org.apache.beam.sdk.testing

Interface Summary
Interface	Description
FlattenWithHeterogeneousCoders	Category tag for tests that use a `Flatten` where the input `PCollectionList` contains `PCollections` heterogeneous `coders`.
NeedsRunner	Category tag for validation tests which utilize `TestPipeline` for execution and expect to be executed by a `PipelineRunner`.
PAssert.IterableAssert<T>	Builder interface for assertions applicable to iterables and PCollection contents.
PAssert.SingletonAssert<T>	Builder interface for assertions applicable to a single value.
SerializableMatcher<T>	A `Matcher` that is also `Serializable`.
StreamingIT	Deprecated
TestPipelineOptions	`TestPipelineOptions` is a set of options for test pipelines.
TestStream.Event<T>	An event in a `TestStream`.
UsesCommittedMetrics	Category tag for validation tests which utilize `Metrics`.
UsesMapState	Category tag for validation tests which utilize `MapState`.
UsesSetState	Category tag for validation tests which utilize `SetState`.
UsesSplittableParDo	Category tag for validation tests which utilize splittable `ParDo`.
UsesSplittableParDoWithWindowedSideInputs	Category tag for validation tests which utilize splittable `ParDo` and use windowed side inputs.
UsesStatefulParDo	Category tag for validation tests which utilize stateful `ParDo`.
UsesTestStream	Category tag for tests that use `TestStream`, which is not a part of the Beam model but a special feature currently only implemented by the direct runner.
UsesTimersInParDo	Category tag for validation tests which utilize timers in `ParDo`.
UsesUnboundedPCollections	Category tag for validation tests which utilize at least one unbounded `PCollection`.
ValidatesRunner	Category tag for tests which validate that a Beam runner is correctly implemented.

Class Summary
Class	Description
CoderProperties	Properties for use in `Coder` tests.
CoderProperties.TestElementByteSizeObserver	An `ElementByteSizeObserver` that records the observed element sizes for testing purposes.
CrashingRunner	A `PipelineRunner` that applies no overrides and throws an exception on calls to `Pipeline.run()`.
FileChecksumMatcher	Matcher to verify file checksum in E2E test.
PAssert	An assertion on the contents of a `PCollection` incorporated into the pipeline.
PAssert.DefaultConcludeTransform	Default transform to check that a PAssert was successful.
PAssert.GroupThenAssert<T>	A transform that applies an assertion-checking function over iterables of `ActualT` to the entirety of the contents of its input.
PAssert.GroupThenAssertForSingleton<T>	A transform that applies an assertion-checking function to a single iterable contained as the sole element of a `PCollection`.
PAssert.OneSideInputAssert<ActualT>	An assertion checker that takes a single `PCollectionView<ActualT>` and an assertion over `ActualT`, and checks it within a Beam pipeline.
PAssert.PAssertionSite	Track the place where an assertion is defined.
PAssert.PCollectionContentsAssert<T>	An `PAssert.IterableAssert` about the contents of a `PCollection`.
PAssert.PCollectionContentsAssert.MatcherCheckerFn<T>	Check that the passed-in matchers match the existing data.
RegexMatcher	Hamcrest matcher to assert a string matches a pattern.
SourceTestUtils	Helper functions and test harnesses for checking correctness of `Source` implementations.
SuccessOrFailure	Output of `PAssert`.
TestPipeline	A creator of test pipelines that can be used inside of tests that can be configured to run locally or against a remote pipeline runner.
TestPipelineOptions.AlwaysPassMatcher	Matcher which will always pass.
TestPipelineOptions.AlwaysPassMatcherFactory	Factory for `PipelineResult` matchers which always pass.
TestStream<T>	A testing input that generates an unbounded `PCollection` of elements, advancing the watermark and processing time as elements are emitted.
TestStream.Builder<T>	An incomplete `TestStream`.
TestStream.ElementEvent<T>	A `TestStream.Event` that produces elements.
TestStream.ProcessingTimeEvent<T>	A `TestStream.Event` that advances the processing time clock.
TestStream.WatermarkEvent<T>	A `TestStream.Event` that advances the watermark.
UsesAttemptedMetrics	Category tag for validation tests which utilize `Metrics`.
UsesCounterMetrics	Category tag for validation tests which utilize `Counter`.
UsesDistributionMetrics	Category tag for validation tests which utilize `Distribution`.
UsesGaugeMetrics	Category tag for validation tests which utilize `Gauge`.
WindowFnTestUtils	A utility class for testing `WindowFn`s.

Enum Summary
Enum	Description
SourceTestUtils.ExpectedSplitOutcome	Expected outcome of `BoundedSource.BoundedReader.splitAtFraction(double)`.
TestStream.EventType	The types of `TestStream.Event` that are supported by `TestStream`.

Exception Summary
Exception	Description
TestPipeline.AbandonedNodeException	An exception thrown in case an abandoned `PTransform` is detected, that is, a `PTransform` that has not been run.
TestPipeline.PipelineRunMissingException	An exception thrown in case a test finishes without invoking `Pipeline.run()`.

Package org.apache.beam.sdk.testing Description

Defines utilities for unit testing Apache Beam pipelines. The tests for the PTransforms and examples included in the Apache Beam SDK provide examples of using these utilities.