224 lines
8.2 KiB
JavaScript
224 lines
8.2 KiB
JavaScript
/* Copyright (c) 2021, 2023, Oracle and/or its affiliates. */
|
|
|
|
/******************************************************************************
|
|
*
|
|
* This software is dual-licensed to you under the Universal Permissive License
|
|
* (UPL) 1.0 as shown at https://oss.oracle.com/licenses/upl and Apache License
|
|
* 2.0 as shown at https://www.apache.org/licenses/LICENSE-2.0. You may choose
|
|
* either license.
|
|
*
|
|
* If you elect to accept the software under the Apache License, Version 2.0,
|
|
* the following applies:
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* https://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*
|
|
* NAME
|
|
* 245. fetchLobAsStrBuf.js
|
|
*
|
|
* DESCRIPTION
|
|
* Testing CLOB binding as String with DML and Blob binding as Buffer with DML
|
|
*
|
|
*****************************************************************************/
|
|
'use strict';
|
|
|
|
const oracledb = require('oracledb');
|
|
const assert = require('assert');
|
|
const dbConfig = require('./dbconfig.js');
|
|
const random = require('./random.js');
|
|
|
|
describe('245. fetchLobAsStrBuf.js', function() {
|
|
let connection = null;
|
|
let insertID = 1;
|
|
const tableName = "fetchLobAsStrBuf_table";
|
|
const fun_create_table = "BEGIN \n" +
|
|
" DECLARE \n" +
|
|
" e_table_missing EXCEPTION; \n" +
|
|
" PRAGMA EXCEPTION_INIT(e_table_missing, -00942);\n" +
|
|
" BEGIN \n" +
|
|
" EXECUTE IMMEDIATE ('DROP TABLE " + tableName + " PURGE' ); \n" +
|
|
" EXCEPTION \n" +
|
|
" WHEN e_table_missing \n" +
|
|
" THEN NULL; \n" +
|
|
" END; \n" +
|
|
" EXECUTE IMMEDIATE ( ' \n" +
|
|
" CREATE TABLE " + tableName + " ( \n" +
|
|
" id NUMBER, \n" +
|
|
" clob_col clob, \n" +
|
|
" blob_col blob \n" +
|
|
" ) \n" +
|
|
" '); \n" +
|
|
"END; ";
|
|
const drop_table = "DROP TABLE " + tableName + " PURGE";
|
|
|
|
before(async function() {
|
|
connection = await oracledb.getConnection(dbConfig);
|
|
});
|
|
|
|
after(async function() {
|
|
await connection.close();
|
|
});
|
|
|
|
const executeSQL = async function(sql) {
|
|
await connection.execute(sql);
|
|
};
|
|
|
|
const insertIntoTable = async function(id, contentClob, contentBlob) {
|
|
let result = null;
|
|
if (contentClob == "EMPTY_CLOB" && contentBlob == "EMPTY_BLOB") {
|
|
result = await connection.execute("insert INTO fetchLobAsStrBuf_table values(:id, EMPTY_CLOB(), EMPTY_BLOB())",
|
|
[ id ]);
|
|
assert.strictEqual(result.rowsAffected, 1);
|
|
} else {
|
|
const sql = "insert into fetchLobAsStrBuf_table (id, clob_col, blob_col) values(:id, :str, :buf)";
|
|
const bindings = {
|
|
id: { val: id },
|
|
str: {val: contentClob, type: oracledb.STRING, dir: oracledb.BIND_IN},
|
|
buf: {val: contentBlob, type: oracledb.BUFFER, dir: oracledb.BIND_IN}
|
|
};
|
|
result = await connection.execute(sql, bindings);
|
|
assert.strictEqual(result.rowsAffected, 1);
|
|
}
|
|
};
|
|
|
|
const checkInsertResult = async function(id, contentClob, specialStr, contentBlob) {
|
|
|
|
let sql = "select clob_col from fetchLobAsStrBuf_table where id = " + id;
|
|
await verifyClobValueWithString(sql, contentClob, specialStr);
|
|
|
|
sql = "select blob_col from fetchLobAsStrBuf_table where id = " + id;
|
|
await verifyBlobValueWithBuffer(sql, contentBlob, specialStr);
|
|
};
|
|
|
|
const verifyClobValueWithString = async function(selectSql, originalString, specialStr) {
|
|
let result = null;
|
|
result = await connection.execute(selectSql);
|
|
|
|
const lob = result.rows[0][0];
|
|
if (originalString == '' || originalString == undefined || originalString == null) {
|
|
assert.ifError(lob);
|
|
} else {
|
|
assert(lob);
|
|
// set the encoding so we get a 'string' not a 'buffer'
|
|
lob.setEncoding('utf8');
|
|
let clobData = '';
|
|
await new Promise((resolve, reject) => {
|
|
lob.on('data', function(chunk) {
|
|
clobData += chunk;
|
|
});
|
|
|
|
lob.on('error', function(err) {
|
|
assert.ifError(err, "lob.on 'error' event.");
|
|
reject();
|
|
});
|
|
|
|
lob.on('end', function(err) {
|
|
assert.ifError(err);
|
|
if (originalString == "EMPTY_CLOB") {
|
|
assert.strictEqual(clobData, "");
|
|
} else {
|
|
const resultLength = clobData.length;
|
|
const specStrLength = specialStr.length;
|
|
assert.strictEqual(resultLength, originalString.length);
|
|
assert.strictEqual(clobData.substring(0, specStrLength), specialStr);
|
|
assert.strictEqual(clobData.substring(resultLength - specStrLength, resultLength), specialStr);
|
|
}
|
|
resolve();
|
|
});
|
|
});
|
|
}
|
|
};
|
|
|
|
const verifyBlobValueWithBuffer = async function(selectSql, originalBuffer, specialStr) {
|
|
let result = null;
|
|
result = await connection.execute(selectSql);
|
|
const lob = result.rows[0][0];
|
|
if (originalBuffer == '' || originalBuffer == undefined) {
|
|
assert.ifError(lob);
|
|
} else {
|
|
assert(lob);
|
|
let blobData = Buffer.alloc(0);
|
|
let totalLength = 0;
|
|
await new Promise((resolve, reject) => {
|
|
lob.on('data', function(chunk) {
|
|
totalLength = totalLength + chunk.length;
|
|
blobData = Buffer.concat([blobData, chunk], totalLength);
|
|
});
|
|
|
|
lob.on('error', function(err) {
|
|
assert.ifError(err, "lob.on 'error' event.");
|
|
reject();
|
|
});
|
|
|
|
lob.on('end', function() {
|
|
if (originalBuffer == "EMPTY_BLOB") {
|
|
const nullBuffer = Buffer.from('', "utf-8");
|
|
assert.deepStrictEqual(blobData, nullBuffer);
|
|
} else {
|
|
assert.strictEqual(totalLength, originalBuffer.length);
|
|
const specStrLength = specialStr.length;
|
|
assert.strictEqual(blobData.toString('utf8', 0, specStrLength), specialStr);
|
|
assert.strictEqual(blobData.toString('utf8', (totalLength - specStrLength), totalLength), specialStr);
|
|
assert.deepStrictEqual(blobData, originalBuffer);
|
|
}
|
|
resolve();
|
|
});
|
|
});
|
|
}
|
|
};
|
|
|
|
describe('245.1 CLOB,BLOB Insert', function() {
|
|
|
|
before(async function() {
|
|
await executeSQL(fun_create_table);
|
|
});
|
|
|
|
after(async function() {
|
|
await executeSQL(drop_table);
|
|
});
|
|
|
|
it('245.1.1 Insert and fetch CLOB,BLOB with EMPTY_CLOB and EMPTY_BLOB', async function() {
|
|
const id = insertID++;
|
|
const contentClob = "EMPTY_CLOB";
|
|
const contentBlob = "EMPTY_BLOB";
|
|
|
|
await insertIntoTable(id, contentClob, contentBlob);
|
|
|
|
await checkInsertResult(id, contentClob, null, contentBlob);
|
|
});
|
|
|
|
it('245.1.2 Insert and fetch CLOB,BLOB with String and Buffer of length 32K', async function() {
|
|
const id = insertID++;
|
|
const contentLength = 32768;
|
|
const specialStr = "245.1.2";
|
|
const contentClob = random.getRandomString(contentLength, specialStr);
|
|
const contentBlob = Buffer.from(contentClob, "utf-8");
|
|
|
|
await insertIntoTable(id, contentClob, contentBlob);
|
|
|
|
await checkInsertResult(id, contentClob, specialStr, contentBlob);
|
|
});
|
|
|
|
it('245.1.3 Insert and fetch CLOB,BLOB with String and Buffer of length (1MB + 1)', async function() {
|
|
const id = insertID++;
|
|
const contentLength = 1048577;
|
|
const specialStr = "245.1.2";
|
|
const contentClob = random.getRandomString(contentLength, specialStr);
|
|
const contentBlob = Buffer.from(contentClob, "utf-8");
|
|
|
|
await insertIntoTable(id, contentClob, contentBlob);
|
|
|
|
await checkInsertResult(id, contentClob, specialStr, contentBlob);
|
|
});
|
|
});
|
|
});
|