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SqlQueryParserTests.cs
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executable file
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#region License
// The PostgreSQL License
//
// Copyright (C) 2015 The Npgsql Development Team
//
// Permission to use, copy, modify, and distribute this software and its
// documentation for any purpose, without fee, and without a written
// agreement is hereby granted, provided that the above copyright notice
// and this paragraph and the following two paragraphs appear in all copies.
//
// IN NO EVENT SHALL THE NPGSQL DEVELOPMENT TEAM BE LIABLE TO ANY PARTY
// FOR DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES,
// INCLUDING LOST PROFITS, ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS
// DOCUMENTATION, EVEN IF THE NPGSQL DEVELOPMENT TEAM HAS BEEN ADVISED OF
// THE POSSIBILITY OF SUCH DAMAGE.
//
// THE NPGSQL DEVELOPMENT TEAM SPECIFICALLY DISCLAIMS ANY WARRANTIES,
// INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
// AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
// ON AN "AS IS" BASIS, AND THE NPGSQL DEVELOPMENT TEAM HAS NO OBLIGATIONS
// TO PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
#endregion
using System;
using System.Collections.Generic;
using System.Data;
using System.Linq;
using System.Text;
using NpgsqlTypes;
using NUnit.Framework;
namespace Npgsql.Tests
{
class SqlQueryParserTests
{
[Test]
public void ParamSimple()
{
_params.AddWithValue(":p1", "foo");
_params.AddWithValue(":p2", "bar");
SqlQueryParser.ParseRawQuery("SELECT :p1, :p2", true, _params, _queries);
Assert.That(_queries.Single().InputParameters, Is.EqualTo(_params));
}
[Test]
public void ConsecutiveSemicolons()
{
SqlQueryParser.ParseRawQuery(";;SELECT 1", true, _params, _queries);
Assert.That(_queries, Has.Count.EqualTo(3));
}
[Test]
public void ParamNameWithDot()
{
_params.AddWithValue(":a.parameter", "foo");
SqlQueryParser.ParseRawQuery("INSERT INTO data (field_char5) VALUES (:a.parameter)", true, _params, _queries);
Assert.That(_queries.Single().InputParameters.Single(), Is.SameAs(_params.Single()));
}
[Test, Description("Checks several scenarios in which the SQL is supposed to pass untouched")]
[TestCase(@"SELECT to_tsvector('fat cats ate rats') @@ to_tsquery('cat & rat')", TestName="AtAt")]
[TestCase(@"SELECT 'cat'::tsquery @> 'cat & rat'::tsquery", TestName = "AtGt")]
[TestCase(@"SELECT 'cat'::tsquery <@ 'cat & rat'::tsquery", TestName = "AtLt")]
[TestCase(@"SELECT 'b''la'", TestName = "DoubleTicks")]
[TestCase(@"SELECT 'type(''m.response'')#''O''%'", TestName = "DoubleTicks2")]
[TestCase(@"SELECT 'abc'':str''a:str'", TestName = "DoubleTicks3")]
[TestCase(@"SELECT 1 FROM "":str""", TestName = "DoubleQuoted")]
[TestCase(@"SELECT 1 FROM 'yo'::str", TestName = "DoubleColons")]
[TestCase("SELECT $\u00ffabc0$literal string :str :int$\u00ffabc0 $\u00ffabc0$", TestName = "DollarQuotes")]
[TestCase("SELECT $$:str$$", TestName = "DollarQuotesNoTag")]
public void Untouched(string sql)
{
_params.AddWithValue(":param", "foo");
SqlQueryParser.ParseRawQuery(sql, true, _params, _queries);
Assert.That(_queries.Single().SQL, Is.EqualTo(sql));
Assert.That(_queries.Single().InputParameters, Is.Empty);
}
[Test]
[TestCase(@"SELECT 1<:param", TestName = "LessThan")]
[TestCase(@"SELECT 1>:param", TestName = "GreaterThan")]
[TestCase(@"SELECT 1<>:param", TestName = "NotEqual")]
[TestCase("SELECT--comment\r:param", TestName="LineComment")]
public void ParamGetsBound(string sql)
{
_params.AddWithValue(":param", "foo");
SqlQueryParser.ParseRawQuery(sql, true, _params, _queries);
Assert.That(_queries.Single().InputParameters.Single(), Is.SameAs(_params.Single()));
}
[Test]
[TestCase(@"SELECT e'ab\'c:param'", TestName = "Estring")]
[TestCase(@"SELECT/*/* -- nested comment :int /*/* *//*/ **/*/*/*/1")]
[TestCase(@"SELECT 1,
-- Comment, @param and also :param
2", TestName = "LineComment")]
public void ParamDoesntGetBound(string sql)
{
_params.AddWithValue(":param", "foo");
SqlQueryParser.ParseRawQuery(sql, true, _params, _queries);
Assert.That(_queries.Single().InputParameters, Is.Empty);
}
[Test]
public void NonConformantStrings()
{
SqlQueryParser.ParseRawQuery(@"SELECT 'abc\':str''a:str'", false, _params, _queries);
Assert.That(_queries.Single().SQL, Is.EqualTo(@"SELECT 'abc\':str''a:str'"));
Assert.That(_queries.Single().InputParameters, Is.Empty);
}
[Test]
public void MultiqueryWithParams()
{
var p1 = new NpgsqlParameter("p1", DbType.String);
_params.Add(p1);
var p2 = new NpgsqlParameter("p2", DbType.String);
_params.Add(p2);
var p3 = new NpgsqlParameter("p3", DbType.String);
_params.Add(p3);
SqlQueryParser.ParseRawQuery("SELECT @p3, @p1; SELECT @p2, @p3", true, _params, _queries);
Assert.That(_queries, Has.Count.EqualTo(2));
Assert.That(_queries[0].InputParameters[0], Is.SameAs(p3));
Assert.That(_queries[0].InputParameters[1], Is.SameAs(p1));
Assert.That(_queries[1].InputParameters[0], Is.SameAs(p2));
Assert.That(_queries[1].InputParameters[1], Is.SameAs(p3));
}
[Test]
public void NoOutputParameters()
{
var p = new NpgsqlParameter("p", DbType.String) { Direction = ParameterDirection.Output };
_params.Add(p);
Assert.That(() => SqlQueryParser.ParseRawQuery("SELECT @p", true, _params, _queries), Throws.Exception);
}
#if TODO
[Test]
public void TrimWhitespace()
{
SqlQueryParser.ParseRawQuery(" SELECT 1\t", true, _params, _queries);
Assert.That(_queries.Single().Sql, Is.EqualTo("SELECT 1"));
}
#endif
#region Setup / Teardown / Utils
List<NpgsqlStatement> _queries;
NpgsqlParameterCollection _params;
[SetUp]
public void SetUp()
{
_queries = new List<NpgsqlStatement>();
_params = new NpgsqlParameterCollection();
}
#endregion
}
}