1 files changed, 57 insertions, 0 deletions
diff --git a/container-search/src/test/java/com/yahoo/prelude/query/parser/TestSegmenter.java b/container-search/src/test/java/com/yahoo/prelude/query/parser/TestSegmenter.java
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+++ b/container-search/src/test/java/com/yahoo/prelude/query/parser/TestSegmenter.java
@@ -0,0 +1,57 @@
+// Copyright 2016 Yahoo Inc. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
+package com.yahoo.prelude.query.parser;
+
+import com.yahoo.language.Language;
+import com.yahoo.language.process.Segmenter;
+
+import java.util.List;
+
+/**
+ * @author bratseth
+ */
+public class TestSegmenter implements Segmenter {
+
+    /**
+     * <p>Splits "cd" and "fg" and every other single letter into separate tokens.</p>
+     * <p/>
+     * <p><b>Special case</b> for testing overlapping tokens:
+     * Any occurence of the string "bcd" will <b>not</b> split into the tokens
+     * "bc" and "d", but will instead split into "bc" and "cd".</p>
+     */
+    @Override
+    public List<String> segment(String string, Language language) {
+        List<String> tokens = new java.util.ArrayList<>();
+
+        // Tokenize
+        for (int i = 0; i < string.length(); i++) {
+            String token = startsByTestToken(string, i);
+            if (token != null) {
+                tokens.add(token);
+                i = i + token.length() - 1;
+            } else {
+                tokens.add(string.substring(i, i + 1));
+            }
+        }
+
+        // Special case
+        for (int i = 0; i < tokens.size(); i++) {
+            String token = tokens.get(i);
+            if (token.equals("bc") && tokens.size() > i + 1 && tokens.get(i + 1).equals("d")) {
+                tokens.set(i + 1, "cd");
+            }
+        }
+
+        return tokens;
+    }
+
+    private static final String[] testTokens = new String[] { "bc", "fg", "first", "second", "third" };
+
+    private static String startsByTestToken(String string, int index) {
+        for (String testToken : testTokens) {
+            if (string.startsWith(testToken, index)) {
+                return testToken;
+            }
+        }
+        return null;
+    }
+}