| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package org.apache.lucene.search.spans; |
| |
| import java.io.IOException; |
| |
| import org.apache.lucene.index.Term; |
| import org.apache.lucene.search.QueryUtils; |
| |
| import static org.junit.Assert.*; |
| |
| /** Some utility methods used for testing span queries */ |
| public class SpanTestUtil { |
| |
| /** |
| * Adds additional asserts to a spanquery. Highly recommended |
| * if you want tests to actually be debuggable. |
| */ |
| public static SpanQuery spanQuery(SpanQuery query) { |
| QueryUtils.check(query); |
| return new AssertingSpanQuery(query); |
| } |
| |
| /** |
| * Makes a new SpanTermQuery (with additional asserts). |
| */ |
| public static SpanQuery spanTermQuery(String field, String term) { |
| return spanQuery(new SpanTermQuery(new Term(field, term))); |
| } |
| |
| /** |
| * Makes a new SpanOrQuery (with additional asserts) from the provided {@code terms}. |
| */ |
| public static SpanQuery spanOrQuery(String field, String... terms) { |
| SpanQuery[] subqueries = new SpanQuery[terms.length]; |
| for (int i = 0; i < terms.length; i++) { |
| subqueries[i] = spanTermQuery(field, terms[i]); |
| } |
| return spanOrQuery(subqueries); |
| } |
| |
| /** |
| * Makes a new SpanOrQuery (with additional asserts). |
| */ |
| public static SpanQuery spanOrQuery(SpanQuery... subqueries) { |
| return spanQuery(new SpanOrQuery(subqueries)); |
| } |
| |
| /** |
| * Makes a new SpanNotQuery (with additional asserts). |
| */ |
| public static SpanQuery spanNotQuery(SpanQuery include, SpanQuery exclude) { |
| return spanQuery(new SpanNotQuery(include, exclude)); |
| } |
| |
| /** |
| * Makes a new SpanNotQuery (with additional asserts). |
| */ |
| public static SpanQuery spanNotQuery(SpanQuery include, SpanQuery exclude, int pre, int post) { |
| return spanQuery(new SpanNotQuery(include, exclude, pre, post)); |
| } |
| |
| /** |
| * Makes a new SpanFirstQuery (with additional asserts). |
| */ |
| public static SpanQuery spanFirstQuery(SpanQuery query, int end) { |
| return spanQuery(new SpanFirstQuery(query, end)); |
| } |
| |
| /** |
| * Makes a new SpanPositionRangeQuery (with additional asserts). |
| */ |
| public static SpanQuery spanPositionRangeQuery(SpanQuery query, int start, int end) { |
| return spanQuery(new SpanPositionRangeQuery(query, start, end)); |
| } |
| |
| /** |
| * Makes a new SpanContainingQuery (with additional asserts). |
| */ |
| public static SpanQuery spanContainingQuery(SpanQuery big, SpanQuery little) { |
| return spanQuery(new SpanContainingQuery(big, little)); |
| } |
| |
| /** |
| * Makes a new SpanWithinQuery (with additional asserts). |
| */ |
| public static SpanQuery spanWithinQuery(SpanQuery big, SpanQuery little) { |
| return spanQuery(new SpanWithinQuery(big, little)); |
| } |
| |
| /** |
| * Makes a new ordered SpanNearQuery (with additional asserts) from the provided {@code terms} |
| */ |
| public static SpanQuery spanNearOrderedQuery(String field, int slop, String... terms) { |
| SpanQuery[] subqueries = new SpanQuery[terms.length]; |
| for (int i = 0; i < terms.length; i++) { |
| subqueries[i] = spanTermQuery(field, terms[i]); |
| } |
| return spanNearOrderedQuery(slop, subqueries); |
| } |
| |
| /** |
| * Makes a new ordered SpanNearQuery (with additional asserts) |
| */ |
| public static SpanQuery spanNearOrderedQuery(int slop, SpanQuery... subqueries) { |
| return spanQuery(new SpanNearQuery(subqueries, slop, true)); |
| } |
| |
| /** |
| * Makes a new unordered SpanNearQuery (with additional asserts) from the provided {@code terms} |
| */ |
| public static SpanQuery spanNearUnorderedQuery(String field, int slop, String... terms) { |
| SpanNearQuery.Builder builder = SpanNearQuery.newUnorderedNearQuery(field); |
| builder.setSlop(slop); |
| for (String term : terms) { |
| builder.addClause(new SpanTermQuery(new Term(field, term))); |
| } |
| return spanQuery(builder.build()); |
| } |
| |
| /** |
| * Makes a new unordered SpanNearQuery (with additional asserts) |
| */ |
| public static SpanQuery spanNearUnorderedQuery(int slop, SpanQuery... subqueries) { |
| return spanQuery(new SpanNearQuery(subqueries, slop, false)); |
| } |
| |
| /** |
| * Assert the next iteration from {@code spans} is a match |
| * from {@code start} to {@code end} in {@code doc}. |
| */ |
| public static void assertNext(Spans spans, int doc, int start, int end) throws IOException { |
| if (spans.docID() >= doc) { |
| assertEquals("docId", doc, spans.docID()); |
| } else { // nextDoc needed before testing start/end |
| if (spans.docID() >= 0) { |
| assertEquals("nextStartPosition of previous doc", Spans.NO_MORE_POSITIONS, spans.nextStartPosition()); |
| assertEquals("endPosition of previous doc", Spans.NO_MORE_POSITIONS, spans.endPosition()); |
| } |
| assertEquals("nextDoc", doc, spans.nextDoc()); |
| if (doc != Spans.NO_MORE_DOCS) { |
| assertEquals("first startPosition", -1, spans.startPosition()); |
| assertEquals("first endPosition", -1, spans.endPosition()); |
| } |
| } |
| if (doc != Spans.NO_MORE_DOCS) { |
| assertEquals("nextStartPosition", start, spans.nextStartPosition()); |
| assertEquals("startPosition", start, spans.startPosition()); |
| assertEquals("endPosition", end, spans.endPosition()); |
| } |
| } |
| |
| /** |
| * Assert that {@code spans} is exhausted. |
| */ |
| public static void assertFinished(Spans spans) throws Exception { |
| if (spans != null) { // null Spans is empty |
| assertNext(spans, Spans.NO_MORE_DOCS, -2, -2); // start and end positions will be ignored |
| } |
| } |
| } |