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ObjectIdTests.cs
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ObjectIdTests.cs
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/* Copyright 2010-2013 10gen Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
using System;
using System.Linq;
using MongoDB.Bson;
using NUnit.Framework;
namespace MongoDB.BsonUnitTests
{
[TestFixture]
public class ObjectIdTests
{
[Test]
public void TestByteArrayConstructor()
{
byte[] bytes = { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12 };
var objectId = new ObjectId(bytes);
Assert.AreEqual(0x01020304, objectId.Timestamp);
Assert.AreEqual(0x050607, objectId.Machine);
Assert.AreEqual(0x0809, objectId.Pid);
Assert.AreEqual(0x0a0b0c, objectId.Increment);
Assert.AreEqual(0x050607, objectId.Machine);
Assert.AreEqual(0x0809, objectId.Pid);
Assert.AreEqual(0x0a0b0c, objectId.Increment);
Assert.AreEqual(BsonConstants.UnixEpoch.AddSeconds(0x01020304), objectId.CreationTime);
Assert.AreEqual("0102030405060708090a0b0c", objectId.ToString());
Assert.IsTrue(bytes.SequenceEqual(objectId.ToByteArray()));
}
[Test]
public void TestIntIntShortIntConstructor()
{
byte[] bytes = { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12 };
var objectId = new ObjectId(0x01020304, 0x050607, 0x0809, 0x0a0b0c);
Assert.AreEqual(0x01020304, objectId.Timestamp);
Assert.AreEqual(0x050607, objectId.Machine);
Assert.AreEqual(0x0809, objectId.Pid);
Assert.AreEqual(0x0a0b0c, objectId.Increment);
Assert.AreEqual(0x050607, objectId.Machine);
Assert.AreEqual(0x0809, objectId.Pid);
Assert.AreEqual(0x0a0b0c, objectId.Increment);
Assert.AreEqual(BsonConstants.UnixEpoch.AddSeconds(0x01020304), objectId.CreationTime);
Assert.AreEqual("0102030405060708090a0b0c", objectId.ToString());
Assert.IsTrue(bytes.SequenceEqual(objectId.ToByteArray()));
}
[Test]
public void TestIntIntShortIntConstructorWithInvalidIncrement()
{
var objectId = new ObjectId(0, 0, 0, 0x00ffffff);
Assert.AreEqual(0x00ffffff, objectId.Increment);
Assert.Throws<ArgumentOutOfRangeException>(() => { var invalidId = new ObjectId(0, 0, 0, 0x01000000); });
}
[Test]
public void TestIntIntShortIntConstructorWithInvalidMachine()
{
var objectId = new ObjectId(0, 0x00ffffff, 0, 0);
Assert.AreEqual(0x00ffffff, objectId.Machine);
Assert.Throws<ArgumentOutOfRangeException>(() => { var invalidId = new ObjectId(0, 0x01000000, 0, 0); });
}
[Test]
public void TestPackWithInvalidIncrement()
{
var objectId = new ObjectId(ObjectId.Pack(0, 0, 0, 0x00ffffff));
Assert.AreEqual(0x00ffffff, objectId.Increment);
Assert.Throws<ArgumentOutOfRangeException>(() => { var invalidId = new ObjectId(ObjectId.Pack(0, 0, 0, 0x01000000)); });
}
[Test]
public void TestPackWithInvalidMachine()
{
var objectId = new ObjectId(ObjectId.Pack(0, 0x00ffffff, 0, 0));
Assert.AreEqual(0x00ffffff, objectId.Machine);
Assert.Throws<ArgumentOutOfRangeException>(() => { var invalidId = new ObjectId(ObjectId.Pack(0, 0x01000000, 0, 0)); });
}
[Test]
public void TestDateTimeConstructor()
{
byte[] bytes = { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12 };
var timestamp = BsonConstants.UnixEpoch.AddSeconds(0x01020304);
var objectId = new ObjectId(timestamp, 0x050607, 0x0809, 0x0a0b0c);
Assert.AreEqual(0x01020304, objectId.Timestamp);
Assert.AreEqual(0x050607, objectId.Machine);
Assert.AreEqual(0x0809, objectId.Pid);
Assert.AreEqual(0x0a0b0c, objectId.Increment);
Assert.AreEqual(0x050607, objectId.Machine);
Assert.AreEqual(0x0809, objectId.Pid);
Assert.AreEqual(0x0a0b0c, objectId.Increment);
Assert.AreEqual(BsonConstants.UnixEpoch.AddSeconds(0x01020304), objectId.CreationTime);
Assert.AreEqual("0102030405060708090a0b0c", objectId.ToString());
Assert.IsTrue(bytes.SequenceEqual(objectId.ToByteArray()));
}
[Test]
public void TestStringConstructor()
{
byte[] bytes = { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12 };
var objectId = new ObjectId("0102030405060708090a0b0c");
Assert.AreEqual(0x01020304, objectId.Timestamp);
Assert.AreEqual(0x050607, objectId.Machine);
Assert.AreEqual(0x0809, objectId.Pid);
Assert.AreEqual(0x0a0b0c, objectId.Increment);
Assert.AreEqual(0x050607, objectId.Machine);
Assert.AreEqual(0x0809, objectId.Pid);
Assert.AreEqual(0x0a0b0c, objectId.Increment);
Assert.AreEqual(BsonConstants.UnixEpoch.AddSeconds(0x01020304), objectId.CreationTime);
Assert.AreEqual("0102030405060708090a0b0c", objectId.ToString());
Assert.IsTrue(bytes.SequenceEqual(objectId.ToByteArray()));
}
[Test]
public void TestGenerateNewId()
{
// compare against two timestamps in case seconds since epoch changes in middle of test
var timestamp1 = (int)Math.Floor((DateTime.UtcNow - BsonConstants.UnixEpoch).TotalSeconds);
var objectId = ObjectId.GenerateNewId();
var timestamp2 = (int)Math.Floor((DateTime.UtcNow - BsonConstants.UnixEpoch).TotalSeconds);
Assert.IsTrue(objectId.Timestamp == timestamp1 || objectId.Timestamp == timestamp2);
Assert.IsTrue(objectId.Machine != 0);
Assert.IsTrue(objectId.Pid != 0);
}
[Test]
public void TestGenerateNewIdWithDateTime()
{
var timestamp = new DateTime(2011, 1, 2, 3, 4, 5, DateTimeKind.Utc);
var objectId = ObjectId.GenerateNewId(timestamp);
Assert.IsTrue(objectId.CreationTime == timestamp);
Assert.IsTrue(objectId.Machine != 0);
Assert.IsTrue(objectId.Pid != 0);
}
[Test]
public void TestGenerateNewIdWithTimestamp()
{
var timestamp = 0x01020304;
var objectId = ObjectId.GenerateNewId(timestamp);
Assert.IsTrue(objectId.Timestamp == timestamp);
Assert.IsTrue(objectId.Machine != 0);
Assert.IsTrue(objectId.Pid != 0);
}
[Test]
public void TestIComparable()
{
var objectId1 = ObjectId.GenerateNewId();
var objectId2 = ObjectId.GenerateNewId();
Assert.AreEqual(0, objectId1.CompareTo(objectId1));
Assert.AreEqual(-1, objectId1.CompareTo(objectId2));
Assert.AreEqual(1, objectId2.CompareTo(objectId1));
Assert.AreEqual(0, objectId2.CompareTo(objectId2));
}
[Test]
public void TestCompareEqualGeneratedIds()
{
var objectId1 = ObjectId.GenerateNewId();
var objectId2 = objectId1;
Assert.IsFalse(objectId1 < objectId2);
Assert.IsTrue(objectId1 <= objectId2);
Assert.IsFalse(objectId1 != objectId2);
Assert.IsTrue(objectId1 == objectId2);
Assert.IsFalse(objectId1 > objectId2);
Assert.IsTrue(objectId1 >= objectId2);
}
[Test]
public void TestCompareSmallerTimestamp()
{
var objectId1 = new ObjectId("0102030405060708090a0b0c");
var objectId2 = new ObjectId("0102030505060708090a0b0c");
Assert.IsTrue(objectId1 < objectId2);
Assert.IsTrue(objectId1 <= objectId2);
Assert.IsTrue(objectId1 != objectId2);
Assert.IsFalse(objectId1 == objectId2);
Assert.IsFalse(objectId1 > objectId2);
Assert.IsFalse(objectId1 >= objectId2);
}
[Test]
public void TestCompareSmallerMachine()
{
var objectId1 = new ObjectId("0102030405060708090a0b0c");
var objectId2 = new ObjectId("0102030405060808090a0b0c");
Assert.IsTrue(objectId1 < objectId2);
Assert.IsTrue(objectId1 <= objectId2);
Assert.IsTrue(objectId1 != objectId2);
Assert.IsFalse(objectId1 == objectId2);
Assert.IsFalse(objectId1 > objectId2);
Assert.IsFalse(objectId1 >= objectId2);
}
[Test]
public void TestCompareSmallerPid()
{
var objectId1 = new ObjectId("0102030405060708090a0b0c");
var objectId2 = new ObjectId("01020304050607080a0a0b0c");
Assert.IsTrue(objectId1 < objectId2);
Assert.IsTrue(objectId1 <= objectId2);
Assert.IsTrue(objectId1 != objectId2);
Assert.IsFalse(objectId1 == objectId2);
Assert.IsFalse(objectId1 > objectId2);
Assert.IsFalse(objectId1 >= objectId2);
}
[Test]
public void TestCompareSmallerIncrement()
{
var objectId1 = new ObjectId("0102030405060708090a0b0c");
var objectId2 = new ObjectId("0102030405060708090a0b0d");
Assert.IsTrue(objectId1 < objectId2);
Assert.IsTrue(objectId1 <= objectId2);
Assert.IsTrue(objectId1 != objectId2);
Assert.IsFalse(objectId1 == objectId2);
Assert.IsFalse(objectId1 > objectId2);
Assert.IsFalse(objectId1 >= objectId2);
}
[Test]
public void TestCompareSmallerGeneratedId()
{
var objectId1 = ObjectId.GenerateNewId();
var objectId2 = ObjectId.GenerateNewId();
Assert.IsTrue(objectId1 < objectId2);
Assert.IsTrue(objectId1 <= objectId2);
Assert.IsTrue(objectId1 != objectId2);
Assert.IsFalse(objectId1 == objectId2);
Assert.IsFalse(objectId1 > objectId2);
Assert.IsFalse(objectId1 >= objectId2);
}
[Test]
public void TestCompareLargerTimestamp()
{
var objectId1 = new ObjectId("0102030405060708090a0b0c");
var objectId2 = new ObjectId("0102030305060708090a0b0c");
Assert.IsFalse(objectId1 < objectId2);
Assert.IsFalse(objectId1 <= objectId2);
Assert.IsTrue(objectId1 != objectId2);
Assert.IsFalse(objectId1 == objectId2);
Assert.IsTrue(objectId1 > objectId2);
Assert.IsTrue(objectId1 >= objectId2);
}
[Test]
public void TestCompareLargerMachine()
{
var objectId1 = new ObjectId("0102030405060808090a0b0c");
var objectId2 = new ObjectId("0102030405060708090a0b0c");
Assert.IsFalse(objectId1 < objectId2);
Assert.IsFalse(objectId1 <= objectId2);
Assert.IsTrue(objectId1 != objectId2);
Assert.IsFalse(objectId1 == objectId2);
Assert.IsTrue(objectId1 > objectId2);
Assert.IsTrue(objectId1 >= objectId2);
}
[Test]
public void TestCompareLargerPid()
{
var objectId1 = new ObjectId("01020304050607080a0a0b0c");
var objectId2 = new ObjectId("0102030405060708090a0b0c");
Assert.IsFalse(objectId1 < objectId2);
Assert.IsFalse(objectId1 <= objectId2);
Assert.IsTrue(objectId1 != objectId2);
Assert.IsFalse(objectId1 == objectId2);
Assert.IsTrue(objectId1 > objectId2);
Assert.IsTrue(objectId1 >= objectId2);
}
[Test]
public void TestCompareLargerIncrement()
{
var objectId1 = new ObjectId("0102030405060708090a0b0d");
var objectId2 = new ObjectId("0102030405060708090a0b0c");
Assert.IsFalse(objectId1 < objectId2);
Assert.IsFalse(objectId1 <= objectId2);
Assert.IsTrue(objectId1 != objectId2);
Assert.IsFalse(objectId1 == objectId2);
Assert.IsTrue(objectId1 > objectId2);
Assert.IsTrue(objectId1 >= objectId2);
}
[Test]
public void TestCompareLargerGeneratedId()
{
var objectId2 = ObjectId.GenerateNewId(); // generate before objectId2
var objectId1 = ObjectId.GenerateNewId();
Assert.IsFalse(objectId1 < objectId2);
Assert.IsFalse(objectId1 <= objectId2);
Assert.IsTrue(objectId1 != objectId2);
Assert.IsFalse(objectId1 == objectId2);
Assert.IsTrue(objectId1 > objectId2);
Assert.IsTrue(objectId1 >= objectId2);
}
[Test]
public void TestParse()
{
byte[] bytes = { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12 };
var objectId1 = ObjectId.Parse("0102030405060708090a0b0c"); // lower case
var objectId2 = ObjectId.Parse("0102030405060708090A0B0C"); // upper case
Assert.IsTrue(objectId1.ToByteArray().SequenceEqual(objectId2.ToByteArray()));
Assert.IsTrue(objectId1.ToString() == "0102030405060708090a0b0c"); // ToString returns lower case
Assert.IsTrue(objectId1.ToString() == objectId2.ToString());
Assert.Throws<FormatException>(() => ObjectId.Parse("102030405060708090a0b0c")); // too short
Assert.Throws<FormatException>(() => ObjectId.Parse("x102030405060708090a0b0c")); // invalid character
Assert.Throws<FormatException>(() => ObjectId.Parse("00102030405060708090a0b0c")); // too long
}
[Test]
public void TestTryParse()
{
byte[] bytes = { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12 };
ObjectId objectId1, objectId2;
Assert.IsTrue(ObjectId.TryParse("0102030405060708090a0b0c", out objectId1)); // lower case
Assert.IsTrue(ObjectId.TryParse("0102030405060708090A0B0C", out objectId2)); // upper case
Assert.IsTrue(objectId1.ToByteArray().SequenceEqual(objectId2.ToByteArray()));
Assert.IsTrue(objectId1.ToString() == "0102030405060708090a0b0c"); // ToString returns lower case
Assert.IsTrue(objectId1.ToString() == objectId2.ToString());
Assert.IsFalse(ObjectId.TryParse("102030405060708090a0b0c", out objectId1)); // too short
Assert.IsFalse(ObjectId.TryParse("x102030405060708090a0b0c", out objectId1)); // invalid character
Assert.IsFalse(ObjectId.TryParse("00102030405060708090a0b0c", out objectId1)); // too long
Assert.IsFalse(ObjectId.TryParse(null, out objectId1)); // should return false not throw ArgumentNullException
}
[Test]
public void TestConvertObjectIdToObjectId()
{
var oid = ObjectId.GenerateNewId();
var oidConverted = Convert.ChangeType(oid, typeof(ObjectId));
Assert.AreEqual(oid, oidConverted);
}
}
}