/*
* Copyright (C) 2015 The Android Open Source Project
*
* Licensed 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.
*/
package com.android.layoutlib.bridge.impl;
import org.junit.Test;
import org.kxml2.io.KXmlParser;
import org.xmlpull.v1.XmlPullParser;
import org.xmlpull.v1.XmlPullParserException;
import java.io.StringReader;
import static com.android.SdkConstants.NS_RESOURCES;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNotSame;
import static org.xmlpull.v1.XmlPullParser.END_DOCUMENT;
import static org.xmlpull.v1.XmlPullParser.END_TAG;
import static org.xmlpull.v1.XmlPullParser.START_TAG;
public class LayoutParserWrapperTest {
@Test
@SuppressWarnings("StatementWithEmptyBody") // some for loops need to be empty statements.
public void testDataBindingLayout() throws Exception {
LayoutParserWrapper parser = getParserFromString(sDataBindingLayout);
parser.peekTillLayoutStart();
assertEquals("Expected START_TAG", START_TAG, parser.next());
assertEquals("RelativeLayout", parser.getName());
for (int next = parser.next(); next != START_TAG && next != END_DOCUMENT;
next = parser.next());
assertEquals("Expected START_TAG", START_TAG, parser.getEventType());
assertEquals("TextView", parser.getName());
assertEquals("layout_width incorrect for first text view.", "wrap_content",
parser.getAttributeValue(NS_RESOURCES, "layout_width"));
// Ensure that data-binding part is stripped.
assertEquals("Bound attribute android:text incorrect", "World",
parser.getAttributeValue(NS_RESOURCES, "text"));
assertEquals("resource attribute 'id' for first text view incorrect.", "@+id/first",
parser.getAttributeValue(NS_RESOURCES, "id"));
for (int next = parser.next();
(next != END_TAG || !"RelativeLayout".equals(parser.getName())) && next != END_DOCUMENT;
next = parser.next());
assertNotSame("Unexpected end of document", END_DOCUMENT, parser.getEventType());
assertEquals("Document didn't end when expected.", END_DOCUMENT, parser.next());
}
@Test
@SuppressWarnings("StatementWithEmptyBody")
public void testNonDataBindingLayout() throws Exception {
LayoutParserWrapper parser = getParserFromString(sNonDataBindingLayout);
parser.peekTillLayoutStart();
assertEquals("Expected START_TAG", START_TAG, parser.next());
assertEquals("RelativeLayout", parser.getName());
for (int next = parser.next(); next != START_TAG && next != END_DOCUMENT;
next = parser.next());
assertEquals("Expected START_TAG", START_TAG, parser.getEventType());
assertEquals("TextView", parser.getName());
assertEquals("layout_width incorrect for first text view.", "wrap_content",
parser.getAttributeValue(NS_RESOURCES, "layout_width"));
// Ensure that value isn't modified.
assertEquals("Bound attribute android:text incorrect", "@{user.firstName,default=World}",
parser.getAttributeValue(NS_RESOURCES, "text"));
assertEquals("resource attribute 'id' for first text view incorrect.", "@+id/first",
parser.getAttributeValue(NS_RESOURCES, "id"));
for (int next = parser.next();
(next != END_TAG || !"RelativeLayout".equals(parser.getName())) && next != END_DOCUMENT;
next = parser.next());
assertNotSame("Unexpected end of document", END_DOCUMENT, parser.getEventType());
assertEquals("Document didn't end when expected.", END_DOCUMENT, parser.next());
}
private static LayoutParserWrapper getParserFromString(String layoutContent) throws
XmlPullParserException {
XmlPullParser parser = new KXmlParser();
parser.setFeature(XmlPullParser.FEATURE_PROCESS_NAMESPACES, true);
parser.setInput(new StringReader(layoutContent));
return new LayoutParserWrapper(parser);
}
private static final String sDataBindingLayout =
//language=XML
"<?xml version=\"1.0\" encoding=\"utf-8\"?>\n" +
"<layout xmlns:android=\"http://schemas.android.com/apk/res/android\"\n" +
" xmlns:app=\"http://schemas.android.com/apk/res-auto\"\n" +
" xmlns:tools=\"http://schemas.android.com/tools\"\n" +
" tools:context=\".MainActivity\"\n" +
" tools:showIn=\"@layout/activity_main\">\n" +
"\n" +
" <data>\n" +
"\n" +
" <variable\n" +
" name=\"user\"\n" +
" type=\"com.example.User\" />\n" +
" <variable\n" +
" name=\"activity\"\n" +
" type=\"com.example.MainActivity\" />\n" +
" </data>\n" +
"\n" +
" <RelativeLayout\n" +
" android:layout_width=\"match_parent\"\n" +
" android:layout_height=\"match_parent\"\n" +
" android:paddingBottom=\"@dimen/activity_vertical_margin\"\n" +
" android:paddingLeft=\"@dimen/activity_horizontal_margin\"\n" +
" android:paddingRight=\"@dimen/activity_horizontal_margin\"\n" +
" android:paddingTop=\"@dimen/activity_vertical_margin\"\n" +
" app:layout_behavior=\"@string/appbar_scrolling_view_behavior\"\n" +
" >\n" +
"\n" +
" <TextView\n" +
" android:id=\"@+id/first\"\n" +
" android:layout_width=\"wrap_content\"\n" +
" android:layout_alignParentStart=\"true\"\n" +
" android:layout_alignParentLeft=\"true\"\n" +
" android:layout_height=\"wrap_content\"\n" +
" android:text=\"@{user.firstName,default=World}\" />\n" +
"\n" +
" <TextView\n" +
" android:id=\"@+id/last\"\n" +
" android:layout_width=\"wrap_content\"\n" +
" android:layout_height=\"wrap_content\"\n" +
" android:layout_toEndOf=\"@id/first\"\n" +
" android:layout_toRightOf=\"@id/first\"\n" +
" android:text=\"@{user.lastName,default=Hello}\" />\n" +
"\n" +
" <Button\n" +
" android:layout_width=\"wrap_content\"\n" +
" android:layout_height=\"wrap_content\"\n" +
" android:layout_below=\"@id/last\"\n" +
" android:text=\"Submit\"\n" +
" android:onClick=\"@{activity.onClick}\"/>\n" +
" </RelativeLayout>\n" +
"</layout>";
private static final String sNonDataBindingLayout =
//language=XML
"<RelativeLayout xmlns:android=\"http://schemas.android.com/apk/res/android\"\n" +
" xmlns:app=\"http://schemas.android.com/apk/res-auto\"\n" +
" android:layout_width=\"match_parent\"\n" +
" android:layout_height=\"match_parent\"\n" +
" android:paddingBottom=\"@dimen/activity_vertical_margin\"\n" +
" android:paddingLeft=\"@dimen/activity_horizontal_margin\"\n" +
" android:paddingRight=\"@dimen/activity_horizontal_margin\"\n" +
" android:paddingTop=\"@dimen/activity_vertical_margin\"\n" +
" app:layout_behavior=\"@string/appbar_scrolling_view_behavior\"\n" +
">\n" +
"\n" +
" <TextView\n" +
" android:id=\"@+id/first\"\n" +
" android:layout_width=\"wrap_content\"\n" +
" android:layout_alignParentStart=\"true\"\n" +
" android:layout_alignParentLeft=\"true\"\n" +
" android:layout_height=\"wrap_content\"\n" +
" android:text=\"@{user.firstName,default=World}\" />\n" +
"\n" +
" <TextView\n" +
" android:id=\"@+id/last\"\n" +
" android:layout_width=\"wrap_content\"\n" +
" android:layout_height=\"wrap_content\"\n" +
" android:layout_toEndOf=\"@id/first\"\n" +
" android:layout_toRightOf=\"@id/first\"\n" +
" android:text=\"@{user.lastName,default=Hello}\" />\n" +
"\n" +
" <Button\n" +
" android:layout_width=\"wrap_content\"\n" +
" android:layout_height=\"wrap_content\"\n" +
" android:layout_below=\"@id/last\"\n" +
" android:text=\"Submit\"\n" +
" android:onClick=\"@{activity.onClick}\"/>\n" +
"</RelativeLayout>";
}