var vows = require('vows');
var assert = require('assert');
var suite = vows.describe('jStat.quartiles');

require('../env.js');

suite.addBatch({
  'quartiles': {
    'topic': function() {
      return jStat;
    },
    'return basic quartiles': function(jStat) {
      assert.deepEqual(jStat.quartiles([1, 2, 3, 4, 5, 6]), [2, 3, 5]);
    },
    'quartiles from instance': function(jStat) {
      assert.deepEqual(jStat([1, 2, 3, 4, 5, 6]).quartiles(), [2, 3, 5]);
    },
    'quartiles matrix cols': function(jStat) {
      assert.deepEqual(jStat([[1, 2], [3, 4], [5, 6]]).quartiles(),
                       [[1, 3, 3], [2, 4, 4]]);
    }
  },
  '#quartiles vector': {
    'topic': function() {
      jStat([1, 2, 3, 4, 5, 6]).quartiles(this.callback);
    },
    'quartiles callback': function(val, stat) {
      assert.deepEqual(val, [2, 3, 5]);
    }
  },
  '#quartiles matrix cols': {
    'topic': function() {
      jStat([[1, 2], [3, 4], [5, 6]]).quartiles(this.callback);
    },
    'quartiles matrix cols callback': function(val, stat) {
      assert.deepEqual(val, [[1, 3, 3], [2, 4, 4]]);
    }
  }
});

suite.export(module);