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41 lines
1.2 KiB
JavaScript
41 lines
1.2 KiB
JavaScript
(function() {
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'use strict';
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/*
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This file contains tests for the mapping the data values to
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the length of a bar so that it is the correct size for the screen
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*/
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describe('GraphScale, when specifying width', function() {
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var data; var WidthScale; var subject; var mockD3;
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beforeEach(function() {
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WidthScale = growstuff.WidthScale;
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var bars = [
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{name: 'Shade', value: 0.2},
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{name: 'Half Shade', value: 0.5},
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];
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data = {
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bars: bars,
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width: {size: 300, scale: 'linear'},
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height: {size: 400, scale: 'ordinal'},
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};
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subject = new WidthScale(data, 'width');
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mockD3 = jasmine.createSpyObj('d3', ['domain', 'range', 'max']);
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mockD3.domain.and.returnValue(mockD3);
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mockD3.range.and.returnValue(mockD3);
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spyOn(d3.scale, 'linear').and.returnValue(mockD3);
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subject.render();
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});
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it('gets the value of the longest bar', function() {
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expect(subject.getMaxValue()).toEqual(0.5);
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});
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it('calls the d3 range function to draw the width', function() {
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expect(mockD3.range).toHaveBeenCalledWith([0, 300]);
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});
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});
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}());
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