|
| 1 | +'use strict'; |
| 2 | + |
| 3 | +const assert = require('assert'); |
| 4 | +const fs = require('fs'); |
| 5 | +const path = require('path'); |
| 6 | + |
| 7 | +function getHeapProfiles(dir) { |
| 8 | + const list = fs.readdirSync(dir); |
| 9 | + return list |
| 10 | + .filter((file) => file.endsWith('.heapprofile')) |
| 11 | + .map((file) => path.join(dir, file)); |
| 12 | +} |
| 13 | + |
| 14 | +function findFirstFrameInNode(root, func) { |
| 15 | + const first = root.children.find( |
| 16 | + (child) => child.callFrame.functionName === func |
| 17 | + ); |
| 18 | + if (first) { |
| 19 | + return first; |
| 20 | + } |
| 21 | + for (const child of root.children) { |
| 22 | + const first = findFirstFrameInNode(child, func); |
| 23 | + if (first) { |
| 24 | + return first; |
| 25 | + } |
| 26 | + } |
| 27 | + return undefined; |
| 28 | +} |
| 29 | + |
| 30 | +function findFirstFrame(file, func) { |
| 31 | + const data = fs.readFileSync(file, 'utf8'); |
| 32 | + const profile = JSON.parse(data); |
| 33 | + const first = findFirstFrameInNode(profile.head, func); |
| 34 | + return { frame: first, roots: profile.head.children }; |
| 35 | +} |
| 36 | + |
| 37 | +function verifyFrames(output, file, func) { |
| 38 | + const { frame, roots } = findFirstFrame(file, func); |
| 39 | + if (!frame) { |
| 40 | + // Show native debug output and the profile for debugging. |
| 41 | + console.log(output.stderr.toString()); |
| 42 | + console.log(roots); |
| 43 | + } |
| 44 | + assert.notStrictEqual(frame, undefined); |
| 45 | +} |
| 46 | + |
| 47 | +// We need to set --heap-prof-interval to a small enough value to make |
| 48 | +// sure we can find our workload in the samples, so we need to set |
| 49 | +// TEST_ALLOCATION > kHeapProfInterval. |
| 50 | +const kHeapProfInterval = 128; |
| 51 | +const TEST_ALLOCATION = kHeapProfInterval * 2; |
| 52 | + |
| 53 | +const env = { |
| 54 | + ...process.env, |
| 55 | + TEST_ALLOCATION, |
| 56 | + NODE_DEBUG_NATIVE: 'INSPECTOR_PROFILER' |
| 57 | +}; |
| 58 | + |
| 59 | +// TODO(joyeecheung): share the fixutres with v8 coverage tests |
| 60 | +module.exports = { |
| 61 | + getHeapProfiles, |
| 62 | + verifyFrames, |
| 63 | + findFirstFrame, |
| 64 | + kHeapProfInterval, |
| 65 | + TEST_ALLOCATION, |
| 66 | + env |
| 67 | +}; |
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