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[COLLECTIONS 714] Add tests #78

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[COLLECTIONS 714] Add tests #78

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24 changes: 24 additions & 0 deletions src/test/java/org/apache/commons/collections4/trie/PatriciaTrieTest.java
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Original file line number Diff line number Diff line change
Expand Up @@ -20,6 +20,7 @@
import java.util.Arrays;
import java.util.ConcurrentModificationException;
import java.util.HashSet;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
import java.util.NoSuchElementException;
Expand Down Expand Up @@ -427,6 +428,29 @@ public void testPrefixMapClearUsingRemove() {
assertEquals(Arrays.asList(2, 3, 7, 1), new ArrayList<>(trie.values()));
}

public void testNullTerminatedKey1() {
// COLLECTIONS-714
Map<String, Integer> map = new HashMap<>();
map.put("x", 0); // key of length 1
map.put("x\u0000", 1); // key of length 2
map.put("x\u0000y", 2); // key of length 3
Assert.assertEquals(3, map.size()); // 3 keys in map

PatriciaTrie<Integer> trie = new PatriciaTrie<>(map);
Assert.assertEquals(3, trie.size()); // 3 keys in corresponding trie
}

public void testNullTerminatedKey2() {
// COLLECTIONS-714
PatriciaTrie<Integer> trie = new PatriciaTrie<>();
trie.put("x", 0);
Assert.assertTrue(trie.containsKey("x")); // just inserted

trie.put("x\u0000", 1);
Assert.assertTrue(trie.containsKey("x\u0000")); // just inserted
Assert.assertTrue(trie.containsKey("x")); // previously inserted; not removed
}

//-----------------------------------------------------------------------

@Override
Expand Down