public void TestUpdateBlockToBiggerSize ()
{
var recordStorage = new RecordStorage (new BlockStorage(new MemoryStream(), 8192, 48));
var x1 = UnitTestHelper.RandomData(2491);
var x2 = UnitTestHelper.RandomData(9182);
var x3 = UnitTestHelper.RandomData(5182);
recordStorage.Create (x1); // Use 1 block
recordStorage.Create (x2); // Use 2 blocks
recordStorage.Create (x3); // Use 1 block
var x2u = UnitTestHelper.RandomData (8192 * 2 + 19); // Use 3 block, so this record should be extended
recordStorage.Update (2, x2u);
Assert.IsTrue (recordStorage.Find (1).SequenceEqual (x1));
Assert.IsTrue (recordStorage.Find (2).SequenceEqual (x2u));
Assert.IsTrue (recordStorage.Find (4).SequenceEqual (x3));
}
public void TestUpdateEqualSizeBlock ()
{
var recordStorage = new RecordStorage (new BlockStorage(new MemoryStream(), 8192, 48));
var x1 = UnitTestHelper.RandomData(2491);
var x2 = UnitTestHelper.RandomData(9182);
var x3 = UnitTestHelper.RandomData(5182);
recordStorage.Create (x1); // Use 1 block
recordStorage.Create (x2); // Use 2 blocks
recordStorage.Create (x3); // Use 1 block
var x2u = UnitTestHelper.RandomData (9177); // Use 2 blocks, still
recordStorage.Update (2, x2u);
Assert.IsTrue (recordStorage.Find (1).SequenceEqual (x1));
Assert.IsTrue (recordStorage.Find (2).SequenceEqual (x2u));
Assert.IsTrue (recordStorage.Find (4).SequenceEqual (x3));
}
public void TestUpdateBlockToSmallerSize ()
{
var recordStorage = new RecordStorage (new BlockStorage(new MemoryStream(), 8192, 48));
var x1 = UnitTestHelper.RandomData(2491);
var x2 = UnitTestHelper.RandomData(9182);
var x3 = UnitTestHelper.RandomData(5182);
recordStorage.Create (x1); // Use 1 block
recordStorage.Create (x2); // Use 2 blocks
recordStorage.Create (x3); // Use 1 block
var x2u = UnitTestHelper.RandomData (1177); // Use 1 block, so this record should be truncated
recordStorage.Update (2, x2u);
Assert.IsTrue (recordStorage.Find (1).SequenceEqual (x1));
Assert.IsTrue (recordStorage.Find (2).SequenceEqual (x2u));
Assert.IsTrue (recordStorage.Find (4).SequenceEqual (x3));
Assert.IsTrue (recordStorage.Create(UnitTestHelper.RandomData(10)) == 3); // Check if block #3 being reused
}
public void TestCreateNewPersist ()
{
var customData = new byte[4096*16 + 27];
var rnd = new Random ();
for (var i = 0; i < customData.Length; i++) {
customData[i] = (byte)rnd.Next(0,256);
}
using (var ms = new MemoryStream())
{
var recordStorage = new RecordStorage(new BlockStorage(ms));
var recordId = recordStorage.Create (customData);
// First record, shoud has id of 1..
Assert.AreEqual (1, recordId);
// Test read back the data
Assert.True (customData.SequenceEqual(recordStorage.Find(1)));
// Now test persistant
var recordStorage2 = new RecordStorage(new BlockStorage(ms));
Assert.True (customData.SequenceEqual(recordStorage2.Find(1)));
}
}
public void TestDeletion()
{
var d1 = GenerateRandomData (1029);
var d2 = GenerateRandomData (14 * 1024 * 4);
var d3 = GenerateRandomData (3591);
var d4 = GenerateRandomData (4444);
var d5 = GenerateRandomData (5555);
var d6 = GenerateRandomData (6666);
using (var ms = new MemoryStream())
{
var recordStorage = new RecordStorage(new BlockStorage(ms));
var r1 = recordStorage.Create (d1);
var r2 = recordStorage.Create (d2);
var r3 = recordStorage.Create (d3);
Assert.AreEqual (1, r1);
Assert.AreEqual (2, r2);
Assert.AreEqual (4, r3);
Assert.True (recordStorage.Find(r1).SequenceEqual(d1));
Assert.True (recordStorage.Find(r2).SequenceEqual(d2));
Assert.True (recordStorage.Find(r3).SequenceEqual(d3));
// Delete off 2, free 2 records
recordStorage.Delete (r2);
Assert.True (recordStorage.Find(r2) == null);
// INsert 2 new records, should take id of 2,3,4
var r4 = recordStorage.Create (d4);
var r5 = recordStorage.Create (d5);
var r6 = recordStorage.Create (d6);
Assert.AreEqual (3, r4);
Assert.AreEqual (2, r5);
Assert.AreEqual (5, r6);
// Check that data is not being corrupted if we use the reusable block
Assert.True (recordStorage.Find(r4).SequenceEqual(d4));
Assert.True (recordStorage.Find(r5).SequenceEqual(d5));
Assert.True (recordStorage.Find(r6).SequenceEqual(d6));
// Test persistance
var recordStorage2 = new RecordStorage(new BlockStorage(ms));
Assert.True (recordStorage2.Find(r1).SequenceEqual(d1));
Assert.True (recordStorage2.Find(r3).SequenceEqual(d3));
Assert.True (recordStorage2.Find(r4).SequenceEqual(d4));
Assert.True (recordStorage2.Find(r5).SequenceEqual(d5));
Assert.True (recordStorage2.Find(r6).SequenceEqual(d6));
}
}
