feat: add BVK exchange library

handler_test.go

@@ -0,0 +1,66 @@
+package mila
+
+import (
+	"encoding/json"
+	"net/http"
+	"net/http/httptest"
+	"net/url"
+	"testing"
+)
+
+func TestHandlerSetAndGetContent(t *testing.T) {
+	handler := NewHandler(DefaultConfig(), NewMemoryStore())
+
+	params := url.Values{}
+	params.Set("route", "3")
+	params.Set("str", "Гостиный двор - Gostiny dvor")
+	params.Set("tpl_name", "Гостиный двор")
+
+	req := httptest.NewRequest(http.MethodGet, "/set-content?"+params.Encode(), nil)
+	rec := httptest.NewRecorder()
+	handler.ServeHTTP(rec, req)
+
+	if rec.Code != http.StatusOK {
+		t.Fatalf("set-content status=%d body=%s", rec.Code, rec.Body.String())
+	}
+
+	req = httptest.NewRequest(http.MethodGet, "/get-content", nil)
+	rec = httptest.NewRecorder()
+	handler.ServeHTTP(rec, req)
+
+	if rec.Code != http.StatusOK {
+		t.Fatalf("get-content status=%d body=%s", rec.Code, rec.Body.String())
+	}
+
+	var state ContentState
+	if err := json.NewDecoder(rec.Body).Decode(&state); err != nil {
+		t.Fatalf("decode response: %v", err)
+	}
+	if state.Route != "3" || state.Text != "Гостиный двор - Gostiny dvor" || state.Template != "Гостиный двор" {
+		t.Fatalf("unexpected state: %+v", state)
+	}
+}
+
+func TestHandlerGetBeforeSetReturns503(t *testing.T) {
+	handler := NewHandler(DefaultConfig(), NewMemoryStore())
+
+	req := httptest.NewRequest(http.MethodGet, "/get-content", nil)
+	rec := httptest.NewRecorder()
+	handler.ServeHTTP(rec, req)
+
+	if rec.Code != http.StatusServiceUnavailable {
+		t.Fatalf("status=%d body=%s", rec.Code, rec.Body.String())
+	}
+}
+
+func TestHandlerRejectsInvalidSetContent(t *testing.T) {
+	handler := NewHandler(DefaultConfig(), NewMemoryStore())
+
+	req := httptest.NewRequest(http.MethodGet, "/set-content?route=1234&str=ok&tpl_name=tpl", nil)
+	rec := httptest.NewRecorder()
+	handler.ServeHTTP(rec, req)
+
+	if rec.Code != http.StatusBadRequest {
+		t.Fatalf("status=%d body=%s", rec.Code, rec.Body.String())
+	}
+}