Package net.jqwik.api.statistics

Interface StatisticsCollector

@API(status=MAINTAINED,
     since="1.2.3")
public interface StatisticsCollector

This class serves as an interface to collect statistical data about generated values within a property method.

Method Summary

Modifier and Type	Method	Description
StatisticsCollector	collect(@Nullable Object... values)	Call this method to record an entry for statistical data about generated values.
void	coverage(Consumer<StatisticsCoverage> checker)	Perform coverage checking for successful property on statistics.

Method Details

collect

StatisticsCollector collect(@Nullable Object... values)

Call this method to record an entry for statistical data about generated values. As soon as this method is called at least once in a property method, the statistical data will be reported after the property has finished.

For examples see Statistics.collect(Object...)

Parameters:

values - Can be anything. The list of these values is considered a key for the reported table of frequencies. Constraints:

• There must be at least one value
• The number of values for the same collector (i.e. same label) must always be the same in a single property
• Values can be null

Returns:

The current instance of collector to allow a fluent coverage API

Throws:

IllegalArgumentException - if one of the constraints on values is violated

coverage

@API(status=MAINTAINED,
     since="1.4.0")
void coverage(Consumer<StatisticsCoverage> checker)

Perform coverage checking for successful property on statistics.

For examples see Statistics.coverage(Consumer)

Parameters:

checker - Code that consumes a StatisticsCoverage object