public async Task EqualOptions_SameSessionPool()
{
int factoryCalls = 0;
ClientFactory factory = (options, settings, logger) =>
{
factoryCalls++;
return(Task.FromResult <SpannerClient>(new FailingSpannerClient()));
};
var manager = new SessionPoolManager(new SessionPoolOptions(), Logger.DefaultLogger, factory);
var options1 = new SpannerClientCreationOptions(new SpannerConnectionStringBuilder(ConnectionString));
var options2 = new SpannerClientCreationOptions(new SpannerConnectionStringBuilder(ConnectionString));
var pool1 = await manager.AcquireSessionPoolAsync(options1);
var pool2 = await manager.AcquireSessionPoolAsync(options2);
Assert.Same(pool1, pool2);
Assert.Equal(1, factoryCalls);
Assert.Equal(1, manager.GetStatistics().Count);
}
public async Task UsesSpannerSettings()
{
ClientFactory factory = (options, settings, logger) =>
{
return(Task.FromResult <SpannerClient>(new FailingSpannerClient(settings)));
};
var customSettings = new SpannerSettings();
var manager = new SessionPoolManager(new SessionPoolOptions(), customSettings, Logger.DefaultLogger, factory);
var pool = await manager.AcquireSessionPoolAsync(new SpannerClientCreationOptions(new SpannerConnectionStringBuilder(ConnectionString)));
Assert.Same(customSettings, pool.Client.Settings);
}
public async Task DifferentOptions_DifferentSessionPools()
{
int factoryCalls = 0;
ClientFactory factory = options =>
{
factoryCalls++;
return(Task.FromResult <SpannerClient>(new FailingSpannerClient()));
};
var manager = new SessionPoolManager(new SessionPoolOptions(), Logger.DefaultLogger, factory);
var options1 = new SpannerClientCreationOptions(new SpannerConnectionStringBuilder(ConnectionString));
var options2 = new SpannerClientCreationOptions(new SpannerConnectionStringBuilder(ConnectionString)
{
Port = 1234
});
var pool1 = await manager.AcquireSessionPoolAsync(options1);
var pool2 = await manager.AcquireSessionPoolAsync(options2);
Assert.NotSame(pool1, pool2);
Assert.Equal(2, factoryCalls);
Assert.Equal(2, manager.GetStatistics().Count);
}
public async Task ReleaseDecreasesCount()
{
var manager = new SessionPoolManager(new SessionPoolOptions(), Logger.DefaultLogger, FailingSpannerClient.Factory);
var options = new SpannerClientCreationOptions(new SpannerConnectionStringBuilder(ConnectionString));
var pool = await manager.AcquireSessionPoolAsync(options);
var stats = manager.GetStatistics().Single();
Assert.Equal(1, stats.ActiveConnectionCount);
manager.Release(pool);
stats = manager.GetStatistics().Single();
Assert.Equal(0, stats.ActiveConnectionCount);
}
public async Task EmulatorDetection_AlwaysUsesRegularOptions(string emulatorHost)
{
var regularOptions = new SessionPoolOptions();
var manager = new SessionPoolManager(regularOptions, SessionPoolManager.CreateDefaultSpannerSettings(), Logger.DefaultLogger, FailingSpannerClient.Factory);
var builder = new SpannerConnectionStringBuilder(ConnectionString)
{
EmulatorDetection = EmulatorDetection.EmulatorOrProduction,
// Effectively "there are no environment variables"
EnvironmentVariableProvider = key => key == "SPANNER_EMULATOR_HOST" ? emulatorHost: null
};
var clientCreationOptions = new SpannerClientCreationOptions(new SpannerConnectionStringBuilder(ConnectionString));
var pool = await manager.AcquireSessionPoolAsync(clientCreationOptions);
Assert.Same(regularOptions, pool.Options);
}