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net.jqwik.engine.execution.reporting.ValueReport Maven / Gradle / Ivy
package net.jqwik.engine.execution.reporting;
import java.util.*;
import java.util.stream.*;
import net.jqwik.api.*;
public abstract class ValueReport {
interface ReportingFormatFinder {
SampleReportingFormat find(Object value);
}
// For Testing only
static ValueReport of(Object value) {
return of(value, SampleReportingFormats.getReportingFormats());
}
public static ValueReport of(Object value, Collection availableFormats) {
ReportingFormatFinder formatFinder = formatFinder(availableFormats);
return of(value, formatFinder);
}
private static ValueReport of(Object value, ReportingFormatFinder formatFinder) {
final Set visited = visitedSet(Collections.emptySet());
return of(value, formatFinder, visited);
}
private static Set visitedSet(Set from) {
Set objects = Collections.newSetFromMap(new IdentityHashMap<>());
objects.addAll(from);
return objects;
}
@SuppressWarnings("unchecked")
private static ValueReport of(Object value, ReportingFormatFinder formatFinder, Set visited) {
SampleReportingFormat format = formatFinder.find(value);
if (visited.contains(value)) {
return new CircularDependencyReport(format.label(value), value);
} else {
visited.add(value);
}
Object reportedValue = format.report(value);
if (reportedValue instanceof Collection) {
return createCollectionReport(format.label(value), (Collection) reportedValue, formatFinder, visited);
}
if (reportedValue instanceof Map) {
return createMapReport(format.label(value), (Map) reportedValue, formatFinder, visited);
}
if (reportedValue instanceof Tuple) {
return createTupleReport(format.label(value), (Tuple) reportedValue, formatFinder, visited);
}
visited.remove(value);
return new ObjectValueReport(format.label(value), reportedValue);
}
private static ValueReport createTupleReport(
Optional label,
Tuple tuple,
ReportingFormatFinder formatFinder,
final Set visited
) {
List tupleReports =
tuple.items()
.stream()
.map(value -> of(value, formatFinder, visitedSet(visited)))
.collect(Collectors.toList());
return new TupleValueReport(label, tupleReports);
}
private static ValueReport createMapReport(
final Optional label,
final Map map,
final ReportingFormatFinder formatFinder,
final Set visited
) {
List> reportEntries =
map.entrySet()
.stream()
.map(entry -> {
ValueReport keyReport = of(entry.getKey(), formatFinder, visitedSet(visited));
ValueReport valueReport = of(entry.getValue(), formatFinder, visitedSet(visited));
return new Map.Entry() {
@Override
public ValueReport getKey() {
return keyReport;
}
@Override
public ValueReport getValue() {
return valueReport;
}
@Override
public ValueReport setValue(ValueReport value) {
throw new UnsupportedOperationException();
}
};
})
.collect(Collectors.toList());
return new MapValueReport(label, reportEntries);
}
private static ValueReport createCollectionReport(
Optional label,
Collection collection,
ReportingFormatFinder formatFinder,
final Set visited
) {
List reportCollection =
collection
.stream()
.map(element -> of(element, formatFinder, visitedSet(visited)))
.collect(Collectors.toList());
return new CollectionValueReport(label, reportCollection);
}
private static ReportingFormatFinder formatFinder(Collection unsortedFormats) {
List formats = new ArrayList<>(unsortedFormats);
Collections.sort(formats);
return targetValue ->
formats.stream()
.filter(format -> {
try {
return format.appliesTo(targetValue);
} catch (NullPointerException npe) {
return false;
}
})
.findFirst().orElse(new NullReportingFormat());
}
final Optional label;
protected ValueReport(Optional label) {
this.label = label;
}
int singleLineLength() {
return singleLineReport().length();
}
public abstract String singleLineReport();
public abstract void report(LineReporter lineReporter, int indentLevel, String appendix);
}
