/** In version 120, value "null" meant {code NULL}. */
public void testUpgrade() throws Exception {
final File file = new File(getContext().getCacheDir(), "setting.xml");
file.delete();
final Object lock = new Object();
final PrintStream os = new PrintStream(new FileOutputStream(file));
os.print(
"<?xml version='1.0' encoding='UTF-8' standalone='yes' ?>"
+ "<settings version=\"120\">"
+ " <setting id=\"0\" name=\"k0\" value=\"null\" package=\"null\" />"
+ " <setting id=\"1\" name=\"k1\" value=\"\" package=\"\" />"
+ " <setting id=\"2\" name=\"k2\" value=\"v2\" package=\"p2\" />"
+ "</settings>");
os.close();
final SettingsState ss =
new SettingsState(
lock,
file,
1,
SettingsState.MAX_BYTES_PER_APP_PACKAGE_UNLIMITED,
Looper.getMainLooper());
synchronized (lock) {
SettingsState.Setting s;
s = ss.getSettingLocked("k0");
assertEquals(null, s.getValue());
assertEquals("null", s.getPackageName());
s = ss.getSettingLocked("k1");
assertEquals("", s.getValue());
assertEquals("", s.getPackageName());
s = ss.getSettingLocked("k2");
assertEquals("v2", s.getValue());
assertEquals("p2", s.getPackageName());
}
}
/** Make sure settings can be written to a file and also can be read. */
public void testReadWrite() {
final File file = new File(getContext().getCacheDir(), "setting.xml");
file.delete();
final Object lock = new Object();
final SettingsState ssWriter =
new SettingsState(
lock,
file,
1,
SettingsState.MAX_BYTES_PER_APP_PACKAGE_UNLIMITED,
Looper.getMainLooper());
ssWriter.setVersionLocked(SettingsState.SETTINGS_VERSOIN_NEW_ENCODING);
ssWriter.insertSettingLocked("k1", "\u0000", "package");
ssWriter.insertSettingLocked("k2", "abc", "p2");
ssWriter.insertSettingLocked("k3", null, "p2");
ssWriter.insertSettingLocked("k4", CRAZY_STRING, "p3");
synchronized (lock) {
ssWriter.persistSyncLocked();
}
final SettingsState ssReader =
new SettingsState(
lock,
file,
1,
SettingsState.MAX_BYTES_PER_APP_PACKAGE_UNLIMITED,
Looper.getMainLooper());
synchronized (lock) {
assertEquals("\u0000", ssReader.getSettingLocked("k1").getValue());
assertEquals("abc", ssReader.getSettingLocked("k2").getValue());
assertEquals(null, ssReader.getSettingLocked("k3").getValue());
assertEquals(CRAZY_STRING, ssReader.getSettingLocked("k4").getValue());
}
}