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openzeppelin-contracts/test/helpers/expectThrow.js

20 lines
766 B

export default async promise => {
try {
await promise;
} catch (error) {
// TODO: Check jump destination to destinguish between a throw
// and an actual invalid jump.
const invalidJump = error.message.search('invalid JUMP') >= 0;
// TODO: When we contract A calls contract B, and B throws, instead
// of an 'invalid jump', we get an 'out of gas' error. How do
// we distinguish this from an actual out of gas event? (The
// testrpc log actually show an 'invalid jump' event.)
const outOfGas = error.message.search('out of gas') >= 0;
assert(
invalidJump || outOfGas,
"Expected throw, got '" + error + "' instead",
);
return;
}
assert.fail('Expected throw not received');
};