fix: un dépôt est délivré une fois et retiré, comme en amont

packages/polyfill/test/isolation-active.test.ts

@@ -69,6 +69,19 @@ function makeFakeNg() {
   const sparql_update = mock(async (...a: unknown[]) => {
     const query = a[1] as string;
     const anchor = a[2] as string | undefined;
+    // Retiring a DEPOSIT: every triple of one subject, whatever predicates it carries
+    // (`emulated-verifier/inbox-consume.removeDeposit`). Modelled rather than ignored — a
+    // fake that let this delete fall through would leave every deposit in place, and a
+    // suite asserting convergence would pass on a queue that never shrinks.
+    const delDeposit = query.match(/^\s*DELETE\s+WHERE\s*\{\s*<([^>]+)>\s+\?\w+\s+\?\w+\s*\}/);
+    if (delDeposit) {
+      const subject = delDeposit[1]!;
+      for (let i = quads.length - 1; i >= 0; i--) {
+        const q = quads[i]!;
+        if (q.s === subject) quads.splice(i, 1);
+      }
+      return undefined;
+    }
     const gm = query.match(/GRAPH <([^>]+)>\s*\{([\s\S]*)\}/);
     let g: string;
     let body: string;
@@ -135,6 +148,8 @@ function makeFakeNg() {
       for (const q of quads) {
         if (q.g !== anchor) continue;
         const rec = bySubject.get(q.s) ?? {};
+        // The deposit's own subject — the key a drain names to retire it.
+        rec.d = q.s;
         if (q.p === `${INBOX}:payload`) rec.payload = q.o;
         if (q.p === `${INBOX}:ts`) rec.ts = q.o;
         if (q.p === `${INBOX}:from`) rec.from = q.o;
@@ -144,6 +159,7 @@ function makeFakeNg() {
         .filter((r) => r.payload !== undefined && r.ts !== undefined)
         .map((r) => {
           const row: Record<string, { value: string }> = {
+            d: { value: r.d! },
             payload: { value: r.payload! },
             ts: { value: r.ts! },
           };