fix: clarify ark agent plan model discovery

service/settings_test.go

@@ -0,0 +1,62 @@
+package service
+
+import (
+	"net/http"
+	"net/http/httptest"
+	"reflect"
+	"strings"
+	"testing"
+
+	"github.com/basketikun/infinite-canvas/model"
+)
+
+func TestFetchAdminChannelModelsParsesOpenAIModels(t *testing.T) {
+	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		if r.URL.Path != "/v1/models" {
+			t.Fatalf("unexpected path: %s", r.URL.Path)
+		}
+		w.Header().Set("Content-Type", "application/json")
+		_, _ = w.Write([]byte(`{"data":[{"id":"z-model"},{"id":"a-model"},{"id":""}]}`))
+	}))
+	defer server.Close()
+
+	models, err := fetchAdminChannelModels(model.ModelChannel{
+		BaseURL: server.URL,
+		APIKey:  "test-key",
+	})
+	if err != nil {
+		t.Fatalf("fetchAdminChannelModels returned error: %v", err)
+	}
+	if want := []string{"a-model", "z-model"}; !reflect.DeepEqual(models, want) {
+		t.Fatalf("models = %#v, want %#v", models, want)
+	}
+}
+
+func TestFetchAdminChannelModelsReportsArkPlanModelsUnsupported(t *testing.T) {
+	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		if r.URL.Path != "/api/plan/v3/models" {
+			t.Fatalf("unexpected path: %s", r.URL.Path)
+		}
+		http.NotFound(w, r)
+	}))
+	defer server.Close()
+
+	_, err := fetchAdminChannelModels(model.ModelChannel{
+		BaseURL: server.URL + "/api/plan/v3/contents/generations/tasks",
+		APIKey:  "test-key",
+	})
+	if err == nil {
+		t.Fatal("expected unsupported /models error")
+	}
+	if !strings.Contains(err.Error(), "Agent Plan 未提供 OpenAI /models") {
+		t.Fatalf("error = %q", err.Error())
+	}
+}
+
+func TestBuildModelChannelURLNormalizesArkPlanTaskPath(t *testing.T) {
+	got := BuildModelChannelURL(model.ModelChannel{BaseURL: "https://ark.cn-beijing.volces.com/api/plan/v3/contents/generations/tasks?debug=1"}, "/models")
+	want := "https://ark.cn-beijing.volces.com/api/plan/v3/models"
+	if got != want {
+		t.Fatalf("BuildModelChannelURL = %q, want %q", got, want)
+	}
+}