node/test/parallel/test-domain-abort-on-uncaught.js

'use strict';

// This test makes sure that when using --abort-on-uncaught-exception and
// when throwing an error from within a domain that has an error handler
// setup, the process _does not_ abort.

const common = require('../common');

const assert = require('assert');
const domain = require('domain');
const child_process = require('child_process');

const tests = [
  function nextTick() {
    const d = domain.create();

    d.once('error', common.mustCall());

    d.run(function() {
      process.nextTick(function() {
        throw new Error('exceptional!');
      });
    });
  },

  function timer() {
    const d = domain.create();

    d.on('error', common.mustCall());

    d.run(function() {
      setTimeout(function() {
        throw new Error('exceptional!');
      }, 33);
    });
  },

  function immediate() {
    const d = domain.create();

    d.on('error', common.mustCall());

    d.run(function() {
      setImmediate(function() {
        throw new Error('boom!');
      });
    });
  },

  function timerPlusNextTick() {
    const d = domain.create();

    d.on('error', common.mustCall());

    d.run(function() {
      setTimeout(function() {
        process.nextTick(function() {
          throw new Error('exceptional!');
        });
      }, 33);
    });
  },

  function firstRun() {
    const d = domain.create();

    d.on('error', common.mustCall());

    d.run(function() {
      throw new Error('exceptional!');
    });
  },

  function fsAsync() {
    const d = domain.create();

    d.on('error', common.mustCall());

    d.run(function() {
      const fs = require('fs');
      fs.exists('/non/existing/file', function onExists(exists) {
        throw new Error('boom!');
      });
    });
  },

  function netServer() {
    const net = require('net');
    const d = domain.create();

    d.on('error', common.mustCall());

    d.run(function() {
      const server = net.createServer(function(conn) {
        conn.pipe(conn);
      });
      server.listen(0, common.localhostIPv4, function() {
        const conn = net.connect(this.address().port, common.localhostIPv4);
        conn.once('data', function() {
          throw new Error('ok');
        });
        conn.end('ok');
        server.close();
      });
    });
  },

  function firstRunOnlyTopLevelErrorHandler() {
    const d = domain.create();
    const d2 = domain.create();

    d.on('error', common.mustCall());

    d.run(function() {
      d2.run(function() {
        throw new Error('boom!');
      });
    });
  },

  function firstRunNestedWithErrorHandler() {
    const d = domain.create();
    const d2 = domain.create();

    d2.on('error', common.mustCall());

    d.run(function() {
      d2.run(function() {
        throw new Error('boom!');
      });
    });
  },

  function timeoutNestedWithErrorHandler() {
    const d = domain.create();
    const d2 = domain.create();

    d2.on('error', common.mustCall());

    d.run(function() {
      d2.run(function() {
        setTimeout(function() {
          console.log('foo');
          throw new Error('boom!');
        }, 33);
      });
    });
  },

  function setImmediateNestedWithErrorHandler() {
    const d = domain.create();
    const d2 = domain.create();

    d2.on('error', common.mustCall());

    d.run(function() {
      d2.run(function() {
        setImmediate(function() {
          throw new Error('boom!');
        });
      });
    });
  },

  function nextTickNestedWithErrorHandler() {
    const d = domain.create();
    const d2 = domain.create();

    d2.on('error', common.mustCall());

    d.run(function() {
      d2.run(function() {
        process.nextTick(function() {
          throw new Error('boom!');
        });
      });
    });
  },

  function fsAsyncNestedWithErrorHandler() {
    const d = domain.create();
    const d2 = domain.create();

    d2.on('error', common.mustCall());

    d.run(function() {
      d2.run(function() {
        const fs = require('fs');
        fs.exists('/non/existing/file', function onExists(exists) {
          throw new Error('boom!');
        });
      });
    });
  }
];

if (process.argv[2] === 'child') {
  const testIndex = +process.argv[3];

  tests[testIndex]();

} else {

  tests.forEach(function(test, testIndex) {
    let testCmd = '';
    if (!common.isWindows) {
      // Do not create core files, as it can take a lot of disk space on
      // continuous testing and developers' machines
      testCmd += 'ulimit -c 0 && ';
    }

    testCmd += `"${process.argv[0]}" --abort-on-uncaught-exception ` +
               `"${process.argv[1]}" child ${testIndex}`;

    try {
      child_process.execSync(testCmd);
    } catch (e) {
      assert.fail(`Test index ${testIndex} failed: ${e}`);
    }
  });
}