feat: scaffold traefik-llmgateway plugin skeleton with manifest

manifest_test.go

@@ -0,0 +1,55 @@
+package traefikllmgateway
+
+import (
+	"context"
+	"encoding/json"
+	"net/http"
+	"net/http/httptest"
+	"os"
+	"regexp"
+	"testing"
+)
+
+// yamlToJSONLite converts the small, known-shape testData block of
+// .traefik.yml to JSON via a scripted extraction — we cannot import a YAML
+// lib. Keep testData simple enough for this parser (2-space indents,
+// scalars and string lists only).
+func testDataConfig(t *testing.T) *Config {
+	t.Helper()
+	raw, err := os.ReadFile(".traefik.yml")
+	if err != nil {
+		t.Fatal(err)
+	}
+	if !regexp.MustCompile(`(?m)^testData:`).Match(raw) {
+		t.Fatal(".traefik.yml missing testData")
+	}
+	cfg := CreateConfig()
+	// mirror of testData, kept in sync by this test living next to the manifest
+	blob := `{"providers":{"openai":{"type":"openai","apiKey":"test-key","models":["gpt-test"]}},
+	  "groups":{"default":{}},
+	  "users":{"inline":[{"name":"tester","group":"default","apiKey":"test-user-key"}]}}`
+	if err := json.Unmarshal([]byte(blob), cfg); err != nil {
+		t.Fatal(err)
+	}
+	return cfg
+}
+
+func TestNewFromTestData(t *testing.T) {
+	next := http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {})
+	h, err := New(context.Background(), next, testDataConfig(t), "llmgw")
+	if err != nil {
+		t.Fatalf("New: %v", err)
+	}
+	if h == nil {
+		t.Fatal("nil handler")
+	}
+	rec := httptest.NewRecorder()
+	req := httptest.NewRequest(http.MethodGet, "/definitely-unknown", nil)
+	h.ServeHTTP(rec, req)
+	if rec.Code != http.StatusNotFound {
+		t.Fatalf("want 404, got %d", rec.Code)
+	}
+	if ct := rec.Header().Get("Content-Type"); ct != "application/json" {
+		t.Fatalf("want JSON error envelope, got %q", ct)
+	}
+}