379 lines
11 KiB
JavaScript
379 lines
11 KiB
JavaScript
/* Copyright (c) 2015, 2016, Oracle and/or its affiliates. All rights reserved. */
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/******************************************************************************
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*
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* You may not use the identified files except in compliance with the Apache
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* License, Version 2.0 (the "License.")
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*
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* You may obtain a copy of the License at
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* http://www.apache.org/licenses/LICENSE-2.0.
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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*
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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* The node-oracledb test suite uses 'mocha', 'should' and 'async'.
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* See LICENSE.md for relevant licenses.
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*
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* NAME
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* 15. resultsetToStream.js
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*
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* DESCRIPTION
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* Testing driver query results via stream feature.
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*
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* NUMBERING RULE
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* Test numbers follow this numbering rule:
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* 1 - 20 are reserved for basic functional tests
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* 21 - 50 are reserved for data type supporting tests
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* 51 onwards are for other tests
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*
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*****************************************************************************/
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'use strict';
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var oracledb = require('oracledb');
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var should = require('should');
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var async = require('async');
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var dbConfig = require('./dbconfig.js');
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describe('15. resultsetToStream.js', function () {
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var connection = null;
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var rowsAmount = 217;
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before(function(done) {
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async.series([
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function getConn(cb) {
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oracledb.getConnection(
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{
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user: dbConfig.user,
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password: dbConfig.password,
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connectString: dbConfig.connectString
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},
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function(err, conn) {
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should.not.exist(err);
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connection = conn;
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cb();
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}
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);
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},
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function createTab(cb) {
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var proc = "BEGIN \n" +
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" DECLARE \n" +
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" e_table_missing EXCEPTION; \n" +
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" PRAGMA EXCEPTION_INIT(e_table_missing, -00942);\n " +
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" BEGIN \n" +
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" EXECUTE IMMEDIATE ('DROP TABLE nodb_rs2stream PURGE'); \n" +
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" EXCEPTION \n" +
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" WHEN e_table_missing \n" +
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" THEN NULL; \n" +
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" END; \n" +
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" EXECUTE IMMEDIATE (' \n" +
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" CREATE TABLE nodb_rs2stream ( \n" +
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" employees_id NUMBER, \n" +
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" employees_name VARCHAR2(20), \n" +
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" employees_history CLOB \n" +
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" ) \n" +
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" '); \n" +
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"END; ";
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connection.execute(
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proc,
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function(err) {
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should.not.exist(err);
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cb();
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}
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);
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},
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function insertRows(cb) {
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var proc = "DECLARE \n" +
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" x NUMBER := 0; \n" +
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" n VARCHAR2(20); \n" +
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" clobData CLOB; \n" +
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"BEGIN \n" +
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" FOR i IN 1..217 LOOP \n" +
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" x := x + 1; \n" +
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" n := 'staff ' || x; \n" +
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" INSERT INTO nodb_rs2stream VALUES (x, n, EMPTY_CLOB()) RETURNING employees_history INTO clobData; \n" +
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" DBMS_LOB.WRITE(clobData, 20, 1, '12345678901234567890'); \n" +
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" END LOOP; \n" +
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"end; ";
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connection.execute(
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proc,
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function(err) {
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should.not.exist(err);
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cb();
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}
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);
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}
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], done);
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}); // before
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after(function(done) {
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async.series([
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function(callback) {
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connection.execute(
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"DROP TABLE nodb_rs2stream PURGE",
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function(err) {
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should.not.exist(err);
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callback();
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}
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);
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},
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function(callback) {
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connection.release(function(err) {
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should.not.exist(err);
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callback();
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});
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},
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], done);
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}); // after
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describe('15.1 Testing ResultSet.toQueryStream', function () {
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it('15.1.1 should allow resultsets to be converted to streams', function (done) {
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connection.execute(
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'begin \n' +
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' open :cursor for select employees_name from nodb_rs2stream; \n' +
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'end;',
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{
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cursor: { type: oracledb.CURSOR, dir: oracledb.BIND_OUT }
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},
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function(err, result) {
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should.not.exist(err);
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var stream = result.outBinds.cursor.toQueryStream();
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stream.on('error', function (error) {
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console.log(error);
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should.fail(error, null, 'Error event should not be triggered');
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});
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var counter = 0;
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stream.on('data', function (data) {
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should.exist(data);
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counter++;
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});
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stream.on('end', function () {
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should.equal(counter, rowsAmount);
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setTimeout(done, 500);
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});
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}
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);
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});
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});
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describe('15.2 Testing ResultSet/QueryStream conversion errors', function () {
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it('15.2.1 should prevent conversion to stream after getRow is invoked', function (done) {
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connection.execute(
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'begin \n' +
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' open :cursor for select employees_name from nodb_rs2stream; \n' +
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'end;',
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{
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cursor: { type: oracledb.CURSOR, dir: oracledb.BIND_OUT }
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},
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function(err, result) {
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should.not.exist(err);
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var cursor = result.outBinds.cursor;
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cursor.getRow(function(err) {
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should.not.exist(err);
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cursor.close(function(err) {
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should.not.exist(err);
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done();
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});
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});
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try {
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cursor.toQueryStream();
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} catch (err) {
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(err.message).should.startWith('NJS-041:');
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// NJS-041: cannot convert to stream after invoking methods
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}
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}
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);
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});
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it('15.2.2 should prevent conversion to stream after getRows is invoked', function (done) {
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connection.execute(
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'begin \n' +
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' open :cursor for select employees_name from nodb_rs2stream; \n' +
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'end;',
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{
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cursor: { type: oracledb.CURSOR, dir : oracledb.BIND_OUT }
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},
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function(err, result) {
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should.not.exist(err);
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var cursor = result.outBinds.cursor;
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cursor.getRows(5, function(err) {
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should.not.exist(err);
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cursor.close(function(err) {
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should.not.exist(err);
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done();
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});
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});
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try {
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cursor.toQueryStream();
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} catch (err) {
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(err.message).should.startWith('NJS-041:');
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}
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}
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);
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});
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it('15.2.3 should prevent conversion to stream after close is invoked', function (done) {
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connection.execute(
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'begin \n' +
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' open :cursor for select employees_name from nodb_rs2stream; \n' +
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'end;',
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{
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cursor: { type: oracledb.CURSOR, dir : oracledb.BIND_OUT }
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},
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function(err, result) {
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should.not.exist(err);
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var cursor = result.outBinds.cursor;
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cursor.close(function(err) {
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should.not.exist(err);
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done();
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});
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try {
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cursor.toQueryStream();
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} catch (err) {
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(err.message).should.startWith('NJS-041:');
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}
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}
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);
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});
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it('15.2.4 should prevent invoking getRow after conversion to stream', function (done) {
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connection.execute(
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'begin \n' +
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' open :cursor for select employees_name from nodb_rs2stream; \n' +
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'end;',
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{
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cursor: { type: oracledb.CURSOR, dir : oracledb.BIND_OUT }
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},
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function(err, result) {
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should.not.exist(err);
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var cursor = result.outBinds.cursor;
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var stream = cursor.toQueryStream();
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cursor.getRow(function(err) {
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(err.message).should.startWith('NJS-042:');
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// NJS-042: cannot invoke methods after converting to stream
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// Closing cursor via stream._close because the cursor.close method
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// is not invokable after conversion to stream.
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stream._close(function(err) {
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should.not.exist(err);
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done();
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});
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});
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}
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);
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});
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it('15.2.5 should prevent invoking getRows after conversion to stream', function (done) {
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connection.execute(
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'begin \n' +
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' open :cursor for select employees_name from nodb_rs2stream; \n' +
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'end;',
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{
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cursor: { type: oracledb.CURSOR, dir : oracledb.BIND_OUT }
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},
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function(err, result) {
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should.not.exist(err);
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var cursor = result.outBinds.cursor;
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var stream = cursor.toQueryStream();
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cursor.getRows(5, function(err) {
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(err.message).should.startWith('NJS-042:');
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// Closing cursor via stream._close because the cursor.close method
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// is not invokable after conversion to stream.
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stream._close(function(err) {
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should.not.exist(err);
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done();
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});
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});
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}
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);
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});
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it('15.2.6 should prevent invoking close after conversion to stream', function (done) {
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connection.execute(
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'begin \n' +
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' open :cursor for select employees_name from nodb_rs2stream; \n' +
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'end;',
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{
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cursor: { type: oracledb.CURSOR, dir : oracledb.BIND_OUT }
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},
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function(err, result) {
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should.not.exist(err);
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var cursor = result.outBinds.cursor;
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var stream = cursor.toQueryStream();
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cursor.close(function(err) {
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(err.message).should.startWith('NJS-042:');
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// Closing cursor via stream._close because the cursor.close method
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// is not invokable after conversion to stream.
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stream._close(function(err) {
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should.not.exist(err);
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done();
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});
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});
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}
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);
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});
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it('15.2.7 should prevent calling toQueryStream more than once', function (done) {
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connection.execute(
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'begin \n' +
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' open :cursor for select employees_name from nodb_rs2stream; \n' +
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'end;',
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{
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cursor: { type: oracledb.CURSOR, dir : oracledb.BIND_OUT }
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},
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function(err, result) {
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should.not.exist(err);
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var cursor = result.outBinds.cursor;
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// First conversion to stream
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var stream = cursor.toQueryStream();
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try {
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// Second conversion to stream
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stream = cursor.toQueryStream();
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} catch (err) {
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(err.message).should.startWith('NJS-043:');
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stream._close(function(err) {
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should.not.exist(err);
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done();
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});
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}
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}
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);
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}); // 15.2.7
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}); // 15.2
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});
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