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Add tests for excluding NaNs, Ininities from ramps

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This commit is contained in:
Javier Goizueta 2017-08-03 19:07:02 +02:00
parent b4799124e6
commit eed33fc76d
1 changed files with 46 additions and 0 deletions
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test/unit/cartodb/backends/turbo-carto-postgres-datasource.js Normal file
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var PostgresDatasource = require('../../../../lib/cartodb/backends/turbo-carto-postgres-datasource');
var PSQL = require('cartodb-psql');
var _ = require('underscore');
var assert = require('assert');
describe('turbo-carto-postgres-datasource', function() {
beforeEach(function () {
const dbname = _.template(global.environment.postgres_auth_user, { user_id: 1 }) + '_db';
const dbuser = _.template(global.environment.postgres_auth_user, { user_id: 1 })
const pass = _.template(global.environment.postgres_auth_pass, { user_id: 1 })
const psql = new PSQL({
user: 'postgres',
dbname: dbname,
host: global.environment.postgres.host,
port: global.environment.postgres.port
});
const sql = [
'SELECT',
' null::geometry the_geom_webmercator,',
' CASE',
' WHEN x % 4 = 0 THEN \'infinity\'::float',
' WHEN x % 4 = 1 THEN \'-infinity\'::float',
' WHEN x % 4 = 2 THEN \'NaN\'::float',
' ELSE x',
' END AS values',
'FROM generate_series(1, 1000) x'
].join('\n')
this.datasource = new PostgresDatasource(psql, sql);
});
it('should ignore NaNs and Infinities when computing ramps', function(done) {
column = 'values';
buckets = 4;
method = 'equal';
this.datasource.getRamp(column, buckets, method, function(err, result) {
expected_result = {
ramp: [ 252, 501, 750, 999 ],
stats: { min_val: 3, max_val: 999, avg_val: 501 },
strategy: undefined
};
assert.deepEqual(result, expected_result);
done();
});
});
});