dataTypeBinaryDouble.js

/* Copyright (c) 2015, 2016, Oracle and/or its affiliates. All rights reserved. */

/******************************************************************************
 *
 * You may not use the identified files except in compliance with the Apache
 * License, Version 2.0 (the "License.")
 *
 * You may obtain a copy of the License at
 * http://www.apache.org/licenses/LICENSE-2.0.
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 * 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.
 *
 * The node-oracledb test suite uses 'mocha', 'should' and 'async'.
 * See LICENSE.md for relevant licenses.
 *
 * NAME
 *   31. dataTypeBinaryDouble.js
 *
 * DESCRIPTION
 *    Testing Oracle data type support - BINARY_DOUBLE.
 *
 * NOTE
 *   BINARY_DOUBLE support is still under enhancement.
 *   There is precision issue. This test is suspended.
 *
 * NUMBERING RULE
 *   Test numbers follow this numbering rule:
 *     1  - 20  are reserved for basic functional tests
 *     21 - 50  are reserved for data type supporting tests
 *     51 onwards are for other tests
 *
 *****************************************************************************/
'use strict';

var oracledb = require('oracledb');
var should   = require('should');
var async    = require('async');
var assist   = require('./dataTypeAssist.js');
var dbConfig = require('./dbconfig.js');

describe('31. dataTypeBinaryDouble.js', function() {

  var connection = null;
  var tableName = "nodb_double";

  before('get one connection', function(done) {
    oracledb.getConnection(
      {
        user:          dbConfig.user,
        password:      dbConfig.password,
        connectString: dbConfig.connectString
      },
      function(err, conn) {
        should.not.exist(err);
        connection = conn;
        done();
      }
    );
  })

  after('release connection', function(done) {
    connection.release( function(err) {
      should.not.exist(err);
      done();
    });
  })

  describe('31.1 testing BINARY_DOUBLE data', function() {

    var numbers = assist.data.numbersForBinaryFloat.concat(assist.data.numbersForBinaryDouble);

    before('create table, insert data',function(done) {
      assist.setUp(connection, tableName, numbers, done);
    })

    after(function(done) {
      connection.execute(
        "DROP table " + tableName,
        function(err) {
          should.not.exist(err);
          done();
        }
      );
    })

    it('31.1.1 works well with SELECT query', function(done) {
      assist.dataTypeSupport(connection, tableName, numbers, done);
    })

    it('31.1.2 works well with result set', function(done) {
      assist.verifyResultSet(connection, tableName, numbers, done);
    })

    it('31.1.3 works well with REF Cursor', function(done) {
      assist.verifyRefCursor(connection, tableName, numbers, done);
    })

  })

  describe('31.2 stores null value correctly', function() {
    it('31.2.1 testing Null, Empty string and Undefined', function(done) {
      assist.verifyNullValues(connection, tableName, done);
    })
  })

  describe('31.3 testing floating-point numbers which cannot be precisely represent', function() {
    var nums =
    [
      0.00000123,
      98.7654321
    ];

    before('create table, insert data',function(done) {
      assist.setUp(connection, tableName, nums, done);
    })

    after(function(done) {
      connection.execute(
        "DROP table " + tableName,
        function(err) {
          should.not.exist(err);
          done();
        }
      );
    })

    it('31.3.1 rounding numbers', function(done) {
      connection.execute(
        "SELECT * FROM " + tableName,
        [],
        { outFormat: oracledb.OBJECT },
        function(err, result) {
          should.not.exist(err);

          for(var i = 0; i < nums.length; i++) {
            result.rows[i].CONTENT.should.not.be.exactly(nums[ result.rows[i].NUM ]);
            approxeq(result.rows[i].CONTENT, nums[ result.rows[i].NUM ]).should.be.ok();
          }
          done();
        }
      );
    })

    function approxeq(v1, v2)
    {
      var precision = 0.001;
      return Math.abs(v1 - v2) < precision;
    }
  }) // 31.3

})