api/sunset_test.go
Virgil 9449c195c3 fix(api): preserve existing link headers in sunset middleware
Co-Authored-By: Virgil <virgil@lethean.io>
2026-04-01 23:29:12 +00:00

93 lines
2.7 KiB
Go

// SPDX-License-Identifier: EUPL-1.2
package api_test
import (
"net/http"
"net/http/httptest"
"testing"
"github.com/gin-gonic/gin"
api "dappco.re/go/core/api"
)
type sunsetStubGroup struct{}
func (sunsetStubGroup) Name() string { return "legacy" }
func (sunsetStubGroup) BasePath() string { return "/legacy" }
func (sunsetStubGroup) RegisterRoutes(rg *gin.RouterGroup) {
rg.GET("/status", func(c *gin.Context) {
c.JSON(http.StatusOK, api.OK("ok"))
})
}
type sunsetLinkStubGroup struct{}
func (sunsetLinkStubGroup) Name() string { return "legacy-link" }
func (sunsetLinkStubGroup) BasePath() string { return "/legacy-link" }
func (sunsetLinkStubGroup) RegisterRoutes(rg *gin.RouterGroup) {
rg.GET("/status", func(c *gin.Context) {
c.Header("Link", "<https://example.com/docs>; rel=\"help\"")
c.JSON(http.StatusOK, api.OK("ok"))
})
}
func TestWithSunset_Good_AddsDeprecationHeaders(t *testing.T) {
gin.SetMode(gin.TestMode)
e, err := api.New(api.WithSunset("2025-06-01", "/api/v2/status"))
if err != nil {
t.Fatalf("unexpected error: %v", err)
}
e.Register(sunsetStubGroup{})
w := httptest.NewRecorder()
req, _ := http.NewRequest(http.MethodGet, "/legacy/status", nil)
e.Handler().ServeHTTP(w, req)
if w.Code != http.StatusOK {
t.Fatalf("expected 200, got %d", w.Code)
}
if got := w.Header().Get("Deprecation"); got != "true" {
t.Fatalf("expected Deprecation=true, got %q", got)
}
if got := w.Header().Get("Sunset"); got != "Sun, 01 Jun 2025 00:00:00 GMT" {
t.Fatalf("expected formatted Sunset header, got %q", got)
}
if got := w.Header().Get("Link"); got != "</api/v2/status>; rel=\"successor-version\"" {
t.Fatalf("expected successor Link header, got %q", got)
}
if got := w.Header().Get("X-API-Warn"); got != "This endpoint is deprecated and will be removed on 2025-06-01." {
t.Fatalf("expected deprecation warning, got %q", got)
}
}
func TestWithSunset_Good_PreservesExistingLinkHeaders(t *testing.T) {
gin.SetMode(gin.TestMode)
e, err := api.New(api.WithSunset("2025-06-01", "/api/v2/status"))
if err != nil {
t.Fatalf("unexpected error: %v", err)
}
e.Register(sunsetLinkStubGroup{})
w := httptest.NewRecorder()
req, _ := http.NewRequest(http.MethodGet, "/legacy-link/status", nil)
e.Handler().ServeHTTP(w, req)
if w.Code != http.StatusOK {
t.Fatalf("expected 200, got %d", w.Code)
}
links := w.Header().Values("Link")
if len(links) != 2 {
t.Fatalf("expected 2 Link header values, got %v", links)
}
if links[0] != "<https://example.com/docs>; rel=\"help\"" {
t.Fatalf("expected existing Link header to be preserved first, got %q", links[0])
}
if links[1] != "</api/v2/status>; rel=\"successor-version\"" {
t.Fatalf("expected successor Link header to be appended, got %q", links[1])
}
}