Add tests for attribute resolution

- Adds unit tests for attribute resolution. These include
  some test data resource tables and compiled XML files.
- Convert touched files to Google style guide.

Test: make libandroidfw_tests
Change-Id: Ib3a36061dc874de5f6a266b4e82c0a12ef435f23

1 files changed, 201 insertions, 0 deletions

diff --git a/libs/androidfw/tests/AttributeResolution_test.cpp b/libs/androidfw/tests/AttributeResolution_test.cpp
new file mode 100644
index 000000000000..7fbe6d360010
--- /dev/null
+++ b/libs/androidfw/tests/AttributeResolution_test.cpp
@@ -0,0 +1,201 @@
+/*
+ * Copyright (C) 2016 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 "androidfw/AttributeResolution.h"
+#include "TestHelpers.h"
+#include "data/styles/R.h"
+
+#include <android-base/file.h>
+#include <android-base/macros.h>
+
+using namespace android;
+using android::base::ReadFileToString;
+using com::android::app::R;
+
+class AttributeResolutionTest : public ::testing::Test {
+ public:
+  virtual void SetUp() override {
+    std::string test_source_dir = TestSourceDir();
+    std::string contents;
+    LOG_ALWAYS_FATAL_IF(!ReadFileToString(test_source_dir + "/styles/resources.arsc", &contents));
+    LOG_ALWAYS_FATAL_IF(
+        table_.add(contents.data(), contents.size(), 1 /*cookie*/, true /*copyData*/) != NO_ERROR);
+  }
+
+ protected:
+  ResTable table_;
+};
+
+class AttributeResolutionXmlTest : public AttributeResolutionTest {
+ public:
+  virtual void SetUp() override {
+    AttributeResolutionTest::SetUp();
+    std::string test_source_dir = TestSourceDir();
+    std::string contents;
+    LOG_ALWAYS_FATAL_IF(!ReadFileToString(test_source_dir + "/styles/layout.xml", &contents));
+    LOG_ALWAYS_FATAL_IF(xml_parser_.setTo(contents.data(), contents.size(), true /*copyData*/) !=
+                        NO_ERROR);
+
+    // Skip to the first tag.
+    while (xml_parser_.next() != ResXMLParser::START_TAG) {
+    }
+  }
+
+ protected:
+  ResXMLTree xml_parser_;
+};
+
+TEST_F(AttributeResolutionTest, Theme) {
+  ResTable::Theme theme(table_);
+  ASSERT_EQ(NO_ERROR, theme.applyStyle(R::style::StyleTwo));
+
+  uint32_t attrs[] = {R::attr::attr_one, R::attr::attr_two, R::attr::attr_three,
+                      R::attr::attr_four};
+  std::vector<uint32_t> values;
+  values.resize(arraysize(attrs) * 6);
+
+  ASSERT_TRUE(ResolveAttrs(&theme, 0 /*def_style_attr*/, 0 /*def_style_res*/,
+                           nullptr /*src_values*/, 0 /*src_values_length*/, attrs, arraysize(attrs),
+                           values.data(), nullptr /*out_indices*/));
+
+  const uint32_t public_flag = ResTable_typeSpec::SPEC_PUBLIC;
+
+  const uint32_t* values_cursor = values.data();
+  EXPECT_EQ(Res_value::TYPE_INT_DEC, values_cursor[STYLE_TYPE]);
+  EXPECT_EQ(1u, values_cursor[STYLE_DATA]);
+  EXPECT_EQ(0u, values_cursor[STYLE_RESOURCE_ID]);
+  EXPECT_EQ(1u, values_cursor[STYLE_ASSET_COOKIE]);
+  EXPECT_EQ(0u, values_cursor[STYLE_DENSITY]);
+  EXPECT_EQ(public_flag, values_cursor[STYLE_CHANGING_CONFIGURATIONS]);
+
+  values_cursor += STYLE_NUM_ENTRIES;
+  EXPECT_EQ(Res_value::TYPE_STRING, values_cursor[STYLE_TYPE]);
+  EXPECT_EQ(0u, values_cursor[STYLE_RESOURCE_ID]);
+  EXPECT_EQ(1u, values_cursor[STYLE_ASSET_COOKIE]);
+  EXPECT_EQ(0u, values_cursor[STYLE_DENSITY]);
+  EXPECT_EQ(public_flag, values_cursor[STYLE_CHANGING_CONFIGURATIONS]);
+
+  values_cursor += STYLE_NUM_ENTRIES;
+  EXPECT_EQ(Res_value::TYPE_INT_DEC, values_cursor[STYLE_TYPE]);
+  EXPECT_EQ(3u, values_cursor[STYLE_DATA]);
+  EXPECT_EQ(0u, values_cursor[STYLE_RESOURCE_ID]);
+  EXPECT_EQ(1u, values_cursor[STYLE_ASSET_COOKIE]);
+  EXPECT_EQ(0u, values_cursor[STYLE_DENSITY]);
+  EXPECT_EQ(public_flag, values_cursor[STYLE_CHANGING_CONFIGURATIONS]);
+
+  values_cursor += STYLE_NUM_ENTRIES;
+  EXPECT_EQ(Res_value::TYPE_NULL, values_cursor[STYLE_TYPE]);
+  EXPECT_EQ(Res_value::DATA_NULL_UNDEFINED, values_cursor[STYLE_DATA]);
+  EXPECT_EQ(0u, values_cursor[STYLE_RESOURCE_ID]);
+  EXPECT_EQ(uint32_t(-1), values_cursor[STYLE_ASSET_COOKIE]);
+  EXPECT_EQ(0u, values_cursor[STYLE_DENSITY]);
+  EXPECT_EQ(0u, values_cursor[STYLE_CHANGING_CONFIGURATIONS]);
+}
+
+TEST_F(AttributeResolutionXmlTest, XmlParser) {
+  uint32_t attrs[] = {R::attr::attr_one, R::attr::attr_two, R::attr::attr_three,
+                      R::attr::attr_four};
+  std::vector<uint32_t> values;
+  values.resize(arraysize(attrs) * 6);
+
+  ASSERT_TRUE(RetrieveAttributes(&table_, &xml_parser_, attrs, arraysize(attrs), values.data(),
+                                 nullptr /*out_indices*/));
+
+  uint32_t* values_cursor = values.data();
+  EXPECT_EQ(Res_value::TYPE_NULL, values_cursor[STYLE_TYPE]);
+  EXPECT_EQ(0u, values_cursor[STYLE_DATA]);
+  EXPECT_EQ(0u, values_cursor[STYLE_RESOURCE_ID]);
+  EXPECT_EQ(uint32_t(-1), values_cursor[STYLE_ASSET_COOKIE]);
+  EXPECT_EQ(0u, values_cursor[STYLE_DENSITY]);
+  EXPECT_EQ(0u, values_cursor[STYLE_CHANGING_CONFIGURATIONS]);
+
+  values_cursor += STYLE_NUM_ENTRIES;
+  EXPECT_EQ(Res_value::TYPE_NULL, values_cursor[STYLE_TYPE]);
+  EXPECT_EQ(0u, values_cursor[STYLE_DATA]);
+  EXPECT_EQ(0u, values_cursor[STYLE_RESOURCE_ID]);
+  EXPECT_EQ(uint32_t(-1), values_cursor[STYLE_ASSET_COOKIE]);
+  EXPECT_EQ(0u, values_cursor[STYLE_DENSITY]);
+  EXPECT_EQ(0u, values_cursor[STYLE_CHANGING_CONFIGURATIONS]);
+
+  values_cursor += STYLE_NUM_ENTRIES;
+  EXPECT_EQ(Res_value::TYPE_INT_DEC, values_cursor[STYLE_TYPE]);
+  EXPECT_EQ(10u, values_cursor[STYLE_DATA]);
+  EXPECT_EQ(0u, values_cursor[STYLE_RESOURCE_ID]);
+  EXPECT_EQ(uint32_t(-1), values_cursor[STYLE_ASSET_COOKIE]);
+  EXPECT_EQ(0u, values_cursor[STYLE_DENSITY]);
+  EXPECT_EQ(0u, values_cursor[STYLE_CHANGING_CONFIGURATIONS]);
+
+  values_cursor += STYLE_NUM_ENTRIES;
+  EXPECT_EQ(Res_value::TYPE_ATTRIBUTE, values_cursor[STYLE_TYPE]);
+  EXPECT_EQ(R::attr::attr_indirect, values_cursor[STYLE_DATA]);
+  EXPECT_EQ(0u, values_cursor[STYLE_RESOURCE_ID]);
+  EXPECT_EQ(uint32_t(-1), values_cursor[STYLE_ASSET_COOKIE]);
+  EXPECT_EQ(0u, values_cursor[STYLE_DENSITY]);
+  EXPECT_EQ(0u, values_cursor[STYLE_CHANGING_CONFIGURATIONS]);
+}
+
+TEST_F(AttributeResolutionXmlTest, ThemeAndXmlParser) {
+  ResTable::Theme theme(table_);
+  ASSERT_EQ(NO_ERROR, theme.applyStyle(R::style::StyleTwo));
+
+  uint32_t attrs[] = {R::attr::attr_one, R::attr::attr_two, R::attr::attr_three, R::attr::attr_four,
+                      R::attr::attr_five};
+  std::vector<uint32_t> values;
+  values.resize(arraysize(attrs) * 6);
+
+  ASSERT_TRUE(ApplyStyle(&theme, &xml_parser_, 0 /*def_style_attr*/, 0 /*def_style_res*/, attrs,
+                         arraysize(attrs), values.data(), nullptr /*out_indices*/));
+
+  const uint32_t public_flag = ResTable_typeSpec::SPEC_PUBLIC;
+
+  uint32_t* values_cursor = values.data();
+  EXPECT_EQ(Res_value::TYPE_INT_DEC, values_cursor[STYLE_TYPE]);
+  EXPECT_EQ(1u, values_cursor[STYLE_DATA]);
+  EXPECT_EQ(0u, values_cursor[STYLE_RESOURCE_ID]);
+  EXPECT_EQ(1u, values_cursor[STYLE_ASSET_COOKIE]);
+  EXPECT_EQ(0u, values_cursor[STYLE_DENSITY]);
+  EXPECT_EQ(public_flag, values_cursor[STYLE_CHANGING_CONFIGURATIONS]);
+
+  values_cursor += STYLE_NUM_ENTRIES;
+  EXPECT_EQ(Res_value::TYPE_STRING, values_cursor[STYLE_TYPE]);
+  EXPECT_EQ(0u, values_cursor[STYLE_RESOURCE_ID]);
+  EXPECT_EQ(1u, values_cursor[STYLE_ASSET_COOKIE]);
+  EXPECT_EQ(0u, values_cursor[STYLE_DENSITY]);
+  EXPECT_EQ(public_flag, values_cursor[STYLE_CHANGING_CONFIGURATIONS]);
+
+  values_cursor += STYLE_NUM_ENTRIES;
+  EXPECT_EQ(Res_value::TYPE_INT_DEC, values_cursor[STYLE_TYPE]);
+  EXPECT_EQ(10u, values_cursor[STYLE_DATA]);
+  EXPECT_EQ(0u, values_cursor[STYLE_RESOURCE_ID]);
+  EXPECT_EQ(uint32_t(-1), values_cursor[STYLE_ASSET_COOKIE]);
+  EXPECT_EQ(0u, values_cursor[STYLE_DENSITY]);
+  EXPECT_EQ(0u, values_cursor[STYLE_CHANGING_CONFIGURATIONS]);
+
+  values_cursor += STYLE_NUM_ENTRIES;
+  EXPECT_EQ(Res_value::TYPE_INT_DEC, values_cursor[STYLE_TYPE]);
+  EXPECT_EQ(3u, values_cursor[STYLE_DATA]);
+  EXPECT_EQ(0u, values_cursor[STYLE_RESOURCE_ID]);
+  EXPECT_EQ(1u, values_cursor[STYLE_ASSET_COOKIE]);
+  EXPECT_EQ(0u, values_cursor[STYLE_DENSITY]);
+  EXPECT_EQ(public_flag, values_cursor[STYLE_CHANGING_CONFIGURATIONS]);
+
+  values_cursor += STYLE_NUM_ENTRIES;
+  EXPECT_EQ(Res_value::TYPE_STRING, values_cursor[STYLE_TYPE]);
+  EXPECT_EQ(R::string::string_one, values_cursor[STYLE_RESOURCE_ID]);
+  EXPECT_EQ(1u, values_cursor[STYLE_ASSET_COOKIE]);
+  EXPECT_EQ(0u, values_cursor[STYLE_DENSITY]);
+  EXPECT_EQ(public_flag, values_cursor[STYLE_CHANGING_CONFIGURATIONS]);
+}