context) {
signature += "C"
c.Next()
})
// RUN
w := performRequest(router, "GET", "/")
// TEST
assert.Equal(t, w.Code, 410)
assert.Equal(t, signature, "AB")
}
// TestFailHandlersChain - ensure that Fail interrupt used middlewares in fifo order as
// as well as Abort
func TestMiddlewareFailHandlersChain(t *testing.T) {
// SETUP
signature := ""
router := New()
router.Use(func(context *Context) {
signature += "A"
context.Fail(500, errors.New("foo"))
})
router.Use(func(context *Context) {
signature += "B"
context.Next()
signature += "C"
})
// RUN
w := performRequest(router, "GET", "/")
// TEST
assert.Equal(t, w.Code, 500)
assert.Equal(t, signature, "A")
}