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LiteralTest.java
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LiteralTest.java
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/*******************************************************************************
* Copyright (c) 2020 Eclipse RDF4J contributors.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Distribution License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/org/documents/edl-v10.php.
******************************************************************************/
package org.eclipse.rdf4j.model;
import static org.assertj.core.api.Assertions.assertThat;
import static org.assertj.core.api.Assertions.assertThatCode;
import static org.assertj.core.api.Assertions.assertThatExceptionOfType;
import static org.assertj.core.api.Assertions.assertThatIllegalArgumentException;
import static org.assertj.core.api.Assertions.assertThatNullPointerException;
import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertTrue;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.io.Serializable;
import java.math.BigDecimal;
import java.math.BigInteger;
import java.time.DateTimeException;
import java.time.Duration;
import java.time.LocalDate;
import java.time.LocalDateTime;
import java.time.LocalTime;
import java.time.Month;
import java.time.MonthDay;
import java.time.OffsetDateTime;
import java.time.OffsetTime;
import java.time.Period;
import java.time.Year;
import java.time.YearMonth;
import java.time.temporal.ChronoField;
import java.util.function.Consumer;
import java.util.function.Function;
import java.util.stream.Stream;
import javax.xml.datatype.DatatypeConfigurationException;
import javax.xml.datatype.DatatypeFactory;
import javax.xml.datatype.XMLGregorianCalendar;
import org.eclipse.rdf4j.model.base.CoreDatatype;
import org.junit.Test;
/**
* Abstract {@link Literal} test suite.
*/
public abstract class LiteralTest {
private static final String XSD = "http://www.w3.org/2001/XMLSchema#";
private static final String RDF = "http://www.w3.org/1999/02/22-rdf-syntax-ns#";
static final String XSD_BOOLEAN = XSD + "boolean";
static final String XSD_BYTE = XSD + "byte";
static final String XSD_SHORT = XSD + "short";
static final String XSD_INT = XSD + "int";
static final String XSD_LONG = XSD + "long";
static final String XSD_FLOAT = XSD + "float";
static final String XSD_DOUBLE = XSD + "double";
static final String XSD_INTEGER = XSD + "integer";
static final String XSD_DECIMAL = XSD + "decimal";
static final String XSD_STRING = XSD + "string";
static final String XSD_DATETIME = XSD + "dateTime";
static final String XSD_TIME = XSD + "time";
static final String XSD_DATE = XSD + "date";
static final String XSD_GYEARMONTH = XSD + "gYearMonth";
static final String XSD_GYEAR = XSD + "gYear";
static final String XSD_GMONTHDAY = XSD + "gMonthDay";
static final String XSD_GDAY = XSD + "gDay";
static final String XSD_GMONTH = XSD + "gMonth";
static final String XSD_DURATION = XSD + "duration";
static final String XSD_DURATION_DAYTIME = XSD + "dayTimeDuration";
static final String XSD_DURATION_YEARMONTH = XSD + "yearMonthDuration";
static final String RDF_LANG_STRING = RDF + "langString";
/**
* Creates a test literal instance.
*
* @param label the label of the literal
* @return a new instance of the concrete literal class under test
*/
protected abstract Literal literal(String label);
/**
* Creates a test literal instance.
*
* @param label the label of the literal
* @param language the language of the literal
* @return a new instance of the concrete literal class under test
*/
protected abstract Literal literal(String label, String language);
/**
* Creates a test literal instance.
*
* @param label the label of the literal
* @param datatype the datatype of the literal
* @return a new instance of the concrete literal class under test
*/
protected abstract Literal literal(String label, IRI datatype);
/**
* Creates a test literal instance.
*
* @param label the label of the literal
* @param datatype the CoreDatatype of the literal
* @return a new instance of the concrete literal class under test
*/
protected abstract Literal literal(String label, CoreDatatype datatype);
/**
* Creates a test datatype IRI instance.
*
* @param iri the IRI of the datatype
* @return a new instance of the concrete datatype class under test
*/
protected abstract IRI datatype(String iri);
//// Constructors //////////////////////////////////////////////////////////////////////////////////////////////////
@Test
public final void testPlainConstructor() {
final String label = "label";
final Literal literal = literal(label);
assertThat(literal.getLabel()).isEqualTo(label);
assertThat(literal.getLanguage()).isNotPresent();
assertThat(literal.getDatatype().stringValue()).isEqualTo(XSD_STRING);
assertThatNullPointerException().isThrownBy(() -> literal(null));
}
@Test
public final void testPlainConstructorWithLongLabel() {
final StringBuilder label = new StringBuilder(1000000);
for (int i = 0; i < 1000000; i++) {
label.append(Integer.toHexString(i % 16));
}
final Literal literal = literal(label.toString());
assertThat(literal.getLabel()).isEqualTo(label.toString());
assertThat(literal.getLanguage()).isNotPresent();
assertThat(literal.getDatatype().stringValue()).isEqualTo(XSD_STRING);
}
@Test
public final void testTaggedConstructor() {
final String label = "label";
final String language = "en";
final Literal literal = literal(label, language);
assertThat(literal.getLabel()).isEqualTo(label);
assertThat(literal.getLanguage()).contains(language);
assertThat(literal.getDatatype().stringValue()).isEqualTo(RDF_LANG_STRING);
assertThatNullPointerException().isThrownBy(() -> literal(null, (String) null));
assertThatNullPointerException().isThrownBy(() -> literal("", (String) null));
assertThatNullPointerException().isThrownBy(() -> literal(null, ""));
assertThatNullPointerException().isThrownBy(() -> literal(null, (IRI) null));
assertThatIllegalArgumentException().isThrownBy(() -> literal("", ""));
}
@Test
public final void testTypedConstructor() {
final String label = "label";
final String datatype = "http://examplle.org/datatype";
final Literal literal = literal(label, datatype(datatype));
assertThat(literal.getLabel()).isEqualTo(label);
assertThat(literal.getLanguage()).isNotPresent();
assertThat(literal.getDatatype().stringValue()).isEqualTo(datatype);
assertThatNullPointerException().isThrownBy(() -> literal(null, (IRI) null));
assertThatNullPointerException().isThrownBy(() -> literal(null, datatype(XSD_STRING)));
assertThatNullPointerException().isThrownBy(() -> literal(null, datatype(RDF_LANG_STRING)));
assertThatIllegalArgumentException().isThrownBy(() -> literal("", datatype(RDF_LANG_STRING)));
}
@Test
public final void testTypedConstructorNullDatatype() {
String label = "label";
IRI datatype = null;
Literal literal = literal(label, datatype);
assertThat(literal.getLabel()).isEqualTo(label);
assertThat(literal.getLanguage()).isNotPresent();
assertThat(literal.getDatatype().stringValue()).isEqualTo(XSD_STRING);
}
//// String Value //////////////////////////////////////////////////////////////////////////////////////////////////
@Test
public void testStringValue() {
final String label = "literal";
final String language = "en";
final IRI datatype = datatype(XSD_DECIMAL);
assertThat(literal(label).stringValue()).isEqualTo(label);
assertThat(literal(label, language).stringValue()).isEqualTo(label);
assertThat(literal(label, datatype).stringValue()).isEqualTo(label);
}
//// Object Values /////////////////////////////////////////////////////////////////////////////////////////////////
@Test
public void testBooleanValue() {
final IRI datatype = datatype(XSD_BOOLEAN);
assertThat(literal("true", datatype).booleanValue()).isTrue();
assertThat(literal("false", datatype).booleanValue()).isFalse();
assertThat(literal("1", datatype).booleanValue()).isTrue();
assertThat(literal("0", datatype).booleanValue()).isFalse();
assertThat(literal("\ttrue", datatype).booleanValue()).isTrue();
assertThat(literal("false\t", datatype).booleanValue()).isFalse();
assertThatIllegalArgumentException().as("malformed")
.isThrownBy(() -> literal("malformed", datatype).booleanValue());
}
@Test
public final void testByteValue() {
final IRI datatype = datatype(XSD_BYTE);
final Class<Byte> type = Byte.class;
assertThat(literal("100", datatype).byteValue()).isInstanceOf(type).isEqualTo((byte) 100);
assertThat(literal("+100", datatype).byteValue()).isInstanceOf(type).isEqualTo((byte) 100);
assertThat(literal("-100", datatype).byteValue()).isInstanceOf(type).isEqualTo((byte) -100);
assertThatIllegalArgumentException().as("not normalized")
.isThrownBy(() -> literal("\t100", datatype).byteValue());
assertThatIllegalArgumentException().as("malformed")
.isThrownBy(() -> literal("malformed", datatype).booleanValue());
}
@Test
public final void testShortValue() {
final IRI datatype = datatype(XSD_SHORT);
final Class<Short> type = Short.class;
assertThat(literal("100", datatype).shortValue()).isInstanceOf(type).isEqualTo((short) 100);
assertThat(literal("+100", datatype).shortValue()).isInstanceOf(type).isEqualTo((short) 100);
assertThat(literal("-100", datatype).shortValue()).isInstanceOf(type).isEqualTo((short) -100);
assertThatIllegalArgumentException().as("not normalized")
.isThrownBy(() -> literal("\t100", datatype).shortValue());
assertThatIllegalArgumentException().as("malformed")
.isThrownBy(() -> literal("malformed", datatype).shortValue());
}
@Test
public final void testIntValue() {
final IRI datatype = datatype(XSD_INT);
final Class<Integer> type = Integer.class;
assertThat(literal("100", datatype).intValue()).isInstanceOf(type).isEqualTo(100);
assertThat(literal("+100", datatype).intValue()).isInstanceOf(type).isEqualTo(100);
assertThat(literal("-100", datatype).intValue()).isInstanceOf(type).isEqualTo(-100);
assertThatIllegalArgumentException().as("not normalized")
.isThrownBy(() -> literal("\t100", datatype).intValue());
assertThatIllegalArgumentException().as("malformed")
.isThrownBy(() -> literal("malformed", datatype).intValue());
}
@Test
public final void testLongValue() {
final IRI datatype = datatype(XSD_LONG);
final Class<Long> type = Long.class;
assertThat(literal("100", datatype).longValue()).isInstanceOf(type).isEqualTo(100);
assertThat(literal("+100", datatype).longValue()).isInstanceOf(type).isEqualTo(100);
assertThat(literal("-100", datatype).longValue()).isInstanceOf(type).isEqualTo(-100);
assertThatIllegalArgumentException().as("not normalized")
.isThrownBy(() -> literal("\t100", datatype).longValue());
assertThatIllegalArgumentException().as("malformed")
.isThrownBy(() -> literal("malformed", datatype).longValue());
}
@Test
public final void testFloatValue() {
final IRI datatype = datatype(XSD_FLOAT);
final Class<Float> type = Float.class;
assertThat(literal("100", datatype).floatValue()).isInstanceOf(type).isEqualTo(100);
assertThat(literal("+100", datatype).floatValue()).isInstanceOf(type).isEqualTo(100);
assertThat(literal("-100", datatype).floatValue()).isInstanceOf(type).isEqualTo(-100);
assertThat(literal("100.0", datatype).floatValue()).isInstanceOf(type).isEqualTo(100);
assertThat(literal("10e1", datatype).floatValue()).isInstanceOf(type).isEqualTo(100);
assertThat(literal("INF", datatype).floatValue()).isInstanceOf(type).isEqualTo(Float.POSITIVE_INFINITY);
assertThat(literal("-INF", datatype).floatValue()).isInstanceOf(type).isEqualTo(Float.NEGATIVE_INFINITY);
assertTrue(Float.isNaN(literal("NaN", datatype).floatValue()));
// assertThatIllegalArgumentException().as("not normalized")
// .isThrownBy(() -> literal("\t100", datatype).floatValue());
assertThatIllegalArgumentException().as("malformed")
.isThrownBy(() -> literal("malformed", datatype).floatValue());
}
@Test
public final void testDoubleValue() {
final IRI datatype = datatype(XSD_DOUBLE);
final Class<Double> type = Double.class;
assertThat(literal("100", datatype).doubleValue()).isInstanceOf(type).isEqualTo(100);
assertThat(literal("+100", datatype).doubleValue()).isInstanceOf(type).isEqualTo(100);
assertThat(literal("-100", datatype).doubleValue()).isInstanceOf(type).isEqualTo(-100);
assertThat(literal("100.0", datatype).doubleValue()).isInstanceOf(type).isEqualTo(100);
assertThat(literal("10e1", datatype).doubleValue()).isInstanceOf(type).isEqualTo(100);
assertThat(literal("INF", datatype).doubleValue()).isInstanceOf(type).isEqualTo(Double.POSITIVE_INFINITY);
assertThat(literal("-INF", datatype).doubleValue()).isInstanceOf(type).isEqualTo(Double.NEGATIVE_INFINITY);
assertTrue(Double.isNaN(literal("NaN", datatype).doubleValue()));
// assertThatIllegalArgumentException().as("not normalized")
// .isThrownBy(() -> literal("\t100", datatype).doubleValue());
assertThatIllegalArgumentException().as("malformed")
.isThrownBy(() -> literal("malformed", datatype).doubleValue());
}
@Test
public final void testIntegerValue() {
final IRI datatype = datatype(XSD_INTEGER);
final Class<BigInteger> type = BigInteger.class;
assertThat(literal("100", datatype).integerValue()).isInstanceOf(type).isEqualTo(100);
assertThat(literal("+100", datatype).integerValue()).isInstanceOf(type).isEqualTo(100);
assertThat(literal("-100", datatype).integerValue()).isInstanceOf(type).isEqualTo(-100);
assertThatIllegalArgumentException().as("not normalized")
.isThrownBy(() -> literal("\t100", datatype).integerValue());
assertThatIllegalArgumentException().as("malformed")
.isThrownBy(() -> literal("malformed", datatype).integerValue());
}
@Test
public final void testDecimalValue() {
final IRI datatype = datatype(XSD_DECIMAL);
final Class<BigDecimal> type = BigDecimal.class;
assertThat(literal("100", datatype).decimalValue()).isInstanceOf(type).isEqualTo(new BigDecimal("100"));
assertThat(literal("+100", datatype).decimalValue()).isInstanceOf(type).isEqualTo(new BigDecimal("100"));
assertThat(literal("-100", datatype).decimalValue()).isInstanceOf(type).isEqualTo(new BigDecimal("-100"));
assertThat(literal("100.0", datatype).decimalValue()).isInstanceOf(type).isEqualTo(new BigDecimal("100.0"));
assertThat(literal("10e1", datatype).decimalValue()).isInstanceOf(type).isEqualTo(new BigDecimal("1.0e2"));
assertThatIllegalArgumentException().as("not normalized")
.isThrownBy(() -> literal("\t100", datatype).decimalValue());
assertThatIllegalArgumentException().as("malformed")
.isThrownBy(() -> literal("malformed", datatype).decimalValue());
}
@Test
public final void testTemporalDateTimeValue() {
final String integral = "2020-09-29T01:02:03";
final String fractional = "2020-09-29T01:02:03.004";
final String offset = "2020-09-29T01:02:03+05:00";
final String zero = "2020-09-29T01:02:03Z";
assertThat(LocalDateTime.from(literal(integral, XSD_DATETIME).temporalAccessorValue()))
.isEqualTo(LocalDateTime.parse(integral));
assertThat(LocalDateTime.from(literal(fractional, XSD_DATETIME).temporalAccessorValue()))
.isEqualTo(LocalDateTime.parse(fractional));
assertThat(OffsetDateTime.from(literal(offset, XSD_DATETIME).temporalAccessorValue()))
.isEqualTo(OffsetDateTime.parse(offset));
assertThat(OffsetDateTime.from(literal(zero, XSD_DATETIME).temporalAccessorValue()))
.isEqualTo(OffsetDateTime.parse(zero));
Stream.of(
"0001-01-01T00:00:00",
"0001-01-01T00:00:00.0",
"0001-01-01T00:00:00Z",
"0001-01-01T00:00:00.0Z",
"0001-01-01T00:00:00+00:00",
"0001-01-01T00:00:00.0+00:00",
"0001-01-01T00:00:00.0-00:00",
"0001-01-01T00:00:00.0+14:00",
"0001-01-01T00:00:00.0-14:00",
"0001-05-31T00:00:00.00",
"0001-07-31T00:00:00.00",
"0001-08-31T00:00:00.00",
"0001-10-31T00:00:00.00",
"0001-12-31T00:00:00.00",
"-0001-01-01T00:00:00",
"1234-12-31T23:59:59",
"1234-12-31T24:00:00",
// "12345-12-31T24:00:00",
// "1234-12-31T24:00:00.1234567890",
"2004-02-29T00:00:00"
)
.forEach(value -> assertThatCode(() -> literal(value, XSD_DATETIME).temporalAccessorValue())
.as(value)
.doesNotThrowAnyException()
);
}
@Test
public final void testTemporalTimeValue() {
final String integral = "01:02:03";
final String fractional = "01:02:03.004";
final String offset = "01:02:03+05:00";
final String zero = "01:02:03Z";
assertThat(LocalTime.from(literal(integral, XSD_TIME).temporalAccessorValue()))
.isEqualTo(LocalTime.parse(integral));
assertThat(LocalTime.from(literal(fractional, XSD_TIME).temporalAccessorValue()))
.isEqualTo(LocalTime.parse(fractional));
assertThat(OffsetTime.from(literal(offset, XSD_TIME).temporalAccessorValue()))
.isEqualTo(OffsetTime.parse(offset));
assertThat(OffsetTime.from(literal(zero, XSD_TIME).temporalAccessorValue()))
.isEqualTo(OffsetTime.parse(zero));
}
@Test
public final void testTemporalDateValue() {
final String local = "2020-11-14";
final String offset = "2020-11-14+05:00";
final String zero = "2020-11-14Z";
assertThat(LocalDate.from(literal(local, XSD_DATE).temporalAccessorValue()))
.isEqualTo(LocalDate.parse(local));
assertThat(LocalDate.from(literal(offset, XSD_DATE).temporalAccessorValue()))
.isEqualTo(LocalDate.parse(offset.substring(0, 10))); // OffsetDate not supported by java.time
assertThat(LocalDate.from(literal(zero, XSD_DATE).temporalAccessorValue()))
.isEqualTo(LocalDate.parse(offset.substring(0, 10))); // OffsetDate not supported by java.time
}
@Test
public final void testTemporalGYearMonthValue() {
final String base = "2020-11";
assertThat(YearMonth.from(literal(base, XSD_GYEARMONTH).temporalAccessorValue()))
.isEqualTo(YearMonth.parse(base));
}
@Test
public final void testTemporalGYearValue() {
final String local = "2020";
assertThat(Year.from(literal(local, XSD_GYEAR).temporalAccessorValue()))
.isEqualTo(Year.parse(local));
}
@Test
public final void testTemporalGMonthDayValue() {
final String local = "--11-14";
assertThat(MonthDay.from(literal(local, XSD_GMONTHDAY).temporalAccessorValue()))
.isEqualTo(MonthDay.parse(local));
}
@Test
public final void testTemporalGDayValue() {
final String local = "---14";
assertThat(literal(local, XSD_GDAY).temporalAccessorValue().get(ChronoField.DAY_OF_MONTH))
.isEqualTo(14);
}
@Test
public final void testTemporalGMonthValue() {
final String local = "--11";
assertThat(Month.from(literal(local, XSD_GMONTH).temporalAccessorValue()))
.isEqualTo(Month.NOVEMBER);
}
@Test
public final void testTemporalAccessorMalformedValue() {
assertThatExceptionOfType(DateTimeException.class)
.isThrownBy(() -> literal("", XSD_DATETIME).temporalAccessorValue());
assertThatExceptionOfType(DateTimeException.class)
.isThrownBy(() -> literal("--", XSD_DATETIME).temporalAccessorValue());
assertThatExceptionOfType(DateTimeException.class).as("no time components")
.isThrownBy(() -> literal("2020-11-16T", XSD_DATETIME).temporalAccessorValue());
assertThatExceptionOfType(DateTimeException.class).as("missing fractional digits after dot")
.isThrownBy(() -> literal("2020-11-16T11:12:13.", XSD_DATETIME).temporalAccessorValue());
assertThatExceptionOfType(DateTimeException.class)
.isThrownBy(() -> literal("malformed", XSD_DATETIME).temporalAccessorValue());
assertThatExceptionOfType(DateTimeException.class).as("no time components")
.isThrownBy(() -> literal("2020-11-16T", XSD_DATETIME).temporalAccessorValue());
assertThatExceptionOfType(DateTimeException.class).as("missing fractional digits after dot")
.isThrownBy(() -> literal("2020-11-16T11:12:13.", XSD_DATETIME).temporalAccessorValue());
Stream.of(
"foo", "Mon, 11 Jul 2005 09:22:29 +0200",
"0001-01-01T00:00",
"0001-01-01T00:00.00",
"0001-13-01T00:00:00.00",
"0001-01-32T00:00:00.00",
// "0001-02-30T00:00:00.00",
// "2005-02-29T00:00:00", // not a leap year
// "0001-04-31T00:00:00.00",
"0001-01-01T25:00:00.00",
"0001-01-01T00:61:00.00",
"0001-01-01T00:00:61.00",
"0001-01-01T00:00.00+15:00",
"0001-01-01T00:00.00-15:00",
"001-01-01T00:00:00.0",
"0001-1-01T00:00:00.0",
"0001-01-1T00:00:00.0",
"0001-01-01T0:00:00.0",
"0001-01-01T00:0:00.0",
"0001-01-01T00:00:0.0",
"0001/01-01T00:00:00.0",
"0001-01/01T00:00:00.0",
"0001-01-01t00:00:00.0",
"0001-01-01T00.00:00.0",
"0001-01-01T00:00.00.0",
"0001-01-01T00:00:00:0",
"0001-01-01T00:00.00+0:00",
"0001-01-01T00:00.00+00:0",
"0001-jan-01T00:00:00",
"0001-01-01T00:00:00+00:00Z",
"0001-01-01T24:01:00", "0001-01-01T24:00:01",
"00001-01-01T00:00:00",
"0001-001-01T00:00:00",
"0001-01-001T00:00:00",
"0001-01-01T000:00:00",
"0001-01-01T00:000:00",
"0001-01-01T00:00:000",
"0001-01-01T00:00:000",
"0001-01-01T00:00:00z",
"0001-01-01T00:00:00+05",
"0001-01-01T00:00:00+0500",
"0001-01-01T00:00:00GMT",
"0001-01-01T00:00:00PST",
"0001-01-01T00:00:00GMT+05",
// "0000-01-01T00:00:00",
"-0000-01-01T00:00:00",
"+0001-01-01T00:00:00"
)
.forEach(value -> assertThatExceptionOfType(DateTimeException.class)
.as(value)
.isThrownBy(() -> literal(value, XSD_DATETIME).temporalAccessorValue())
);
}
@Test
public final void testTemporalDurationValue() {
final String period = "P1Y2M3D";
final String duration = "PT1H2M3.4S";
assertThat(Period.from(literal(period, XSD_DURATION).temporalAmountValue()))
.isEqualTo(Period.parse(period));
assertThat(Period.from(literal("-P1Y2M3D", XSD_DURATION).temporalAmountValue()))
.isEqualTo(Period.parse(period).negated());
assertThat(Duration.from(literal(duration, XSD_DURATION).temporalAmountValue()))
.isEqualTo(Duration.parse(duration));
}
@Test
public final void testTemporalAmountMalformedValue() {
assertThatExceptionOfType(DateTimeException.class)
.isThrownBy(() -> literal("", XSD_DURATION).temporalAmountValue());
assertThatExceptionOfType(DateTimeException.class)
.isThrownBy(() -> literal("malformed", XSD_DURATION).temporalAmountValue());
assertThatExceptionOfType(DateTimeException.class).as("no components")
.isThrownBy(() -> literal("P", XSD_DURATION).temporalAmountValue());
assertThatExceptionOfType(DateTimeException.class).as("no time components")
.isThrownBy(() -> literal("P1Y2MT", XSD_DURATION).temporalAmountValue());
assertThatExceptionOfType(DateTimeException.class).as("negative component")
.isThrownBy(() -> literal("P-1347M ", XSD_DURATION).temporalAmountValue());
assertThatExceptionOfType(DateTimeException.class).as("no time separator")
.isThrownBy(() -> literal("P1Y1S ", XSD_DURATION).temporalAmountValue());
assertThatExceptionOfType(DateTimeException.class).as("missing fractional digits after dot")
.isThrownBy(() -> literal("PT1.S", XSD_DURATION).temporalAmountValue());
}
@Test
public final void testCalendarValue() throws DatatypeConfigurationException {
final Class<XMLGregorianCalendar> type = XMLGregorianCalendar.class;
final DatatypeFactory factory = DatatypeFactory.newInstance();
final Function<Consumer<XMLGregorianCalendar>, XMLGregorianCalendar> setup = consumer -> {
final XMLGregorianCalendar calendar = factory.newXMLGregorianCalendar();
consumer.accept(calendar);
return calendar;
};
assertThat(literal("2020-09-29T01:02:03.004Z", XSD_DATETIME).calendarValue())
.isInstanceOf(type)
.isEqualTo(setup.apply(calendar -> {
calendar.setYear(2020);
calendar.setMonth(9);
calendar.setDay(29);
calendar.setTime(1, 2, 3, 4);
calendar.setTimezone(0);
}));
assertThat(literal("01:02:03.004", XSD_TIME).calendarValue())
.isInstanceOf(type)
.isEqualTo(setup.apply(calendar -> {
calendar.setTime(1, 2, 3, 4);
}));
assertThat(literal("2020-09-29", XSD_DATE).calendarValue())
.isInstanceOf(type)
.isEqualTo(setup.apply(calendar -> {
calendar.setYear(2020);
calendar.setMonth(9);
calendar.setDay(29);
}));
assertThat(literal("2020-09", XSD_GYEARMONTH).calendarValue())
.isInstanceOf(type)
.isEqualTo(setup.apply(calendar -> {
calendar.setYear(2020);
calendar.setMonth(9);
}));
assertThat(literal("--09-29", XSD_GMONTHDAY).calendarValue())
.isInstanceOf(type)
.isEqualTo(setup.apply(calendar -> {
calendar.setMonth(9);
calendar.setDay(29);
}));
assertThat(literal("2020", XSD_GYEAR).calendarValue())
.isInstanceOf(type)
.isEqualTo(setup.apply(calendar -> {
calendar.setYear(2020);
}));
assertThat(literal("--09", XSD_GMONTH).calendarValue())
.isInstanceOf(type)
.isEqualTo(setup.apply(calendar -> {
calendar.setMonth(9);
}));
assertThat(literal("---29", XSD_GDAY).calendarValue())
.isInstanceOf(type)
.isEqualTo(setup.apply(calendar -> {
calendar.setDay(29);
}));
assertThatIllegalArgumentException().as("not normalized")
.isThrownBy(() -> literal("\t100", XSD_DATETIME).calendarValue());
assertThatIllegalArgumentException().as("malformed")
.isThrownBy(() -> literal("malformed", XSD_DATETIME).calendarValue());
}
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
@Test
public void testEqualsAndHashCode() {
final Literal plain = literal("plain");
final Literal tagged = literal("tagged", "en");
final Literal typed = literal("typed", datatype("http://example.org/datatype"));
final Literal _plain = literal(plain.getLabel());
final Literal _tagged = literal(tagged.getLabel(), tagged.getLanguage().orElse(""));
final Literal _typed = literal(typed.getLabel(), typed.getDatatype());
assertThat(plain).isEqualTo(plain);
assertThat(plain).isEqualTo(_plain);
assertThat(tagged).isEqualTo(tagged);
assertThat(tagged).isEqualTo(_tagged);
assertThat(typed).isEqualTo(typed);
assertThat(typed).isEqualTo(_typed);
assertThat(plain).isNotEqualTo(null);
assertThat(plain).isNotEqualTo(new Object());
assertThat(plain).isNotEqualTo(tagged);
assertThat(plain).isNotEqualTo(typed);
assertThat(tagged).isNotEqualTo(typed);
assertThat(plain).isNotEqualTo(literal("other"));
assertThat(tagged).isNotEqualTo(literal(tagged.getLabel(), "other"));
assertThat(typed).isNotEqualTo(literal(typed.getLabel(), datatype("http://example.org/other")));
// hashCode() should return identical values for literals for which equals() is true
assertThat(plain.hashCode()).isEqualTo(_plain.hashCode());
assertThat(tagged.hashCode()).isEqualTo(_tagged.hashCode());
assertThat(typed.hashCode()).isEqualTo(_typed.hashCode());
assertThat(tagged.hashCode())
.as("computed according to contract")
.isEqualTo(tagged.getLabel().hashCode()); // !!! label >> label+language+datatype
}
@Test
public final void testEqualsAndHashCodeCaseInsensitiveLanguage() {
final Literal lowercase = literal("label", "en");
final Literal uppercase = literal("label", "EN");
assertThat(lowercase).isEqualTo(uppercase);
assertThat(lowercase.hashCode()).isEqualTo(uppercase.hashCode());
}
@Test
public final void testEqualsAndHashCodeXSDString() {
// in RDF 1.1, there is no distinction between plain and string-typed literals
final Literal plain = literal("label");
final Literal typed = literal("label", datatype(XSD_STRING));
assertThat(plain).isEqualTo(typed);
assertThat(plain.hashCode()).isEqualTo(typed.hashCode());
}
@Test
public final void testCoreDatatypePlainConstructor() {
String label = "label";
Literal literal = literal(label);
assertThat(literal.getLabel()).isEqualTo(label);
assertThat(literal.getLanguage()).isNotPresent();
assertThat(literal.getCoreDatatype()).isEqualTo(CoreDatatype.XSD.STRING);
assertThatNullPointerException().isThrownBy(() -> literal(null));
}
@Test
public final void testCoreDatatypePlainConstructorWithLongLabel() {
StringBuilder label = new StringBuilder(1000000);
for (int i = 0; i < 1000000; i++) {
label.append(Integer.toHexString(i % 16));
}
Literal literal = literal(label.toString());
assertThat(literal.getLabel()).isEqualTo(label.toString());
assertThat(literal.getLanguage()).isNotPresent();
assertThat(literal.getCoreDatatype()).isEqualTo(CoreDatatype.XSD.STRING);
}
@Test
public final void testCoreDatatypeTaggedConstructor() {
String label = "label";
String language = "en";
Literal literal = literal(label, language);
assertThat(literal.getLabel()).isEqualTo(label);
assertThat(literal.getLanguage()).contains(language);
assertThat(literal.getCoreDatatype()).isEqualTo(CoreDatatype.RDF.LANGSTRING);
assertThatNullPointerException().isThrownBy(() -> literal(null, (String) null));
assertThatNullPointerException().isThrownBy(() -> literal("", (String) null));
assertThatNullPointerException().isThrownBy(() -> literal(null, ""));
assertThatNullPointerException().isThrownBy(() -> literal(null, (CoreDatatype) null));
assertThatIllegalArgumentException().isThrownBy(() -> literal("", ""));
}
@Test
public final void testCoreDatatypeTypedConstructor() {
String label = "label";
String datatype = "http://examplle.org/datatype";
Literal literal = literal(label, datatype(datatype));
assertThat(literal.getLabel()).isEqualTo(label);
assertThat(literal.getLanguage()).isNotPresent();
assertThat(literal.getCoreDatatype()).isEqualTo(CoreDatatype.NONE);
assertThatNullPointerException().isThrownBy(() -> literal(null, (CoreDatatype) null));
assertThatNullPointerException().isThrownBy(() -> literal(null, CoreDatatype.XSD.STRING));
assertThatNullPointerException().isThrownBy(() -> literal(null, CoreDatatype.RDF.LANGSTRING));
assertThatIllegalArgumentException().isThrownBy(() -> literal("", CoreDatatype.RDF.LANGSTRING));
}
@Test(expected = NullPointerException.class)
public final void testCoreDatatypeTypedConstructorNullDatatype() {
literal("label", ((CoreDatatype) null));
}
//// String Value //////////////////////////////////////////////////////////////////////////////////////////////////
@Test
public void testCoreDatatypeStringValue() {
String label = "literal";
String language = "en";
CoreDatatype datatype = CoreDatatype.XSD.DECIMAL;
assertThat(literal(label).stringValue()).isEqualTo(label);
assertThat(literal(label, language).stringValue()).isEqualTo(label);
assertThat(literal(label, datatype).stringValue()).isEqualTo(label);
}
//// Object Values /////////////////////////////////////////////////////////////////////////////////////////////////
@Test
public void testCoreDatatypeBooleanValue() {
CoreDatatype datatype = CoreDatatype.XSD.BOOLEAN;
assertThat(literal("true", datatype).booleanValue()).isTrue();
assertThat(literal("false", datatype).booleanValue()).isFalse();
assertThat(literal("1", datatype).booleanValue()).isTrue();
assertThat(literal("0", datatype).booleanValue()).isFalse();
assertThat(literal("\ttrue", datatype).booleanValue()).isTrue();
assertThat(literal("false\t", datatype).booleanValue()).isFalse();
assertThatIllegalArgumentException().as("malformed")
.isThrownBy(() -> literal("malformed", datatype).booleanValue());
}
@Test
public final void testCoreDatatypeByteValue() {
CoreDatatype datatype = CoreDatatype.XSD.BYTE;
Class<Byte> type = Byte.class;
assertThat(literal("100", datatype).byteValue()).isInstanceOf(type).isEqualTo((byte) 100);
assertThat(literal("+100", datatype).byteValue()).isInstanceOf(type).isEqualTo((byte) 100);
assertThat(literal("-100", datatype).byteValue()).isInstanceOf(type).isEqualTo((byte) -100);
assertThatIllegalArgumentException().as("not normalized")
.isThrownBy(() -> literal("\t100", datatype).byteValue());
assertThatIllegalArgumentException().as("malformed")
.isThrownBy(() -> literal("malformed", datatype).booleanValue());
}
@Test
public final void testCoreDatatypeShortValue() {
CoreDatatype datatype = CoreDatatype.XSD.SHORT;
Class<Short> type = Short.class;
assertThat(literal("100", datatype).shortValue()).isInstanceOf(type).isEqualTo((short) 100);
assertThat(literal("+100", datatype).shortValue()).isInstanceOf(type).isEqualTo((short) 100);
assertThat(literal("-100", datatype).shortValue()).isInstanceOf(type).isEqualTo((short) -100);
assertThatIllegalArgumentException().as("not normalized")
.isThrownBy(() -> literal("\t100", datatype).shortValue());
assertThatIllegalArgumentException().as("malformed")
.isThrownBy(() -> literal("malformed", datatype).shortValue());
}
@Test
public final void testCoreDatatypeIntValue() {
CoreDatatype datatype = CoreDatatype.XSD.INT;
Class<Integer> type = Integer.class;
assertThat(literal("100", datatype).intValue()).isInstanceOf(type).isEqualTo(100);
assertThat(literal("+100", datatype).intValue()).isInstanceOf(type).isEqualTo(100);
assertThat(literal("-100", datatype).intValue()).isInstanceOf(type).isEqualTo(-100);
assertThatIllegalArgumentException().as("not normalized")
.isThrownBy(() -> literal("\t100", datatype).intValue());
assertThatIllegalArgumentException().as("malformed")
.isThrownBy(() -> literal("malformed", datatype).intValue());
}
@Test
public final void testCoreDatatypeLongValue() {
CoreDatatype datatype = CoreDatatype.XSD.LONG;
Class<Long> type = Long.class;
assertThat(literal("100", datatype).longValue()).isInstanceOf(type).isEqualTo(100);
assertThat(literal("+100", datatype).longValue()).isInstanceOf(type).isEqualTo(100);
assertThat(literal("-100", datatype).longValue()).isInstanceOf(type).isEqualTo(-100);
assertThatIllegalArgumentException().as("not normalized")
.isThrownBy(() -> literal("\t100", datatype).longValue());