46 lines
1.6 KiB
JavaScript
46 lines
1.6 KiB
JavaScript
'use strict';
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var PostgresDatasource = require('../../../lib/backends/turbo-carto-postgres-datasource');
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var PSQL = require('cartodb-psql');
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var _ = require('underscore');
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var assert = require('assert');
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describe('turbo-carto-postgres-datasource', function () {
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beforeEach(function () {
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const dbname = _.template(global.environment.postgres_auth_user, { user_id: 1 }) + '_db';
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const psql = new PSQL({
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user: 'postgres',
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dbname: dbname,
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host: global.environment.postgres.host,
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port: global.environment.postgres.port
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});
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const sql = [
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'SELECT',
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' null::geometry the_geom_webmercator,',
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' CASE',
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' WHEN x % 4 = 0 THEN \'infinity\'::float',
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' WHEN x % 4 = 1 THEN \'-infinity\'::float',
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' WHEN x % 4 = 2 THEN \'NaN\'::float',
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' ELSE x',
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' END AS values',
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'FROM generate_series(1, 1000) x'
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].join('\n');
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this.datasource = new PostgresDatasource(psql, sql);
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});
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it('should ignore NaNs and Infinities when computing ramps', function (done) {
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var column = 'values';
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var buckets = 4;
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var method = 'equal';
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this.datasource.getRamp(column, buckets, method, function (err, result) {
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var expected_result = {
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ramp: [252, 501, 750, 999],
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stats: { min_val: 3, max_val: 999, avg_val: 501 },
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strategy: undefined
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};
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assert.deepStrictEqual(result, expected_result);
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done();
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});
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});
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});
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