158 lines
4.6 KiB
JavaScript
158 lines
4.6 KiB
JavaScript
/* Copyright (c) 2017, 2018, 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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* 105. streamErrorEvent.js
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*
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* DESCRIPTION
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* Testing Stream on 'error' event.
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* It tries to stream LOB into a read-only file which triggers error.
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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 fs = require('fs');
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var async = require('async');
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var should = require('should');
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var dbConfig = require('./dbconfig.js');
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describe('105. streamErrorEvent.js', function() {
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var connection = null;
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before(function(done) {
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oracledb.getConnection(dbConfig, function(err, conn) {
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should.not.exist(err);
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connection = conn;
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done();
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});
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}); // before
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after(function(done) {
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connection.close(function(err) {
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should.not.exist(err);
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done();
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});
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}); // after
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it('105.1 triggers stream error event', function(done) {
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var rofile = "./test-read-only.txt";
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var tableName = "nodb_tab_stream_err";
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async.series([
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function createFile(cb) {
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fs.writeFile(rofile, "This is a read-only file.", 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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function changeMode(cb) {
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fs.chmod(rofile, '0444', 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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function createTable(cb) {
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var sql = "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 " + tableName + " 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 " + tableName + " ( \n" +
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" id NUMBER, \n" +
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" lob 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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sql,
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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 doinsert(cb) {
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var sql = "insert into " + tableName + " values (:i, :c)";
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var bindvar = {
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i: { val: 89, type: oracledb.NUMBER },
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c: { val: "Changjie tries to trigger Stream error events.", type: oracledb.STRING }
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};
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var option = { autoCommit: true };
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connection.execute(
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sql,
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bindvar,
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option,
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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 triggerError(callback) {
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var sql = "select lob from " + tableName;
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connection.execute(
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sql,
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function(err, result) {
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should.not.exist(err);
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var lob = result.rows[0][0];
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lob.on('error', function(err) {
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should.not.exist(err);
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});
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lob.on('close', callback); // Here it returns.
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var outStream = fs.createWriteStream(rofile);
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outStream.on('error', function(err) {
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should.exist(err);
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should.strictEqual(err.syscall, 'open');
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});
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lob.pipe(outStream);
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}
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);
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},
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function dropTable(cb) {
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var sql = "DROP TABLE " + tableName + " PURGE";
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connection.execute(
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sql,
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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 deleteFile(cb) {
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fs.unlink(rofile, 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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], done);
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});
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});
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