Upload Kmake

test/parallel/test-runner-cli-concurrency.js

@@ -0,0 +1,40 @@
+'use strict';
+require('../common');
+const fixtures = require('../common/fixtures');
+const assert = require('node:assert');
+const { spawnSync } = require('node:child_process');
+const { test } = require('node:test');
+const cwd = fixtures.path('test-runner', 'default-behavior');
+const env = { ...process.env, 'NODE_DEBUG': 'test_runner' };
+
+test('default concurrency', async () => {
+  const args = ['--test'];
+  const cp = spawnSync(process.execPath, args, { cwd, env });
+  assert.match(cp.stderr.toString(), /concurrency: true,/);
+});
+
+test('concurrency of one', async () => {
+  const args = ['--test', '--test-concurrency=1'];
+  const cp = spawnSync(process.execPath, args, { cwd, env });
+  assert.match(cp.stderr.toString(), /concurrency: 1,/);
+});
+
+test('concurrency of two', async () => {
+  const args = ['--test', '--test-concurrency=2'];
+  const cp = spawnSync(process.execPath, args, { cwd, env });
+  assert.match(cp.stderr.toString(), /concurrency: 2,/);
+});
+
+test('isolation=none uses a concurrency of one', async () => {
+  const args = ['--test', '--test-isolation=none'];
+  const cp = spawnSync(process.execPath, args, { cwd, env });
+  assert.match(cp.stderr.toString(), /concurrency: 1,/);
+});
+
+test('isolation=none overrides --test-concurrency', async () => {
+  const args = [
+    '--test', '--test-isolation=none', '--test-concurrency=2',
+  ];
+  const cp = spawnSync(process.execPath, args, { cwd, env });
+  assert.match(cp.stderr.toString(), /concurrency: 1,/);
+});