package ingestion
import (
"net/http"
"net/http/httptest"
"strings"
"testing"
)
func TestFetchOGImage(t *testing.T) {
cases := []struct {
name string
body string
want string // suffix match
}{
{
name: "og:image property",
body: ``,
want: "https://example.com/lead.jpg",
},
{
name: "content before property",
body: ``,
want: "https://example.com/swap.jpg",
},
{
name: "twitter:image fallback",
body: ``,
want: "https://example.com/twit.jpg",
},
{
name: "relative URL resolved",
body: ``,
want: "/img/lead.jpg",
},
{
name: "no og tags",
body: `nothing`,
want: "",
},
}
for _, c := range cases {
t.Run(c.name, func(t *testing.T) {
srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
w.Header().Set("Content-Type", "text/html")
w.Write([]byte(c.body))
}))
defer srv.Close()
got := FetchOGImage(srv.URL + "/article")
if c.want == "" {
if got != "" {
t.Errorf("expected empty, got %q", got)
}
return
}
if !strings.HasSuffix(got, c.want) {
t.Errorf("got %q, want suffix %q", got, c.want)
}
})
}
}
func TestFirstImgSrc(t *testing.T) {
in := `Body 
more
`
if got := firstImgSrc(in); got != "https://cdn.example.com/lead.png" {
t.Errorf("got %q", got)
}
if got := firstImgSrc(""); got != "" {
t.Errorf("empty input should yield empty, got %q", got)
}
}