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Fix bug 3565008 so that short substrings are backed by short arrays.

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This commit is contained in:
James Roseborough
2013-01-26 20:00:04 +00:00
parent f1b421d25c
commit 79ddb79c4d
1 changed files with 18 additions and 1 deletions
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17
test/junit/org/luaj/vm2/StringTest.java
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@@ -191,6 +191,23 @@ public class StringTest extends TestCase {
assertNotSame(abc3, abc4); // because of hash collision assertNotSame(abc3, abc4); // because of hash collision
assertNotSame(lyz3, lyz4); // because of hash collision assertNotSame(lyz3, lyz4); // because of hash collision
assertSame(xyz3, xyz4); // because hashes do not collide assertSame(xyz3, xyz4); // because hashes do not collide
}
public void testLongSubstringGetsOldBacking() {
LuaString src = LuaString.valueOf("abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ");
LuaString sub1 = src.substring(10, 40);
assertSame(src.m_bytes, sub1.m_bytes);
assertEquals(sub1.m_offset, 10);
assertEquals(sub1.m_length, 30);
}
public void testShortSubstringGetsNewBacking() {
LuaString src = LuaString.valueOf("abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ");
LuaString sub1 = src.substring(10, 20);
LuaString sub2 = src.substring(10, 20);
assertEquals(sub1.m_offset, 0);
assertEquals(sub1.m_length, 10);
assertSame(sub1, sub2);
assertFalse(src.m_bytes == sub1.m_bytes);
} }
} }