content: import Component from '../horizontal-bar-background';
  import TestFunctions from './__test-functions__';
  import d3 from 'd3';
  import React from 'react';
  
  describe('HorizontalBarBackground', () => {
    const { renderIntoDocument } = React.addons.TestUtils;
  
    TestFunctions.isOfExpectedType(Component, 'g', 'horizontal-bar-background');
  
    TestFunctions.hasExpectedDefaultProps(Component, {
      active: false,
      corners: {},
      height: 0,
      scale: Function,
      style: {},
      value: 0,
      width: 0,
      x: 0,
    });
  
    TestFunctions.hasExpectedInitialState(Component, {
      backgroundWidth: 0,
      fill: '',
      fillActive: '',
      style: null,
    });
  
    describe('has a getBackgroundWidth function that', () => {
      const component = renderIntoDocument(<Component />);
      it('uses a scale to calculate a background width', () => {
        const scale = d3.scale.linear().domain([0, 100]).range([0, 100]);
        expect(component.getBackgroundWidth(scale, 0)).toEqual(0);
        expect(component.getBackgroundWidth(scale, 50)).toEqual(50);
        expect(component.getBackgroundWidth(scale, 100)).toEqual(100);
      });
    });
  });
  