R-1199 reopened: a box with no list of its own reads the household's from the hub and adopts it, pushes its default once only when no household saved one; every push names its source; an empty saved list stays empty; R-1216 (D28 = A): the install page's swap sentence only when host swap is really short (shared case table); unreleased

controller/internal/web/r1192_swap_short_test.go

@@ -1,6 +1,8 @@
 package web
 
 import (
+	"encoding/json"
+	"os"
 	"testing"
 
 	"gitea.dooplex.hu/admin/felhom-controller/internal/agentapi"
@@ -26,3 +28,39 @@ func TestR1192_SwapShortJudgesTheHostSwapAgainstTheGuestRAM(t *testing.T) {
 		}
 	}
 }
+
+// R-1216 / D28 = A: the shared case table (byte-identical in felhom.eu hub/internal/api/testdata/, checked by felhom.eu
+// scripts/host_swap_rule_gate.py), plus the page's own input: a 12 GB guest on an 8 GB-swap host (demo-felhom) is NOT
+// short; the guest's RAM stands in when the agent sends no guest_swap_mb.
+// RED-PROOF: with the morning's rule (`host < the guest's RAM`) the demo-hp, demo-felhom and 32 GB rows fail — seen
+// failing 2026-10-22.
+func TestR1216_HostSwapRuleCases(t *testing.T) {
+	b, err := os.ReadFile("testdata/host_swap_rule_cases.json")
+	if err != nil {
+		t.Fatal(err)
+	}
+	var f struct {
+		Cases []struct {
+			Name  string `json:"name"`
+			Host  int64  `json:"host_swap_mb"`
+			Guest int64  `json:"guest_swap_mb"`
+			Short bool   `json:"short"`
+		} `json:"cases"`
+	}
+	if err := json.Unmarshal(b, &f); err != nil || len(f.Cases) < 10 {
+		t.Fatalf("case table: %v (%d cases)", err, len(f.Cases))
+	}
+	mb := func(v int64) *int64 { return &v }
+	for _, c := range f.Cases {
+		if got := hostSwapRuleShort(c.Host, c.Guest); got != c.Short {
+			t.Errorf("%s: host %d / guests %d → short=%t, want %t", c.Name, c.Host, c.Guest, got, c.Short)
+		}
+		// Through the page's own input, the agent's answer.
+		if got := swapShort(agentapi.GuestMemoryInfo{AllocatedMB: c.Guest, HostSwapMB: mb(c.Host), GuestSwapMB: mb(c.Guest)}); got != c.Short {
+			t.Errorf("%s (page input): short=%t, want %t", c.Name, got, c.Short)
+		}
+	}
+	if swapShort(agentapi.GuestMemoryInfo{AllocatedMB: 12288, HostSwapMB: mb(8191)}) {
+		t.Error("demo-felhom without guest_swap_mb (the guest's RAM stands in) must not be short")
+	}
+}