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assert: fix actual & expected input #19925

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assert: fix actual & expected input #19925

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6 changes: 3 additions & 3 deletions lib/assert.js
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Original file line number Diff line number Diff line change
Expand Up @@ -471,7 +471,7 @@ function expectsError(stackStartFn, actual, error, message) {
error);
}
message = error;
error = null;
error = undefined;
}

if (actual === NO_EXCEPTION_SENTINEL) {
Expand All @@ -482,7 +482,7 @@ function expectsError(stackStartFn, actual, error, message) {
details += message ? `: ${message}` : '.';
const fnType = stackStartFn === rejects ? 'rejection' : 'exception';
innerFail({
actual,
actual: undefined,
expected: error,
operator: stackStartFn.name,
message: `Missing expected ${fnType}${details}`,
Expand All @@ -500,7 +500,7 @@ function expectsNoError(stackStartFn, actual, error, message) {

if (typeof error === 'string') {
message = error;
error = null;
error = undefined;
}

if (!error || expectedException(actual, error)) {
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34 changes: 21 additions & 13 deletions test/parallel/test-assert.js
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Original file line number Diff line number Diff line change
Expand Up @@ -199,32 +199,40 @@ a.throws(() => thrower(TypeError), (err) => {
const noop = () => {};
assert.throws(
() => { a.throws((noop)); },
common.expectsError({
{
code: 'ERR_ASSERTION',
message: /^Missing expected exception\.$/,
operator: 'throws'
}));
message: 'Missing expected exception.',
operator: 'throws',
actual: undefined,
expected: undefined
});

assert.throws(
() => { a.throws(noop, TypeError); },
common.expectsError({
{
code: 'ERR_ASSERTION',
message: /^Missing expected exception \(TypeError\)\.$/
}));
message: 'Missing expected exception (TypeError).',
actual: undefined,
expected: TypeError
});

assert.throws(
() => { a.throws(noop, 'fhqwhgads'); },
common.expectsError({
{
code: 'ERR_ASSERTION',
message: /^Missing expected exception: fhqwhgads$/
}));
message: 'Missing expected exception: fhqwhgads',
actual: undefined,
expected: undefined
});

assert.throws(
() => { a.throws(noop, TypeError, 'fhqwhgads'); },
common.expectsError({
{
code: 'ERR_ASSERTION',
message: /^Missing expected exception \(TypeError\): fhqwhgads$/
}));
message: 'Missing expected exception (TypeError): fhqwhgads',
actual: undefined,
expected: TypeError
});

let threw = false;
try {
Expand Down