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JsonNetTests.cs
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180 lines (163 loc) · 6.39 KB
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#region License
// The PostgreSQL License
//
// Copyright (C) 2017 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 Newtonsoft.Json;
using Newtonsoft.Json.Linq;
using NUnit.Framework;
using NpgsqlTypes;
using Npgsql.Tests;
// ReSharper disable AccessToModifiedClosure
// ReSharper disable AccessToDisposedClosure
namespace Npgsql.PluginTests
{
/// <summary>
/// Tests for the Npgsql.Json.NET mapping plugin
/// </summary>
[NonParallelizable]
[TestFixture(NpgsqlDbType.Jsonb)]
[TestFixture(NpgsqlDbType.Json)]
public class JsonNetTests : TestBase
{
[Test]
public void RoundtripObject()
{
var expected = new Foo { Bar = 8 };
using (var conn = OpenConnection())
using (var cmd = new NpgsqlCommand(@"SELECT @p1, @p2", conn))
{
cmd.Parameters.Add(new NpgsqlParameter("p1", _npgsqlDbType) { Value = expected });
cmd.Parameters.Add(new NpgsqlParameter<Foo>
{
ParameterName = "p2", NpgsqlDbType = _npgsqlDbType, TypedValue = expected
});
using (var reader = cmd.ExecuteReader())
{
reader.Read();
Assert.That(reader.GetFieldValue<Foo>(0), Is.EqualTo(expected));
Assert.That(reader.GetFieldValue<Foo>(1), Is.EqualTo(expected));
}
}
}
[Test]
public void DeserializeFailure()
{
using (var conn = OpenConnection())
using (var cmd = new NpgsqlCommand($@"SELECT '[1, 2, 3]'::{_pgTypeName}", conn))
using (var reader = cmd.ExecuteReader())
{
reader.Read();
// Attempt to deserialize JSON array into object
Assert.That(() => reader.GetFieldValue<Foo>(0), Throws.TypeOf<JsonSerializationException>());
// State should still be OK to continue
var actual = reader.GetFieldValue<JArray>(0);
Assert.That((int)actual[0], Is.EqualTo(1));
}
}
class Foo
{
public int Bar { get; set; }
public override bool Equals(object obj) => (obj as Foo)?.Bar == Bar;
public override int GetHashCode() => Bar.GetHashCode();
}
[Test]
public void RoundtripJObject()
{
var expected = new JObject { ["Bar"] = 8 };
using (var conn = OpenConnection())
using (var cmd = new NpgsqlCommand(@"SELECT @p", conn))
{
cmd.Parameters.Add(new NpgsqlParameter("p", _npgsqlDbType) { Value = expected });
using (var reader = cmd.ExecuteReader())
{
reader.Read();
var actual = reader.GetFieldValue<JObject>(0);
Assert.That((int)actual["Bar"], Is.EqualTo(8));
}
}
}
[Test]
public void RoundtripJArray()
{
var expected = new JArray(new[] { 1, 2, 3 });
using (var conn = OpenConnection())
using (var cmd = new NpgsqlCommand(@"SELECT @p", conn))
{
cmd.Parameters.Add(new NpgsqlParameter("p", _npgsqlDbType) { Value = expected });
using (var reader = cmd.ExecuteReader())
{
reader.Read();
var jarray = reader.GetFieldValue<JArray>(0);
Assert.That(jarray.ToObject<int[]>(), Is.EqualTo(new[] { 1, 2, 3 }));
}
}
}
[Test]
public void ClrTypeMapping()
{
var expected = new Foo { Bar = 8 };
using (var conn = OpenConnection())
using (var cmd = new NpgsqlCommand(@"SELECT @p", conn))
{
conn.TypeMapper.UseJsonNet(new[] { typeof(Foo) });
cmd.Parameters.AddWithValue("p", expected);
using (var reader = cmd.ExecuteReader())
{
reader.Read();
var actual = reader.GetFieldValue<Foo>(0);
Assert.That(actual.Bar, Is.EqualTo(8));
}
}
}
[Test]
public void RoundtripClrArray()
{
var expected = new[] { 1, 2, 3 };
using (var conn = OpenConnection())
{
conn.TypeMapper.UseJsonNet(new[] { typeof(int[]) });
using (var cmd = new NpgsqlCommand($@"SELECT @p::{_pgTypeName}", conn))
{
cmd.Parameters.AddWithValue("p", expected);
using (var reader = cmd.ExecuteReader())
{
reader.Read();
var actual = reader.GetFieldValue<int[]>(0);
Assert.That(actual, Is.EqualTo(expected));
}
}
}
}
protected override NpgsqlConnection OpenConnection(string connectionString = null)
{
var conn = base.OpenConnection(connectionString);
conn.TypeMapper.UseJsonNet();
return conn;
}
readonly NpgsqlDbType _npgsqlDbType;
readonly string _pgTypeName;
public JsonNetTests(NpgsqlDbType npgsqlDbType)
{
_npgsqlDbType = npgsqlDbType;
_pgTypeName = npgsqlDbType.ToString().ToLower();
}
}
}