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'use strict';
// This test is to ensure that --diagnostic-dir does not change the directory
// for --cpu-prof when --cpu-prof-dir is specified
const common = require('../common');
const fixtures = require('../common/fixtures');
common.skipIfInspectorDisabled();
const assert = require('assert');
const fs = require('fs');
const path = require('path');
const { spawnSync } = require('child_process');
const tmpdir = require('../common/tmpdir');
function findFirstFrameInNode(root, func) {
const first = root.children.find(
(child) => child.callFrame.functionName === func
);
if (first) {
return first;
}
for (const child of root.children) {
const first = findFirstFrameInNode(child, func);
if (first) {
return first;
}
}
return undefined;
}
function findFirstFrame(file, func) {
const data = fs.readFileSync(file, 'utf8');
const profile = JSON.parse(data);
const first = findFirstFrameInNode(profile.head, func);
return { frame: first, roots: profile.head.children };
}
function verifyFrames(output, file, func) {
const { frame, roots } = findFirstFrame(file, func);
if (!frame) {
// Show native debug output and the profile for debugging.
console.log(output.stderr.toString());
console.log(roots);
}
assert.notStrictEqual(frame, undefined);
}
const kHeapProfInterval = 128;
const TEST_ALLOCATION = kHeapProfInterval * 2;
const env = {
...process.env,
TEST_ALLOCATION,
NODE_DEBUG_NATIVE: 'INSPECTOR_PROFILER'
};
function getHeapProfiles(dir) {
const list = fs.readdirSync(dir);
return list
.filter((file) => file.endsWith('.heapprofile'))
.map((file) => path.join(dir, file));
}
// Test --diagnostic-dir changes the default for --cpu-prof
{
tmpdir.refresh();
const dir = tmpdir.resolve('prof');
const output = spawnSync(process.execPath, [
'--heap-prof',
'--diagnostic-dir',
dir,
'--heap-prof-interval',
kHeapProfInterval,
fixtures.path('workload', 'allocation.js'),
], {
cwd: tmpdir.path,
env
});
if (output.status !== 0) {
console.log(output.stderr.toString());
}
assert.strictEqual(output.status, 0);
assert(fs.existsSync(dir));
const profiles = getHeapProfiles(dir);
assert.strictEqual(profiles.length, 1);
verifyFrames(output, profiles[0], 'runAllocation');
}
// Test --heap-prof-dir overwrites --diagnostic-dir
{
tmpdir.refresh();
const dir = tmpdir.resolve('diag');
const dir2 = tmpdir.resolve('prof');
const output = spawnSync(process.execPath, [
'--heap-prof',
'--heap-prof-interval',
kHeapProfInterval,
'--diagnostic-dir',
dir,
'--heap-prof-dir',
dir2,
fixtures.path('workload', 'allocation.js'),
], {
cwd: tmpdir.path,
env
});
if (output.status !== 0) {
console.log(output.stderr.toString());
}
assert.strictEqual(output.status, 0);
assert(fs.existsSync(dir2));
const profiles = getHeapProfiles(dir2);
assert.strictEqual(profiles.length, 1);
verifyFrames(output, profiles[0], 'runAllocation');
}
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