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}"))); }