public void testSerial() {
assertTrue(_nbhm.isEmpty());
final String k1 = "k1";
final String k2 = "k2";
assertThat(_nbhm.put(k1, "v1"), nullValue());
assertThat(_nbhm.put(k2, "v2"), nullValue());
// Serialize it out
try {
FileOutputStream fos = new FileOutputStream("NBHM_test.txt");
ObjectOutputStream out = new ObjectOutputStream(fos);
out.writeObject(_nbhm);
out.close();
} catch (IOException ex) {
ex.printStackTrace();
}
// Read it back
try {
File f = new File("NBHM_test.txt");
FileInputStream fis = new FileInputStream(f);
ObjectInputStream in = new ObjectInputStream(fis);
NonBlockingIdentityHashMap nbhm = (NonBlockingIdentityHashMap) in.readObject();
in.close();
assertThat(
"serialization works",
nbhm.toString(),
anyOf(is("{k1=v1, k2=v2}"), is("{k2=v2, k1=v1}")));
if (!f.delete()) throw new IOException("delete failed");
} catch (IOException ex) {
ex.printStackTrace();
} catch (ClassNotFoundException ex) {
ex.printStackTrace();
}
}
public void testIteration() {
assertTrue(_nbhm.isEmpty());
assertThat(_nbhm.put("k1", "v1"), nullValue());
assertThat(_nbhm.put("k2", "v2"), nullValue());
String str1 = "";
for (Iterator<Map.Entry<String, String>> i = _nbhm.entrySet().iterator(); i.hasNext(); ) {
Map.Entry<String, String> e = i.next();
str1 += e.getKey();
}
assertThat("found all entries", str1, anyOf(is("k1k2"), is("k2k1")));
String str2 = "";
for (Iterator<String> i = _nbhm.keySet().iterator(); i.hasNext(); ) {
String key = i.next();
str2 += key;
}
assertThat("found all keys", str2, anyOf(is("k1k2"), is("k2k1")));
String str3 = "";
for (Iterator<String> i = _nbhm.values().iterator(); i.hasNext(); ) {
String val = i.next();
str3 += val;
}
assertThat("found all vals", str3, anyOf(is("v1v2"), is("v2v1")));
assertThat(
"toString works", _nbhm.toString(), anyOf(is("{k1=v1, k2=v2}"), is("{k2=v2, k1=v1}")));
}