76 lines
2.2 KiB
JavaScript
76 lines
2.2 KiB
JavaScript
'use strict';
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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')
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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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for(var i = 0; i < top; i++) {
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stream.write(Buffer.from('' + 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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assert.equal(stream.rowCount, top, 'expected ' + top + ' rows but db count is ' + stream.rowCount)
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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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var testSingleEnd = function() {
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var fromClient = client()
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fromClient.query('CREATE TEMP TABLE numbers(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 count = 0;
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stream.on('end', function() {
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count++;
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assert(count==1, '`end` Event was triggered ' + count + ' times');
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if (count == 1) fromClient.end();
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})
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stream.end(Buffer.from('1\n'))
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}
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testSingleEnd()
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