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/*
* Copyright (C) 2019 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.
*/
#include <cstdio> // fclose
#include <memory>
#include <string>
#include "TestHelpers.h"
#include "androidfw/AssetsProvider.h"
#include "gtest/gtest.h"
#include "idmap2/XmlParser.h"
namespace android::idmap2 {
Result<XmlParser> CreateTestParser(const std::string& test_file) {
auto zip = ZipAssetsProvider::Create(GetTestDataPath() + "/target/target.apk", 0 /* flags */);
if (zip == nullptr) {
return Error("Failed to open zip file");
}
auto data = zip->Open(test_file);
if (data == nullptr) {
return Error("Failed to open xml file");
}
return XmlParser::Create(data->getBuffer(true /* aligned*/), data->getLength(),
/* copy_data */ true);
}
TEST(XmlParserTests, Create) {
auto xml = CreateTestParser("AndroidManifest.xml");
ASSERT_TRUE(xml) << xml.GetErrorMessage();
fclose(stderr); // silence expected warnings from libandroidfw
const char* not_xml = "foo";
auto fail = XmlParser::Create(reinterpret_cast<const uint8_t*>(not_xml), strlen(not_xml));
ASSERT_FALSE(fail);
}
TEST(XmlParserTests, NextChild) {
auto xml = CreateTestParser("res/xml/test.xml");
ASSERT_TRUE(xml) << xml.GetErrorMessage();
auto root_iter = xml->tree_iterator();
ASSERT_EQ(root_iter->event(), XmlParser::Event::START_TAG);
ASSERT_EQ(root_iter->name(), "a");
auto a_iter = root_iter.begin();
ASSERT_EQ(a_iter->event(), XmlParser::Event::START_TAG);
ASSERT_EQ(a_iter->name(), "b");
auto c_iter = a_iter.begin();
ASSERT_EQ(c_iter->event(), XmlParser::Event::START_TAG);
ASSERT_EQ(c_iter->name(), "c");
++c_iter;
ASSERT_EQ(c_iter->event(), XmlParser::Event::END_TAG);
ASSERT_EQ(c_iter, a_iter.end());
++a_iter;
ASSERT_EQ(a_iter->event(), XmlParser::Event::START_TAG);
ASSERT_EQ(a_iter->name(), "d");
// Skip the <e> tag.
++a_iter;
ASSERT_EQ(a_iter->event(), XmlParser::Event::END_TAG);
ASSERT_EQ(a_iter, root_iter.end());
}
TEST(XmlParserTests, AttributeValues) {
auto xml = CreateTestParser("res/xml/test.xml");
ASSERT_TRUE(xml) << xml.GetErrorMessage();
// Start at the <a> tag.
auto root_iter = xml->tree_iterator();
// Start at the <b> tag.
auto a_iter = root_iter.begin();
auto attribute_str = a_iter->GetAttributeStringValue("type_string");
ASSERT_TRUE(attribute_str);
ASSERT_EQ(*attribute_str, "fortytwo");
auto attribute_value = a_iter->GetAttributeValue("type_int_dec");
ASSERT_TRUE(attribute_value);
ASSERT_EQ(attribute_value->data, 42);
attribute_value = a_iter->GetAttributeValue("type_int_hex");
ASSERT_TRUE(attribute_value);
ASSERT_EQ(attribute_value->data, 42);
attribute_value = a_iter->GetAttributeValue("type_int_boolean");
ASSERT_TRUE(attribute_value);
ASSERT_EQ(attribute_value->data, 0xffffffff);
}
TEST(XmlParserTests, IteratorEquality) {
auto xml = CreateTestParser("res/xml/test.xml");
ASSERT_TRUE(xml) << xml.GetErrorMessage();
// Start at the <a> tag.
auto root_iter_1 = xml->tree_iterator();
auto root_iter_2 = xml->tree_iterator();
ASSERT_EQ(root_iter_1, root_iter_2);
ASSERT_EQ(*root_iter_1, *root_iter_2);
// Start at the <b> tag.
auto a_iter_1 = root_iter_1.begin();
auto a_iter_2 = root_iter_2.begin();
ASSERT_NE(a_iter_1, root_iter_1.end());
ASSERT_NE(a_iter_2, root_iter_2.end());
ASSERT_EQ(a_iter_1, a_iter_2);
ASSERT_EQ(*a_iter_1, *a_iter_2);
// Move to the <d> tag.
++a_iter_1;
++a_iter_2;
ASSERT_NE(a_iter_1, root_iter_1.end());
ASSERT_NE(a_iter_2, root_iter_2.end());
ASSERT_EQ(a_iter_1, a_iter_2);
ASSERT_EQ(*a_iter_1, *a_iter_2);
// Move to the end of the <a> tag.
++a_iter_1;
++a_iter_2;
ASSERT_EQ(a_iter_1, root_iter_1.end());
ASSERT_EQ(a_iter_2, root_iter_2.end());
ASSERT_EQ(a_iter_1, a_iter_2);
ASSERT_EQ(*a_iter_1, *a_iter_2);
}
TEST(XmlParserTests, Backtracking) {
auto xml = CreateTestParser("res/xml/test.xml");
ASSERT_TRUE(xml) << xml.GetErrorMessage();
// Start at the <a> tag.
auto root_iter_1 = xml->tree_iterator();
// Start at the <b> tag.
auto a_iter_1 = root_iter_1.begin();
// Start a second iterator at the <a> tag.
auto root_iter_2 = root_iter_1;
ASSERT_EQ(root_iter_1, root_iter_2);
ASSERT_EQ(*root_iter_1, *root_iter_2);
// Move the first iterator to the end of the <a> tag.
auto root_iter_end_1 = root_iter_1.end();
++root_iter_1;
ASSERT_NE(root_iter_1, root_iter_2);
ASSERT_NE(*root_iter_1, *root_iter_2);
// Move to the <d> tag.
++a_iter_1;
ASSERT_NE(a_iter_1, root_iter_end_1);
// Move to the end of the <a> tag.
++a_iter_1;
ASSERT_EQ(a_iter_1, root_iter_end_1);
}
} // namespace android::idmap2
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