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Add a test to ensure TreeMap's (de)serialization compatibility with OpenJDK

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Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
This commit is contained in:
Johannes Schindelin 2013-10-30 13:31:27 -05:00
parent a90b3ae574
commit 7e72f4362b
1 changed files with 47 additions and 0 deletions
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47
test/Serialize.java
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@ -3,6 +3,7 @@ import java.io.ByteArrayOutputStream;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.io.Serializable;
import java.util.TreeMap;
public class Serialize implements Serializable {
public static final long serialVersionUID = 1l;
@ -112,5 +113,51 @@ public class Serialize implements Serializable {
Serialize unserialized = (Serialize) in2.readObject();
expectEqual(0x12345678, unserialized.dummy);
in2.close();
out.reset();
out2 = new ObjectOutputStream(out);
TreeMap map = new TreeMap();
map.put("key", "value");
out2.writeObject(map);
out2.close();
array = out.toByteArray();
expectEqual(array, new int[] {
// magic
0xac, 0xed,
// version
0x00, 0x05,
// object
0x73,
// class desc "java.util.TreeMap"
0x72, 0, 17, 'j', 'a', 'v', 'a', '.', 'u', 't', 'i', 'l', '.',
'T', 'r', 'e', 'e', 'M', 'a', 'p',
// serial version UID: 0x0cc1f64e2d266ae6
0x0c, 0xc1, 0xf6, 0x3e, 0x2d, 0x25, 0x6a, 0xe6,
// flags: SC_SERIALIZABLE | SC_WRITE_METHOD
0x03,
// 1 field: comparator
0, 1, 'L', 0, 10, 'c', 'o', 'm', 'p', 'a', 'r', 'a', 't', 'o', 'r',
0x74, 0, 22, 'L', 'j', 'a', 'v', 'a', '/', 'u', 't', 'i', 'l', '/',
'C', 'o', 'm', 'p', 'a', 'r', 'a', 't', 'o', 'r', ';',
// class annotation
0x78,
// super class desc
0x70,
// classdata[]: NULL
0x70,
// custom TreeMap data writte by TreeMap#writeObject
0x77, 4, 0x00 , 0x00, 0x00, 0x01, // (int)1 (== map.size())
0x74, 0, 3, 'k', 'e', 'y', // "key"
0x74, 0, 5, 'v', 'a', 'l', 'u', 'e', // "value"
// end block data
0x78
});
map.put("Hello", "ween");
in = new ByteArrayInputStream(array);
in2 = new ObjectInputStream(in);
map = (TreeMap)in2.readObject();
in2.close();
expectEqual(1, map.size());
expectEqual("value", (String)map.get("key"));
}
}