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// DataReaderTest.cs - NUnit Test Cases for testing the
// DataReader family of classes
//
// Authors:
// Sureshkumar T (tsureshkumar@novell.com)
//
// Copyright (c) 2004 Novell Inc., and the individuals listed on the
// ChangeLog entries.
//
//
// Permission is hereby granted, free of charge, to any person
// obtaining a copy of this software and associated documentation
// files (the "Software"), to deal in the Software without
// restriction, including without limitation the rights to use, copy,
// modify, merge, publish, distribute, sublicense, and/or sell copies
// of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
// BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
// ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
// CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE.
using System;
using System.Data;
using System.Data.Common;
using Mono.Data;
using NUnit.Framework;
namespace MonoTests.System.Data
{
[TestFixture]
[Category ("odbc"), Category ("sqlserver")]
public class DataReaderTest
{
[Test]
public void GetSchemaTableTest ()
{
IDbConnection conn = ConnectionManager.Singleton.Connection;
try {
ConnectionManager.Singleton.OpenConnection ();
IDbCommand cmd = conn.CreateCommand ();
cmd.CommandText = "select id, fname, id + 20 as plustwenty from employee";
IDataReader reader = cmd.ExecuteReader (CommandBehavior.SchemaOnly | CommandBehavior.KeyInfo);
DataTable schema = reader.GetSchemaTable ();
reader.Close ();
Assert.AreEqual (3, schema.Rows.Count, "#1");
// Primary Key Test
DataRow pkRow = schema.Select ("ColumnName = 'id'") [0];
Assert.AreEqual (false, pkRow.IsNull ("IsKey"), "#2");
Assert.AreEqual (true, (bool) pkRow ["IsKey"], "#3");
} finally {
ConnectionManager.Singleton.CloseConnection ();
}
}
[Test]
public void GetNameTest ()
{
IDbConnection conn = ConnectionManager.Singleton.Connection;
try {
ConnectionManager.Singleton.OpenConnection ();
IDbCommand dbcmd = conn.CreateCommand ();
string sql = "SELECT type_tinyint from numeric_family";
dbcmd.CommandText = sql;
using (IDataReader reader = dbcmd.ExecuteReader ()) {
Assert.AreEqual ("type_tinyint", reader.GetName (0), "#1 GetName failes");
}
} finally {
ConnectionManager.Singleton.CloseConnection ();
}
}
[Test]
public void NumericTest()
{
IDbConnection conn = ConnectionManager.Singleton.Connection;
try {
ConnectionManager.Singleton.OpenConnection ();
IDbCommand dbCommand = conn.CreateCommand ();
dbCommand.CommandText = "select type_numeric from numeric_family where id = 1;";
using(IDataReader reader = dbCommand.ExecuteReader ()) {
if (reader.Read()) {
object value = reader.GetValue(0);
Assert.AreEqual (typeof (decimal), value.GetType(), "#1 wrong type");
Assert.AreEqual ( (decimal) 1000, value, "#2 value is wrong");
} else
Assert.Fail ("#3 does not have test data");
}
} finally {
ConnectionManager.Singleton.CloseConnection ();
}
}
[Test]
public void TinyIntTest ()
{
IDbConnection conn = ConnectionManager.Singleton.Connection;
try {
ConnectionManager.Singleton.OpenConnection ();
IDbCommand dbCommand = conn.CreateCommand ();
dbCommand.CommandText = "select type_tinyint from numeric_family where id = 1;";
using(IDataReader reader = dbCommand.ExecuteReader ()) {
if (reader.Read()) {
object value = reader.GetValue (0);
Assert.AreEqual (typeof (byte), value.GetType(), "#1 wrong type");
Assert.AreEqual (255, value, "#2 value is wrong");
} else
Assert.Fail ("#3 does not have test data");
}
} finally {
ConnectionManager.Singleton.CloseConnection ();
}
}
[Test]
public void GetByteTest ()
{
IDbConnection conn = ConnectionManager.Singleton.Connection;
try {
ConnectionManager.Singleton.OpenConnection ();
IDbCommand cmd = conn.CreateCommand ();
string query = "select type_tinyint from numeric_family where id = 1";
cmd.CommandText = query;
using (IDataReader reader = cmd.ExecuteReader ()) {
if (reader.Read ()) {
byte b = reader.GetByte (0);
Assert.AreEqual (255, b, "GetByte returns wrong result");
} else // This should not happen while testing
Assert.Fail ("test table does not have a test data!");
}
} finally {
ConnectionManager.Singleton.CloseConnection ();
}
}
[Test]
public void GetValueBinaryTest ()
{
IDbConnection conn = ConnectionManager.Singleton.Connection;
try {
ConnectionManager.Singleton.OpenConnection ();
IDbCommand cmd = conn.CreateCommand ();
string sql = "select type_binary from binary_family where id = 1";
cmd.CommandText = sql;
using (IDataReader reader = cmd.ExecuteReader (CommandBehavior.SequentialAccess)) {
if (reader.Read ()) {
object ob = reader.GetValue (0);
Assert.AreEqual (typeof (byte []), ob.GetType (), "#1 Type of binary column is wrong!");
} else
Assert.Fail ("#2 test data not available");
}
} finally {
ConnectionManager.Singleton.CloseConnection ();
}
}
[Test]
public void GetBytesNullBufferTest ()
{
IDbConnection conn = ConnectionManager.Singleton.Connection;
try {
ConnectionManager.Singleton.OpenConnection ();
IDbCommand cmd = conn.CreateCommand ();
// 4th row is null
string sql = "SELECT type_blob FROM binary_family where id = 1 or id = 4 order by id";
cmd.CommandText = sql;
using (IDataReader reader = cmd.ExecuteReader (CommandBehavior.SequentialAccess)) {
if (reader.Read ()) {
Assert.AreEqual (8, reader.GetBytes (0, 0, null, 0, 0),
"#1 getbytes should return length of column");
} else
Assert.Fail ("#2 No test data");
// for null value, length in bytes should return 0
if (reader.Read ())
Assert.AreEqual (0, reader.GetBytes (0, 0, null, 0, 0),
"#3 on null value, it should return -1");
else
Assert.Fail ("#4 No test data");
}
} finally {
ConnectionManager.Singleton.CloseConnection ();
}
}
[Test]
public void GetBytesTest ()
{
IDbConnection conn = ConnectionManager.Singleton.Connection;
try {
ConnectionManager.Singleton.OpenConnection ();
IDbCommand cmd = conn.CreateCommand ();
string sql = "SELECT type_blob FROM binary_family where id = 1";
cmd.CommandText = sql;
using (IDataReader reader = cmd.ExecuteReader (CommandBehavior.SequentialAccess)) {
if (reader.Read ()) {
// Get By Parts for the column blob
long totalsize = reader.GetBytes (0, 0, null, 0, 0);
int buffsize = 5;
int start = 0;
int offset = 0;
long ret = 0;
long count = 0;
byte [] val = new byte [totalsize];
do {
ret = reader.GetBytes (0, offset, val, offset, buffsize);
offset += (int) ret;
count += ret;
} while (count < totalsize);
Assert.AreEqual (8, count,
"#1 The assembled value length does not match");
} else
Assert.Fail ("#2 no test data");
}
} finally {
ConnectionManager.Singleton.CloseConnection ();
}
}
}
}
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