emulator.emulator.expectscriptfailure
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Emulator.expectScriptFailure() method
Asserts that completing the provided transaction fails with an optional matching error message. Helps validate negative Plutus scenarios.
Signature:
expectScriptFailure(tx: TxBuilder, pattern?: RegExp): Promise<void>;
Parameters
|
Parameter |
Type |
Description |
|---|---|---|
|
tx |
TxBuilder |
Builder expected to fail during completion. |
|
pattern |
RegExp |
(Optional) Optional pattern that the thrown error message must satisfy. |
Returns:
Promise<void>
{Promise