How to use

assert

function

in

Console

da1.leftOuterJoin(da2)
 .collect(function(err, res) {
  console.log(res);
  res.sort();
  console.assert(JSON.stringify(res) === JSON.stringify([[10, [1, 'world']], [20, [2, null]]]));
  sc.end();
 });

fs.readdir('.')
 .then(data => {
  console.assert(Boolean(data));
 })
 .catch(() => {
  // Shouldn't error
  console.assert(false);
 });

function firstNonNegative(values)
    {
      for (var i = 0; i < values.length; ++i) {
        if (values[i] >= 0)
          return values[i];
      }
      console.assert(false, "Incomplete requet timing information.");
    }

sc.parallelize([1, 2, 3, 4])
 .map(by2, {bias: 2})
 .reduce(sum, 0, function(err, res) {
  console.log(res);
  console.assert(res === 40);
  sc.end();
 });

sc.range(6).map((a) => a*a).reduce((a,b) => a+b, 0)
 .then(function (res) {
  console.log(res);
  console.assert(res === 55);
  sc.end();
 });

githubUsername () {
  // HACK, cannot get github username reliably from email
  // hitting api rate limits
  // parse github url instead
  this.githubUsername = usernameFromGithubUrl(this.originUrl)
  debug('got github username', this.githubUsername)
  console.assert(
   this.githubUsername,
   'Could not get github username from url ' + this.originUrl
  )
 }

sc.parallelize([1, 2, 3, 4, 5, 6, 7, 8, 9]).
 intersection(sc.parallelize([5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15])).
 collect(function(err, res) {
  console.log(res);
  res.sort();
  console.assert(JSON.stringify(res) === JSON.stringify([5, 6, 7, 8, 9]));    
  sc.end();
 });

sc.parallelize([1, 2, 3, 4])
 .flatMap(dup)
 .aggregate(reducer, combiner, [], function(err, res) {
  console.log(res);
  res.sort();
  console.assert(JSON.stringify(res) === JSON.stringify([1, 1, 2, 2, 3, 3, 4, 4])); 
  sc.end();
 });

a.join(b).collect(function(err, res) {
 console.log(res);
 console.assert(JSON.stringify(res) === JSON.stringify([['world', [2, 4]],['world',[3, 4]]])); 
 sc.end();
});

sc.parallelize([[1,2],[3,4],[3,6]]).
 first().
 then(function(res) {
  console.log(res);
  console.assert(JSON.stringify(res) === JSON.stringify([1, 2]));
  sc.end();
 });

sc.textFile(file)
 .aggregate(reducer, combiner, [], function(err, res) {
  console.log(res);
  res.sort();
  console.assert(JSON.stringify(res) === JSON.stringify(['1 1', '1 1', '2 3', '2 4', '3 5']));  
  sc.end();
 });

sc.parallelize([[1,2],[2,4],[4,6]])
 .values()
 .collect(function(err, res) {
  console.log(res);
  res.sort();
  console.assert(JSON.stringify(res) === JSON.stringify([2,4,6]));    
  sc.end();
 });

sc.parallelize(d1)
 .subtract(sc.parallelize(d2))
 .collect(function(err, res) {
  console.log(res);
  res.sort();
  console.assert(JSON.stringify(res) === JSON.stringify([[2, 4], [3, 5]]));   
  sc.end();
 });

sc.parallelize(data, nPartitions)
 .reduceByKey(reducer, init)
 .collect(function(err, res) {
  console.log(res);
  console.assert(JSON.stringify(res) === JSON.stringify([['hello', 2], ['world', 1]]));   
  sc.end();
 });

sc.parallelize(data, nPartitions)
 .aggregateByKey(reducer, combiner, init)
 .collect(function(err, res) {
  console.log(res);
  console.assert(JSON.stringify(res) === JSON.stringify([['hello', 2], ['world', 1]]));
  sc.end();
 });