private IQbservable <Location> CreateStreamSource(bool shouldPluralizeStreamName = true)
{
contextOptions.ShouldPluralizeStreamName = shouldPluralizeStreamName;
var context = new TestableDbProvider(contextOptions);
return(context.CreateQueryStream <Location>());
}
private IQbservable <City> CreateQbservable()
{
var context = new TestableDbProvider(TestParameters.KsqlDBUrl);
context.KSqlDbProviderMock.Setup(c => c.Run <int>(It.IsAny <object>(), It.IsAny <CancellationToken>())).Returns(GetTestValues);
context.KSqlDbProviderMock.Setup(c => c.Run <long>(It.IsAny <object>(), It.IsAny <CancellationToken>())).Returns(GetDecimalTestValues);
return(context.CreateQueryStream <City>());
}
public void CreateStreamSet_CalledMultipleTimes_KSqlQueryGeneratorBuildKSqlWasNotCalled()
{
//Arrange
var context = new TestableDbProvider <string>(TestParameters.KsqlDBUrl);
//Act
var subscription = context.CreateQueryStream <string>().Subscribe(_ => {});
//Assert
context.KSqlQueryGenerator.Verify(c => c.BuildKSql(It.IsAny <Expression>(), It.IsAny <QueryContext>()), Times.Once);
}
public void CreateStreamSet_Subscribe_KSqlDbProvidersRunWasCalled()
{
//Arrange
var context = new TestableDbProvider <string>(TestParameters.KsqlDBUrl);
//Act
var streamSet = context.CreateQueryStream <string>().Subscribe(_ => {});
//Assert
streamSet.Should().NotBeNull();
context.KSqlDbProviderMock.Verify(c => c.Run <string>(It.IsAny <object>(), It.IsAny <CancellationToken>()), Times.Once);
}
public async Task DisposeAsync_ServiceProviderWasBuilt_ContextWasDisposed()
{
//Arrange
var context = new TestableDbProvider <string>(TestParameters.KsqlDBUrl);
context.CreateQueryStream <string>();
//Act
await context.DisposeAsync().ConfigureAwait(false);
//Assert
context.IsDisposed.Should().BeTrue();
}
public void CreateStreamSet_Subscribe_ProcessingGuarantee()
{
//Arrange
var contextOptions = new KSqlDBContextOptions(TestParameters.KsqlDBUrl);
contextOptions.SetProcessingGuarantee(ProcessingGuarantee.ExactlyOnce);
var context = new TestableDbProvider <string>(contextOptions);
//Act
var subscription = context.CreateQueryStream <string>().Subscribe(_ => {});
//Assert
context.KSqlDbProviderMock.Verify(c => c.Run <string>(It.Is <QueryStreamParameters>(c => c[KSqlDbConfigs.ProcessingGuarantee] == "exactly_once"), It.IsAny <CancellationToken>()), Times.Once);
}
public void SetAutoOffsetReset_Subscribe_ProcessingGuarantee()
{
//Arrange
var contextOptions = new KSqlDBContextOptions(TestParameters.KsqlDBUrl);
contextOptions.SetAutoOffsetReset(AutoOffsetReset.Latest);
var context = new TestableDbProvider <string>(contextOptions);
//Act
var subscription = context.CreateQueryStream <string>().Subscribe(_ => {});
//Assert
context.KSqlDbProviderMock.Verify(c => c.Run <string>(It.Is <QueryStreamParameters>(c => c["auto.offset.reset"] == "latest"), It.IsAny <CancellationToken>()), Times.Once);
}
public void CreateStreamSet_Subscribe_KSqlQueryGenerator()
{
//Arrange
var contextOptions = new KSqlDBContextOptions(TestParameters.KsqlDBUrl);
contextOptions.QueryStreamParameters["auto.offset.reset"] = "latest";
var context = new TestableDbProvider <string>(contextOptions);
//Act
var subscription = context.CreateQueryStream <string>().Subscribe(_ => {}, e => {});
//Assert
context.KSqlDbProviderMock.Verify(c => c.Run <string>(It.Is <QueryStreamParameters>(parameters => parameters["auto.offset.reset"] == "latest"), It.IsAny <CancellationToken>()), Times.Once);
}
public void WithOffsetResetPolicy_Subscribe_QueryOptionsWereTakenFromContext()
{
//Arrange
var contextOptions = new KSqlDBContextOptions(TestParameters.KsqlDBUrl);
var context = new TestableDbProvider <string>(contextOptions)
{
RegisterKSqlQueryGenerator = false
};
//Act
var subscription = context.CreateQueryStream <string>().WithOffsetResetPolicy(AutoOffsetReset.Latest).Subscribe(_ => {});
//Assert
// context.KSqldbProviderMock.Verify(c => c.Run<string>(It.Is<IQueryParameters>(c => c["auto.offset.reset"] == "latest"), It.IsAny<CancellationToken>()), Times.Once);
context.KSqlDbProviderMock.Verify(c => c.Run <string>(It.Is <QueryStreamParameters>(c => c.AutoOffsetReset == AutoOffsetReset.Latest), It.IsAny <CancellationToken>()), Times.Once);
subscription.Dispose();
}
public void CreateQueryStream_RawKSQL_ReturnAsyncEnumerable()
{
//Arrange
string ksql = "SELECT * FROM tweetsTest EMIT CHANGES LIMIT 2;";
QueryStreamParameters queryStreamParameters = new QueryStreamParameters
{
Sql = ksql,
[QueryStreamParameters.AutoOffsetResetPropertyName] = "earliest",
};
var context = new TestableDbProvider <string>(TestParameters.KsqlDBUrl);
//Act
var source = context.CreateQueryStream <string>(queryStreamParameters);
//Assert
source.Should().NotBeNull();
}
public void CreateStreamSet_Subscribe_QueryOptionsWereTakenFromContext()
{
//Arrange
var contextOptions = new KSqlDBContextOptions(TestParameters.KsqlDBUrl)
{
QueryStreamParameters =
{
["auto.offset.reset"] = "latest"
}
};
var context = new TestableDbProvider <string>(contextOptions);
//Act
var subscription = context.CreateQueryStream <string>().Subscribe(_ => {});
//Assert
context.KSqlDbProviderMock.Verify(c => c.Run <string>(It.Is <QueryStreamParameters>(c => c["auto.offset.reset"] == "latest"), It.IsAny <CancellationToken>()), Times.Once);
subscription.Dispose();
}
public void GroupByCompoundKey_BuildKSql_PrintsQuery()
{
//Arrange
var context = new TestableDbProvider(TestParameters.KsqlDBUrl);
//https://kafka-tutorials.confluent.io/finding-distinct-events/ksql.html
var grouping = context.CreateQueryStream <Click>()
.GroupBy(c => new { c.IP_ADDRESS, c.URL, c.TIMESTAMP })
.WindowedBy(new TimeWindows(Duration.OfMinutes(2)))
.Having(c => c.Count(g => c.Key.IP_ADDRESS) == 1)
.Select(g => new { g.Key.IP_ADDRESS, g.Key.URL, g.Key.TIMESTAMP })
.Take(3);
//Act
var ksql = grouping.ToQueryString();
//Assert
string expectedKSql = @"SELECT IP_ADDRESS, URL, TIMESTAMP FROM Clicks WINDOW TUMBLING (SIZE 2 MINUTES) GROUP BY IP_ADDRESS, URL, TIMESTAMP HAVING COUNT(IP_ADDRESS) = 1 EMIT CHANGES LIMIT 3;";
ksql.Should().BeEquivalentTo(expectedKSql);
}
private IQbservable <Tweet> CreateTweetsStreamSource()
{
var context = new TestableDbProvider(contextOptions);
return(context.CreateQueryStream <Tweet>());
}