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Mint: invalidate and generate promises in single db transaction for split (#374)

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* test for spending output again

* first gernerate (which can fail) then invalidate (db and memory)

* use external get_db_connection function to be compatible with existing Database class in LNbits
This commit is contained in:
callebtc
2023-12-02 22:54:28 +01:00
committed by GitHub
parent 0ec3af9bf1
commit 34a2e7e5da
4 changed files with 75 additions and 36 deletions
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32
tests/test_mint_operations.py
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@@ -123,6 +123,38 @@ async def test_split_with_input_more_than_outputs(wallet1: Wallet, ledger: Ledge
print(keep_proofs, send_proofs)
@pytest.mark.asyncio
async def test_split_twice_with_same_outputs(wallet1: Wallet, ledger: Ledger):
invoice = await wallet1.request_mint(128)
pay_if_regtest(invoice.bolt11)
await wallet1.mint(128, [64, 64], id=invoice.id)
inputs1 = wallet1.proofs[:1]
inputs2 = wallet1.proofs[1:]
output_amounts = [64]
secrets, rs, derivation_paths = await wallet1.generate_n_secrets(
len(output_amounts)
)
outputs, rs = wallet1._construct_outputs(output_amounts, secrets, rs)
await ledger.split(proofs=inputs1, outputs=outputs)
# try to spend other proofs with the same outputs again
await assert_err(
ledger.split(proofs=inputs2, outputs=outputs),
"UNIQUE constraint failed: promises.B_b",
)
# try to spend inputs2 again with new outputs
output_amounts = [64]
secrets, rs, derivation_paths = await wallet1.generate_n_secrets(
len(output_amounts)
)
outputs, rs = wallet1._construct_outputs(output_amounts, secrets, rs)
await ledger.split(proofs=inputs2, outputs=outputs)
@pytest.mark.asyncio
async def test_check_proof_state(wallet1: Wallet, ledger: Ledger):
invoice = await wallet1.request_mint(64)