v0.342.0 (unreleased): the upload watch reads the host's weekly line test (GET /host/line-test, agent >= 0.164.0); qBittorrent's limit = 50 % of the TESTED line only (D41), the watch uses the higher of test and push floor, the system page names the source; red-proved

controller/internal/agentapi/linetest_test.go

@@ -0,0 +1,36 @@
+package agentapi
+
+import (
+	"context"
+	"errors"
+	"net/http"
+	"net/http/httptest"
+	"strings"
+	"testing"
+	"time"
+)
+
+// R-1247: GET /host/line-test decodes the agent's weekly line test, and an agent before the route is a typed 404 (the
+// controller reads it as „not measured" → no qBittorrent limit).
+func TestLineTestDecodesAndAnOlderAgentIs404(t *testing.T) {
+	mux := http.NewServeMux()
+	mux.HandleFunc("GET /host/line-test", func(w http.ResponseWriter, r *http.Request) {
+		_, _ = w.Write([]byte(`{"ok":true,"data":{"present":true,"mbps":90.7,"measured_at":"2026-10-24T06:31:00Z","method":"iperf3-tunnel"}}`))
+	})
+	s := httptest.NewTLSServer(mux)
+	defer s.Close()
+	st, err := clientFor(t, s, strings.TrimPrefix(s.URL, "https://")).LineTest(context.Background())
+	if err != nil {
+		t.Fatal(err)
+	}
+	if !st.Present || st.Mbps != 90.7 || !st.MeasuredAtTime().Equal(time.Date(2026, 10, 24, 6, 31, 0, 0, time.UTC)) {
+		t.Fatalf("state = %+v", st)
+	}
+	old := httptest.NewTLSServer(http.NewServeMux())
+	defer old.Close()
+	_, err = clientFor(t, old, strings.TrimPrefix(old.URL, "https://")).LineTest(context.Background())
+	var se *StatusError
+	if !errors.As(err, &se) || se.Code != http.StatusNotFound {
+		t.Fatalf("an older agent must answer a typed 404, got %v", err)
+	}
+}