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package utils
import (
"net/http"
"net/url"
"testing"
"github.com/stretchr/testify/assert"
)
// Make sure copy does it right, so the copied url is safe to alter without modifying the other.
func TestCopyUrl(t *testing.T) {
userinfo := url.UserPassword("foo", "secret")
urlA := &url.URL{
Scheme: "http",
Host: "localhost:5000",
Path: "/upstream",
Opaque: "opaque",
RawQuery: "a=1&b=2",
Fragment: "#hello",
User: userinfo,
}
urlB := CopyURL(urlA)
assert.Equal(t, urlA, urlB)
*userinfo = *url.User("bar")
assert.Equal(t, urlA.User, userinfo)
assert.NotEqual(t, urlA.User, urlB.User)
urlB.Scheme = "https"
assert.NotEqual(t, urlA, urlB)
}
// Make sure copy headers is not shallow and copies all headers.
func TestCopyHeaders(t *testing.T) {
source, destination := make(http.Header), make(http.Header)
source.Add("a", "b")
source.Add("c", "d")
CopyHeaders(destination, source)
assert.Equal(t, "b", destination.Get("a"))
assert.Equal(t, "d", destination.Get("c"))
// make sure that altering source does not affect the destination
source.Del("a")
assert.Equal(t, "", source.Get("a"))
assert.Equal(t, "b", destination.Get("a"))
}
func TestHasHeaders(t *testing.T) {
source := make(http.Header)
source.Add("a", "b")
source.Add("c", "d")
assert.True(t, HasHeaders([]string{"a", "f"}, source))
assert.False(t, HasHeaders([]string{"i", "j"}, source))
}
func TestRemoveHeaders(t *testing.T) {
source := make(http.Header)
source.Add("a", "b")
source.Add("a", "m")
source.Add("c", "d")
RemoveHeaders(source, "a")
assert.Equal(t, "", source.Get("a"))
assert.Equal(t, "d", source.Get("c"))
}
func BenchmarkCopyHeaders(b *testing.B) {
dstHeaders := make([]http.Header, 0, b.N)
sourceHeaders := make([]http.Header, 0, b.N)
for n := 0; n < b.N; n++ {
// example from a reverse proxy merging headers
d := http.Header{}
d.Add("Request-Id", "1bd36bcc-a0d1-4fc7-aedc-20bbdefa27c5")
dstHeaders = append(dstHeaders, d)
s := http.Header{}
s.Add("Content-Length", "374")
s.Add("Context-Type", "text/html; charset=utf-8")
s.Add("Etag", `"op14g6ae"`)
s.Add("Last-Modified", "Wed, 26 Apr 2017 18:24:06 GMT")
s.Add("Server", "Caddy")
s.Add("Date", "Fri, 28 Apr 2017 15:54:01 GMT")
s.Add("Accept-Ranges", "bytes")
sourceHeaders = append(sourceHeaders, s)
}
b.ResetTimer()
for n := 0; n < b.N; n++ {
CopyHeaders(dstHeaders[n], sourceHeaders[n])
}
}
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