/
main_test.go
129 lines (107 loc) · 2.94 KB
/
main_test.go
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package main
import (
"crypto/rand"
"crypto/rsa"
"encoding/json"
"net/http"
"net/http/httptest"
"testing"
"gopkg.in/square/go-jose.v2"
"gopkg.in/square/go-jose.v2/jwt"
)
func TestHandler(t *testing.T) {
testCases := []struct {
name string
subject string
wantStatusCode int
}{
{
name: "has subject",
subject: "testing",
wantStatusCode: http.StatusOK,
},
{
name: "does not have subject",
subject: "",
wantStatusCode: http.StatusBadRequest,
},
}
jwk := generateJWK(t)
testServer := setupTestServer(t, jwk)
defer testServer.Close()
for _, test := range testCases {
t.Run(test.name, func(t *testing.T) {
request, err := http.NewRequest(http.MethodGet, "", nil)
if err != nil {
t.Fatal(err)
}
token := buildJWTForTesting(t, jwk, testServer.URL, test.subject, []string{"my-audience"})
request.Header.Set("Authorization", "Bearer "+token)
responseRecorder := httptest.NewRecorder()
mainHandler := setupHandler(testServer.URL, []string{"my-audience"})
mainHandler.ServeHTTP(responseRecorder, request)
if want, got := test.wantStatusCode, responseRecorder.Code; want != got {
t.Fatalf("wanted status code %d, but got status code %d", want, got)
}
})
}
}
func generateJWK(t *testing.T) *jose.JSONWebKey {
t.Helper()
privateKey, err := rsa.GenerateKey(rand.Reader, 2048)
if err != nil {
t.Fatal("failed to generate private key")
}
return &jose.JSONWebKey{
Key: privateKey,
KeyID: "kid",
Algorithm: string(jose.RS256),
Use: "sig",
}
}
func setupTestServer(t *testing.T, jwk *jose.JSONWebKey) (server *httptest.Server) {
t.Helper()
var handler http.Handler = http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
switch r.URL.String() {
case "/.well-known/openid-configuration":
wk := struct {
JWKSURI string `json:"jwks_uri"`
}{
JWKSURI: server.URL + "/.well-known/jwks.json",
}
if err := json.NewEncoder(w).Encode(wk); err != nil {
t.Fatal(err)
}
case "/.well-known/jwks.json":
if err := json.NewEncoder(w).Encode(jose.JSONWebKeySet{
Keys: []jose.JSONWebKey{jwk.Public()},
}); err != nil {
t.Fatal(err)
}
default:
t.Fatalf("was not expecting to handle the following url: %s", r.URL.String())
}
})
return httptest.NewServer(handler)
}
func buildJWTForTesting(t *testing.T, jwk *jose.JSONWebKey, issuer, subject string, audience []string) string {
t.Helper()
key := jose.SigningKey{
Algorithm: jose.SignatureAlgorithm(jwk.Algorithm),
Key: jwk,
}
signer, err := jose.NewSigner(key, (&jose.SignerOptions{}).WithType("JWT"))
if err != nil {
t.Fatalf("could not build signer: %s", err.Error())
}
claims := jwt.Claims{
Issuer: issuer,
Audience: audience,
Subject: subject,
}
token, err := jwt.Signed(signer).Claims(claims).CompactSerialize()
if err != nil {
t.Fatalf("could not build token: %s", err.Error())
}
return token
}