Package org.apache.beam.sdk.testing

Interface PAssert.SingletonAssert<T>

Enclosing class:

PAssert

public static interface PAssert.SingletonAssert<T>

Builder interface for assertions applicable to a single value.

Method Summary

Modifier and Type	Method	Description
PAssert.SingletonAssert<T>	inEarlyPane(BoundedWindow window)	Creates a new PAssert.SingletonAssert like this one, but with the assertion restricted to only run on the provided window, running the checker only on early panes for each key.
PAssert.SingletonAssert<T>	inFinalPane(BoundedWindow window)	Creates a new PAssert.SingletonAssert like this one, but with the assertion restricted to only run on the provided window, running the checker only on the final pane for each key.
PAssert.SingletonAssert<T>	inLatePane(BoundedWindow window)	Creates a new PAssert.SingletonAssert with the assertion restricted to only run on the provided window, running the checker only on late panes for each key.
PAssert.SingletonAssert<T>	inOnlyPane(BoundedWindow window)	Creates a new PAssert.SingletonAssert like this one, but with the assertion restricted to only run on the provided window.
PAssert.SingletonAssert<T>	inOnTimePane(BoundedWindow window)	Creates a new PAssert.SingletonAssert like this one, but with the assertion restricted to only run on the provided window, running the checker only on the on-time pane for each key.
PAssert.SingletonAssert<T>	inWindow(BoundedWindow window)	Creates a new PAssert.SingletonAssert like this one, but with the assertion restricted to only run on the provided window.
PAssert.SingletonAssert<T>	isEqualTo(T expected)	Asserts that the value in question is equal to the provided value, according to Object.equals(java.lang.Object).
PAssert.SingletonAssert<T>	notEqualTo(T notExpected)	Asserts that the value in question is not equal to the provided value, according to Object.equals(java.lang.Object).
PAssert.SingletonAssert<T>	satisfies(SerializableFunction<T,Void> checkerFn)	Applies the provided checking function (presumably containing assertions) to the value in question.

Method Details

inWindow

PAssert.SingletonAssert<T> inWindow(BoundedWindow window)

Creates a new PAssert.SingletonAssert like this one, but with the assertion restricted to only run on the provided window.

The assertion will concatenate all panes present in the provided window if the Trigger produces multiple panes. If the windowing strategy accumulates fired panes and triggers fire multiple times, consider using instead inFinalPane(BoundedWindow) or inOnTimePane(BoundedWindow).

Returns:

a new PAssert.SingletonAssert like this one but with the assertion only applied to the specified window.

inOnlyPane

PAssert.SingletonAssert<T> inOnlyPane(BoundedWindow window)

Creates a new PAssert.SingletonAssert like this one, but with the assertion restricted to only run on the provided window.

The assertion will expect outputs to be produced to the provided window exactly once. If the upstream Trigger may produce output multiple times, consider instead using inFinalPane(BoundedWindow) or inOnTimePane(BoundedWindow).

Returns:

a new PAssert.SingletonAssert like this one but with the assertion only applied to the specified window.

inFinalPane

PAssert.SingletonAssert<T> inFinalPane(BoundedWindow window)

Creates a new PAssert.SingletonAssert like this one, but with the assertion restricted to only run on the provided window, running the checker only on the final pane for each key.

If the input WindowingStrategy does not always produce final panes, the assertion may be executed over an empty input even if the trigger has fired previously. To ensure that a final pane is always produced, set the Window.ClosingBehavior of the windowing strategy (via Window.withAllowedLateness(Duration, ClosingBehavior) setting Window.ClosingBehavior to Window.ClosingBehavior.FIRE_ALWAYS).

Returns:

a new PAssert.SingletonAssert like this one but with the assertion only applied to the specified window.

inOnTimePane

PAssert.SingletonAssert<T> inOnTimePane(BoundedWindow window)

Creates a new PAssert.SingletonAssert like this one, but with the assertion restricted to only run on the provided window, running the checker only on the on-time pane for each key.

Returns:

a new PAssert.SingletonAssert like this one but with the assertion only applied to the specified window.

inEarlyPane

PAssert.SingletonAssert<T> inEarlyPane(BoundedWindow window)

Creates a new PAssert.SingletonAssert like this one, but with the assertion restricted to only run on the provided window, running the checker only on early panes for each key.

Returns:

a new PAssert.SingletonAssert like this one but with the assertion only applied to the specified window.

inLatePane

PAssert.SingletonAssert<T> inLatePane(BoundedWindow window)

Creates a new PAssert.SingletonAssert with the assertion restricted to only run on the provided window, running the checker only on late panes for each key.

Returns:

a new PAssert.SingletonAssert like this one but with the assertion only applied to the specified window.

isEqualTo

PAssert.SingletonAssert<T> isEqualTo(T expected)

Asserts that the value in question is equal to the provided value, according to Object.equals(java.lang.Object).

Returns:

the same PAssert.SingletonAssert builder for further assertions

notEqualTo

PAssert.SingletonAssert<T> notEqualTo(T notExpected)

Asserts that the value in question is not equal to the provided value, according to Object.equals(java.lang.Object).

Returns:

the same PAssert.SingletonAssert builder for further assertions

satisfies

PAssert.SingletonAssert<T> satisfies(SerializableFunction<T,Void> checkerFn)

Applies the provided checking function (presumably containing assertions) to the value in question.

Returns:

the same PAssert.SingletonAssert builder for further assertions