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echo/middleware/body_limit_test.go
2022-04-05 20:34:49 +03:00

88 lines
2.3 KiB
Go

package middleware
import (
"bytes"
"io/ioutil"
"net/http"
"net/http/httptest"
"testing"
"github.com/labstack/echo/v4"
"github.com/stretchr/testify/assert"
)
func TestBodyLimit(t *testing.T) {
e := echo.New()
hw := []byte("Hello, World!")
req := httptest.NewRequest(http.MethodPost, "/", bytes.NewReader(hw))
rec := httptest.NewRecorder()
c := e.NewContext(req, rec)
h := func(c echo.Context) error {
body, err := ioutil.ReadAll(c.Request().Body)
if err != nil {
return err
}
return c.String(http.StatusOK, string(body))
}
assert := assert.New(t)
// Based on content length (within limit)
if assert.NoError(BodyLimit("2M")(h)(c)) {
assert.Equal(http.StatusOK, rec.Code)
assert.Equal(hw, rec.Body.Bytes())
}
// Based on content length (overlimit)
he := BodyLimit("2B")(h)(c).(*echo.HTTPError)
assert.Equal(http.StatusRequestEntityTooLarge, he.Code)
// Based on content read (within limit)
req = httptest.NewRequest(http.MethodPost, "/", bytes.NewReader(hw))
req.ContentLength = -1
rec = httptest.NewRecorder()
c = e.NewContext(req, rec)
if assert.NoError(BodyLimit("2M")(h)(c)) {
assert.Equal(http.StatusOK, rec.Code)
assert.Equal("Hello, World!", rec.Body.String())
}
// Based on content read (overlimit)
req = httptest.NewRequest(http.MethodPost, "/", bytes.NewReader(hw))
req.ContentLength = -1
rec = httptest.NewRecorder()
c = e.NewContext(req, rec)
he = BodyLimit("2B")(h)(c).(*echo.HTTPError)
assert.Equal(http.StatusRequestEntityTooLarge, he.Code)
}
func TestBodyLimitReader(t *testing.T) {
hw := []byte("Hello, World!")
e := echo.New()
req := httptest.NewRequest(http.MethodPost, "/", bytes.NewReader(hw))
rec := httptest.NewRecorder()
config := BodyLimitConfig{
Skipper: DefaultSkipper,
Limit: "2B",
limit: 2,
}
reader := &limitedReader{
BodyLimitConfig: config,
reader: ioutil.NopCloser(bytes.NewReader(hw)),
context: e.NewContext(req, rec),
}
// read all should return ErrStatusRequestEntityTooLarge
_, err := ioutil.ReadAll(reader)
he := err.(*echo.HTTPError)
assert.Equal(t, http.StatusRequestEntityTooLarge, he.Code)
// reset reader and read two bytes must succeed
bt := make([]byte, 2)
reader.Reset(ioutil.NopCloser(bytes.NewReader(hw)), e.NewContext(req, rec))
n, err := reader.Read(bt)
assert.Equal(t, 2, n)
assert.Equal(t, nil, err)
}