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ratchet/internal/server/middleware_test.go

78 lines
2.3 KiB
Go

package server
import (
"bytes"
"io"
"net/http"
"net/http/httptest"
"testing"
"git.runcible.io/learning/ratchet/internal/assert"
)
func TestCommonHeadersMiddleware(t *testing.T) {
rr := httptest.NewRecorder()
r, err := http.NewRequest(http.MethodGet, "/", nil)
if err != nil {
t.Fatal(err)
}
// mock http.Handler
next := http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
w.Write([]byte("OK"))
})
// Pass the mock HTTP handler to our commonHeaders middleware. Because
// commonHeaders *returns* a http.Handler we can call its ServeHTTP()
// method, passing in the http.ResponseRecorder and dummy http.Request to
// execute it.
CommonHeaderMiddleware(next).ServeHTTP(rr, r)
resp := rr.Result()
// Check that the middleware has correctly set the Content-Security-Policy
// header on the response.
expectedValue := "default-src 'self'; style-src 'self' fonts.googleapis.com; font-src fonts.gstatic.com"
assert.Equal(t, resp.Header.Get("Content-Security-Policy"), expectedValue)
// Check that the middleware has correctly set the Referrer-Policy
// header on the response.
expectedValue = "origin-when-cross-origin"
assert.Equal(t, resp.Header.Get("Referrer-Policy"), expectedValue)
// Check that the middleware has correctly set the X-Content-Type-Options
// header on the response.
expectedValue = "nosniff"
assert.Equal(t, resp.Header.Get("X-Content-Type-Options"), expectedValue)
// Check that the middleware has correctly set the X-Frame-Options header
// on the response.
expectedValue = "deny"
assert.Equal(t, resp.Header.Get("X-Frame-Options"), expectedValue)
// Check that the middleware has correctly set the X-XSS-Protection header
// on the response
expectedValue = "0"
assert.Equal(t, resp.Header.Get("X-XSS-Protection"), expectedValue)
// Check that the middleware has correctly set the Server header on the
// response.
expectedValue = "Go"
assert.Equal(t, resp.Header.Get("Server"), expectedValue)
// Check that the middleware has correctly called the next handler in line
// and the response status code and body are as expected.
assert.Equal(t, resp.StatusCode, http.StatusOK)
defer resp.Body.Close()
body, err := io.ReadAll(resp.Body)
if err != nil {
t.Fatal(err)
}
body = bytes.TrimSpace(body)
assert.Equal(t, string(body), "OK")
}