public async Task AlarmsAreCreatedForEachIncludedTable()
{
var mockery = new DynamoAlarmGeneratorMockery();
var generator = mockery.AlarmGenerator;
ConfigureTables(mockery);
await generator.GenerateAlarmsFor(Config(), RunMode.GenerateAlarms);
CloudwatchVerify.AlarmWasPutOnIndex(mockery.Cloudwatch,
alarmName: "test-a-table-ConsumerIdIndex-ConsumedReadCapacityUnits-TestGroup",
tableName: "test-a-table",
indexName: "ConsumerIdIndex",
metricName: "ConsumedReadCapacityUnits",
threshold: 312000,
period: 300);
CloudwatchVerify.AlarmWasPutOnIndex(mockery.Cloudwatch,
alarmName: "test-a-table-ConsumerIdIndex-ConsumedWriteCapacityUnits-TestGroup",
tableName: "test-a-table",
indexName: "ConsumerIdIndex",
metricName: "ConsumedWriteCapacityUnits",
threshold: 144000,
period: 300);
CloudwatchVerify.AlarmWasNotPutonIndex(mockery.Cloudwatch,
tableName: "products-table",
indexName: "ThisIsAnIndex");
}
public async Task BothAlarmsAreCreatedForTablesNotExcluded()
{
var mockery = new DynamoAlarmGeneratorMockery();
var generator = mockery.AlarmGenerator;
ConfigureTables(mockery);
await generator.GenerateAlarmsFor(ConfigWithExclusions(), RunMode.GenerateAlarms);
CloudwatchVerify.AlarmWasPutOnTable(mockery.Cloudwatch,
alarmName: "customer-table-ConsumedReadCapacityUnits-TestGroup",
tableName: "customer-table",
metricName: "ConsumedReadCapacityUnits");
CloudwatchVerify.AlarmWasPutOnTable(mockery.Cloudwatch,
alarmName: "customer-table-ConsumedWriteCapacityUnits-TestGroup",
tableName: "customer-table",
metricName: "ConsumedWriteCapacityUnits");
CloudwatchVerify.AlarmWasPutOnTable(mockery.Cloudwatch,
alarmName: "products-table-ConsumedReadCapacityUnits-TestGroup",
tableName: "products-table",
metricName: "ConsumedReadCapacityUnits");
CloudwatchVerify.AlarmWasPutOnTable(mockery.Cloudwatch,
alarmName: "products-table-ConsumedWriteCapacityUnits-TestGroup",
tableName: "products-table",
metricName: "ConsumedWriteCapacityUnits");
}
private static void ConfigureTables(DynamoAlarmGeneratorMockery mockery)
{
mockery.GivenAListOfTables(new string[] { "authentication-tokens" });
mockery.GivenATableWithIndex("authentication-tokens", "ThisIsAnIndex", 1300, 600);
mockery.ValidSnsTopic();
}
private static void ConfigureTables(DynamoAlarmGeneratorMockery mockery)
{
mockery.ValidSnsTopic();
mockery.GivenAListOfTables(new[] { "test-a-table", "other-table" });
mockery.GivenATable("test-a-table", 1300, 600);
mockery.GivenATable("other-table", 1300, 600);
}
public async Task DoesNotThrowIfTableIsReturnedInListingButCannotBeDescribed()
{
var mockery = new DynamoAlarmGeneratorMockery();
var generator = mockery.AlarmGenerator;
mockery.GivenAListOfTables(new[] { "banana", "apple" });
mockery.GivenATable("apple", 1300, 600);
mockery.ValidSnsTopic();
var config = new WatchmanConfiguration()
{
AlertingGroups = new List <AlertingGroup>()
{
new AlertingGroup()
{
Name = "TestGroup",
AlarmNameSuffix = "TestGroup",
DynamoDb = new DynamoDb()
{
Tables = new List <Table>
{
new Table {
Pattern = "^.*$"
}
}
}
}
}
};
await generator.GenerateAlarmsFor(config, RunMode.GenerateAlarms);
}
public async Task ReadAlarmsAreCreatedForEachTable()
{
var mockery = new DynamoAlarmGeneratorMockery();
var generator = mockery.AlarmGenerator;
ConfigureTables(mockery);
await generator.GenerateAlarmsFor(Config(), RunMode.GenerateAlarms);
CloudwatchVerify.AlarmWasPutOnTable(mockery.Cloudwatch,
alarmName: "test-a-table-ConsumedReadCapacityUnits-TestGroup",
tableName: "test-a-table",
metricName: "ConsumedReadCapacityUnits",
threshold: 292500,
period: 300);
CloudwatchVerify.AlarmWasPutOnTable(mockery.Cloudwatch,
alarmName: "test-a-table-ReadThrottleEvents-TestGroup",
tableName: "test-a-table",
metricName: "ReadThrottleEvents",
threshold: 2,
period: 60);
CloudwatchVerify.AlarmWasNotPutOnMetric(mockery.Cloudwatch,
"ConsumedWriteCapacityUnits");
}
private void TestRun(DynamoAlarmGeneratorMockery mockery)
{
ConfigureTables(mockery);
var generator = mockery.AlarmGenerator;
Assert.Throws <AggregateException>(() =>
generator.GenerateAlarmsFor(Config(), RunMode.GenerateAlarms).Wait());
}
private void TestRun(DynamoAlarmGeneratorMockery mockery)
{
ConfigureTables(mockery);
var generator = mockery.AlarmGenerator;
Assert.That(async() => await generator.GenerateAlarmsFor(Config(), RunMode.GenerateAlarms),
Throws.Exception);
}
public void NoWriteAlarmIsPut()
{
var mockery = new DynamoAlarmGeneratorMockery();
TestRun(mockery);
CloudwatchVerify.AlarmWasNotPutOnMetric(mockery.Cloudwatch, "ConsumedWriteCapacityUnits");
}
private static void ConfigureTables(DynamoAlarmGeneratorMockery mockery)
{
mockery.GivenATableWithIndex("happy-table-1", "happy-index-1", 1300, 600);
mockery.GivenATableWithIndex("happy-table-2", "happy-index-2", 50, 15);
mockery.GivenATableDoesNotExist("failure-table-1");
mockery.ValidSnsTopic();
}
private static void ConfigureTables(DynamoAlarmGeneratorMockery mockery)
{
mockery.GivenAListOfTables(new[] { "test1", "test2" });
mockery.GivenATable("test1", ReadCapacity, WriteCapacity);
mockery.GivenATable("test2", ReadCapacity, WriteCapacity);
mockery.ValidSnsTopic();
}
private void ConfigureTables(DynamoAlarmGeneratorMockery mockery)
{
mockery.ValidSnsTopic();
mockery.GivenATable("test-a-table", 1300, 600);
mockery.GivenATable("my-orders", 4000, 800);
mockery.GivenATableDoesNotExist("this-table-does-not-exist");
}
public void FurtherAlarmsAreNotPut()
{
var mockery = new DynamoAlarmGeneratorMockery();
TestRun(mockery);
CloudwatchVerify.AlarmWasNotPutOnTable(mockery.Cloudwatch, "failure-table-1");
CloudwatchVerify.AlarmWasNotPutOnTable(mockery.Cloudwatch, "happy-table-2");
}
public async Task AlarmsAreNotCreatedForExcludedTable()
{
var mockery = new DynamoAlarmGeneratorMockery();
var generator = mockery.AlarmGenerator;
ConfigureTables(mockery);
await generator.GenerateAlarmsFor(ConfigWithAnExclusion(), RunMode.GenerateAlarms);
CloudwatchVerify.AlarmWasNotPutOnTable(mockery.Cloudwatch, "products-table");
}
public async Task NoWriteAlarmsAreCreated()
{
var mockery = new DynamoAlarmGeneratorMockery();
var generator = mockery.AlarmGenerator;
ConfigureTables(mockery);
await generator.GenerateAlarmsFor(Config(), RunMode.GenerateAlarms);
CloudwatchVerify.AlarmWasNotPutOnMetric(mockery.Cloudwatch, "ConsumedWriteCapacityUnits");
}
private static void ConfigureTables(DynamoAlarmGeneratorMockery mockery)
{
mockery.GivenAListOfTables(new[] { "test-a-table", "customer-table", "test-supplier-table", "products-table" });
mockery.GivenATable("test-a-table", 1300, 600);
mockery.GivenATable("customer-table", 2800, 1130);
mockery.GivenATable("test-supplier-table", 400, 100);
mockery.GivenATable("products-table", 2400, 80);
mockery.ValidSnsTopic();
}
public async Task NoAlarmsAreCreated()
{
var mockery = new DynamoAlarmGeneratorMockery();
var generator = mockery.AlarmGenerator;
ConfigureTables(mockery);
await generator.GenerateAlarmsFor(Config(), RunMode.GenerateAlarms);
mockery.Cloudwatch.Verify(x =>
x.PutMetricAlarm(It.IsAny <PutMetricAlarmRequest>()), Times.Never);
}
public void OtherAlarmsAreNotCreated()
{
var mockery = new DynamoAlarmGeneratorMockery();
var generator = mockery.AlarmGenerator;
ConfigureTables(mockery);
Assert.That(async() => await generator.GenerateAlarmsFor(Config(), RunMode.GenerateAlarms),
Throws.Exception);
CloudwatchVerify.AlarmWasNotPutOnTable(mockery.Cloudwatch, "my-orders");
}
private static void ConfigureTables(DynamoAlarmGeneratorMockery mockery)
{
mockery.GivenAListOfTables(
new[] { "test-a-table", "customer-table", "test-supplier-table", "products-table" });
mockery.GivenATableWithIndex("test-a-table", "ConsumerIdIndex", 1300, 600);
mockery.GivenATable("customer-table", 2800, 1130);
mockery.GivenATable("test-supplier-table", 400, 100);
mockery.GivenATableWithIndex("products-table", "ThisIsAnIndex", 452, 550);
mockery.ValidSnsTopic();
}
public void OtherAlarmsAreNotCreated()
{
var mockery = new DynamoAlarmGeneratorMockery();
var generator = mockery.AlarmGenerator;
ConfigureTables(mockery);
// todo, use ThrowsAsync when nunit is updated
Assert.Throws <AggregateException>(
() => generator.GenerateAlarmsFor(Config(), RunMode.GenerateAlarms).Wait());
CloudwatchVerify.AlarmWasNotPutOnTable(mockery.Cloudwatch, "my-orders");
}
public async Task AnSnsTopicIsCreatedForTriggeringTheAlert()
{
var mockery = new DynamoAlarmGeneratorMockery();
var generator = mockery.AlarmGenerator;
ConfigureTables(mockery);
await generator.GenerateAlarmsFor(Config(), RunMode.GenerateAlarms);
mockery.SnsTopicCreator.Verify(
x => x.EnsureSnsTopic("TestGroup", false),
Times.Once);
}
public void TheFirstAlarmIsPut()
{
var mockery = new DynamoAlarmGeneratorMockery();
TestRun(mockery);
CloudwatchVerify.AlarmWasPutOnIndex(mockery.Cloudwatch,
alarmName: "happy-table-1-happy-index-1-ConsumedReadCapacityUnits-TestGroup",
tableName: "happy-table-1",
indexName: "happy-index-1",
metricName: "ConsumedReadCapacityUnits",
threshold: 312000,
period: 300);
}
public void FirstTableHasAlarm()
{
var mockery = new DynamoAlarmGeneratorMockery();
var generator = mockery.AlarmGenerator;
ConfigureTables(mockery);
Assert.That(async() => await generator.GenerateAlarmsFor(Config(), RunMode.GenerateAlarms),
Throws.Exception);
CloudwatchVerify.AlarmWasPutOnTable(mockery.Cloudwatch,
"test-a-table-ConsumedReadCapacityUnits-TestGroup",
"test-a-table", "ConsumedReadCapacityUnits");
}
public async Task AlarmsAreCreatedForEachTable()
{
var mockery = new DynamoAlarmGeneratorMockery();
ConfigureTables(mockery);
var generator = mockery.AlarmGenerator;
await generator.GenerateAlarmsFor(CatchAllConfig(), RunMode.GenerateAlarms);
CloudwatchVerify.AlarmWasPutOnTable(mockery.Cloudwatch,
alarmName: "test-a-table-ConsumedReadCapacityUnits-TestGroup",
tableName: "test-a-table",
metricName: "ConsumedReadCapacityUnits");
CloudwatchVerify.AlarmWasPutOnTable(mockery.Cloudwatch,
alarmName: "test-a-table-ConsumedWriteCapacityUnits-TestGroup",
tableName: "test-a-table",
metricName: "ConsumedWriteCapacityUnits");
CloudwatchVerify.AlarmWasPutOnTable(mockery.Cloudwatch,
alarmName: "customer-table-ConsumedReadCapacityUnits-TestGroup",
tableName: "customer-table",
metricName: "ConsumedReadCapacityUnits");
CloudwatchVerify.AlarmWasPutOnTable(mockery.Cloudwatch,
alarmName: "customer-table-ConsumedWriteCapacityUnits-TestGroup",
tableName: "customer-table",
metricName: "ConsumedWriteCapacityUnits");
CloudwatchVerify.AlarmWasPutOnTable(mockery.Cloudwatch,
alarmName: "test-supplier-table-ConsumedReadCapacityUnits-TestGroup",
tableName: "test-supplier-table",
metricName: "ConsumedReadCapacityUnits");
CloudwatchVerify.AlarmWasPutOnTable(mockery.Cloudwatch,
alarmName: "test-supplier-table-ConsumedWriteCapacityUnits-TestGroup",
tableName: "test-supplier-table",
metricName: "ConsumedWriteCapacityUnits");
CloudwatchVerify.AlarmWasPutOnTable(mockery.Cloudwatch,
alarmName: "products-table-ConsumedReadCapacityUnits-TestGroup",
tableName: "products-table",
metricName: "ConsumedReadCapacityUnits");
CloudwatchVerify.AlarmWasPutOnTable(mockery.Cloudwatch,
alarmName: "products-table-ConsumedWriteCapacityUnits-TestGroup",
tableName: "products-table",
metricName: "ConsumedWriteCapacityUnits");
}
public async Task TableAlarmThresholdsAreSet()
{
var mockery = new DynamoAlarmGeneratorMockery();
var generator = mockery.AlarmGenerator;
ConfigureTables(mockery);
await generator.GenerateAlarmsFor(Config(), RunMode.GenerateAlarms);
CloudwatchVerify.AlarmWasPutMatching(mockery.Cloudwatch,
request =>
request.AlarmName == "orders-ConsumedReadCapacityUnits-TestGroup" &&
request.MetricName == AwsMetrics.ConsumedReadCapacity &&
request.Threshold.Equals(4000 * 0.5 * AwsConstants.FiveMinutesInSeconds));
}
public void FirstTableHasAlarm()
{
var mockery = new DynamoAlarmGeneratorMockery();
var generator = mockery.AlarmGenerator;
ConfigureTables(mockery);
// todo, use ThrowsAsync when nunit is updated
Assert.Throws <AggregateException>(
() => generator.GenerateAlarmsFor(Config(), RunMode.GenerateAlarms).Wait());
CloudwatchVerify.AlarmWasPutOnTable(mockery.Cloudwatch,
"test-a-table-ConsumedReadCapacityUnits-TestGroup",
"test-a-table", "ConsumedReadCapacityUnits");
}
public async Task AWriteAlarmIsCreatedOrUpdated()
{
var mockery = new DynamoAlarmGeneratorMockery();
var generator = mockery.AlarmGenerator;
ConfigureTables(mockery);
await generator.GenerateAlarmsFor(Config(), RunMode.GenerateAlarms);
CloudwatchVerify.AlarmWasPutOnIndex(mockery.Cloudwatch,
alarmName: "authentication-tokens-ThisIsAnIndex-ConsumedWriteCapacityUnits-TestGroup",
tableName: "authentication-tokens",
indexName: "ThisIsAnIndex",
metricName: "ConsumedWriteCapacityUnits",
threshold: 144000,
period: 300);
}
public async Task OnlyReadAlarmIsCreatedWhenWriteExcluded()
{
var mockery = new DynamoAlarmGeneratorMockery();
var generator = mockery.AlarmGenerator;
ConfigureTables(mockery);
await generator.GenerateAlarmsFor(ConfigWithExclusions(), RunMode.GenerateAlarms);
CloudwatchVerify.AlarmWasPutOnTable(mockery.Cloudwatch,
alarmName: "test-supplier-table-ConsumedReadCapacityUnits-TestGroup",
tableName: "test-supplier-table",
metricName: "ConsumedReadCapacityUnits");
CloudwatchVerify.AlarmWasNotPutOnTable(mockery.Cloudwatch,
tableName: "test-supplier-table",
metricName: "ConsumedWriteCapacityUnits");
}
public async Task CorrectAlarmsAreCreatedForEachTable()
{
var mockery = new DynamoAlarmGeneratorMockery();
var generator = mockery.AlarmGenerator;
ConfigureTables(mockery);
await generator.GenerateAlarmsFor(ConfigWithThresholds(), RunMode.GenerateAlarms);
var expectedTable1ReadThreshold = (int)AlarmThresholds.Calulate(ReadCapacity, 0.4);
var expectedTable1WriteThreshold = (int)AlarmThresholds.Calulate(WriteCapacity, 0.4);
CloudwatchVerify.AlarmWasPutOnTable(mockery.Cloudwatch,
alarmName: "test1-ConsumedReadCapacityUnits-TestGroup",
tableName: "test1",
metricName: "ConsumedReadCapacityUnits",
threshold: expectedTable1ReadThreshold,
period: 300);
CloudwatchVerify.AlarmWasPutOnTable(mockery.Cloudwatch,
alarmName: "test1-ConsumedWriteCapacityUnits-TestGroup",
tableName: "test1",
metricName: "ConsumedWriteCapacityUnits",
threshold: expectedTable1WriteThreshold,
period: 300);
var expectedTable2ReadThreshold = (int)AlarmThresholds.Calulate(ReadCapacity, 0.65);
var expectedTable2WriteThreshold = (int)AlarmThresholds.Calulate(WriteCapacity, 0.65);
CloudwatchVerify.AlarmWasPutOnTable(mockery.Cloudwatch,
alarmName: "test2-ConsumedReadCapacityUnits-TestGroup",
tableName: "test2",
metricName: "ConsumedReadCapacityUnits",
threshold: expectedTable2ReadThreshold,
period: 300);
CloudwatchVerify.AlarmWasPutOnTable(mockery.Cloudwatch,
alarmName: "test2-ConsumedWriteCapacityUnits-TestGroup",
tableName: "test2",
metricName: "ConsumedWriteCapacityUnits",
threshold: expectedTable2WriteThreshold,
period: 300);
}
public async Task NamedTableThatDoesNotExistIsIgnored()
{
var mockery = new DynamoAlarmGeneratorMockery();
var generator = mockery.AlarmGenerator;
ConfigureTables(mockery);
var config = new WatchmanConfiguration()
{
AlertingGroups = new List <AlertingGroup>()
{
new AlertingGroup()
{
Name = "TestGroup",
AlarmNameSuffix = "TestGroup",
DynamoDb = new DynamoDb()
{
Tables = new List <Table>
{
new Table {
Name = "table-that-exists"
},
new Table {
Name = "missing-table"
}
}
}
}
}
};
await generator.GenerateAlarmsFor(config, RunMode.GenerateAlarms);
CloudwatchVerify.AlarmWasPutOnTable(mockery.Cloudwatch,
alarmName: "table-that-exists-ConsumedWriteCapacityUnits-TestGroup",
tableName: "table-that-exists",
metricName: "ConsumedWriteCapacityUnits",
threshold: 144000,
period: 300);
}