public void Specified_condition_is_matched_for_empty_storage()
{
var version = _stream.GetCurrentVersion();
var success = _stream.TryAppend(_batch[0], TapeAppendCondition.VersionIs(version));
Assert.IsTrue(success, "Appending records should succeed");
var currentVersion = _stream.GetCurrentVersion();
Assert.Greater(currentVersion, version, "Version should change");
}
public void Specified_condition_is_verified_for_empty_storage()
{
var previousVersion = _stream.GetCurrentVersion();
Assert.AreEqual(0, previousVersion, "Version should be zero");
var result = _stream.TryAppend(_batch[0], TapeAppendCondition.VersionIs(1));
Assert.IsFalse(result, "Appending records should fail");
var currentVersion = _stream.GetCurrentVersion();
Assert.AreEqual(previousVersion, currentVersion, "Version should not change");
}
public void Specified_condition_is_verified_for_non_empty_storage()
{
var previousVersion = _stream.GetCurrentVersion();
_stream.TryAppend(_batch[0]);
var currentVersion1 = _stream.GetCurrentVersion();
Assert.Greater(currentVersion1, previousVersion, "Version should be equal to one");
var result = _stream.TryAppend(_batch[1], TapeAppendCondition.VersionIs(previousVersion));
Assert.IsFalse(result, "Appending records should fail");
var currentVersion2 = _stream.GetCurrentVersion();
Assert.AreEqual(currentVersion1, currentVersion2, "Version should not change");
}