@tapjs/node-serialize/dist/esm/result-to-error.js

Stream TAP test data as a serialized node:test stream

// turn a tap-parser Result object into an Error
// Put some of the diagnostic info into the error message,
// because that is the string the node --test reporter shows.
import { expandStack, } from '@tapjs/stack';
import { locFromCallSite } from './loc-from-callsite.js';
import { prettyDiff } from './pretty-diff.js';
export const resultToError = (result, test) => {
    const { stack: diagStack, diff: rawDiff, source, passes: _, ...diag } = result.diag || {};
    const at = diag.at ?? test?.options.at;
    const lfa = !!at ? locFromCallSite(at) : undefined;
    const stack = diagStack ||
        (lfa?.file ? `${lfa.file}:${lfa.line}:${lfa.column}` : undefined);
    delete diag.at;
    const diff = prettyDiff(rawDiff);
    if (diff) {
        delete diag.actual;
        delete diag.expected;
        delete diag.found;
        delete diag.wanted;
    }
    else if (result.diag) {
        if ('found' in diag) {
            diag.actual = diag.found;
        }
        if ('wanted' in diag) {
            diag.expected = diag.wanted;
        }
        delete diag.found;
        delete diag.wanted;
    }
    const name = (result.name || result.tapError || 'unnamed test') +
        (diff ? '\n' + diff : '') +
        (source ? '\n| ' + source.trimEnd().split('\n').join('\n| ') : '');
    return Object.assign(new Error(name), {
        ...diag,
        stack: `Error: ${name}\n` + expandStack(stack).trimEnd(),
    });
};
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