457 lines
14 KiB
JavaScript
457 lines
14 KiB
JavaScript
/* Copyright (c) 2016, 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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* 86. fetchClobAsString.js
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*
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* DESCRIPTION
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* Testing Oracle data type support - CLOB.
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* To fetch CLOB columns as strings
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* This could be very useful for smaller CLOB size as it can be fetched as string and processed in memory itself.
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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 async = require('async');
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var should = require('should');
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var dbConfig = require('./dbconfig.js');
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var random = require('./random.js');
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describe('86. fetchClobAsString3.js', function() {
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var connection = null;
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var insertID = 1; // assume id for insert into db starts from 1
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var proc_create_table2 = "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_clob2 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_clob2 ( \n" +
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" ID NUMBER, \n" +
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" C1 CLOB, \n" +
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" C2 CLOB \n" +
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" ) \n" +
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" '); \n" +
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"END; ";
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var drop_table2 = "DROP TABLE nodb_clob2 PURGE";
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var defaultStmtCache = oracledb.stmtCacheSize;
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before('get one connection', function(done) {
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oracledb.stmtCacheSize = 0;
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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('release connection', function(done) {
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oracledb.stmtCacheSize = defaultStmtCache;
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connection.release(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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var insertIntoClobTable2 = function(id, content1, content2, callback) {
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connection.execute(
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"INSERT INTO nodb_clob2 VALUES (:ID, :C1, :C2)",
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[ id, content1, content2 ],
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function(err, result){
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should.not.exist(err);
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should.strictEqual(result.rowsAffected, 1);
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callback();
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}
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);
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};
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describe('86.1 fetch multiple CLOBs and result set', function() {
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before('create Table and populate', function(done) {
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connection.execute(
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proc_create_table2,
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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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}); // before
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after('drop table', function(done) {
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oracledb.fetchAsString = [];
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connection.execute(
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drop_table2,
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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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}); // after
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beforeEach('set oracledb.fetchAsString', function(done) {
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oracledb.fetchAsString = [ oracledb.CLOB ];
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done();
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}); // beforeEach
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afterEach('clear the By type specification', function(done) {
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oracledb.fetchAsString = [];
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done();
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}); // afterEach
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it('86.1.1 fetch multiple CLOB columns as String', function(done) {
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var id = insertID++;
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var specialStr_1 = '86.1.1_1';
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var contentLength_1 = 26;
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var content_1 = random.getRandomString(contentLength_1, specialStr_1);
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var specialStr_2 = '86.1.1_2';
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var contentLength_2 = 100;
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var content_2 = random.getRandomString(contentLength_2, specialStr_2);
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async.series([
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function(cb) {
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insertIntoClobTable2(id, content_1, content_2, cb);
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},
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function(cb) {
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connection.execute(
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"SELECT ID, C1, C2 from nodb_clob2",
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function(err, result){
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should.not.exist(err);
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var specialStrLen_1 = specialStr_1.length;
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var resultLen_1 = result.rows[0][1].length;
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should.equal(result.rows[0][1].length, contentLength_1);
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should.strictEqual(result.rows[0][1].substring(0, specialStrLen_1), specialStr_1);
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should.strictEqual(result.rows[0][1].substring(resultLen_1 - specialStrLen_1, resultLen_1), specialStr_1);
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var specialStrLen_2 = specialStr_2.length;
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var resultLen_2 = result.rows[0][2].length;
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should.equal(result.rows[0][2].length, contentLength_2);
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should.strictEqual(result.rows[0][2].substring(0, specialStrLen_2), specialStr_2);
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should.strictEqual(result.rows[0][2].substring(resultLen_2 - specialStrLen_2, resultLen_2), specialStr_2);
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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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}); // 86.1.1
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it('86.1.2 fetch two CLOB columns, one as string, another streamed', function(done) {
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var id = insertID++;
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var specialStr_1 = '86.1.2_1';
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var contentLength_1 = 30;
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var content_1 = random.getRandomString(contentLength_1, specialStr_1);
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var specialStr_2 = '86.1.2_2';
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var contentLength_2 = 50;
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var content_2 = random.getRandomString(contentLength_2, specialStr_2);
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async.series([
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function(cb) {
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insertIntoClobTable2(id, content_1, content_2, cb);
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},
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function(cb) {
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connection.execute(
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"SELECT ID, C1 from nodb_clob2 where ID = :id",
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{ id: id },
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function(err, result){
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should.not.exist(err);
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var specialStrLen_1 = specialStr_1.length;
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var resultLen_1 = result.rows[0][1].length;
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should.equal(result.rows[0][1].length, contentLength_1);
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should.strictEqual(result.rows[0][1].substring(0, specialStrLen_1), specialStr_1);
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should.strictEqual(result.rows[0][1].substring(resultLen_1 - specialStrLen_1, resultLen_1), specialStr_1);
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cb();
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}
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);
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},
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function(cb) {
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oracledb.fetchAsString = [];
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connection.execute(
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"SELECT C2 from nodb_clob2 where ID = :id",
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{ id: id },
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function(err, result){
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should.not.exist(err);
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(result.rows.length).should.not.eql(0);
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var lob = result.rows[0][0];
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should.exist(lob);
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// set the encoding so we get a 'string' not a 'String'
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lob.setEncoding('utf8');
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var clobData = '';
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lob.on('data', function(chunk) {
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clobData += chunk;
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});
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lob.on('error', function(err) {
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should.not.exist(err, "lob.on 'error' event.");
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});
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lob.on('end', function() {
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should.not.exist(err);
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var specialStrLen_2 = specialStr_2.length;
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var resultLen_2 = clobData.length;
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should.equal(clobData.length, contentLength_2);
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should.strictEqual(clobData.substring(0, specialStrLen_2), specialStr_2);
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should.strictEqual(clobData.substring(resultLen_2 - specialStrLen_2, resultLen_2), specialStr_2);
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cb();
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});
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}
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);
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}
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], done);
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}); // 86.1.2
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it('86.1.3 works with Restult Set', function(done) {
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var id = insertID++;
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var specialStr_1 = '86.1.3';
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var contentLength_1 = 387;
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var content_1 = random.getRandomString(contentLength_1, specialStr_1);
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async.series([
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function(cb) {
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var sql = "insert into nodb_clob2(id, c1) values (:i, :c)";
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connection.execute(
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sql,
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{
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i: id,
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c: content_1
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},
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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(cb) {
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connection.execute(
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"select c1 from nodb_clob2 where id = :1",
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[id],
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{ resultSet: true },
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function(err, result) {
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should.not.exist(err);
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fetchOneRowFromRS(result.resultSet, cb);
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}
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);
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}
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], done);
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var fetchOneRowFromRS = function(rs, callback) {
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rs.getRow(
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function(err, row) {
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if (err) {
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should.not.exist(err);
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doClose(rs, callback);
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} else if (!row) {
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doClose(rs, callback);
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} else {
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var specialStrLen_1 = specialStr_1.length;
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var resultLen_1 = row[0].length;
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should.equal(row[0].length, contentLength_1);
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should.strictEqual(
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row[0].substring(0, specialStrLen_1),
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specialStr_1
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);
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should.strictEqual(
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row[0].substring(resultLen_1 - specialStrLen_1, resultLen_1),
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specialStr_1
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);
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fetchOneRowFromRS(rs, callback);
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}
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}
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);
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};
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var doClose = function(rs, callback) {
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rs.close(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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}); // 86.1.3
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}); // 86.1
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describe('86.2 types support for fetchAsString property', function() {
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afterEach ('clear the by-type specification', function ( done ) {
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oracledb.fetchAsString = [];
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done ();
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});
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it('86.2.1 String not supported in fetchAsString', function(done) {
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should.throws(
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function() {
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oracledb.fetchAsString = [ oracledb.STRING ];
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},
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/NJS-021: invalid type for conversion specified/
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);
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done();
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}); // 86.2.1
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it('86.2.2 BLOB not supported in fetchAsString', function(done) {
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should.throws(
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function() {
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oracledb.fetchAsString = [ oracledb.BLOB ];
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},
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/NJS-021: invalid type for conversion specified/
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);
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done();
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}); // 86.2.2
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it('86.2.3 Cursor not supported in fetchAsString', function(done) {
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should.throws(
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function() {
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oracledb.fetchAsString = [ oracledb.CURSOR ];
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},
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/NJS-021: invalid type for conversion specified/
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);
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done();
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}); // 86.2.3
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it('86.2.4 Buffer supported in fetchAsString', function(done) {
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should.doesNotThrow(
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function() {
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oracledb.fetchAsString = [ oracledb.BUFFER ];
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}
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);
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should.strictEqual(oracledb.fetchAsString.length, 1);
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should.strictEqual(oracledb.fetchAsString[0], oracledb.BUFFER);
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done();
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}); // 86.2.4
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it('86.2.5 Number supported in fetchAsString', function(done) {
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should.doesNotThrow(
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function() {
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oracledb.fetchAsString = [ oracledb.NUMBER ];
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}
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);
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should.strictEqual(oracledb.fetchAsString.length, 1);
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should.strictEqual(oracledb.fetchAsString[0], oracledb.NUMBER);
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done();
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}); // 86.2.5
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it('86.2.6 Date supported in fetchAsString', function(done) {
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should.doesNotThrow(
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function() {
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oracledb.fetchAsString = [ oracledb.DATE ];
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}
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);
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should.strictEqual(oracledb.fetchAsString.length, 1);
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should.strictEqual(oracledb.fetchAsString[0], oracledb.DATE);
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done();
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}); // 86.2.6
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it('86.2.7 CLOB supported in fetchAsString', function(done) {
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should.doesNotThrow(
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function() {
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oracledb.fetchAsString = [ oracledb.CLOB ];
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}
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);
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should.strictEqual(oracledb.fetchAsString.length, 1);
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should.strictEqual(oracledb.fetchAsString[0], oracledb.CLOB);
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done();
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}); // 86.2.7
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it('86.2.8 undefined in fetchAsString will throw NJS-004', function() {
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should.throws(
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function() {
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oracledb.fetchAsString = [ undefined ];
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},
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/NJS-004:/
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);
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}); // 86.2.8
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it('86.2.9 Random string in fetchAsString will throw NJS-004', function() {
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should.throws(
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function() {
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oracledb.fetchAsString = [ "foobar" ];
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},
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/NJS-004:/
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);
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}); // 86.2.9
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it('86.2.10 Random integer in fetchAsString will throw NJS-021', function() {
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should.throws(
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function() {
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oracledb.fetchAsString = [ 31415 ];
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},
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/NJS-021:/ // NJS-021: invalid type for conversion specified
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);
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}); // 86.2.10
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it('86.2.11 Negative integer in fetchAsString will throw NJS-004', function() {
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should.throws(
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function() {
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oracledb.fetchAsString = [ -1 ];
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},
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/NJS-004:/
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);
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}); // 86.2.11
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it('86.2.12 Random float in fetchAsString will throw NJS-004', function() {
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should.throws(
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function() {
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oracledb.fetchAsString = [ 3.1415 ];
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},
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/NJS-004:/
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);
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}); // 86.2.12
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it('86.2.13 Array in fetchAsString will throw NJS-004', function() {
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should.throws(
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function() {
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oracledb.fetchAsString = [ [3] ];
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},
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/NJS-004:/
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);
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}); // 86.2.13
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it('86.2.14 Object in fetchAsString will throw NJS-004', function() {
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should.throws(
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function() {
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oracledb.fetchAsString = [ {1:1} ];
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},
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/NJS-004:/
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);
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}); // 86.2.14
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it('86.2.15 Non-Array as fetchAsString will throw NJS-004', function() {
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should.throws(
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function() {
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oracledb.fetchAsString = 1;
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},
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/NJS-004:/
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);
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}); // 86.2.15
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}); // 86.2
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});
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