test output of the node assert modules methods against various data types

assert.js

var assert = require('assert');

var logAssert = function(method, expected, result){
  if (typeof(expected) != 'object'){
    var paramString = '' + expected + ' ' + result;
    process.stdout.write('   ' + paramString);
  } else {
    process.stdout.write('   ');
    process.stdout.write(JSON.stringify(expected) + ' ' +  JSON.stringify(result));
  }

  try {
    assert[method](expected, result);
    console.log(' ---> success');
  } catch (e) {
    console.log(' ---> fail');
  }
};

var assertMethods =  [
  'equal',
  'notEqual',
  'deepEqual',
  'notDeepEqual',
  'strictEqual',
  'notStrictEqual'
];

var data = [
  [true, true],
  [true, false],
  [1, 1],
  [1, 0],
  ['abc', 'abc'],
  ['abc', 'xxx'],
  [{}, {}],
  [{}, {a: 0}],
  [[0], [0]],
  [[0], [1]],
  [NaN, NaN],
  [0, NaN],
  [0, null],
  [null, null],
  [Infinity, Infinity],
  [0, Infinity]
];

assertMethods.forEach(function(method){
  console.log('assert.' + method);
  data.forEach(function(args){
    logAssert(method, args[0], args[1]);
  });
  console.log();
});

console.log('assert.fail');
data.forEach(function(param){
  process.stdout.write('   ' +  JSON.stringify(param[0]) + ' ' + JSON.stringify(param[1]) + ' null ' + ' ==');
  try {
    assert.fail(param[0], param[1], null, '==');
    console.log(' ---> success');
  } catch (e) {
    console.log(' ---> fail');
  }
});

console.log('\nassert');

data = [
  'string',
  0,
  [],
  {},
  true,
  false,
  null,
  NaN,
  Infinity
];

data.forEach(function(param){
  if (typeof(param) == 'object'){
    process.stdout.write('    ' + JSON.stringify(param));
  } else {
    process.stdout.write('    ' + param);
  }

  try {
    assert(param);
    console.log(' ---> success');
  } catch (e) {
    console.log(' ---> fail');
  }
});

console.log('\nifError');
data.forEach(function(param){
  if (typeof(param) == 'object'){
    process.stdout.write('    ' + JSON.stringify(param));
  } else {
    process.stdout.write('    ' + param);
  }

  try {
    assert.ifError(param);
    console.log(' ---> success');
  } catch (e) {
    console.log(' ---> fail');
  }
});


console.log('\nthrows');
process.stdout.write('    block-that-throws-error');
try {
  assert.throws(assert.fail);
  console.log(' ---> success');
} catch (e) {
  console.log(' ---> fail');
}

process.stdout.write('    block-that-dosnt-throws-error');
try {
  assert.throws(function(){});
  console.log(' ---> success');
} catch (e) {
  console.log(' ---> fail');
}


console.log('\ndoesNotThow');
process.stdout.write('    block-that-throws-error');
try {
  assert.doesNotThrow(assert.fail);
  console.log(' ---> success');
} catch (e) {
  console.log(' ---> fail');
}

process.stdout.write('    block-that-dosnt-throws-error');
try {
  assert.doesNotThrow(function(){});
  console.log(' ---> success');
} catch (e) {
  console.log(' ---> fail');
}