Audio VTS: Enforce policy configuration format (19b3e43f) · Commits · e / os / android_hardware_interfaces

audio/2.0/vts/functional/Android.mk

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		@@ -21,6 +21,8 @@ LOCAL_MODULE := VtsHalAudioV2_0TargetTest
		LOCAL_CPPFLAGS := -O0 -g -Wall -Wextra -Werror
		LOCAL_SRC_FILES := \
		AudioPrimaryHidlHalTest.cpp \
		ValidateAudioConfiguration.cpp \
		utility/ValidateXml.cpp

		LOCAL_C_INCLUDES := external/libxml2/include

audio/2.0/vts/functional/ValidateAudioConfiguration.cpp

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		/*
		* Copyright (C) 2017 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 "utility/ValidateXml.h"

		TEST(CheckConfig, audioPolicyConfigurationValidation) {
		ASSERT_VALID_XML("/vendor/etc/audio_policy_configuration.xml",
		"/data/local/tmp/audio_policy_configuration.xsd");
		}

audio/2.0/vts/functional/utility/ValidateXml.cpp

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		/*
		* Copyright (C) 2017 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.
		*/

		#define LOG_TAG "ValidateAudioConfig"
		#include <utils/Log.h>

		#define LIBXML_SCHEMAS_ENABLED
		#include <libxml/xmlschemastypes.h>
		#define LIBXML_XINCLUDE_ENABLED
		#include <libxml/xinclude.h>

		#include <memory>
		#include <string>

		#include "ValidateXml.h"

		namespace android {
		namespace hardware {
		namespace audio {
		namespace test {

		/** Map libxml2 structures to their corresponding deleters. */
		template <class T>
		constexpr void (xmlDeleter)(T t);
		template <>
		constexpr auto xmlDeleter<xmlSchema> = xmlSchemaFree;
		template <>
		constexpr auto xmlDeleter<xmlDoc> = xmlFreeDoc;
		template <>
		constexpr auto xmlDeleter<xmlSchemaParserCtxt> = xmlSchemaFreeParserCtxt;
		template <>
		constexpr auto xmlDeleter<xmlSchemaValidCtxt> = xmlSchemaFreeValidCtxt;

		/** @return a unique_ptr with the correct deleter for the libxml2 object. */
		template <class T>
		constexpr auto make_xmlUnique(T* t) {
		// Wrap deleter in lambda to enable empty base optimization
		auto deleter = [](T* t) { xmlDeleter<T>(t); };
		return std::unique_ptr<T, decltype(deleter)>{t, deleter};
		}

		/** Class that handles libxml2 initialization and cleanup. NOT THREAD SAFE*/
		struct Libxml2Global {
		Libxml2Global() {
		xmlLineNumbersDefault(1); // Better error message
		xmlSetGenericErrorFunc(this, errorCb);
		}
		~Libxml2Global() {
		// TODO: check if all those cleanup are needed
		xmlSetGenericErrorFunc(nullptr, nullptr);
		xmlSchemaCleanupTypes();
		xmlCleanupParser();
		xmlCleanupThreads();
		}

		const std::string& getErrors() { return errors; }

		private:
		static void errorCb(void* ctxt, const char* msg, ...) {
		auto* self = static_cast<Libxml2Global*>(ctxt);
		va_list args;
		va_start(args, msg);

		char* formatedMsg;
		if (vasprintf(&formatedMsg, msg, args) >= 0) {
		LOG_PRI(ANDROID_LOG_ERROR, LOG_TAG, "%s", formatedMsg);
		self->errors += "Error: ";
		self->errors += formatedMsg;
		}
		free(formatedMsg);

		va_end(args);
		}
		std::string errors;
		};

		::testing::AssertionResult validateXml(const char* xmlFilePathExpr,
		const char* xsdFilePathExpr,
		const char* xmlFilePath,
		const char* xsdFilePath) {
		Libxml2Global libxml2;

		auto context = [&]() {
		return std::string() + " While validating: " + xmlFilePathExpr +
		"\n Which is: " + xmlFilePath +
		"\nAgainst the schema: " + xsdFilePathExpr +
		"\n Which is: " + xsdFilePath + "Libxml2 errors\n" +
		libxml2.getErrors();
		};

		auto schemaParserCtxt = make_xmlUnique(xmlSchemaNewParserCtxt(xsdFilePath));
		auto schema = make_xmlUnique(xmlSchemaParse(schemaParserCtxt.get()));
		if (schema == nullptr) {
		return ::testing::AssertionFailure() << "Failed to parse schema (xsd)\n"
		<< context();
		}

		auto doc = make_xmlUnique(xmlReadFile(xmlFilePath, nullptr, 0));
		if (doc == nullptr) {
		return ::testing::AssertionFailure() << "Failed to parse xml\n"
		<< context();
		}

		if (xmlXIncludeProcess(doc.get()) == -1) {
		return ::testing::AssertionFailure()
		<< "Failed to resolve xincludes in xml\n"
		<< context();
		}

		auto schemaCtxt = make_xmlUnique(xmlSchemaNewValidCtxt(schema.get()));
		int ret = xmlSchemaValidateDoc(schemaCtxt.get(), doc.get());
		if (ret > 0) {
		return ::testing::AssertionFailure()
		<< "xml is not valid according to the xsd.\n"
		<< context();
		}
		if (ret < 0) {
		return ::testing::AssertionFailure() << "Internal or API error\n"
		<< context();
		}

		return ::testing::AssertionSuccess();
		}

		} // namespace test
		} // namespace audio
		} // namespace hardware
		} // namespace android

audio/2.0/vts/functional/utility/ValidateXml.h

0 → 100644

+47 −0

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		/*
		* Copyright (C) 2017 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.
		*/

		#ifndef ANDROID_HARDWARE_AUDIO_TEST_VALIDATEXML
		#define ANDROID_HARDWARE_AUDIO_TEST_VALIDATEXML

		#include <gtest/gtest.h>

		namespace android {
		namespace hardware {
		namespace audio {
		namespace test {

		/** Validate the provided XmlFile with the provided xsdFile.
		* Intended to use with ASSERT_PRED_FORMAT2 as such:
		* ASSERT_PRED_FORMAT2(validateXml, pathToXml, pathToXsd);
		* See ASSERT_VALID_XML for a helper macro.
		*/
		::testing::AssertionResult validateXml(const char* xmlFilePathExpr,
		const char* xsdFilePathExpr,
		const char* xmlFilePath,
		const char* xsdPathName);

		/** Helper gtest ASSERT to test xml validity against an xsd. */
		#define ASSERT_VALID_XML(xmlFilePath, xsdFilePath) \
		ASSERT_PRED_FORMAT2(::android::hardware::audio::test::validateXml, \
		xmlFilePath, xsdFilePath)

		} // namespace test
		} // namespace audio
		} // namespace hardware
		} // namespace android

		#endif // ANDROID_HARDWARE_AUDIO_TEST_VALIDATEXML