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Observe nextMetaId across a multi-event, multi-board matchstick run #289

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Observe nextMetaId across a multi-event, multi-board matchstick run #289

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72bfee3
Observe nextMetaId across a multi-event, multi-board matchstick run
Aug 25, 2026
084f784
Merge main into the nextMetaId counter tests
Aug 26, 2026
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93 changes: 93 additions & 0 deletions subgraph/tests/metaBoard.test.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -11,6 +11,7 @@ import {
} from "matchstick-as";
import {
createNewMetaV1Event,
handleNewMetaV1Events,
CONTRACT_ADDRESS,
OTHER_CONTRACT_ADDRESS,
} from "./utils";
Expand Down Expand Up @@ -391,3 +392,95 @@ describe("Test MetaV1 ids are scoped to their metaboard", () => {
assert.bigIntEquals(board.nextMetaId, BigInt.fromI32(2));
});
});

const firstCounterTransactionHash =
"0x1111111111111111111111111111111111111111111111111111111111111111";
const secondCounterTransactionHash =
"0x2222222222222222222222222222222222222222222222222222222222222222";
const thirdCounterTransactionHash =
"0x3333333333333333333333333333333333333333333333333333333333333333";

describe("Test MetaBoard nextMetaId counter", () => {
afterEach(() => {
clearStore();
clearInBlockStore();
});

test("nextMetaId counts one per meta the board has seen", () => {
handleNewMetaV1Events([
createNewMetaV1Event(
CONTRACT_ADDRESS,
sender,
subject,
Bytes.fromHexString(metaString),
firstCounterTransactionHash,
transactionBlockNumber,
transactionTimestamp,
),
createNewMetaV1Event(
CONTRACT_ADDRESS,
sender,
subject,
Bytes.fromHexString(metaString),
secondCounterTransactionHash,
transactionBlockNumber,
transactionTimestamp,
),
createNewMetaV1Event(
CONTRACT_ADDRESS,
sender,
subject,
Bytes.fromHexString(metaString),
thirdCounterTransactionHash,
transactionBlockNumber,
transactionTimestamp,
),
]);

assert.entityCount(ENTITY_TYPE_META_BOARD, 1);
assert.entityCount(ENTITY_TYPE_META_V1, 3);

const board = MetaBoard.load(CONTRACT_ADDRESS) as MetaBoard;
assert.bigIntEquals(board.nextMetaId, BigInt.fromI32(3));
});

// Cross-board MetaV1 identity is #206's; this asserts only the counters.
test("Each metaboard counts only its own metas", () => {
handleNewMetaV1Events([
createNewMetaV1Event(
CONTRACT_ADDRESS,
sender,
subject,
Bytes.fromHexString(metaString),
firstCounterTransactionHash,
transactionBlockNumber,
transactionTimestamp,
),
createNewMetaV1Event(
OTHER_CONTRACT_ADDRESS,
sender,
subject,
Bytes.fromHexString(metaString),
secondCounterTransactionHash,
transactionBlockNumber,
transactionTimestamp,
),
createNewMetaV1Event(
CONTRACT_ADDRESS,
sender,
subject,
Bytes.fromHexString(metaString),
thirdCounterTransactionHash,
transactionBlockNumber,
transactionTimestamp,
),
]);

assert.entityCount(ENTITY_TYPE_META_BOARD, 2);

const board = MetaBoard.load(CONTRACT_ADDRESS) as MetaBoard;
const otherBoard = MetaBoard.load(OTHER_CONTRACT_ADDRESS) as MetaBoard;
assert.bigIntEquals(board.nextMetaId, BigInt.fromI32(2));
assert.bigIntEquals(otherBoard.nextMetaId, BigInt.fromI32(1));
});
});
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