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FieldResultMapperTest.java
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FieldResultMapperTest.java
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/**
* Copyright (C) 2016 Czech Technical University in Prague
* <p>
* This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public
* License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later
* version.
* <p>
* This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied
* warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
* details. You should have received a copy of the GNU General Public License along with this program. If not, see
* <http://www.gnu.org/licenses/>.
*/
package cz.cvut.kbss.jopa.query.mapper;
import cz.cvut.kbss.jopa.environment.OWLClassA;
import cz.cvut.kbss.jopa.environment.OWLClassM;
import cz.cvut.kbss.jopa.exception.SparqlResultMappingException;
import cz.cvut.kbss.jopa.model.annotations.EntityResult;
import cz.cvut.kbss.jopa.model.annotations.FieldResult;
import cz.cvut.kbss.jopa.model.annotations.SparqlResultSetMapping;
import cz.cvut.kbss.jopa.model.metamodel.FieldSpecification;
import cz.cvut.kbss.jopa.sessions.UnitOfWork;
import cz.cvut.kbss.ontodriver.exception.OntoDriverException;
import cz.cvut.kbss.ontodriver.iteration.ResultRow;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;
import org.mockito.Mock;
import org.mockito.MockitoAnnotations;
import static org.hamcrest.CoreMatchers.containsString;
import static org.hamcrest.MatcherAssert.assertThat;
import static org.junit.jupiter.api.Assertions.*;
import static org.mockito.Mockito.*;
class FieldResultMapperTest {
@Mock
private ResultRow resultRow;
@Mock
private UnitOfWork uowMock;
@BeforeEach
void setUp() {
MockitoAnnotations.initMocks(this);
}
@SparqlResultSetMapping(name = "test", entities = {
@EntityResult(entityClass = WithMapping.class, fields = {
@FieldResult(name = "a", variable = "ax")
})
})
private static class WithMapping {
private static FieldResult getFieldResult() {
return WithMapping.class.getDeclaredAnnotation(SparqlResultSetMapping.class).entities()[0].fields()[0];
}
}
@Test
void mapThrowsResultMappingExceptionWhenValueCannotBeAssignedToField() throws Exception {
final FieldResult fieldResult = WithMapping.getFieldResult();
final FieldSpecification fsMock = mock(FieldSpecification.class);
when(fsMock.getJavaType()).thenReturn(Boolean.class);
when(fsMock.getJavaField()).thenReturn(OWLClassM.getBooleanAttributeField());
when(resultRow.isBound(fieldResult.variable())).thenReturn(true);
when(resultRow.getObject(fieldResult.variable())).thenReturn("string");
final FieldResultMapper mapper = new FieldResultMapper(fieldResult, fsMock);
final OWLClassM target = new OWLClassM();
final SparqlResultMappingException result =
assertThrows(SparqlResultMappingException.class, () -> mapper.map(resultRow, target, uowMock));
assertThat(result.getMessage(), containsString(
"Value " + resultRow.getObject(fieldResult.variable()) + " cannot be assigned to field of type " +
fsMock.getJavaType()));
assertNull(target.getBooleanAttribute());
}
@Test
void mapExtractsValueFromResultSetAndSetsItOnTargetObjectField() throws Exception {
final FieldResult fieldResult = WithMapping.getFieldResult();
final FieldSpecification fsMock = mock(FieldSpecification.class);
when(fsMock.getJavaType()).thenReturn(String.class);
when(fsMock.getJavaField()).thenReturn(OWLClassA.getStrAttField());
final String value = "stringValue";
when(resultRow.isBound(fieldResult.variable())).thenReturn(true);
when(resultRow.getObject(fieldResult.variable())).thenReturn(value);
final OWLClassA target = new OWLClassA();
final FieldResultMapper mapper = new FieldResultMapper(fieldResult, fsMock);
mapper.map(resultRow, target, uowMock);
verify(resultRow).getObject(fieldResult.variable());
assertEquals(value, target.getStringAttribute());
}
@Test
void mapSkipsVariablesNotPresentInResultSet() throws Exception {
final FieldResult fieldResult = WithMapping.getFieldResult();
final FieldSpecification fsMock = mock(FieldSpecification.class);
when(fsMock.getJavaType()).thenReturn(Boolean.class);
final OntoDriverException e = new OntoDriverException(
"Result set does not contain column " + fieldResult.variable() + ".");
when(resultRow.getObject(fieldResult.variable())).thenThrow(e);
final FieldResultMapper mapper = new FieldResultMapper(fieldResult, fsMock);
final OWLClassM target = new OWLClassM();
mapper.map(resultRow, target, uowMock);
assertNull(target.getBooleanAttribute());
}
@Test
void mapSkipsFieldForWhichVariableHasNoBindingInCurrentResultRow() throws Exception {
final FieldResult fieldResult = WithMapping.getFieldResult();
final FieldSpecification fsMock = mock(FieldSpecification.class);
when(fsMock.getJavaType()).thenReturn(Boolean.class);
when(resultRow.getObject(fieldResult.variable())).thenReturn(null);
final FieldResultMapper mapper = new FieldResultMapper(fieldResult, fsMock);
final OWLClassM target = new OWLClassM();
mapper.map(resultRow, target, uowMock);
assertNull(target.getBooleanAttribute());
}
}