274 lines
8.6 KiB
JavaScript
274 lines
8.6 KiB
JavaScript
/* Copyright (c) 2015, 2022, Oracle and/or its affiliates. */
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/******************************************************************************
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*
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* This software is dual-licensed to you under the Universal Permissive License
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* (UPL) 1.0 as shown at https://oss.oracle.com/licenses/upl and Apache License
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* 2.0 as shown at https://www.apache.org/licenses/LICENSE-2.0. You may choose
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* either license.
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*
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* If you elect to accept the software under the Apache License, Version 2.0,
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* the following applies:
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* https://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,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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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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* NAME
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* 41. dataTypeBlob.js
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*
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* DESCRIPTION
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* Testing Oracle data type support - BLOB.
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* This test corresponds to example files:
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* blobinsert1.js, blobstream1.js and blobstream2.js
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* Firstly, Loads an image data and INSERTs it into a BLOB column.
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* Secondly, SELECTs the BLOB and pipes it to a file, blobstreamout.jpg
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* Thirdly, SELECTs the BLOB and compares it with the original image
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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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var assist = require('./dataTypeAssist.js');
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var inFileName = 'test/fuzzydinosaur.jpg'; // contains the image to be inserted
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var outFileName = 'test/blobstreamout.jpg';
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describe('41. dataTypeBlob.js', function() {
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var connection = null;
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var tableName = "nodb_myblobs";
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before('get one connection', function(done) {
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oracledb.getConnection(dbConfig,
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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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done();
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}
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);
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});
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after('release connection', function(done) {
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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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});
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describe('41.1 testing BLOB data type', function() {
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before('create table', function(done) {
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assist.createTable(connection, tableName, done);
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});
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after(function(done) {
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connection.execute(
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"DROP table " + tableName + " PURGE",
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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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});
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it('41.1.1 stores BLOB value correctly', function(done) {
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connection.should.be.ok();
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async.series([
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function blobinsert1(callback) {
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connection.execute(
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"INSERT INTO nodb_myblobs (num, content) VALUES (:n, EMPTY_BLOB()) RETURNING content INTO :lobbv",
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{ n: 2, lobbv: {type: oracledb.BLOB, dir: oracledb.BIND_OUT} },
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{ autoCommit: false }, // a transaction needs to span the INSERT and pipe()
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function(err, result) {
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should.not.exist(err);
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(result.rowsAffected).should.be.exactly(1);
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(result.outBinds.lobbv.length).should.be.exactly(1);
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var inStream = fs.createReadStream(inFileName);
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inStream.on('error', function(err) {
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should.not.exist(err, "inStream.on 'end' event");
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});
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var lob = result.outBinds.lobbv[0];
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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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inStream.pipe(lob); // pipes the data to the BLOB
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lob.on('finish', function() {
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connection.commit(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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);
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},
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function blobstream1(callback) {
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connection.execute(
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"SELECT content FROM nodb_myblobs WHERE num = :n",
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{ n: 2 },
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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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should.exist(lob);
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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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var outStream = fs.createWriteStream(outFileName);
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outStream.on('error', function(err) {
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should.not.exist(err, "outStream.on 'error' event");
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});
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lob.pipe(outStream);
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outStream.on('finish', function() {
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fs.readFile(inFileName, function(err, originalData) {
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should.not.exist(err);
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fs.readFile(outFileName, function(err, generatedData) {
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should.not.exist(err);
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originalData.should.eql(generatedData);
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callback();
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});
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});
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}); // finish event
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}
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);
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},
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function blobstream2(callback) {
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connection.execute(
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"SELECT content FROM nodb_myblobs WHERE num = :n",
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{ n: 2 },
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function(err, result) {
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should.not.exist(err);
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var blob = Buffer.alloc(0);
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var blobLength = 0;
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var lob = result.rows[0][0];
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should.exist(lob);
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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('data', function(chunk) {
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blobLength = blobLength + chunk.length;
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blob = Buffer.concat([blob, chunk], blobLength);
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});
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lob.on('end', function() {
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fs.readFile(inFileName, function(err, data) {
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should.not.exist(err);
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data.length.should.be.exactly(blob.length);
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data.should.eql(blob);
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callback();
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});
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}); // close event
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}
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);
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},
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function deleteOutFile(callback) {
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fs.unlink(outFileName, 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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}); // 41.1.1
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it('41.1.2 BLOB getData()', function(done) {
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connection.should.be.ok();
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async.series([
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function blobinsert1(callback) {
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connection.execute(
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"INSERT INTO nodb_myblobs (num, content) VALUES (:n, EMPTY_BLOB()) RETURNING content INTO :lobbv",
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{ n: 3, lobbv: {type: oracledb.BLOB, dir: oracledb.BIND_OUT} },
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{ autoCommit: false }, // a transaction needs to span the INSERT and pipe()
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function(err, result) {
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should.not.exist(err);
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(result.rowsAffected).should.be.exactly(1);
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(result.outBinds.lobbv.length).should.be.exactly(1);
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var inStream = fs.createReadStream(inFileName);
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inStream.on('error', function(err) {
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should.not.exist(err, "inStream.on 'end' event");
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});
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var lob = result.outBinds.lobbv[0];
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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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inStream.pipe(lob); // pipes the data to the BLOB
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lob.on('finish', function() {
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connection.commit(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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);
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},
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function blobstream2(callback) {
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connection.execute(
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"SELECT content FROM nodb_myblobs WHERE num = :n",
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{ n: 3 },
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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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should.exist(lob);
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fs.readFile(inFileName, function(err, data) {
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should.not.exist(err);
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lob.getData(function(err, blob) {
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data.length.should.be.exactly(blob.length);
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data.should.eql(blob);
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callback();
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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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}); // 41.1.2
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}); //41.1
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describe('41.2 stores null value correctly', function() {
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it('41.2.1 testing Null, Empty string and Undefined', function(done) {
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assist.verifyNullValues(connection, tableName, done);
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});
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});
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});
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