public async Task CheckAsync_RunsAllChecksAndAggregatesResultsAsync()
{
const string DataKey = "Foo";
const string DataValue = "Bar";
const string DegradedMessage = "I'm not feeling so good";
const string UnhealthyMessage = "Halp!";
const string HealthyMessage = "Everything is A-OK";
var exception = new Exception("Things are pretty bad!");
// Arrange
var data = new Dictionary <string, object>()
{
{ DataKey, DataValue }
};
var healthyCheck = new HealthCheck("HealthyCheck", _ => Task.FromResult(HealthCheckResult.Healthy(HealthyMessage, data)));
var degradedCheck = new HealthCheck("DegradedCheck", _ => Task.FromResult(HealthCheckResult.Degraded(DegradedMessage)));
var unhealthyCheck = new HealthCheck("UnhealthyCheck", _ => Task.FromResult(HealthCheckResult.Unhealthy(UnhealthyMessage, exception)));
var service = new HealthCheckService(new[]
{
healthyCheck,
degradedCheck,
unhealthyCheck,
});
// Act
var results = await service.CheckHealthAsync();
// Assert
Assert.Collection(results.Results,
actual =>
{
Assert.Equal(healthyCheck.Name, actual.Key);
Assert.Equal(HealthyMessage, actual.Value.Description);
Assert.Equal(HealthCheckStatus.Healthy, actual.Value.Status);
Assert.Null(actual.Value.Exception);
Assert.Collection(actual.Value.Data, item =>
{
Assert.Equal(DataKey, item.Key);
Assert.Equal(DataValue, item.Value);
});
},
actual =>
{
Assert.Equal(degradedCheck.Name, actual.Key);
Assert.Equal(DegradedMessage, actual.Value.Description);
Assert.Equal(HealthCheckStatus.Degraded, actual.Value.Status);
Assert.Null(actual.Value.Exception);
Assert.Empty(actual.Value.Data);
},
actual =>
{
Assert.Equal(unhealthyCheck.Name, actual.Key);
Assert.Equal(UnhealthyMessage, actual.Value.Description);
Assert.Equal(HealthCheckStatus.Unhealthy, actual.Value.Status);
Assert.Same(exception, actual.Value.Exception);
Assert.Empty(actual.Value.Data);
});
}
public HealthCheckPublisherHostedService(
HealthCheckService healthCheckService,
IOptions <HealthCheckPublisherOptions> options,
ILogger <HealthCheckPublisherHostedService> logger,
IEnumerable <IHealthCheckPublisher> publishers)
{
if (healthCheckService == null)
{
throw new ArgumentNullException(nameof(healthCheckService));
}
if (options == null)
{
throw new ArgumentNullException(nameof(options));
}
if (logger == null)
{
throw new ArgumentNullException(nameof(logger));
}
if (publishers == null)
{
throw new ArgumentNullException(nameof(publishers));
}
_healthCheckService = healthCheckService;
_options = options;
_logger = logger;
_publishers = publishers.ToArray();
_stopping = new CancellationTokenSource();
}
public void Constructor_BuildsDictionaryOfChecks()
{
// Arrange
var fooCheck = new HealthCheck("Foo", _ => Task.FromResult(HealthCheckResult.Healthy()));
var barCheck = new HealthCheck("Bar", _ => Task.FromResult(HealthCheckResult.Healthy()));
var bazCheck = new HealthCheck("Baz", _ => Task.FromResult(HealthCheckResult.Healthy()));
var checks = new[] { fooCheck, barCheck, bazCheck };
// Act
var service = new HealthCheckService(checks);
// Assert
Assert.Same(fooCheck, service.Checks["Foo"]);
Assert.Same(barCheck, service.Checks["Bar"]);
Assert.Same(bazCheck, service.Checks["Baz"]);
Assert.Equal(3, service.Checks.Count);
}
