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ava.config.cjs
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ava.config.cjs
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const expect = require('expect');
const semver = require('semver');
const { createRequire } = require('module');
module.exports = {
files: ['dist/test/**/*.spec.js'],
failWithoutAssertions: false,
environmentVariables: {
ts_node_install_lock: `id-${Math.floor(Math.random() * 10e9)}`,
// Force jest expect() errors to generate colorized strings, makes output more readable.
// Delete the env var within ava processes via `require` option below.
// This avoids passing it to spawned processes under test, which would negatively affect
// their behavior.
FORCE_COLOR: '3',
NODE_PATH: '',
CONCURRENT_TESTS: '4'
},
require: ['./src/test/remove-env-var-force-color.js'],
nodeArguments: ['--loader', './src/test/test-loader.mjs', '--no-warnings'],
timeout: '300s',
concurrency: 4,
// We do chdir -- maybe other things -- that you can't do in worker_threads.
workerThreads: false,
};
{
/*
* Tests *must* install and use our most recent ts-node tarball.
* We must prevent them from accidentally require-ing a different version of
* ts-node, from either node_modules or tests/node_modules.
*
* Another possibility of interference is NODE_PATH environment variable being set,
* and ts-node being installed in any of the paths listed on NODE_PATH, to fix this,
* the NODE_PATH variable must be removed from the environment *BEFORE* running ava.
* An error will be thrown when trying to run tests with NODE_PATH set to paths with ts-node installed.
*/
const { existsSync, rmSync } = require('fs');
const rimraf = require('rimraf');
const { resolve } = require('path');
remove(resolve(__dirname, 'node_modules/ts-node'));
remove(resolve(__dirname, 'tests/node_modules/ts-node'));
// Prove that we did it correctly
(() => {
let resolved;
try {
resolved = createRequire(resolve(__dirname, 'tests/foo.js')).resolve('ts-node');
} catch(err) {return}
// require.resolve() found ts-node; this should not happen.
let errorMessage = `require.resolve('ts-node') unexpectedly resolved to ${resolved}\n`;
// Check for NODE_PATH interference. See comments above.
if(process.env.NODE_PATH) {
errorMessage += `NODE_PATH environment variable is set. This test suite does not support running with NODE_PATH. Unset it before running the tests.`;
}
throw new Error(errorMessage);
})();
function remove(p) {
// Avoid node deprecation warning triggered by rimraf
if(existsSync(p)) (rmSync || rimraf.sync)(p, {recursive: true})
}
}