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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.Diagnostics.Contracts;
using System.Linq;
using System.Net;
using System.Net.NetworkInformation;
using System.Text;
using Npgsql;
using NpgsqlTypes;
using NUnit.Framework;
namespace Npgsql.Tests.Types
{
/// <summary>
/// Tests on PostgreSQL types which don't fit elsewhere
/// </summary>
class MiscTypeTests : TestBase
{
/// <summary>
/// http://www.postgresql.org/docs/current/static/datatype-boolean.html
/// </summary>
/// <param name="prepare"></param>
[Test, Description("Roundtrips a bool")]
public void Bool()
{
var cmd = new NpgsqlCommand("SELECT @p1, @p2, @p3, @p4", Conn);
var p1 = new NpgsqlParameter("p1", NpgsqlDbType.Boolean);
var p2 = new NpgsqlParameter("p2", NpgsqlDbType.Boolean);
var p3 = new NpgsqlParameter("p3", DbType.Boolean);
var p4 = new NpgsqlParameter { ParameterName = "p4", Value = true };
Assert.That(p4.NpgsqlDbType, Is.EqualTo(NpgsqlDbType.Boolean));
Assert.That(p4.DbType, Is.EqualTo(DbType.Boolean));
cmd.Parameters.Add(p1);
cmd.Parameters.Add(p2);
cmd.Parameters.Add(p3);
cmd.Parameters.Add(p4);
p1.Value = false;
p2.Value = p3.Value = true;
var reader = cmd.ExecuteReader();
reader.Read();
Assert.That(reader.GetBoolean(0), Is.False);
for (var i = 1; i < cmd.Parameters.Count; i++)
{
Assert.That(reader.GetBoolean(i), Is.True);
Assert.That(reader.GetValue(i), Is.True);
Assert.That(reader.GetProviderSpecificValue(i), Is.True);
Assert.That(reader.GetFieldType(i), Is.EqualTo(typeof (bool)));
Assert.That(reader.GetDataTypeName(i), Is.EqualTo("bool"));
}
reader.Close();
cmd.Dispose();
}
/// <summary>
/// http://www.postgresql.org/docs/current/static/datatype-money.html
/// </summary>
[Test]
public void Money()
{
var expected1 = 12345.12m;
var expected2 = -10.5m;
using (var cmd = new NpgsqlCommand("SELECT @p1, @p2", Conn))
{
cmd.Parameters.AddWithValue("p1", NpgsqlDbType.Money, expected1);
cmd.Parameters.Add(new NpgsqlParameter("p2", DbType.Currency) { Value = expected2 });
using (var reader = cmd.ExecuteReader())
{
reader.Read();
Assert.That(reader.GetDecimal(0), Is.EqualTo(12345.12m));
Assert.That(reader.GetValue(0), Is.EqualTo(12345.12m));
Assert.That(reader.GetProviderSpecificValue(0), Is.EqualTo(12345.12m));
Assert.That(reader.GetFieldType(0), Is.EqualTo(typeof(decimal)));
Assert.That(reader.GetDecimal(1), Is.EqualTo(-10.5m));
}
}
}
/// <summary>
/// http://www.postgresql.org/docs/current/static/datatype-uuid.html
/// </summary>
[Test, Description("Roundtrips a UUID")]
public void Uuid()
{
var expected = new Guid("a0eebc99-9c0b-4ef8-bb6d-6bb9bd380a11");
var cmd = new NpgsqlCommand("SELECT @p1, @p2, @p3", Conn);
var p1 = new NpgsqlParameter("p1", NpgsqlDbType.Uuid);
var p2 = new NpgsqlParameter("p2", DbType.Guid);
var p3 = new NpgsqlParameter { ParameterName = "p3", Value = expected };
cmd.Parameters.Add(p1);
cmd.Parameters.Add(p2);
cmd.Parameters.Add(p3);
p1.Value = p2.Value = expected;
var reader = cmd.ExecuteReader();
reader.Read();
for (var i = 0; i < cmd.Parameters.Count; i++)
{
Assert.That(reader.GetGuid(i), Is.EqualTo(expected));
Assert.That(reader.GetFieldValue<Guid>(i), Is.EqualTo(expected));
Assert.That(reader.GetValue(i), Is.EqualTo(expected));
Assert.That(reader.GetString(i), Is.EqualTo(expected.ToString()));
Assert.That(reader.GetFieldType(i), Is.EqualTo(typeof(Guid)));
}
reader.Dispose();
cmd.Dispose();
}
[Test]
public void ReadInternalChar()
{
var cmd = new NpgsqlCommand("SELECT typdelim FROM pg_type WHERE typname='int4'", Conn);
var reader = cmd.ExecuteReader();
reader.Read();
Assert.That(reader.GetChar(0), Is.EqualTo(','));
Assert.That(reader.GetValue(0), Is.EqualTo(','));
Assert.That(reader.GetProviderSpecificValue(0), Is.EqualTo(','));
Assert.That(reader.GetFieldType(0), Is.EqualTo(typeof(char)));
reader.Dispose();
cmd.Dispose();
}
[Test, Description("Makes sure that the PostgreSQL 'unknown' type (OID 705) is read properly")]
public void ReadUnknown()
{
const string expected = "some_text";
var cmd = new NpgsqlCommand(String.Format("SELECT '{0}'", expected), Conn);
var reader = cmd.ExecuteReader();
reader.Read();
Assert.That(reader.GetString(0), Is.EqualTo(expected));
Assert.That(reader.GetValue(0), Is.EqualTo(expected));
Assert.That(reader.GetFieldValue<char[]>(0), Is.EqualTo(expected.ToCharArray()));
Assert.That(reader.GetFieldType(0), Is.EqualTo(typeof(string)));
reader.Dispose();
cmd.Dispose();
}
[Test, Description("Roundtrips a null value")]
public void Null()
{
var cmd = new NpgsqlCommand("SELECT @p::INT4", Conn);
cmd.Parameters.AddWithValue("p", DBNull.Value);
var reader = cmd.ExecuteReader();
reader.Read();
Assert.That(reader.IsDBNull(0));
Assert.That(reader.GetFieldType(0), Is.EqualTo(typeof(int)));
reader.Dispose();
cmd.Dispose();
}
[Test]
[MinPgVersion(9, 2, 0, "JSON data type not yet introduced")]
public void Json()
{
const string expected = @"{ ""Key"" : ""Value"" }";
using (var cmd = new NpgsqlCommand("SELECT @p", Conn))
{
cmd.Parameters.AddWithValue("p", NpgsqlDbType.Json, expected);
var reader = cmd.ExecuteReader();
reader.Read();
Assert.That(reader.GetString(0), Is.EqualTo(expected));
Assert.That(reader.GetFieldType(0), Is.EqualTo(typeof(string)));
reader.Close();
}
}
[Test]
[MinPgVersion(9, 4, 0, "JSONB data type not yet introduced")]
public void Jsonb()
{
var sb = new StringBuilder();
sb.Append(@"{""Key"": """);
sb.Append('x', Conn.BufferSize);
sb.Append(@"""}");
var value = sb.ToString();
using (var cmd = new NpgsqlCommand("SELECT @p", Conn))
{
cmd.Parameters.AddWithValue("p", NpgsqlDbType.Jsonb, value);
var reader = cmd.ExecuteReader();
reader.Read();
Assert.That(reader.GetString(0), Is.EqualTo(value));
Assert.That(reader.GetFieldType(0), Is.EqualTo(typeof(string)));
reader.Close();
}
}
[Test]
[MinPgVersion(9, 1, 0, "HSTORE data type not yet introduced")]
public void Hstore()
{
ExecuteNonQuery(@"CREATE EXTENSION IF NOT EXISTS hstore");
var expected = new Dictionary<string, string> {
{"a", "3"},
{"b", null},
{"cd", "hello"}
};
using (var cmd = new NpgsqlCommand("SELECT @p", Conn)) {
cmd.Parameters.AddWithValue("p", NpgsqlDbType.Hstore, expected);
var reader = cmd.ExecuteReader();
reader.Read();
Assert.That(reader.GetFieldType(0), Is.EqualTo(typeof(IDictionary<string, string>)));
Assert.That(reader.GetValue(0), Is.EqualTo(expected));
Assert.That(reader.GetString(0), Is.EqualTo(@"""a""=>""3"",""b""=>NULL,""cd""=>""hello"""));
reader.Close();
}
}
[Test]
public void RegType()
{
const uint expected = 8u;
using (var cmd = new NpgsqlCommand("SELECT @p", Conn))
{
cmd.Parameters.AddWithValue("p", NpgsqlDbType.Regtype, expected);
using (var reader = cmd.ExecuteReader())
{
reader.Read();
Assert.That(reader.GetFieldType(0), Is.EqualTo(typeof(uint)));
Assert.That(reader.GetValue(0), Is.EqualTo(expected));
}
}
}
[Test, Description("PostgreSQL records should be returned as arrays of objects")]
[IssueLink("https://github.com/npgsql/npgsql/issues/724")]
public void Record()
{
ExecuteNonQuery("CREATE FUNCTION pg_temp.foo () RETURNS RECORD AS $$ SELECT 1,2 $$ LANGUAGE SQL");
using (var cmd = new NpgsqlCommand("SELECT pg_temp.foo()", Conn))
{
var record = cmd.ExecuteScalar();
Assert.That(record, Is.TypeOf<object[]>());
var array = (object[])record;
Assert.That(array[0], Is.EqualTo(1));
Assert.That(array[1], Is.EqualTo(2));
}
}
[Test, Description("Makes sure that setting DbType.Object makes Npgsql infer the type")]
[IssueLink("https://github.com/npgsql/npgsql/issues/694")]
public void DbTypeCausesInference()
{
using (var cmd = new NpgsqlCommand("SELECT @p", Conn))
{
cmd.Parameters.Add(new NpgsqlParameter { ParameterName="p", DbType = DbType.Object, Value = 3 });
Assert.That(cmd.ExecuteScalar(), Is.EqualTo(3));
}
}
#region Unrecognized types
static void CheckUnrecognizedType()
{
Assert.That(TypeHandlerRegistry.HandlerTypes.Values.All(x => x.Mapping.PgName != "regproc"), "Test requires an unrecognized type to work");
}
[Test, Description("Attempts to retrieve an unrecognized type without marking it as unknown, triggering an exception")]
public void UnrecognizedBinary()
{
CheckUnrecognizedType();
using (var cmd = new NpgsqlCommand("SELECT typinput FROM pg_type WHERE typname='bool'", Conn))
using (var reader = cmd.ExecuteReader(CommandBehavior.SequentialAccess))
{
reader.Read();
Assert.That(() => reader.GetValue(0), Throws.Exception.TypeOf<NotSupportedException>());
}
Assert.That(ExecuteScalar("SELECT 1"), Is.EqualTo(1));
}
[Test, Description("Retrieves a type as an unknown type, i.e. untreated string")]
public void AllResultTypesAreUnknown()
{
CheckUnrecognizedType();
// Fetch as text to have something the value to assert against
var expected = (string)ExecuteScalar("SELECT typinput::TEXT FROM pg_type WHERE typname='bool'");
var cmd = new NpgsqlCommand("SELECT typinput FROM pg_type WHERE typname='bool'", Conn);
cmd.AllResultTypesAreUnknown = true;
var reader = cmd.ExecuteReader();
reader.Read();
Assert.That(reader.GetFieldType(0), Is.EqualTo(typeof(string)));
Assert.That(reader.GetString(0), Is.EqualTo(expected));
reader.Close();
cmd.Dispose();
}
[Test, Description("Mixes and matches an unknown type with a known type")]
public void UnknownResultTypeList()
{
CheckUnrecognizedType();
// Fetch as text to have something the value to assert against
var expected = (string)ExecuteScalar("SELECT typinput::TEXT FROM pg_type WHERE typname='bool'");
var cmd = new NpgsqlCommand("SELECT typinput, 8 FROM pg_type WHERE typname='bool'", Conn);
cmd.UnknownResultTypeList = new[] { true, false };
var reader = cmd.ExecuteReader();
reader.Read();
Assert.That(reader.GetFieldType(0), Is.EqualTo(typeof(string)));
Assert.That(reader.GetString(0), Is.EqualTo(expected));
Assert.That(reader.GetInt32(1), Is.EqualTo(8));
reader.Close();
cmd.Dispose();
}
[Test]
[IssueLink("https://github.com/npgsql/npgsql/issues/711")]
public void KnownTypeAsUnknown()
{
using (var cmd = new NpgsqlCommand("SELECT 8", Conn))
{
cmd.AllResultTypesAreUnknown = true;
Assert.That(cmd.ExecuteScalar(), Is.EqualTo("8"));
}
}
[Test, Description("Sends a null value parameter with no NpgsqlDbType or DbType, but with context for the backend to handle it")]
public void UnrecognizedNull()
{
var cmd = new NpgsqlCommand("SELECT @p::TEXT", Conn);
var p = new NpgsqlParameter("p", DBNull.Value);
cmd.Parameters.Add(p);
var reader = cmd.ExecuteReader();
reader.Read();
Assert.That(reader.IsDBNull(0));
Assert.That(reader.GetFieldType(0), Is.EqualTo(typeof(string)));
reader.Dispose();
cmd.Dispose();
}
[Test, Description("Sends a value parameter with an explicit NpgsqlDbType.Unknown, but with context for the backend to handle it")]
public void SendUnknown()
{
var cmd = new NpgsqlCommand("SELECT @p::INT4", Conn);
var p = new NpgsqlParameter("p", "8");
cmd.Parameters.Add(p);
var reader = cmd.ExecuteReader();
reader.Read();
Assert.That(reader.GetFieldType(0), Is.EqualTo(typeof(int)));
Assert.That(reader.GetInt32(0), Is.EqualTo(8));
reader.Dispose();
cmd.Dispose();
}
#endregion
// Older tests
[Test]
public void Bug1011085()
{
// Money format is not set in accordance with the system locale format
var command = new NpgsqlCommand("select :moneyvalue", Conn);
var expectedValue = 8.99m;
command.Parameters.Add("moneyvalue", NpgsqlDbType.Money).Value = expectedValue;
var result = (Decimal)command.ExecuteScalar();
Assert.AreEqual(expectedValue, result);
expectedValue = 100m;
command.Parameters[0].Value = expectedValue;
result = (Decimal)command.ExecuteScalar();
Assert.AreEqual(expectedValue, result);
expectedValue = 72.25m;
command.Parameters[0].Value = expectedValue;
result = (Decimal)command.ExecuteScalar();
Assert.AreEqual(expectedValue, result);
}
[Test]
public void TestXmlParameter()
{
TestXmlParameter_Internal(false);
}
[Test]
public void TestXmlParameterPrepared()
{
TestXmlParameter_Internal(true);
}
private void TestXmlParameter_Internal(bool prepare)
{
using (var command = new NpgsqlCommand("select @PrecisionXML", Conn)) {
var sXML = "<?xml version=\"1.0\" encoding=\"UTF-8\"?> <strings type=\"array\"> <string> this is a test with ' single quote </string></strings>";
var parameter = command.CreateParameter();
parameter.DbType = DbType.Xml; // To make it work we need to use DbType.String; and then CAST it in the sSQL: cast(@PrecisionXML as xml)
parameter.ParameterName = "@PrecisionXML";
parameter.Value = sXML;
command.Parameters.Add(parameter);
if (prepare)
command.Prepare();
command.ExecuteScalar();
}
}
[Test]
public void TestBoolParameter1()
{
// will throw exception if bool parameter can't be used as boolean expression
var command = new NpgsqlCommand("select case when (foo is null) then false else foo end as bar from (select :a as foo) as x", Conn);
var p0 = new NpgsqlParameter(":a", true);
// with setting pramater type
p0.DbType = DbType.Boolean;
command.Parameters.Add(p0);
command.ExecuteScalar();
}
[Test]
public void TestBoolParameter2()
{
// will throw exception if bool parameter can't be used as boolean expression
var command = new NpgsqlCommand("select case when (foo is null) then false else foo end as bar from (select :a as foo) as x", Conn);
var p0 = new NpgsqlParameter(":a", true);
// not setting parameter type
command.Parameters.Add(p0);
command.ExecuteScalar();
}
private void TestBoolParameter_Internal(bool prepare)
{
// Add test for prepared queries with bool parameter.
// This test was created based on a report from Andrus Moor in the help forum:
// http://pgfoundry.org/forum/forum.php?thread_id=15672&forum_id=519&group_id=1000140
var command = new NpgsqlCommand("select :boolValue", Conn);
command.Parameters.Add(":boolValue", NpgsqlDbType.Boolean);
if (prepare)
{
command.Prepare();
}
command.Parameters["boolvalue"].Value = false;
Assert.IsFalse((bool)command.ExecuteScalar());
command.Parameters["boolvalue"].Value = true;
Assert.IsTrue((bool)command.ExecuteScalar());
}
[Test]
public void TestBoolParameter()
{
TestBoolParameter_Internal(false);
}
[Test]
public void TestBoolParameterPrepared()
{
TestBoolParameter_Internal(true);
}
[Test]
[Ignore]
public void TestBoolParameterPrepared2()
{
// will throw exception if bool parameter can't be used as boolean expression
var command = new NpgsqlCommand("select :boolValue", Conn);
var p0 = new NpgsqlParameter(":boolValue", false);
// not setting parameter type
command.Parameters.Add(p0);
command.Prepare();
Assert.IsFalse((bool)command.ExecuteScalar());
}
[Test]
public void TestUUIDDataType()
{
const string createTable =
@"DROP TABLE if exists public.person;
CREATE TABLE public.person (
person_id serial PRIMARY KEY NOT NULL,
person_uuid uuid NOT NULL
) WITH(OIDS=FALSE);";
var command = new NpgsqlCommand(createTable, Conn);
command.ExecuteNonQuery();
NpgsqlParameter uuidDbParam = new NpgsqlParameter(":param1", NpgsqlDbType.Uuid);
uuidDbParam.Value = Guid.NewGuid();
command = new NpgsqlCommand(@"INSERT INTO person (person_uuid) VALUES (:param1);", Conn);
command.Parameters.Add(uuidDbParam);
command.ExecuteNonQuery();
command = new NpgsqlCommand("SELECT person_uuid::uuid FROM person LIMIT 1", Conn);
var result = command.ExecuteScalar();
Assert.AreEqual(typeof(Guid), result.GetType());
}
[Test]
public void OidVector()
{
using (var cmd = Conn.CreateCommand())
{
cmd.CommandText = "Select '1 2 3'::oidvector, :p1";
cmd.Parameters.AddWithValue("p1", NpgsqlDbType.Oidvector, new uint[] { 4, 5, 6 });
using (var rdr = cmd.ExecuteReader())
{
rdr.Read();
Assert.AreEqual(typeof(uint[]), rdr.GetValue(0).GetType());
Assert.AreEqual(typeof(uint[]), rdr.GetValue(1).GetType());
Assert.IsTrue(rdr.GetFieldValue<uint[]>(0).SequenceEqual(new uint[] { 1, 2, 3 }));
Assert.IsTrue(rdr.GetFieldValue<uint[]>(1).SequenceEqual(new uint[] { 4, 5, 6 }));
}
}
}
[Test]
public void TsVector()
{
using (var cmd = Conn.CreateCommand())
{
var inputVec = NpgsqlTsVector.Parse(" a:12345C a:24D a:25B b c d 1 2 a:25A,26B,27,28");
cmd.CommandText = "Select :p";
cmd.Parameters.AddWithValue("p", inputVec);
var outputVec = cmd.ExecuteScalar();
Assert.AreEqual(inputVec.ToString(), outputVec.ToString());
}
}
[Test]
public void TsQuery()
{
using (var cmd = Conn.CreateCommand())
{
var query = NpgsqlTsQuery.Parse("(a & !(c | d)) & (!!a&b) | ä | d | e");
cmd.CommandText = "Select :p";
cmd.Parameters.AddWithValue("p", query);
var output = cmd.ExecuteScalar();
Assert.AreEqual(query.ToString(), output.ToString());
}
}
public MiscTypeTests(string backendVersion) : base(backendVersion) {}
}
}