How to use weighting method of net.serenitybdd.cucumber.suiteslicing.WeightedCucumberScenario class

Best Serenity Cucumber code snippet using net.serenitybdd.cucumber.suiteslicing.WeightedCucumberScenario.weighting Github


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...26    public final BigDecimal totalWeighting;27    public final List<WeightedCucumberScenario> scenarios;28    public WeightedCucumberScenarios(List<WeightedCucumberScenario> scenarios) {29        this.scenarios = scenarios;30        this.totalWeighting =, BigDecimal::add);31    }32    public SliceBuilder slice(int sliceNumber) {33        return new SliceBuilder(sliceNumber, this);34    }35    public List<WeightedCucumberScenarios> sliceInto(int sliceCount) {36        BigDecimal totalWeight =, BigDecimal::add);37        BigDecimal averageWeightPerSlice = totalWeight.divide(new BigDecimal(sliceCount), 2, RoundingMode.HALF_UP);38        LOGGER.debug("Total weighting for {} scenarios is {}, split across {} slices provides average weighting per slice of {}", scenarios.size(), totalWeight, sliceCount, averageWeightPerSlice);39        List<List<WeightedCucumberScenario>> allScenarios = IntStream.rangeClosed(1, sliceCount).mapToObj(initialiseAs -> new ArrayList<WeightedCucumberScenario>()).collect(toList());40            .sorted(bySlowestFirst())42            .forEach(scenario ->;43        return;44    }45    public ScenarioFilter createFilterContainingScenariosIn(String featureName) {46        LOGGER.debug("Filtering for scenarios in feature {}", featureName);47        List<String> scenarios =            .filter(scenario -> {49                boolean matches = scenario.feature.equals(featureName);50                LOGGER.debug("Scenario {} matches {} -> {}", scenario.feature, featureName, matches);51                return matches;52            })53            .map(scenario -> scenario.scenario)54            .collect(toList());55        if (scenarios.isEmpty()) {56            throw new IllegalArgumentException("Can't find feature '" + featureName + "' in this slice");57        }58        return ScenarioFilter.onScenarios(scenarios);59    }60    public WeightedCucumberScenarios filter(Predicate<WeightedCucumberScenario> predicate) {61        return new WeightedCucumberScenarios(;62    }63    @Override64    public int hashCode() {65        return HashCodeBuilder.reflectionHashCode(this);66    }67    @Override68    public boolean equals(Object obj) {69        return reflectionEquals(this, obj);70    }71    @Override72    public String toString() {73        return ToStringBuilder.reflectionToString(this);74    }75    private static Comparator<WeightedCucumberScenario> bySlowestFirst() {76        return (item1, item2) -> compare(item2.weighting(), item1.weighting());77    }78    private static Comparator<List<WeightedCucumberScenario>> byLowestSumOfDurationFirst() {79        return (item1, item2) -> compare(, BigDecimal::add),80                               , BigDecimal::add));81    }82    public int totalScenarioCount() {83        return -> scenario.scenarioCount).reduce(0, Integer::sum);84    }85}...

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...8    public final String featurePath;9    public final String feature;10    public final String scenario;11    public final int scenarioCount;12    public final BigDecimal weighting;13    public final Set<String> tags;14    public WeightedCucumberScenario(String featurePath, String feature, String scenario, BigDecimal weighting, Set<String> tags, int scenarioCount) {15        this.featurePath = featurePath;16        this.feature = feature;17        this.scenario = scenario;18        this.weighting = weighting;19        this.tags = tags;20        this.scenarioCount = scenarioCount;21    }22    public BigDecimal weighting() {23        return weighting;24    }25    @Override26    public int hashCode() {27        return HashCodeBuilder.reflectionHashCode(this);28    }29    @Override30    public boolean equals(Object obj) {31        return reflectionEquals(this, obj);32    }33    @Override34    public String toString() {35        return reflectionToString(this);36    }37}...

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