61 lines
1.7 KiB
JavaScript
61 lines
1.7 KiB
JavaScript
var assert = require('assert')
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var gonna = require('gonna')
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var concat = require('concat-stream')
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var _ = require('lodash')
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var pg = require('pg.js')
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var copy = require('../').from
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var client = function() {
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var client = new pg.Client()
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client.connect()
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return client
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}
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var testConstruction = function() {
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var highWaterMark = 10
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var stream = copy('COPY numbers FROM STDIN', {highWaterMark: 10, objectMode: true})
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for(var i = 0; i < highWaterMark * 1.5; i++) {
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stream.write('1\t2\n')
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}
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assert(!stream.write('1\t2\n'), 'Should correctly set highWaterMark.')
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}
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testConstruction()
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var testRange = function(top) {
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var fromClient = client()
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fromClient.query('CREATE TEMP TABLE numbers(num int, bigger_num int)')
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var txt = 'COPY numbers FROM STDIN'
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var stream = fromClient.query(copy(txt))
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var rowEmitCount = 0
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stream.on('row', function() {
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rowEmitCount++
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})
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for(var i = 0; i < top; i++) {
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stream.write(Buffer('' + i + '\t' + i*10 + '\n'))
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}
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stream.end()
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var countDone = gonna('have correct count')
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stream.on('end', function() {
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fromClient.query('SELECT COUNT(*) FROM numbers', function(err, res) {
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assert.ifError(err)
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assert.equal(res.rows[0].count, top, 'expected ' + top + ' rows but got ' + res.rows[0].count)
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console.log('found ', res.rows.length, 'rows')
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countDone()
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var firstRowDone = gonna('have correct result')
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assert.equal(stream.rowCount, top, 'should have rowCount ' + top + ' ')
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fromClient.query('SELECT (max(num)) AS num FROM numbers', function(err, res) {
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assert.ifError(err)
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assert.equal(res.rows[0].num, top-1)
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firstRowDone()
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fromClient.end()
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})
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})
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})
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}
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testRange(1000)
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