private async Task IdentifyCompletesOnlyWhenNewFlagsAreAvailable(Func <LdClient, User, Task> identifyTask)
{
var userA = User.WithKey("a");
var userB = User.WithKey("b");
var flagKey = "flag";
var userAFlags = new DataSetBuilder()
.Add(flagKey, 1, LdValue.Of("a-value"), 0).Build();
var userBFlags = new DataSetBuilder()
.Add(flagKey, 2, LdValue.Of("b-value"), 1).Build();
var startedIdentifyUserB = new SemaphoreSlim(0, 1);
var canFinishIdentifyUserB = new SemaphoreSlim(0, 1);
var finishedIdentifyUserB = new SemaphoreSlim(0, 1);
var dataSourceFactory = new MockDataSourceFactoryFromLambda((ctx, updates, user, bg) =>
new MockDataSourceFromLambda(user, async() =>
{
switch (user.Key)
{
case "a":
updates.Init(user, userAFlags);
break;
case "b":
startedIdentifyUserB.Release();
await canFinishIdentifyUserB.WaitAsync();
updates.Init(user, userBFlags);
break;
}
}));
var config = BasicConfig()
.DataSource(dataSourceFactory)
.Build();
using (var client = await LdClient.InitAsync(config, userA))
{
Assert.True(client.Initialized);
Assert.Equal("a-value", client.StringVariation(flagKey, null));
var identifyUserBTask = Task.Run(async() =>
{
await identifyTask(client, userB);
finishedIdentifyUserB.Release();
});
await startedIdentifyUserB.WaitAsync();
Assert.False(client.Initialized);
Assert.Null(client.StringVariation(flagKey, null));
canFinishIdentifyUserB.Release();
await finishedIdentifyUserB.WaitAsync();
Assert.True(client.Initialized);
Assert.Equal("b-value", client.StringVariation(flagKey, null));
}
}
// Calls LdClient.Init, but then sets LdClient.Instance to null so other tests can
// instantiate their own independent clients. Application code cannot do this because
// the LdClient.Instance setter has internal scope.
public static async Task <LdClient> CreateClientAsync(Configuration config, User user)
{
return(await WithClientLockAsync(async() =>
{
ClearClient();
LdClient client = await LdClient.InitAsync(config, user);
client.DetachInstance();
return client;
}));
}
public async void InitPassesUserToDataSource()
{
MockPollingProcessor stub = new MockPollingProcessor(DataSetBuilder.Empty);
var config = BasicConfig()
.DataSource(stub.AsFactory())
.Build();
using (var client = await LdClient.InitAsync(config, BasicUser))
{
var actualUser = client.User; // may have been transformed e.g. to add device/OS properties
Assert.Equal(BasicUser.Key, actualUser.Key);
Assert.Equal(actualUser, stub.ReceivedUser);
}
}
public async void InitWithKeylessAnonUserPassesGeneratedUserToDataSource()
{
MockPollingProcessor stub = new MockPollingProcessor(DataSetBuilder.Empty);
var config = BasicConfig()
.DataSource(stub.AsFactory())
.Build();
using (var client = await LdClient.InitAsync(config, KeylessAnonUser))
{
AssertHelpers.UsersEqualExcludingAutoProperties(
User.Builder(KeylessAnonUser).Key(stub.ReceivedUser.Key).Build(),
stub.ReceivedUser);
}
}
public async void IdentifyPassesUserToDataSource()
{
MockPollingProcessor stub = new MockPollingProcessor(DataSetBuilder.Empty);
User newUser = User.WithKey("new-user");
var config = BasicConfig()
.DataSource(stub.AsFactory())
.Build();
using (var client = await LdClient.InitAsync(config, BasicUser))
{
AssertHelpers.UsersEqualExcludingAutoProperties(BasicUser, client.User);
Assert.Equal(client.User, stub.ReceivedUser);
await client.IdentifyAsync(newUser);
AssertHelpers.UsersEqualExcludingAutoProperties(newUser, client.User);
Assert.Equal(client.User, stub.ReceivedUser);
}
}