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test_runner: report error on missing sourcemap source
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avivkeller committed Sep 21, 2024
1 parent 8b8fc53 commit 31ed46d
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6 changes: 6 additions & 0 deletions doc/api/errors.md
Original file line number Diff line number Diff line change
Expand Up @@ -2573,6 +2573,12 @@ disconnected socket.

A call was made and the UDP subsystem was not running.

<a id="ERR_SOURCE_MAP_MISSING_SOURCE"></a>

### `ERR_SOURCE_MAP_MISSING_SOURCE`

A file imported from a source map was not found.

<a id="ERR_SQLITE_ERROR"></a>

### `ERR_SQLITE_ERROR`
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1 change: 1 addition & 0 deletions lib/internal/errors.js
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Expand Up @@ -1704,6 +1704,7 @@ E('ERR_SOCKET_CONNECTION_TIMEOUT',
E('ERR_SOCKET_DGRAM_IS_CONNECTED', 'Already connected', Error);
E('ERR_SOCKET_DGRAM_NOT_CONNECTED', 'Not connected', Error);
E('ERR_SOCKET_DGRAM_NOT_RUNNING', 'Not running', Error);
E('ERR_SOURCE_MAP_MISSING_SOURCE', `Cannot find '%s' imported from the source map for '%s'`, Error);
E('ERR_SRI_PARSE',
'Subresource Integrity string %j had an unexpected %j at position %d',
SyntaxError);
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8 changes: 8 additions & 0 deletions lib/internal/test_runner/coverage.js
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Expand Up @@ -30,6 +30,11 @@ const { tmpdir } = require('os');
const { join, resolve, relative, matchesGlob } = require('path');
const { fileURLToPath } = require('internal/url');
const { kMappings, SourceMap } = require('internal/source_map/source_map');
const {
codes: {
ERR_SOURCE_MAP_MISSING_SOURCE,
},
} = require('internal/errors');
const kCoverageFileRegex = /^coverage-(\d+)-(\d{13})-(\d+)\.json$/;
const kIgnoreRegex = /\/\* node:coverage ignore next (?<count>\d+ )?\*\//;
const kLineEndingRegex = /\r?\n$/u;
Expand Down Expand Up @@ -390,6 +395,9 @@ class TestCoverage {

newUrl ??= startEntry?.originalSource;
const mappedLines = this.getLines(newUrl);
if (!mappedLines) {
throw new ERR_SOURCE_MAP_MISSING_SOURCE(newUrl, url);
}
const mappedStartOffset = this.entryToOffset(startEntry, mappedLines);
const mappedEndOffset = this.entryToOffset(endEntry, mappedLines) + 1;
for (let l = startEntry.originalLine; l <= endEntry.originalLine; l++) {
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2 changes: 2 additions & 0 deletions test/fixtures/test-runner/source-map-missing-sources/index.js

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15 changes: 15 additions & 0 deletions test/parallel/test-runner-coverage.js
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Expand Up @@ -6,6 +6,7 @@ const { readdirSync } = require('node:fs');
const { test } = require('node:test');
const fixtures = require('../common/fixtures');
const tmpdir = require('../common/tmpdir');
const { pathToFileURL } = require('node:url');
const skipIfNoInspector = {
skip: !process.features.inspector ? 'inspector disabled' : false
};
Expand Down Expand Up @@ -320,6 +321,20 @@ test('coverage with source maps', skipIfNoInspector, () => {
assert.strictEqual(result.status, 1);
});

test('coverage with source maps missing sources', skipIfNoInspector, () => {
const file = fixtures.path('test-runner', 'source-map-missing-sources', 'index.js');
const missing = fixtures.path('test-runner', 'source-map-missing-sources', 'nonexistent.js');
const result = spawnSync(process.execPath, [
'--test',
'--experimental-test-coverage',
file,
]);

const error = `Cannot find '${pathToFileURL(missing)}' imported from the source map for '${pathToFileURL(file)}'`;
assert(result.stdout.toString().includes(error));
assert.strictEqual(result.status, 1);
});

test('coverage with ESM hook - source irrelevant', skipIfNoInspector, () => {
let report = [
'# start of coverage report',
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