public void EmptyConstructor()
{
var ui = new UserIndex();
Assert.NotNull(ui.Data);
Assert.Empty(ui.Data);
}
public void SetIndex()
{
var index = new UserIndex().UpdateTimestamp("user1", UnixMillisecondTime.OfMillis(1000));
_wrapper.SetIndex(index);
var serializedData = _persistentStore.GetValue(ExpectedEnvironmentNamespace, ExpectedIndexKey);
AssertJsonEqual(index.Serialize(), serializedData);
}
public void Deserialize()
{
var json = @"[[""user1"",1000],[""user2"",2000]]";
var ui = UserIndex.Deserialize(json);
Assert.NotNull(ui.Data);
Assert.Collection(ui.Data,
AssertEntry("user1", 1000),
AssertEntry("user2", 2000));
}
public void Serialize()
{
var ui = new UserIndex()
.UpdateTimestamp("user1", UnixMillisecondTime.OfMillis(1000))
.UpdateTimestamp("user2", UnixMillisecondTime.OfMillis(2000));
var json = ui.Serialize();
var expected = @"[[""user1"",1000],[""user2"",2000]]";
AssertJsonEqual(expected, json);
}
public void PruneWhenLimitIsNotExceeded()
{
var ui = new UserIndex()
.UpdateTimestamp("user1", UnixMillisecondTime.OfMillis(1000))
.UpdateTimestamp("user2", UnixMillisecondTime.OfMillis(2000));
Assert.Same(ui, ui.Prune(3, out var removed1));
Assert.Empty(removed1);
Assert.Same(ui, ui.Prune(2, out var removed2));
Assert.Empty(removed2);
}
public void UpdateTimestampForExistingUser()
{
var ui = new UserIndex()
.UpdateTimestamp("user1", UnixMillisecondTime.OfMillis(1000))
.UpdateTimestamp("user2", UnixMillisecondTime.OfMillis(2000));
ui = ui.UpdateTimestamp("user1", UnixMillisecondTime.OfMillis(2001));
Assert.Collection(ui.Data,
AssertEntry("user2", 2000),
AssertEntry("user1", 2001));
}
public void PruneRemovesLeastRecentUsers()
{
var ui = new UserIndex()
.UpdateTimestamp("user1", UnixMillisecondTime.OfMillis(1000))
.UpdateTimestamp("user2", UnixMillisecondTime.OfMillis(2000))
.UpdateTimestamp("user3", UnixMillisecondTime.OfMillis(1111)) // deliberately out of order
.UpdateTimestamp("user4", UnixMillisecondTime.OfMillis(3000))
.UpdateTimestamp("user5", UnixMillisecondTime.OfMillis(4000));
var ui1 = ui.Prune(3, out var removed);
Assert.Equal(ImmutableList.Create("user1", "user3"), removed);
Assert.Collection(ui1.Data,
AssertEntry("user2", 2000),
AssertEntry("user4", 3000),
AssertEntry("user5", 4000));
}
public void DeserializeMalformedJson()
{
Assert.ThrowsAny <FormatException>(() =>
UserIndex.Deserialize("}"));
Assert.ThrowsAny <FormatException>(() =>
UserIndex.Deserialize("["));
Assert.ThrowsAny <FormatException>(() =>
UserIndex.Deserialize("[[true,1000]]"));
Assert.ThrowsAny <FormatException>(() =>
UserIndex.Deserialize(@"[[""user1"",false]]"));
Assert.ThrowsAny <FormatException>(() =>
UserIndex.Deserialize("[3]"));
}
public UserIndex GetIndex()
{
string data = HandleErrorsAndLock(() => _persistentStore.GetValue(_environmentNamespace, EnvironmentMetadataKey));
if (data is null)
{
return(new UserIndex());
}
try
{
return(UserIndex.Deserialize(data));
}
catch (Exception)
{
_log.Warn("Discarding invalid data from persistent store index");
return(new UserIndex());
}
}
public void SetIndex(UserIndex index) => HandleErrorsAndLock(() => _persistentStore.SetValue(_environmentNamespace, EnvironmentMetadataKey, index.Serialize()));
