Github user alessandrobenedetti commented on a diff in the pull request:
https://github.com/apache/lucene-solr/pull/389#discussion_r223773915
--- Diff:
lucene/queries/src/test/org/apache/lucene/queries/mlt/TestMoreLikeThis.java ---
@@ -186,6 +200,117 @@ public void testMultiValues() throws Exception {
analyzer.close();
}
+ public void
testLiveMapDocument_minTermFrequencySet_shouldBuildQueryAccordingToCorrectTermFrequencies()
throws Exception {
+ MoreLikeThis mlt = new MoreLikeThis(reader);
+ Analyzer analyzer = new MockAnalyzer(random(),
MockTokenizer.WHITESPACE, false);
+ mlt.setAnalyzer(analyzer);
+ mlt.setMinDocFreq(0);
+ mlt.setMinTermFreq(3);
+ mlt.setMinWordLen(1);
+ String sampleField1 = "text";
+ String sampleField2 = "text2";
+ mlt.setFieldNames(new String[]{sampleField1, sampleField2});
+
+ Map<String, Collection<Object>> filteredDocument = new HashMap<>();
+ String textValue = "apache apache lucene lucene lucene";
+ filteredDocument.put(sampleField1, Arrays.asList(textValue));
+ filteredDocument.put(sampleField2, Arrays.asList(textValue));
+
+ BooleanQuery query = (BooleanQuery) mlt.like(filteredDocument);
+ Collection<BooleanClause> clauses = query.clauses();
+ assertEquals("Expected 1 clauses only!", 1, clauses.size());
+ for (BooleanClause clause : clauses) {
+ Term term = ((TermQuery) clause.getQuery()).getTerm();
+ assertThat(term, is(new Term(sampleField1, "lucene")));
+ }
+ analyzer.close();
+ }
+
+ public void
testLiveMapDocument_minTermFrequencySet_shouldBuildQueryWithCorrectTerms()
throws Exception {
+ MoreLikeThis mlt = new MoreLikeThis(reader);
+ Analyzer analyzer = new MockAnalyzer(random(),
MockTokenizer.WHITESPACE, false);
+ mlt.setAnalyzer(analyzer);
+ mlt.setMinDocFreq(0);
+ mlt.setMinTermFreq(3);
+ mlt.setMinWordLen(1);
+ String sampleField1 = "text";
+ String sampleField2 = "text2";
+ mlt.setFieldNames(new String[]{sampleField1});
+
+ Map<String, Collection<Object>> filteredDocument = new HashMap<>();
+ String textValue1 = "apache apache lucene lucene";
+ String textValue2 = "apache2 apache2 lucene2 lucene2 lucene2";
+ filteredDocument.put(sampleField1, Arrays.asList(textValue1));
+ filteredDocument.put(sampleField2, Arrays.asList(textValue2));
+
+ BooleanQuery query = (BooleanQuery) mlt.like(filteredDocument);
+ Collection<BooleanClause> clauses = query.clauses();
+
+ HashSet<Term> unexpectedTerms = new HashSet<>();
+ unexpectedTerms.add(new Term("text", "apache"));//Term Frequency <
Minimum Accepted Term Frequency
+ unexpectedTerms.add(new Term("text", "lucene"));//Term Frequency <
Minimum Accepted Term Frequency
+ unexpectedTerms.add(new Term("text", "apache2"));//Term Frequency <
Minimum Accepted Term Frequency
+ unexpectedTerms.add(new Term("text", "lucene2"));//Wrong Field
+
+ //None of the Not Expected terms is in the query
+ for (BooleanClause clause : clauses) {
+ Term term = ((TermQuery) clause.getQuery()).getTerm();
+ assertFalse("Unexpected term '" + term + "' found in query terms",
unexpectedTerms.contains(term));
+ }
+
+ assertEquals("Expected 0 clauses only!", 0, clauses.size());
+
+ analyzer.close();
+ }
+
+ public void
testLiveMapDocument_queryFieldsSet_shouldBuildQueryFromSpecifiedFieldnamesOnly()
throws Exception {
+ MoreLikeThis mlt = new MoreLikeThis(reader);
+ Analyzer analyzer = new MockAnalyzer(random(),
MockTokenizer.WHITESPACE, false);
+ mlt.setAnalyzer(analyzer);
+ mlt.setMinDocFreq(1);
+ mlt.setMinTermFreq(2);
+ mlt.setMinWordLen(1);
+ String sampleField1 = "text";
+ String sampleField2 = "text2";
+ mlt.setFieldNames(new String[]{sampleField1});
+
+ Map<String, Collection<Object>> filteredDocument = new HashMap<>();
+ String textValue1 = "apache apache lucene lucene";
+ String textValue2 = "apache2 apache2 lucene2 lucene2 lucene2";
+ filteredDocument.put(sampleField1, Arrays.asList(textValue1));
+ filteredDocument.put(sampleField2, Arrays.asList(textValue2));
+
+ BooleanQuery query = (BooleanQuery) mlt.like(filteredDocument);
+ Collection<BooleanClause> clauses = query.clauses();
+ HashSet<Term> clausesTerms = new HashSet<>();
+ for (BooleanClause clause : clauses) {
+ Term term = ((TermQuery) clause.getQuery()).getTerm();
+ clausesTerms.add(term);
+ }
+ assertEquals("Expected 2 clauses only!", 2, clauses.size());
+
+ HashSet<Term> expectedTerms = new HashSet<>();
--- End diff --
move to the beginning
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