test: improve validation of report output

This commit improves the validation of generated diagnostic
reports.

PR-URL: #26289
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Richard Lau <riclau@uk.ibm.com>
Reviewed-By: James M Snell <jasnell@gmail.com>

test/common/report.js

@@ -2,6 +2,7 @@
 'use strict';
 const assert = require('assert');
 const fs = require('fs');
+const os = require('os');
 const path = require('path');
 
 function findReports(pid, dir) {
@@ -27,16 +28,194 @@ function validate(report) {
 }
 
 function validateContent(data) {
+  try {
+    _validateContent(data);
+  } catch (err) {
+    err.stack += `\n------\nFailing Report:\n${data}`;
+    throw err;
+  }
+}
+
+function _validateContent(data) {
+  const isWindows = process.platform === 'win32';
   const report = JSON.parse(data);
 
-  // Verify that all sections are present.
-  ['header', 'javascriptStack', 'nativeStack', 'javascriptHeap',
-   'libuv', 'environmentVariables', 'sharedObjects'].forEach((section) => {
+  // Verify that all sections are present as own properties of the report.
+  const sections = ['header', 'javascriptStack', 'nativeStack',
+                    'javascriptHeap', 'libuv', 'environmentVariables',
+                    'sharedObjects'];
+  if (!isWindows)
+    sections.push('resourceUsage', 'userLimits');
+
+  if (report.uvthreadResourceUsage)
+    sections.push('uvthreadResourceUsage');
+
+  checkForUnknownFields(report, sections);
+  sections.forEach((section) => {
     assert(report.hasOwnProperty(section));
+    assert(typeof report[section] === 'object' && report[section] !== null);
+  });
+
+  // Verify the format of the header section.
+  const header = report.header;
+  const headerFields = ['event', 'location', 'filename', 'dumpEventTime',
+                        'dumpEventTimeStamp', 'processId', 'commandLine',
+                        'nodejsVersion', 'wordSize', 'arch', 'platform',
+                        'componentVersions', 'release', 'osName', 'osRelease',
+                        'osVersion', 'osMachine', 'host', 'glibcVersionRuntime',
+                        'glibcVersionCompiler'];
+  checkForUnknownFields(header, headerFields);
+  assert.strictEqual(typeof header.event, 'string');
+  assert.strictEqual(typeof header.location, 'string');
+  assert(typeof header.filename === 'string' || header.filename === null);
+  assert.notStrictEqual(new Date(header.dumpEventTime).toString(),
+                        'Invalid Date');
+  if (isWindows)
+    assert.strictEqual(header.dumpEventTimeStamp, undefined);
+  else
+    assert(String(+header.dumpEventTimeStamp), header.dumpEventTimeStamp);
+
+  assert(Number.isSafeInteger(header.processId));
+  assert(Array.isArray(header.commandLine));
+  header.commandLine.forEach((arg) => {
+    assert.strictEqual(typeof arg, 'string');
+  });
+  assert.strictEqual(header.nodejsVersion, process.version);
+  assert(Number.isSafeInteger(header.wordSize));
+  assert.strictEqual(header.arch, os.arch());
+  assert.strictEqual(header.platform, os.platform());
+  assert.deepStrictEqual(header.componentVersions, process.versions);
+  assert.deepStrictEqual(header.release, process.release);
+  assert.strictEqual(header.osName, os.type());
+  assert.strictEqual(header.osRelease, os.release());
+  assert.strictEqual(typeof header.osVersion, 'string');
+  assert.strictEqual(typeof header.osMachine, 'string');
+  assert.strictEqual(header.host, os.hostname());
+
+  // Verify the format of the javascriptStack section.
+  checkForUnknownFields(report.javascriptStack, ['message', 'stack']);
+  assert.strictEqual(typeof report.javascriptStack.message, 'string');
+  if (report.javascriptStack.stack !== undefined) {
+    assert(Array.isArray(report.javascriptStack.stack));
+    report.javascriptStack.stack.forEach((frame) => {
+      assert.strictEqual(typeof frame, 'string');
+    });
+  }
+
+  // Verify the format of the nativeStack section.
+  assert(Array.isArray(report.nativeStack));
+  report.nativeStack.forEach((frame) => {
+    assert(typeof frame === 'object' && frame !== null);
+    checkForUnknownFields(frame, ['pc', 'symbol']);
+    assert.strictEqual(typeof frame.pc, 'string');
+    assert(/^0x[0-9a-f]+$/.test(frame.pc));
+    assert.strictEqual(typeof frame.symbol, 'string');
+  });
+
+  // Verify the format of the javascriptHeap section.
+  const heap = report.javascriptHeap;
+  const jsHeapFields = ['totalMemory', 'totalCommittedMemory', 'usedMemory',
+                        'availableMemory', 'memoryLimit', 'heapSpaces'];
+  checkForUnknownFields(heap, jsHeapFields);
+  assert(Number.isSafeInteger(heap.totalMemory));
+  assert(Number.isSafeInteger(heap.totalCommittedMemory));
+  assert(Number.isSafeInteger(heap.usedMemory));
+  assert(Number.isSafeInteger(heap.availableMemory));
+  assert(Number.isSafeInteger(heap.memoryLimit));
+  assert(typeof heap.heapSpaces === 'object' && heap.heapSpaces !== null);
+  const heapSpaceFields = ['memorySize', 'committedMemory', 'capacity', 'used',
+                           'available'];
+  Object.keys(heap.heapSpaces).forEach((spaceName) => {
+    const space = heap.heapSpaces[spaceName];
+    checkForUnknownFields(space, heapSpaceFields);
+    heapSpaceFields.forEach((field) => {
+      assert(Number.isSafeInteger(space[field]));
+    });
+  });
+
+  // Verify the format of the resourceUsage section on non-Windows platforms.
+  if (!isWindows) {
+    const usage = report.resourceUsage;
+    const resourceUsageFields = ['userCpuSeconds', 'kernelCpuSeconds',
+                                 'cpuConsumptionPercent', 'maxRss',
+                                 'pageFaults', 'fsActivity'];
+    checkForUnknownFields(usage, resourceUsageFields);
+    assert.strictEqual(typeof usage.userCpuSeconds, 'number');
+    assert.strictEqual(typeof usage.kernelCpuSeconds, 'number');
+    assert.strictEqual(typeof usage.cpuConsumptionPercent, 'number');
+    assert(Number.isSafeInteger(usage.maxRss));
+    assert(typeof usage.pageFaults === 'object' && usage.pageFaults !== null);
+    checkForUnknownFields(usage.pageFaults, ['IORequired', 'IONotRequired']);
+    assert(Number.isSafeInteger(usage.pageFaults.IORequired));
+    assert(Number.isSafeInteger(usage.pageFaults.IONotRequired));
+    assert(typeof usage.fsActivity === 'object' && usage.fsActivity !== null);
+    checkForUnknownFields(usage.fsActivity, ['reads', 'writes']);
+    assert(Number.isSafeInteger(usage.fsActivity.reads));
+    assert(Number.isSafeInteger(usage.fsActivity.writes));
+  }
+
+  // Verify the format of the uvthreadResourceUsage section, if present.
+  if (report.uvthreadResourceUsage) {
+    const usage = report.uvthreadResourceUsage;
+    const threadUsageFields = ['userCpuSeconds', 'kernelCpuSeconds',
+                               'cpuConsumptionPercent', 'fsActivity'];
+    checkForUnknownFields(usage, threadUsageFields);
+    assert.strictEqual(typeof usage.userCpuSeconds, 'number');
+    assert.strictEqual(typeof usage.kernelCpuSeconds, 'number');
+    assert.strictEqual(typeof usage.cpuConsumptionPercent, 'number');
+    assert(typeof usage.fsActivity === 'object' && usage.fsActivity !== null);
+    checkForUnknownFields(usage.fsActivity, ['reads', 'writes']);
+    assert(Number.isSafeInteger(usage.fsActivity.reads));
+    assert(Number.isSafeInteger(usage.fsActivity.writes));
+  }
+
+  // Verify the format of the libuv section.
+  assert(Array.isArray(report.libuv));
+  report.libuv.forEach((resource) => {
+    assert.strictEqual(typeof resource.type, 'string');
+    assert.strictEqual(typeof resource.address, 'string');
+    assert(/^0x[0-9a-f]+$/.test(resource.address));
+    assert.strictEqual(typeof resource.is_active, 'boolean');
+    assert.strictEqual(typeof resource.is_referenced,
+                       resource.type === 'loop' ? 'undefined' : 'boolean');
   });
 
-  assert.deepStrictEqual(report.header.componentVersions, process.versions);
-  assert.deepStrictEqual(report.header.release, process.release);
+  // Verify the format of the environmentVariables section.
+  for (const [key, value] of Object.entries(report.environmentVariables)) {
+    assert.strictEqual(typeof key, 'string');
+    assert.strictEqual(typeof value, 'string');
+  }
+
+  // Verify the format of the userLimits section on non-Windows platforms.
+  if (!isWindows) {
+    const userLimitsFields = ['core_file_size_blocks', 'data_seg_size_kbytes',
+                              'file_size_blocks', 'max_locked_memory_bytes',
+                              'max_memory_size_kbytes', 'open_files',
+                              'stack_size_bytes', 'cpu_time_seconds',
+                              'max_user_processes', 'virtual_memory_kbytes'];
+    checkForUnknownFields(report.userLimits, userLimitsFields);
+    for (const [type, limits] of Object.entries(report.userLimits)) {
+      assert.strictEqual(typeof type, 'string');
+      assert(typeof limits === 'object' && limits !== null);
+      checkForUnknownFields(limits, ['soft', 'hard']);
+      assert(typeof limits.soft === 'number' || limits.soft === 'unlimited',
+             `Invalid ${type} soft limit of ${limits.soft}`);
+      assert(typeof limits.hard === 'number' || limits.hard === 'unlimited',
+             `Invalid ${type} hard limit of ${limits.hard}`);
+    }
+  }
+
+  // Verify the format of the sharedObjects section.
+  assert(Array.isArray(report.sharedObjects));
+  report.sharedObjects.forEach((sharedObject) => {
+    assert.strictEqual(typeof sharedObject, 'string');
+  });
+}
+
+function checkForUnknownFields(actual, expected) {
+  Object.keys(actual).forEach((field) => {
+    assert(expected.includes(field), `'${field}' not expected in ${expected}`);
+  });
 }
 
 module.exports = { findReports, validate, validateContent };