fix: expose client fetch and signed adjustments

2026-08-23 18:56:05 +05:30
parent 6258495b67
commit 4be4b2c346
8 changed files with 64 additions and 8 deletions
@@ -40,3 +40,27 @@ test("meter distinguishes refusals from storage faults", async () => {
    fault: true,
  });
 });
+
+test("adjust accepts signed non-zero amounts while other additions stay positive", async () => {
+  const writes: number[] = [];
+  const meter = defineMeter({
+    store: {
+      balance: async () => 0,
+      reserve: async () => true,
+      write: async (_subject, units) => {
+        writes.push(units);
+      },
+    },
+  });
+  expect(await meter.adjust("u1", -25, "correction")).toEqual({ ok: true });
+  expect(await meter.adjust("u1", 10, "correction")).toEqual({ ok: true });
+  expect(await meter.adjust("u1", 0, "correction")).toEqual({
+    ok: false,
+    reason: "units adjustment must be a non-zero whole number",
+  });
+  expect(await meter.grant("u1", -1, "invalid")).toEqual({
+    ok: false,
+    reason: "units must be a positive whole number",
+  });
+  expect(writes).toEqual([-25, 10]);
+});