1/*
2 * Copyright (C) 2015 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17#include "SourceXmlPullParser.h"
18#include "BindingXmlPullParser.h"
19
20#include <gtest/gtest.h>
21#include <sstream>
22#include <string>
23
24namespace aapt {
25
26constexpr const char16_t* kAndroidNamespaceUri = u"http://schemas.android.com/apk/res/android";
27
28TEST(BindingXmlPullParserTest, SubstituteBindingExpressionsWithTag) {
29    std::stringstream input;
30    input << "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n"
31          << "<LinearLayout xmlns:android=\"http://schemas.android.com/apk/res/android\"\n"
32          << "              xmlns:bind=\"http://schemas.android.com/apk/binding\"\n"
33          << "              android:id=\"@+id/content\">\n"
34          << "  <variable name=\"user\" type=\"com.android.test.User\"/>\n"
35          << "  <TextView android:text=\"@{user.name}\" android:layout_width=\"wrap_content\"\n"
36          << "            android:layout_height=\"wrap_content\"/>\n"
37          << "</LinearLayout>\n";
38    std::shared_ptr<XmlPullParser> sourceParser = std::make_shared<SourceXmlPullParser>(input);
39    BindingXmlPullParser parser(sourceParser);
40
41    ASSERT_EQ(XmlPullParser::Event::kStartNamespace, parser.next());
42    EXPECT_EQ(std::u16string(u"http://schemas.android.com/apk/res/android"),
43              parser.getNamespaceUri());
44
45    ASSERT_EQ(XmlPullParser::Event::kStartElement, parser.next());
46    EXPECT_EQ(std::u16string(u"LinearLayout"), parser.getElementName());
47
48    while (parser.next() == XmlPullParser::Event::kText) {}
49
50    ASSERT_EQ(XmlPullParser::Event::kStartElement, parser.getEvent());
51    EXPECT_EQ(std::u16string(u"TextView"), parser.getElementName());
52
53    ASSERT_EQ(3u, parser.getAttributeCount());
54    const auto endAttr = parser.endAttributes();
55    EXPECT_NE(endAttr, parser.findAttribute(kAndroidNamespaceUri, u"layout_width"));
56    EXPECT_NE(endAttr, parser.findAttribute(kAndroidNamespaceUri, u"layout_height"));
57    EXPECT_NE(endAttr, parser.findAttribute(kAndroidNamespaceUri, u"tag"));
58
59    while (parser.next() == XmlPullParser::Event::kText) {}
60
61    ASSERT_EQ(XmlPullParser::Event::kEndElement, parser.getEvent());
62
63    while (parser.next() == XmlPullParser::Event::kText) {}
64
65    ASSERT_EQ(XmlPullParser::Event::kEndElement, parser.getEvent());
66    ASSERT_EQ(XmlPullParser::Event::kEndNamespace, parser.next());
67}
68
69TEST(BindingXmlPullParserTest, GenerateVariableDeclarations) {
70    std::stringstream input;
71    input << "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n"
72          << "<LinearLayout xmlns:android=\"http://schemas.android.com/apk/res/android\"\n"
73          << "              xmlns:bind=\"http://schemas.android.com/apk/binding\"\n"
74          << "              android:id=\"@+id/content\">\n"
75          << "  <variable name=\"user\" type=\"com.android.test.User\"/>\n"
76          << "</LinearLayout>\n";
77    std::shared_ptr<XmlPullParser> sourceParser = std::make_shared<SourceXmlPullParser>(input);
78    BindingXmlPullParser parser(sourceParser);
79
80    while (XmlPullParser::isGoodEvent(parser.next())) {
81        ASSERT_NE(XmlPullParser::Event::kBadDocument, parser.getEvent());
82    }
83
84    std::stringstream output;
85    ASSERT_TRUE(parser.writeToFile(output));
86
87    std::string result = output.str();
88    EXPECT_NE(std::string::npos,
89              result.find("<entries name=\"user\" type=\"com.android.test.User\"/>"));
90}
91
92TEST(BindingXmlPullParserTest, FailOnMissingNameOrTypeInVariableDeclaration) {
93    std::stringstream input;
94    input << "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n"
95          << "<LinearLayout xmlns:android=\"http://schemas.android.com/apk/res/android\"\n"
96          << "              xmlns:bind=\"http://schemas.android.com/apk/binding\"\n"
97          << "              android:id=\"@+id/content\">\n"
98          << "  <variable name=\"user\"/>\n"
99          << "</LinearLayout>\n";
100    std::shared_ptr<XmlPullParser> sourceParser = std::make_shared<SourceXmlPullParser>(input);
101    BindingXmlPullParser parser(sourceParser);
102
103    while (XmlPullParser::isGoodEvent(parser.next())) {}
104
105    EXPECT_EQ(XmlPullParser::Event::kBadDocument, parser.getEvent());
106    EXPECT_FALSE(parser.getLastError().empty());
107}
108
109
110} // namespace aapt
111