package fa
import (
"context"
"fmt"
"net/http"
"net/http/httptest"
"strings"
"sync/atomic"
"testing"
)
// fakeGalleryPage builds a minimal gallery-page response with two figures.
// hasNext controls whether the "Next" anchor is included so detectNextPage
// flips.
func fakeGalleryPage(startID int, hasNext bool) string {
var b strings.Builder
b.WriteString(``)
for i := 0; i < 2; i++ {
id := startID + i
fmt.Fprintf(&b, `
Sub %d
someartist
`, id, id, id, id, id)
}
if hasNext {
b.WriteString(`Next `)
}
b.WriteString(``)
return b.String()
}
func TestGalleryPage_HasNextPropagates(t *testing.T) {
var requests atomic.Int32
mux := http.NewServeMux()
mux.HandleFunc("/gallery/u/", func(w http.ResponseWriter, _ *http.Request) {
requests.Add(1)
_, _ = w.Write([]byte(fakeGalleryPage(1000, true)))
})
mux.HandleFunc("/gallery/u/2/", func(w http.ResponseWriter, _ *http.Request) {
requests.Add(1)
_, _ = w.Write([]byte(fakeGalleryPage(2000, false)))
})
srv := httptest.NewServer(mux)
defer srv.Close()
client := newE2EClient(t, srv)
first, err := client.GalleryPage(context.Background(), "u", 1)
if err != nil {
t.Fatalf("GalleryPage(1): %v", err)
}
if first.Page != 1 {
t.Errorf("first.Page = %d; want 1", first.Page)
}
if !first.HasNext {
t.Error("first.HasNext = false; want true")
}
if len(first.Items) != 2 {
t.Fatalf("first.Items len = %d; want 2", len(first.Items))
}
if first.Items[0].ID != 1000 {
t.Errorf("first.Items[0].ID = %d; want 1000", first.Items[0].ID)
}
// data-tags routed through to the page method too.
if len(first.Items[0].Tags) == 0 || len(first.Items[0].CategorizedTags.Species) == 0 {
t.Errorf("first.Items[0]: tags not populated from data-tags: %+v", first.Items[0])
}
last, err := client.GalleryPage(context.Background(), "u", 2)
if err != nil {
t.Fatalf("GalleryPage(2): %v", err)
}
if last.HasNext {
t.Error("last.HasNext = true; want false (last page)")
}
if last.Page != 2 {
t.Errorf("last.Page = %d; want 2", last.Page)
}
if requests.Load() != 2 {
t.Errorf("requests = %d; want 2", requests.Load())
}
}
func TestGalleryPage_ZeroPageDefaultsToOne(t *testing.T) {
mux := http.NewServeMux()
mux.HandleFunc("/gallery/u/", func(w http.ResponseWriter, _ *http.Request) {
_, _ = w.Write([]byte(fakeGalleryPage(1, false)))
})
srv := httptest.NewServer(mux)
defer srv.Close()
client := newE2EClient(t, srv)
page, err := client.GalleryPage(context.Background(), "u", 0)
if err != nil {
t.Fatalf("GalleryPage(0): %v", err)
}
if page.Page != 1 {
t.Errorf("page.Page = %d; want 1 (zero should normalise)", page.Page)
}
}
func TestScrapsPage_HitsScrapsRoute(t *testing.T) {
var gotPath string
mux := http.NewServeMux()
mux.HandleFunc("/scraps/u/", func(w http.ResponseWriter, r *http.Request) {
gotPath = r.URL.Path
_, _ = w.Write([]byte(fakeGalleryPage(1, false)))
})
srv := httptest.NewServer(mux)
defer srv.Close()
client := newE2EClient(t, srv)
if _, err := client.ScrapsPage(context.Background(), "u", 1); err != nil {
t.Fatalf("ScrapsPage: %v", err)
}
if gotPath != "/scraps/u/" {
t.Errorf("gotPath = %q; want /scraps/u/", gotPath)
}
}
func TestFavoritesPage_HitsFavoritesRoute(t *testing.T) {
var gotPath string
mux := http.NewServeMux()
mux.HandleFunc("/favorites/u/", func(w http.ResponseWriter, r *http.Request) {
gotPath = r.URL.Path
_, _ = w.Write([]byte(fakeGalleryPage(1, true)))
})
srv := httptest.NewServer(mux)
defer srv.Close()
client := newE2EClient(t, srv)
p, err := client.FavoritesPage(context.Background(), "u", 1)
if err != nil {
t.Fatalf("FavoritesPage: %v", err)
}
if gotPath != "/favorites/u/" {
t.Errorf("gotPath = %q; want /favorites/u/", gotPath)
}
if !p.HasNext {
t.Error("p.HasNext = false; want true")
}
}
