Feat: finish login and add test

tests/login_test.go

@@ -0,0 +1,59 @@
+package main
+
+import (
+	"net/http"
+	"net/url"
+	"testing"
+
+	"github.com/go-resty/resty/v2"
+)
+
+type genLoginUrlPayload struct {
+	LoginUrl string `json:"loginUrl"`
+}
+
+type loginPayload struct {
+	Token string `json:"token"`
+}
+
+func TestLogin(t *testing.T) {
+	client := resty.New()
+
+	var payload genLoginUrlPayload
+	resp, err := client.R().
+		SetBody(`{"userId": "testuser1"}`).
+		SetResult(&payload).
+		Post("http://localhost:8080/auth/gen-login-url")
+
+	if err != nil || resp.StatusCode() != http.StatusOK {
+		t.Fatal("failed to get login url")
+	}
+
+	loginUrl, err := url.Parse(payload.LoginUrl)
+	if err != nil {
+		t.Logf("login-url: %s", payload.LoginUrl)
+		t.Fatal("failed to parse login url")
+	}
+
+	resp, err = client.R().
+		SetBody(loginPayload{Token: loginUrl.Query().Get("token")}).
+		Post(loginUrl.Scheme + "://" + loginUrl.Host + loginUrl.Path)
+	if err != nil || resp.StatusCode() != http.StatusOK {
+		t.Fatal("failed to login")
+	}
+
+	for _, rawCookie := range resp.Header()["Set-Cookie"] {
+		cookie, err := http.ParseSetCookie(rawCookie)
+		if err != nil {
+			t.Fatal("failed to parse cookie")
+		}
+
+		if cookie.Name == "refresh_token" {
+			if len(cookie.Value) == 0 {
+				t.Fatal("empty refresh token")
+			}
+			return
+		}
+	}
+	t.Fatal("refresh token not exist")
+}