Fixed exponent check condition for out-of-bounds number(Issue #1659)

Author: sharadraju

doc/src/release_notes.rst

@@ -7,6 +7,15 @@ node-oracledb Release Notes
 
 For deprecated and desupported features, see :ref:`Deprecations and desupported features <deprecations>`.
 
+node-oracledb `v6.5.1 <https://github.com/oracle/node-oracledb/compare/v6.5.0...v6.5.1>`__ (TBD)
+-------------------------------------------------------------------------------------------------------
+
+Thin Mode Changes
++++++++++++++++++
+
+#) Fixed exponent check condition for out-of-bounds number.
+   See `Issue #1659 <https://github.com/oracle/node-oracledb/issues/1659>`__.
+
 node-oracledb `v6.5.0 <https://github.com/oracle/node-oracledb/compare/v6.4.0...v6.5.0>`__ (2 May 2024)
 -------------------------------------------------------------------------------------------------------
 

lib/impl/datahandlers/buffer.js

@@ -843,8 +843,8 @@ class BaseBuffer {
     }
 
     // throw exception if number cannot be represented as an Oracle Number
-    if (value.length > constants.NUMBER_MAX_DIGITS || exponent > 126 ||
-        exponent < -129) {
+    if (value.length > constants.NUMBER_MAX_DIGITS || exponent >= 126 ||
+        exponent <= -131) {
       errors.throwErr(errors.ERR_ORACLE_NUMBER_NO_REPR);
     }
 

test/invalidNumber.js

@@ -38,7 +38,7 @@ const testsUtil = require('./testsUtil.js');
 
 describe('299. invalidNumber.js', function() {
   let conn;
-  let tableName = 'nodb_num';
+  const tableName = 'nodb_num';
 
   before(async function() {
     conn = await oracledb.getConnection(dbConfig);
@@ -51,8 +51,8 @@ describe('299. invalidNumber.js', function() {
     await conn.close();
   });
 
-  it('299.1 throws error for invalid numbers', async () => {
-    const idv = 1e+131;
+  it('299.1 throws error for invalid numbers(largest exponent + 1)', async () => {
+    const idv = 1e+126;
     const sql = 'INSERT INTO nodb_num VALUES(:cid)';
     const binds = { cid: { val: idv, type: oracledb.NUMBER}};
     await assert.rejects(
@@ -61,4 +61,14 @@ describe('299. invalidNumber.js', function() {
     );
   }); // 299.1
 
+  it('299.2 throws error for invalid numbers(smallest exponent - 1)', async () => {
+    const idv = 1e-131;
+    const sql = 'INSERT INTO nodb_num VALUES(:cid)';
+    const binds = { cid: { val: idv, type: oracledb.NUMBER}};
+    await assert.rejects(
+      async () => await conn.execute(sql, binds),
+      /NJS-115:/
+    );
+  }); // 299.2
+
 });

test/list.txt

@@ -5832,7 +5832,8 @@ oracledb.OUT_FORMAT_OBJECT and resultSet =  true
     298.10 no parallel delete operation on vector columns
 
   299. invalidNumber.js
-    299.1 throws error for invalid numbers
+    299.1 throws error for invalid numbers(largest exponent + 1)
+    299.2 throws error for invalid numbers(smallest exponent - 1)
 
   300. bigInt.js
     300.1 can bind bigInts