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// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.schema;
import com.yahoo.config.model.test.MockApplicationPackage;
import com.yahoo.document.DataType;
import com.yahoo.documentmodel.NewDocumentReferenceDataType;
import com.yahoo.schema.document.SDDocumentType;
import com.yahoo.schema.document.SDField;
import org.junit.jupiter.api.Test;
import java.util.Map;
import static java.util.Arrays.asList;
import static java.util.Collections.singletonList;
import static org.junit.jupiter.api.Assertions.*;
/**
* @author bjorncs
*/
public class DocumentReferenceResolverTest {
private static final String BAR = "bar";
private static final String FOO = "foo";
@Test
void reference_from_one_document_to_another_is_resolved() {
// Create bar document with no fields
Schema barSchema = new Schema(BAR, MockApplicationPackage.createEmpty());
SDDocumentType barDocument = new SDDocumentType(BAR, barSchema);
barSchema.addDocument(barDocument);
// Create foo document with document reference to bar and add another field
Schema fooSchema = new Schema(FOO, MockApplicationPackage.createEmpty());
SDDocumentType fooDocument = new SDDocumentType("foo", fooSchema);
SDField fooRefToBarField = new SDField
(fooDocument, "bar_ref", new NewDocumentReferenceDataType(barDocument.getDocumentType()));
AttributeUtils.addAttributeAspect(fooRefToBarField);
SDField irrelevantField = new SDField(fooDocument, "irrelevant_stuff", DataType.INT);
fooDocument.addField(fooRefToBarField);
fooDocument.addField(irrelevantField);
fooSchema.addDocument(fooDocument);
DocumentReferenceResolver resolver = new DocumentReferenceResolver(asList(fooSchema, barSchema));
resolver.resolveReferences(fooDocument);
assertTrue(fooDocument.getDocumentReferences().isPresent());
Map<String, DocumentReference> fooReferenceMap = fooDocument.getDocumentReferences().get().referenceMap();
assertEquals(1, fooReferenceMap.size());
assertSame(barSchema, fooReferenceMap.get("bar_ref").targetSearch());
assertSame(fooRefToBarField, fooReferenceMap.get("bar_ref").referenceField());
}
@SuppressWarnings("deprecation")
@Test
void throws_user_friendly_exception_if_referenced_document_does_not_exist() {
Throwable exception = assertThrows(IllegalArgumentException.class, () -> {
// Create foo document with document reference to non-existing document bar
Schema fooSchema = new Schema(FOO, MockApplicationPackage.createEmpty());
SDDocumentType fooDocument = new SDDocumentType("foo", fooSchema);
SDField fooRefToBarField = new SDField(
fooDocument,
"bar_ref", NewDocumentReferenceDataType.forDocumentName("bar"));
AttributeUtils.addAttributeAspect(fooRefToBarField);
fooDocument.addField(fooRefToBarField);
fooSchema.addDocument(fooDocument);
DocumentReferenceResolver resolver = new DocumentReferenceResolver(singletonList(fooSchema));
resolver.resolveReferences(fooDocument);
});
assertTrue(exception.getMessage().contains("Invalid document reference 'bar_ref': Could not find document type 'bar'"));
}
@Test
void throws_exception_if_reference_is_not_an_attribute() {
Throwable exception = assertThrows(IllegalArgumentException.class, () -> {
// Create bar document with no fields
Schema barSchema = new Schema(BAR, MockApplicationPackage.createEmpty());
SDDocumentType barDocument = new SDDocumentType("bar", barSchema);
barSchema.addDocument(barDocument);
// Create foo document with document reference to bar
Schema fooSchema = new Schema(FOO, MockApplicationPackage.createEmpty());
SDDocumentType fooDocument = new SDDocumentType("foo", fooSchema);
SDField fooRefToBarField = new SDField
(fooDocument, "bar_ref", new NewDocumentReferenceDataType(barDocument.getDocumentType()));
fooDocument.addField(fooRefToBarField);
fooSchema.addDocument(fooDocument);
DocumentReferenceResolver resolver = new DocumentReferenceResolver(asList(fooSchema, barSchema));
resolver.resolveReferences(fooDocument);
});
assertTrue(exception.getMessage().contains("The field 'bar_ref' is an invalid document reference. The field must be an attribute."));
}
}
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