Move preference tests over from external/apache-harmony.

Also fixes all remaining failures. Most of them were
due to us not setting "user.dir" and "user.home" correctly.
Android has traditionally left those values blank. To fix
these tests, we need to change the default prefs factory
to one rooted at a temporary directory.

Note that this change attempts the minimal possible cleanup
(mainly style, commented code formatting etc.) to these files.

bug: 13881847

(cherry picked from commit a152f62d4d81ef6500b3e02dbc381e2414f9a11f)

Change-Id: Ie32a61e1b911dcd317c688f86e487f9ea778b31f

5 files changed, 205 insertions, 0 deletions

diff --git a/harmony-tests/src/test/resources/resources/prefs/java/util/prefs/userprefs-badencoding.xml b/harmony-tests/src/test/resources/resources/prefs/java/util/prefs/userprefs-badencoding.xml
new file mode 100644
index 0000000..182edc7
--- /dev/null
+++ b/harmony-tests/src/test/resources/resources/prefs/java/util/prefs/userprefs-badencoding.xml
@@ -0,0 +1,65 @@
+<?xml version="1.0" encoding="badencoding"?>
+
+<!--
+    Licensed to the Apache Software Foundation (ASF) under one
+    or more contributor license agreements.  See the NOTICE file
+    distributed with this work for additional information
+    regarding copyright ownership.  The ASF licenses this file
+    to you under the Apache License, Version 2.0 (the
+    "License"); you may not use this file except in compliance
+    with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing,
+    software distributed under the License is distributed on an
+    "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+    KIND, either express or implied.  See the License for the
+    specific language governing permissions and limitations
+    under the License.
+-->
+
+<!DOCTYPE preferences SYSTEM 'http://java.sun.com/dtd/preferences.dtd'>
+
+<preferences EXTERNAL_XML_VERSION="1.0">
+    <root type="user">
+        <map/>
+        <node name="tests">
+            <map/>
+            <node name="api">
+                <map/>
+                <node name="java">
+                    <map/>
+                    <node name="util">
+                        <map/>
+                        <node name="prefs">
+                            <map>
+                                <entry key="prefskey" value="newvalue"/>
+                                <entry key="prefskey3" value="newvalue3"/>
+                            </map>
+                            <node name="mock">
+                                <map/>
+                                <node name="child">
+                                    <map>
+                                        <entry key="key2" value="value2"/>
+                                    </map>
+                                    <node name="grandson">
+                                        <map>
+                                            <entry key="key3" value="value3"/>
+                                        </map>
+                                        <node name="grandgrandson">
+                                            <map>
+                                                <entry key="key4"
+                                                       value="value4"/>
+                                            </map>
+                                        </node>
+                                    </node>
+                                </node>
+                            </node>
+                        </node>
+                    </node>
+                </node>
+            </node>
+        </node>
+    </root>
+</preferences>
diff --git a/harmony-tests/src/test/resources/resources/prefs/java/util/prefs/userprefs-badform.xml b/harmony-tests/src/test/resources/resources/prefs/java/util/prefs/userprefs-badform.xml
new file mode 100644
index 0000000..da3aeb9
--- /dev/null
+++ b/harmony-tests/src/test/resources/resources/prefs/java/util/prefs/userprefs-badform.xml
@@ -0,0 +1,51 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<!--
+    Licensed to the Apache Software Foundation (ASF) under one
+    or more contributor license agreements.  See the NOTICE file
+    distributed with this work for additional information
+    regarding copyright ownership.  The ASF licenses this file
+    to you under the Apache License, Version 2.0 (the
+    "License"); you may not use this file except in compliance
+    with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing,
+    software distributed under the License is distributed on an
+    "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+    KIND, either express or implied.  See the License for the
+    specific language governing permissions and limitations
+    under the License.
+-->
+
+<!DOCTYPE preferences SYSTEM 'http://java.sun.com/dtd/preferences.dtd'>
+
+<preferences EXTERNAL_XML_VERSION="1.0">
+    <root type="user">
+        <map/>
+        <node name="java">
+            <map/>
+            <node name="util">
+                <map/>
+                    <node name="mock">
+                        <map/>
+                        <node name="child">
+                            <map>
+                                <entry key="key2" value="value2"/>
+                            </map>
+                            <node name="grandson">
+                                <map>
+                                    <entry key="key3" value="value3"/>
+                                </map>
+                                <node name="grandgrandson">
+                                    <map>
+                                        <entry key="key4" value="value4"/>
+                                    </map>
+                                </node>
+                            </node>
+                        </node>
+                </node>
+            </node>
+        </node>
+    </root>
diff --git a/harmony-tests/src/test/resources/resources/prefs/java/util/prefs/userprefs.xml b/harmony-tests/src/test/resources/resources/prefs/java/util/prefs/userprefs.xml
new file mode 100644
index 0000000..7bee4c7
--- /dev/null
+++ b/harmony-tests/src/test/resources/resources/prefs/java/util/prefs/userprefs.xml
@@ -0,0 +1,89 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<!--
+    Licensed to the Apache Software Foundation (ASF) under one
+    or more contributor license agreements.  See the NOTICE file
+    distributed with this work for additional information
+    regarding copyright ownership.  The ASF licenses this file
+    to you under the Apache License, Version 2.0 (the
+    "License"); you may not use this file except in compliance
+    with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing,
+    software distributed under the License is distributed on an
+    "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+    KIND, either express or implied.  See the License for the
+    specific language governing permissions and limitations
+    under the License.     
+-->
+
+<!DOCTYPE preferences SYSTEM 'http://java.sun.com/dtd/preferences.dtd'>
+
+<preferences EXTERNAL_XML_VERSION="1.0">
+    <root type="user">
+        <map/>
+        <node name="org">
+            <map/>
+            <node name="apache">
+                <map/>
+                <node name="harmony">
+                    <map/>
+                        <node name="tests">
+                            <map/>
+                            <node name="java">
+                                <map/>
+                                <node name="util">
+                                    <map/>
+
+                                    <node name="prefs">
+                                        <map>
+                                            <entry key="prefskey"
+                                                   value="newvalue"/>
+                                            <entry key="prefskey3"
+                                                   value="newvalue3"/>
+                                        </map>
+
+                                        <node name="mock">
+                                            <map/>
+                                            <node name="child">
+                                                <map>
+                                                    <entry key="key2"
+                                                           value="value2"/>
+                                                </map>
+                                                <node name="grandson">
+                                                    <map>
+                                                        <entry key="key3"
+                                                               value="value3"/>
+                                                    </map>
+                                                    <node name="grandgrandson">
+                                                        <map>
+                                                            <entry key="key4"
+                                                                   value="value4"/>
+                                                        </map>
+                                                    </node>
+                                                    <!--grandgrandson-->
+                                                </node>
+                                                <!--grandson-->
+                                            </node>
+                                            <!--child-->
+                                        </node>
+                                        <!--mock-->
+
+                                    </node>
+                                    <!--prefs-->
+                                </node>
+                                <!--util-->
+                            </node>
+                            <!--java-->
+                        </node>
+                        <!--tests-->
+                    </node>
+                <!--harmony-->
+            </node>
+            <!--apache-->
+        </node>
+        <!--org-->
+    </root>
+</preferences>
diff --git a/harmony-tests/src/test/resources/serialization/org/apache/harmony/tests/java/util/prefs/BackingStoreExceptionTest.golden.ser b/harmony-tests/src/test/resources/serialization/org/apache/harmony/tests/java/util/prefs/BackingStoreExceptionTest.golden.ser
new file mode 100644
index 0000000..4d26113
--- /dev/null
+++ b/harmony-tests/src/test/resources/serialization/org/apache/harmony/tests/java/util/prefs/BackingStoreExceptionTest.golden.ser
diff --git a/harmony-tests/src/test/resources/serialization/org/apache/harmony/tests/java/util/prefs/InvalidPreferencesFormatExceptionTest.golden.ser b/harmony-tests/src/test/resources/serialization/org/apache/harmony/tests/java/util/prefs/InvalidPreferencesFormatExceptionTest.golden.ser
new file mode 100644
index 0000000..a15948d
--- /dev/null
+++ b/harmony-tests/src/test/resources/serialization/org/apache/harmony/tests/java/util/prefs/InvalidPreferencesFormatExceptionTest.golden.ser