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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.vespa.model.content;
import com.yahoo.documentmodel.NewDocumentType;
import org.junit.jupiter.api.Test;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.List;
import java.util.Set;
import java.util.stream.Collectors;
import static org.junit.jupiter.api.Assertions.assertEquals;
/**
* @author geirst
*/
public class TopologicalDocumentTypeSorterTest {
@Test
void require_that_types_without_references_are_returned_in_input_order() {
assertOrder(Arrays.asList("a"), new DocumentTypesBuilder().add("a"));
assertOrder(Arrays.asList("a", "c", "b"),
new DocumentTypesBuilder().add("a").add("c").add("b"));
}
@Test
void require_that_types_with_references_are_sorted_in_topological_order() {
assertOrder(Arrays.asList("b", "a"), new DocumentTypesBuilder()
.add("a", Arrays.asList("b"))
.add("b"));
assertOrder(Arrays.asList("c", "b", "a"), new DocumentTypesBuilder()
.add("a", Arrays.asList("b", "c"))
.add("b", Arrays.asList("c"))
.add("c"));
assertOrder(Arrays.asList("b", "a", "d", "c"), new DocumentTypesBuilder()
.add("a", Arrays.asList("b"))
.add("b")
.add("c", Arrays.asList("d"))
.add("d"));
}
private void assertOrder(List<String> expOrder, DocumentTypesBuilder builder) {
List<NewDocumentType> sortedDocTypes = TopologicalDocumentTypeSorter.sort(builder.build());
List<String> actOrder = sortedDocTypes.stream().map(NewDocumentType::getName).toList();
assertEquals(expOrder, actOrder);
}
private static class DocumentTypesBuilder {
private final List<NewDocumentType> result = new ArrayList<>();
public DocumentTypesBuilder add(String docTypeName) {
return add(docTypeName, Collections.emptyList());
}
public DocumentTypesBuilder add(String docTypeName, List<String> docTypeNameReferences) {
Set<NewDocumentType.Name> documentReferences =
docTypeNameReferences.stream().map(NewDocumentType.Name::new).collect(Collectors.toSet());
result.add(new NewDocumentType(new NewDocumentType.Name(docTypeName), documentReferences));
return this;
}
public List<NewDocumentType> build() {
return result;
}
}
}
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