carto/test/filtered.test.js
Pablo Alonso Garcia fef8cb369f Minor copy changes
2017-08-21 17:35:08 +02:00

102 lines
3.1 KiB
JavaScript

/**
* Test the filtered field.
*
* When compiled, a rule provides metainformation fields like index, constant...etc
* one of this fields is the "filtered field".
*
* This field gives information about whether a property is filtered or not.
*
* A property is filtered if it was activated inside a filter. In the following cartocss
* code marker-color.filtered will be true because it's inside a population filter.
*
* #layer {
* maker-width: 20;
* [population > 100] {
* marker-color: red; // this property is filtered
* }
* }
*
* "zoom" is a special case, and it only should be considered when its value is not the default.
*/
var assert = require('assert');
var Carto = require('../lib/carto/index.js');
var renderer = new Carto.RendererJS({ strict: true });
describe('property.filtered', function () {
it('should be false when the property is not filtered', function () {
var style = [
'#layer {',
' marker-fill: red;',
'}'
].join('\n');
var layers = renderer.render(style).layers[0].shader;
assert(!layers['marker-fill'].filtered);
});
it('should be true when the property is filtered', function () {
var style = [
'#layer {',
' [foo > 30] {',
' marker-fill: red;',
' }',
'}'
].join('\n');
var layers = renderer.render(style).layers[0].shader;
assert(layers['marker-fill'].filtered);
});
it('should be true when the property is filtered at first level', function () {
var style = [
'#layer [foo > 30] {',
' marker-fill: red;',
'}`'
].join('\n');
var layers = renderer.render(style).layers[0].shader;
assert(layers['marker-fill'].filtered);
});
it('should be false when the property is not filterd but there is another filtered properties', function () {
var style = [
'#layer {',
' marker-fill: red;',
' [bar < 200]{',
' marker-allow-overlap: false;',
' }',
'}`'
].join('\n');
var layers = renderer.render(style).layers[0].shader;
assert(!layers['marker-fill'].filtered);
assert(layers['marker-allow-overlap'].filtered);
});
it('should be true when the property is filtered and have a default value', function () {
var style = [
'#layer {',
' marker-fill: red;',
' [bar < 200]{',
' marker-fill: blue;',
' }',
'}`'
].join('\n');
var layers = renderer.render(style).layers[0].shader;
assert(layers['marker-fill'].filtered);
});
it('should be true when filtering by zoom', function () {
var style = [
'#layer {',
' [zoom < 5]{',
' marker-fill: blue;',
' }',
'}`'
].join('\n');
var layers = renderer.render(style).layers[0].shader;
assert(layers['marker-fill'].filtered);
});
});