traefik/middlewares/replace_path_regex_test.go
2017-10-30 12:54:03 +01:00

80 lines
2.2 KiB
Go

package middlewares
import (
"net/http"
"testing"
"github.com/containous/traefik/testhelpers"
"github.com/stretchr/testify/assert"
)
func TestReplacePathRegex(t *testing.T) {
testCases := []struct {
desc string
path string
replacement string
regex string
expectedPath string
expectedHeader string
}{
{
desc: "simple regex",
path: "/whoami/and/whoami",
replacement: "/who-am-i/$1",
regex: `^/whoami/(.*)`,
expectedPath: "/who-am-i/and/whoami",
expectedHeader: "/whoami/and/whoami",
},
{
desc: "simple replace (no regex)",
path: "/whoami/and/whoami",
replacement: "/who-am-i",
regex: `/whoami`,
expectedPath: "/who-am-i/and/who-am-i",
expectedHeader: "/whoami/and/whoami",
},
{
desc: "multiple replacement",
path: "/downloads/src/source.go",
replacement: "/downloads/$1-$2",
regex: `^(?i)/downloads/([^/]+)/([^/]+)$`,
expectedPath: "/downloads/src-source.go",
expectedHeader: "/downloads/src/source.go",
},
{
desc: "invalid regular expression",
path: "/invalid/regexp/test",
replacement: "/valid/regexp/$1",
regex: `^(?err)/invalid/regexp/([^/]+)$`,
expectedPath: "/invalid/regexp/test",
},
}
for _, test := range testCases {
test := test
t.Run(test.desc, func(t *testing.T) {
t.Parallel()
var actualPath, actualHeader, requestURI string
handler := NewReplacePathRegexHandler(
test.regex,
test.replacement,
http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
actualPath = r.URL.Path
actualHeader = r.Header.Get(ReplacedPathHeader)
requestURI = r.RequestURI
}),
)
req := testhelpers.MustNewRequest(http.MethodGet, "http://localhost"+test.path, nil)
handler.ServeHTTP(nil, req)
assert.Equal(t, test.expectedPath, actualPath, "Unexpected path.")
assert.Equal(t, test.expectedHeader, actualHeader, "Unexpected '%s' header.", ReplacedPathHeader)
if test.expectedHeader != "" {
assert.Equal(t, actualPath, requestURI, "Unexpected request URI.")
}
})
}
}