@spalger/kibana/src/ui/public/vislib/__tests__/components/labels.js

Kibana is an open source (Apache Licensed), browser based analytics and search dashboard for Elasticsearch. Kibana is a snap to setup and start using. Kibana strives to be easy to get started with, while also being flexible and powerful, just like Elastic

var angular = require('angular');
var _ = require('lodash');
var expect = require('expect.js');
var ngMock = require('ngMock');

var getLabels;
var seriesLabels;
var rowsLabels;
var seriesArr;
var rowsArr;
var uniqLabels;
var error;

var seriesData = {
  'label': '',
  'series': [
    {
      'label': '100',
      'values': [{x: 0, y: 1}, {x: 1, y: 2}, {x: 2, y: 3}]
    }
  ]
};

var rowsData = {
  'rows': [
    {
      'label': 'a',
      'series': [
        {
          'label': '100',
          'values': [{x: 0, y: 1}, {x: 1, y: 2}, {x: 2, y: 3}]
        }
      ]
    },
    {
      'label': 'b',
      'series': [
        {
          'label': '300',
          'values': [{x: 0, y: 1}, {x: 1, y: 2}, {x: 2, y: 3}]
        }
      ]
    },
    {
      'label': 'c',
      'series': [
        {
          'label': '100',
          'values': [{x: 0, y: 1}, {x: 1, y: 2}, {x: 2, y: 3}]
        }
      ]
    },
    {
      'label': 'd',
      'series': [
        {
          'label': '200',
          'values': [{x: 0, y: 1}, {x: 1, y: 2}, {x: 2, y: 3}]
        }
      ]
    }
  ]
};

var columnsData = {
  'columns': [
    {
      'label': 'a',
      'series': [
        {
          'label': '100',
          'values': [{x: 0, y: 1}, {x: 1, y: 2}, {x: 2, y: 3}]
        }
      ]
    },
    {
      'label': 'b',
      'series': [
        {
          'label': '300',
          'values': [{x: 0, y: 1}, {x: 1, y: 2}, {x: 2, y: 3}]
        }
      ]
    },
    {
      'label': 'c',
      'series': [
        {
          'label': '100',
          'values': [{x: 0, y: 1}, {x: 1, y: 2}, {x: 2, y: 3}]
        }
      ]
    },
    {
      'label': 'd',
      'series': [
        {
          'label': '200',
          'values': [{x: 0, y: 1}, {x: 1, y: 2}, {x: 2, y: 3}]
        }
      ]
    }
  ]
};

describe('Vislib Labels Module Test Suite', function () {

  describe('Labels (main)', function () {
    beforeEach(ngMock.module('kibana'));
    beforeEach(ngMock.inject(function (Private) {
      getLabels = Private(require('ui/vislib/components/labels/labels'));
      seriesLabels = getLabels(seriesData);
      rowsLabels = getLabels(rowsData);
      seriesArr = _.isArray(seriesLabels);
      rowsArr = _.isArray(rowsLabels);
      uniqLabels = _.chain(rowsData.rows)
        .pluck('series')
        .flattenDeep()
        .pluck('label')
        .uniq()
        .value();
    }));

    it('should be a function', function () {
      expect(typeof getLabels).to.be('function');
    });

    it('should return an array if input is data.series', function () {
      expect(seriesArr).to.be(true);
    });

    it('should return an array if input is data.rows', function () {
      expect(rowsArr).to.be(true);
    });

    it('should throw an error if input is not an object', function () {
      expect(function () {
        getLabels('string not object');
      }).to.throwError();
    });

    it('should return unique label values', function () {
      expect(rowsLabels[0]).to.equal(uniqLabels[0]);
      expect(rowsLabels[1]).to.equal(uniqLabels[1]);
      expect(rowsLabels[2]).to.equal(uniqLabels[2]);
    });

  });

  describe('Data array', function () {
    var childrenObject = {
      children: []
    };
    var seriesObject = {
      series: []
    };
    var rowsObject = {
      rows: []
    };
    var columnsObject = {
      columns: []
    };
    var string = 'string';
    var number = 23;
    var boolean = false;
    var emptyArray = [];
    var nullValue = null;
    var notAValue;
    var dataArray;
    var testSeries;
    var testRows;

    beforeEach(ngMock.module('kibana'));
    beforeEach(ngMock.inject(function (Private) {
      dataArray = Private(require('ui/vislib/components/labels/data_array'));
      seriesLabels = dataArray(seriesData);
      rowsLabels = dataArray(rowsData);
      testSeries = _.isArray(seriesLabels);
      testRows = _.isArray(rowsLabels);
    }));

    it('should throw an error if the input is not an object', function () {
      expect(function () {
        dataArray(string);
      }).to.throwError();

      expect(function () {
        dataArray(number);
      }).to.throwError();

      expect(function () {
        dataArray(boolean);
      }).to.throwError();

      expect(function () {
        dataArray(emptyArray);
      }).to.throwError();

      expect(function () {
        dataArray(nullValue);
      }).to.throwError();

      expect(function () {
        dataArray(notAValue);
      }).to.throwError();
    });

    it(
      'should throw an error if property series, rows, or ' +
      'columns is not present',
      function () {
        expect(function () {
          dataArray(childrenObject);
        }).to.throwError();
      }
    );

    it(
      'should not throw an error if object has property series, rows, or ' +
      'columns',
      function () {
        expect(function () {
          dataArray(seriesObject);
        }).to.not.throwError();

        expect(function () {
          dataArray(rowsObject);
        }).to.not.throwError();

        expect(function () {
          dataArray(columnsObject);
        }).to.not.throwError();
      }
    );

    it('should be a function', function () {
      expect(typeof dataArray).to.equal('function');
    });

    it('should return an array of objects if input is data.series', function () {
      expect(testSeries).to.equal(true);
    });

    it('should return an array of objects if input is data.rows', function () {
      expect(testRows).to.equal(true);
    });

    it('should return an array of same length as input data.series', function () {
      expect(seriesLabels.length).to.equal(seriesData.series.length);
    });

    it('should return an array of same length as input data.rows', function () {
      expect(rowsLabels.length).to.equal(rowsData.rows.length);
    });

    it('should return an array of objects with obj.labels and obj.values', function () {
      expect(seriesLabels[0].label).to.equal('100');
      expect(seriesLabels[0].values[0].x).to.equal(0);
      expect(seriesLabels[0].values[0].y).to.equal(1);
    });

  });

  describe('Unique labels', function () {
    var uniqLabels;
    var arrObj = [
      {'label': 'a'},
      {'label': 'b'},
      {'label': 'b'},
      {'label': 'c'},
      {'label': 'c'},
      {'label': 'd'},
      {'label': 'f'}
    ];
    var string = 'string';
    var number = 24;
    var boolean = false;
    var nullValue = null;
    var emptyObject = {};
    var emptyArray = [];
    var notAValue;
    var uniq;
    var testArr;

    beforeEach(ngMock.module('kibana'));
    beforeEach(ngMock.inject(function (Private) {
      uniqLabels = Private(require('ui/vislib/components/labels/uniq_labels'));
      uniq = uniqLabels(arrObj, function (d) { return d; });
      testArr = _.isArray(uniq);
    }));

    it('should throw an error if input is not an array', function () {
      expect(function () {
        uniqLabels(string);
      }).to.throwError();

      expect(function () {
        uniqLabels(number);
      }).to.throwError();

      expect(function () {
        uniqLabels(boolean);
      }).to.throwError();

      expect(function () {
        uniqLabels(nullValue);
      }).to.throwError();

      expect(function () {
        uniqLabels(emptyObject);
      }).to.throwError();

      expect(function () {
        uniqLabels(notAValue);
      }).to.throwError();
    });

    it('should not throw an error if the input is an array', function () {
      expect(function () {
        uniqLabels(emptyArray);
      }).to.not.throwError();
    });

    it('should be a function', function () {
      expect(typeof uniqLabels).to.be('function');
    });

    it('should return an array', function () {
      expect(testArr).to.be(true);
    });

    it('should return array of 5 unique values', function () {
      expect(uniq.length).to.be(5);
    });

  });

  describe('Get series', function () {
    var string = 'string';
    var number = 24;
    var boolean = false;
    var nullValue = null;
    var rowsObject = {
      rows: []
    };
    var columnsObject = {
      columns: []
    };
    var emptyObject = {};
    var emptyArray = [];
    var notAValue;
    var getSeries;
    var columnsLabels;
    var rowsLabels;
    var columnsArr;
    var rowsArr;

    beforeEach(ngMock.module('kibana'));
    beforeEach(ngMock.inject(function (Private) {
      getSeries = Private(require('ui/vislib/components/labels/flatten_series'));
      columnsLabels = getSeries(columnsData);
      rowsLabels = getSeries(rowsData);
      columnsArr = _.isArray(columnsLabels);
      rowsArr = _.isArray(rowsLabels);
    }));

    it('should throw an error if input is not an object', function () {
      expect(function () {
        getSeries(string);
      }).to.throwError();

      expect(function () {
        getSeries(number);
      }).to.throwError();

      expect(function () {
        getSeries(boolean);
      }).to.throwError();

      expect(function () {
        getSeries(nullValue);
      }).to.throwError();

      expect(function () {
        getSeries(emptyArray);
      }).to.throwError();

      expect(function () {
        getSeries(notAValue);
      }).to.throwError();
    });

    it('should throw an if property rows or columns is not set on the object', function () {
      expect(function () {
        getSeries(emptyObject);
      }).to.throwError();
    });

    it('should not throw an error if rows or columns set on object', function () {
      expect(function () {
        getSeries(rowsObject);
      }).to.not.throwError();

      expect(function () {
        getSeries(columnsObject);
      }).to.not.throwError();
    });

    it('should be a function', function () {
      expect(typeof getSeries).to.be('function');
    });

    it('should return an array if input is data.columns', function () {
      expect(columnsArr).to.be(true);
    });

    it('should return an array if input is data.rows', function () {
      expect(rowsArr).to.be(true);
    });

    it('should return an array of the same length as as input data.columns', function () {
      expect(columnsLabels.length).to.be(columnsData.columns.length);
    });

    it('should return an array of the same length as as input data.rows', function () {
      expect(rowsLabels.length).to.be(rowsData.rows.length);
    });

  });

});