Convert testcases to use tap

package.json

@@ -19,9 +19,12 @@
     "Richard Chamberlain <richard_chamberlain@uk.ibm.com> (https://github.com/rnchamberlain)"
   ],
   "scripts": {
-    "test": "node test/autorun.js"
+    "test": "tap test/test*.js"
   },
   "bugs": {
     "url": "https://github.com/nodejs/nodereport/issues"
+  },
+  "devDependencies": {
+    "tap": "^8.0.0"
   }
 }

test/common.js

@@ -0,0 +1,36 @@
+'use strict';
+
+const fs = require('fs');
+
+const REPORT_SECTIONS = [
+  'NodeReport',
+  'JavaScript Stack Trace',
+  'JavaScript Heap',
+  'System Information'
+];
+
+exports.findReports = (pid) => {
+  // Default filenames are of the form NodeReport.<date>.<time>.<pid>.<seq>.txt
+  const format = '^NodeReport\\.\\d+\\.\\d+\\.' + pid + '\\.\\d+\\.txt$';
+  const filePattern = new RegExp(format);
+  const files = fs.readdirSync('.');
+  return files.filter((file) => filePattern.test(file));
+};
+
+exports.validate = (t, report, pid) => {
+  t.test('Validating ' + report, (t) => {
+    fs.readFile(report, (err, data) => {
+      const reportContents = data.toString();
+      const plan = REPORT_SECTIONS.length + (pid ? 1 : 0);
+      t.plan(plan);
+      if (pid) {
+        t.match(reportContents, new RegExp('Process ID: ' + pid),
+                'Checking report contains expected process ID ' + pid);
+      }
+      REPORT_SECTIONS.forEach((section) => {
+        t.match(reportContents, new RegExp('==== ' + section),
+                'Checking report contains ' + section + ' section');
+      });
+    });
+  });
+};

test/test-api.js

@@ -0,0 +1,21 @@
+'use strict';
+
+// Testcase to produce NodeReport via API call
+if (process.argv[2] === 'child') {
+  const nodereport = require('../');
+  nodereport.triggerReport();
+} else {
+  const common = require('./common.js');
+  const spawn = require('child_process').spawn;
+  const tap = require('tap');
+
+  const child = spawn(process.execPath, [__filename, 'child']);
+  child.on('exit', (code) => {
+    tap.plan(3);
+    tap.equal(code, 0, 'Process exited cleanly');
+    const reports = common.findReports(child.pid);
+    tap.equal(reports.length, 1, 'Found reports ' + reports);
+    const report = reports[0];
+    common.validate(tap, report, child.pid);
+  });
+}

test/test-exception.js

@@ -0,0 +1,36 @@
+'use strict';
+
+// Testcase to produce NodeReport on uncaught exception
+if (process.argv[2] === 'child') {
+  require('../').setEvents('exception');
+
+  function myException(request, response) {
+    const m = '*** exception.js: testcase exception thrown from myException()';
+    throw new UserException(m);
+  }
+
+  function UserException(message) {
+    this.message = message;
+    this.name = 'UserException';
+  }
+
+  myException();
+} else {
+  const common = require('./common.js');
+  const spawn = require('child_process').spawn;
+  const tap = require('tap');
+
+  const child = spawn(process.execPath, [__filename, 'child']);
+  child.on('exit', (code, signal) => {
+    const expectedExitCode = process.platform === 'win32' ? 3221225477 : null;
+    const expectedSignal = process.platform === 'win32' ? null : 'SIGILL';
+    tap.plan(4);
+    tap.equal(code, expectedExitCode, 'Process should not exit cleanly');
+    tap.equal(signal, expectedSignal,
+              'Process should exit with expected signal ');
+    const reports = common.findReports(child.pid);
+    tap.equal(reports.length, 1, 'Found reports ' + reports);
+    const report = reports[0];
+    common.validate(tap, report, child.pid);
+  });
+}

test/test-fatal-error.js

@@ -0,0 +1,33 @@
+'use strict';
+
+// Testcase to produce NodeReport on fatal error (javascript heap OOM)
+if (process.argv[2] === 'child') {
+  require('../').setEvents('fatalerror');
+
+  const list = [];
+  while (true) {
+    const record = new MyRecord();
+    list.push(record);
+  }
+
+  function MyRecord() {
+    this.name = 'foo';
+    this.id = 128;
+    this.account = 98454324;
+  }
+} else {
+  const common = require('./common.js');
+  const spawn = require('child_process').spawn;
+  const tap = require('tap');
+
+  const args = ['--max-old-space-size=20', __filename, 'child'];
+  const child = spawn(process.execPath, args);
+  child.on('exit', (code) => {
+    tap.plan(3);
+    tap.notEqual(code, 0, 'Process should not exit cleanly');
+    const reports = common.findReports(child.pid);
+    tap.equal(reports.length, 1, 'Found reports ' + reports);
+    const report = reports[0];
+    common.validate(tap, report, child.pid);
+  });
+}

test/test-signal.js

@@ -0,0 +1,64 @@
+'use strict';
+
+// Testcase to produce NodeReport on signal interrupting a js busy-loop,
+// showing it is interruptible.
+if (process.argv[2] === 'child') {
+  require('../').setEvents('signal');
+
+  // Exit on loss of parent process
+  process.on('disconnect', () => process.exit(2));
+
+  function busyLoop() {
+    var list = [];
+    for (var i = 0; i < 1e10; i++) {
+      for (var j = 0; j < 1000; j++) {
+        list.push(new MyRecord());
+      }
+      for (var k = 0; k < 1000; k++) {
+        list[k].id += 1;
+        list[k].account += 2;
+      }
+      for (var l = 0; l < 1000; l++) {
+        list.pop();
+      }
+    }
+  }
+
+  function MyRecord() {
+    this.name = 'foo';
+    this.id = 128;
+    this.account = 98454324;
+  }
+
+  process.send('child started', busyLoop);
+} else {
+  const common = require('./common.js');
+  const fork = require('child_process').fork;
+  const tap = require('tap');
+
+  if (process.platform === 'win32') {
+    tap.fail('Unsupported on Windows', { skip: true });
+    return;
+  }
+
+  const child = fork(__filename, ['child'], { silent: true });
+  // Wait for child to indicate it is ready before sending signal
+  child.on('message', () => child.kill('SIGUSR2'));
+  var stderr = '';
+  child.stderr.on('data', (chunk) => {
+    stderr += chunk;
+    // Terminate the child after the report has been written
+    if (stderr.includes('Node.js report completed')) {
+      child.kill('SIGTERM');
+    }
+  });
+  child.on('exit', (code, signal) => {
+    tap.plan(4);
+    tap.equal(code, null, 'Process should not exit cleanly');
+    tap.equal(signal, 'SIGTERM', 'Process should exit with expected signal');
+    const reports = common.findReports(child.pid);
+    tap.equal(reports.length, 1, 'Found reports ' + reports);
+    const report = reports[0];
+    common.validate(tap, report, child.pid);
+  });
+}