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-rw-r--r--test/yaml-parser.cpp620
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diff --git a/test/yaml-parser.cpp b/test/yaml-parser.cpp
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+++ b/test/yaml-parser.cpp
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+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Copyright (C) 2022, Google Inc.
+ *
+ * YAML parser operations tests
+ */
+
+#include <array>
+#include <iostream>
+#include <map>
+#include <string>
+#include <unistd.h>
+
+#include <libcamera/base/file.h>
+#include <libcamera/base/utils.h>
+
+#include "libcamera/internal/yaml_parser.h"
+
+#include "test.h"
+
+using namespace libcamera;
+using namespace std;
+
+static const string testYaml =
+ "string: libcamera\n"
+ "double: 3.14159\n"
+ "int8_t: -100\n"
+ "uint8_t: 100\n"
+ "int16_t: -1000\n"
+ "uint16_t: 1000\n"
+ "int32_t: -100000\n"
+ "uint32_t: 100000\n"
+ "size: [1920, 1080]\n"
+ "list:\n"
+ " - James\n"
+ " - Mary\n"
+ " - \n"
+ "dictionary:\n"
+ " a: 1\n"
+ " c: 3\n"
+ " b: 2\n"
+ " empty:\n"
+ "level1:\n"
+ " level2:\n"
+ " - [1, 2]\n"
+ " - {one: 1, two: 2}\n";
+
+static const string invalidYaml =
+ "Invalid : - YAML : - Content";
+
+class YamlParserTest : public Test
+{
+protected:
+ bool createFile(const string &content, string &filename)
+ {
+ filename = "/tmp/libcamera.test.XXXXXX";
+ int fd = mkstemp(&filename.front());
+ if (fd == -1)
+ return false;
+
+ int ret = write(fd, content.c_str(), content.size());
+ close(fd);
+
+ if (ret != static_cast<int>(content.size()))
+ return false;
+
+ return true;
+ }
+
+ int init()
+ {
+ if (!createFile(testYaml, testYamlFile_))
+ return TestFail;
+
+ if (!createFile(invalidYaml, invalidYamlFile_))
+ return TestFail;
+
+ return TestPass;
+ }
+
+ enum class Type {
+ String,
+ Int8,
+ UInt8,
+ Int16,
+ UInt16,
+ Int32,
+ UInt32,
+ Double,
+ Size,
+ List,
+ Dictionary,
+ };
+
+ int testObjectType(const YamlObject &obj, const char *name, Type type)
+ {
+ bool isList = type == Type::List || type == Type::Size;
+ bool isScalar = !isList && type != Type::Dictionary;
+ bool isInteger8 = type == Type::Int8 || type == Type::UInt8;
+ bool isInteger16 = type == Type::Int16 || type == Type::UInt16;
+ bool isInteger32 = type == Type::Int32 || type == Type::UInt32;
+ bool isIntegerUpTo16 = isInteger8 || isInteger16;
+ bool isIntegerUpTo32 = isIntegerUpTo16 || isInteger32;
+ bool isSigned = type == Type::Int8 || type == Type::Int16 ||
+ type == Type::Int32;
+
+ if ((isScalar && !obj.isValue()) || (!isScalar && obj.isValue())) {
+ std::cerr
+ << "Object " << name << " type mismatch when compared to "
+ << "value" << std::endl;
+ return TestFail;
+ }
+
+ if ((isList && !obj.isList()) || (!isList && obj.isList())) {
+ std::cerr
+ << "Object " << name << " type mismatch when compared to "
+ << "list" << std::endl;
+ return TestFail;
+ }
+
+ if ((type == Type::Dictionary && !obj.isDictionary()) ||
+ (type != Type::Dictionary && obj.isDictionary())) {
+ std::cerr
+ << "Object " << name << " type mismatch when compared to "
+ << "dictionary" << std::endl;
+ return TestFail;
+ }
+
+ if (!isScalar && obj.get<std::string>()) {
+ std::cerr
+ << "Object " << name << " didn't fail to parse as "
+ << "string" << std::endl;
+ return TestFail;
+ }
+
+ if (!isInteger8 && obj.get<int8_t>()) {
+ std::cerr
+ << "Object " << name << " didn't fail to parse as "
+ << "int8_t" << std::endl;
+ return TestFail;
+ }
+
+ if ((!isInteger8 || isSigned) && obj.get<uint8_t>()) {
+ std::cerr
+ << "Object " << name << " didn't fail to parse as "
+ << "uint8_t" << std::endl;
+ return TestFail;
+ }
+
+ if (!isIntegerUpTo16 && obj.get<int16_t>()) {
+ std::cerr
+ << "Object " << name << " didn't fail to parse as "
+ << "int16_t" << std::endl;
+ return TestFail;
+ }
+
+ if ((!isIntegerUpTo16 || isSigned) && obj.get<uint16_t>()) {
+ std::cerr
+ << "Object " << name << " didn't fail to parse as "
+ << "uint16_t" << std::endl;
+ return TestFail;
+ }
+
+ if (!isIntegerUpTo32 && obj.get<int32_t>()) {
+ std::cerr
+ << "Object " << name << " didn't fail to parse as "
+ << "int32_t" << std::endl;
+ return TestFail;
+ }
+
+ if ((!isIntegerUpTo32 || isSigned) && obj.get<uint32_t>()) {
+ std::cerr
+ << "Object " << name << " didn't fail to parse as "
+ << "uint32_t" << std::endl;
+ return TestFail;
+ }
+
+ if (!isIntegerUpTo32 && type != Type::Double && obj.get<double>()) {
+ std::cerr
+ << "Object " << name << " didn't fail to parse as "
+ << "double" << std::endl;
+ return TestFail;
+ }
+
+ if (type != Type::Size && obj.get<Size>()) {
+ std::cerr
+ << "Object " << name << " didn't fail to parse as "
+ << "Size" << std::endl;
+ return TestFail;
+ }
+
+ return TestPass;
+ }
+
+ int testIntegerObject(const YamlObject &obj, const char *name, Type type,
+ int64_t value)
+ {
+ uint64_t unsignedValue = static_cast<uint64_t>(value);
+ std::string strValue = std::to_string(value);
+ bool isInteger8 = type == Type::Int8 || type == Type::UInt8;
+ bool isInteger16 = type == Type::Int16 || type == Type::UInt16;
+ bool isSigned = type == Type::Int8 || type == Type::Int16 ||
+ type == Type::Int32;
+
+ /* All integers can be parsed as strings or double. */
+
+ if (obj.get<string>().value_or("") != strValue ||
+ obj.get<string>("") != strValue) {
+ std::cerr
+ << "Object " << name << " failed to parse as "
+ << "string" << std::endl;
+ return TestFail;
+ }
+
+ if (obj.get<double>().value_or(0.0) != value ||
+ obj.get<double>(0.0) != value) {
+ std::cerr
+ << "Object " << name << " failed to parse as "
+ << "double" << std::endl;
+ return TestFail;
+ }
+
+ if (isInteger8) {
+ if (obj.get<int8_t>().value_or(0) != value ||
+ obj.get<int8_t>(0) != value) {
+ std::cerr
+ << "Object " << name << " failed to parse as "
+ << "int8_t" << std::endl;
+ return TestFail;
+ }
+ }
+
+ if (isInteger8 && !isSigned) {
+ if (obj.get<uint8_t>().value_or(0) != unsignedValue ||
+ obj.get<uint8_t>(0) != unsignedValue) {
+ std::cerr
+ << "Object " << name << " failed to parse as "
+ << "uint8_t" << std::endl;
+ return TestFail;
+ }
+ }
+
+ if (isInteger8 || isInteger16) {
+ if (obj.get<int16_t>().value_or(0) != value ||
+ obj.get<int16_t>(0) != value) {
+ std::cerr
+ << "Object " << name << " failed to parse as "
+ << "int16_t" << std::endl;
+ return TestFail;
+ }
+ }
+
+ if ((isInteger8 || isInteger16) && !isSigned) {
+ if (obj.get<uint16_t>().value_or(0) != unsignedValue ||
+ obj.get<uint16_t>(0) != unsignedValue) {
+ std::cerr
+ << "Object " << name << " failed to parse as "
+ << "uint16_t" << std::endl;
+ return TestFail;
+ }
+ }
+
+ if (obj.get<int32_t>().value_or(0) != value ||
+ obj.get<int32_t>(0) != value) {
+ std::cerr
+ << "Object " << name << " failed to parse as "
+ << "int32_t" << std::endl;
+ return TestFail;
+ }
+
+ if (!isSigned) {
+ if (obj.get<uint32_t>().value_or(0) != unsignedValue ||
+ obj.get<uint32_t>(0) != unsignedValue) {
+ std::cerr
+ << "Object " << name << " failed to parse as "
+ << "uint32_t" << std::endl;
+ return TestFail;
+ }
+ }
+
+ return TestPass;
+ }
+
+ int run()
+ {
+ /* Test invalid YAML file */
+ File file{ invalidYamlFile_ };
+ if (!file.open(File::OpenModeFlag::ReadOnly)) {
+ cerr << "Fail to open invalid YAML file" << std::endl;
+ return TestFail;
+ }
+
+ std::unique_ptr<YamlObject> root = YamlParser::parse(file);
+ if (root) {
+ cerr << "Invalid YAML file parse successfully" << std::endl;
+ return TestFail;
+ }
+
+ /* Test YAML file */
+ file.close();
+ file.setFileName(testYamlFile_);
+ if (!file.open(File::OpenModeFlag::ReadOnly)) {
+ cerr << "Fail to open test YAML file" << std::endl;
+ return TestFail;
+ }
+
+ root = YamlParser::parse(file);
+
+ if (!root) {
+ cerr << "Fail to parse test YAML file: " << std::endl;
+ return TestFail;
+ }
+
+ if (!root->isDictionary()) {
+ cerr << "YAML root is not dictionary" << std::endl;
+ return TestFail;
+ }
+
+ std::vector<const char *> rootElemNames = {
+ "string", "double", "int8_t", "uint8_t", "int16_t",
+ "uint16_t", "int32_t", "uint32_t", "size", "list",
+ "dictionary", "level1",
+ };
+
+ for (const char *name : rootElemNames) {
+ if (!root->contains(name)) {
+ cerr << "Missing " << name << " object in YAML root"
+ << std::endl;
+ return TestFail;
+ }
+ }
+
+ /* Test string object */
+ auto &strObj = (*root)["string"];
+
+ if (testObjectType(strObj, "string", Type::String) != TestPass)
+ return TestFail;
+
+ if (strObj.get<string>().value_or("") != "libcamera" ||
+ strObj.get<string>("") != "libcamera") {
+ cerr << "String object parse as wrong content" << std::endl;
+ return TestFail;
+ }
+
+ /* Test int8_t object */
+ auto &int8Obj = (*root)["int8_t"];
+
+ if (testObjectType(int8Obj, "int8_t", Type::Int8) != TestPass)
+ return TestFail;
+
+ if (testIntegerObject(int8Obj, "int8_t", Type::Int8, -100) != TestPass)
+ return TestFail;
+
+ /* Test uint8_t object */
+ auto &uint8Obj = (*root)["uint8_t"];
+
+ if (testObjectType(uint8Obj, "uint8_t", Type::UInt8) != TestPass)
+ return TestFail;
+
+ if (testIntegerObject(uint8Obj, "uint8_t", Type::UInt8, 100) != TestPass)
+ return TestFail;
+
+ /* Test int16_t object */
+ auto &int16Obj = (*root)["int16_t"];
+
+ if (testObjectType(int16Obj, "int16_t", Type::Int16) != TestPass)
+ return TestFail;
+
+ if (testIntegerObject(int16Obj, "int16_t", Type::Int16, -1000) != TestPass)
+ return TestFail;
+
+ /* Test uint16_t object */
+ auto &uint16Obj = (*root)["uint16_t"];
+
+ if (testObjectType(uint16Obj, "uint16_t", Type::UInt16) != TestPass)
+ return TestFail;
+
+ if (testIntegerObject(uint16Obj, "uint16_t", Type::UInt16, 1000) != TestPass)
+ return TestFail;
+
+ /* Test int32_t object */
+ auto &int32Obj = (*root)["int32_t"];
+
+ if (testObjectType(int32Obj, "int32_t", Type::Int32) != TestPass)
+ return TestFail;
+
+ if (testIntegerObject(int32Obj, "int32_t", Type::Int32, -100000) != TestPass)
+ return TestFail;
+
+ /* Test uint32_t object */
+ auto &uint32Obj = (*root)["uint32_t"];
+
+ if (testObjectType(uint32Obj, "uint32_t", Type::UInt32) != TestPass)
+ return TestFail;
+
+ if (testIntegerObject(uint32Obj, "uint32_t", Type::UInt32, 100000) != TestPass)
+ return TestFail;
+
+ /* Test double value */
+ auto &doubleObj = (*root)["double"];
+
+ if (testObjectType(doubleObj, "double", Type::Double) != TestPass)
+ return TestFail;
+
+ if (doubleObj.get<string>().value_or("") != "3.14159" ||
+ doubleObj.get<string>("") != "3.14159") {
+ cerr << "Double object fail to parse as string" << std::endl;
+ return TestFail;
+ }
+
+ if (doubleObj.get<double>().value_or(0.0) != 3.14159 ||
+ doubleObj.get<double>(0.0) != 3.14159) {
+ cerr << "Double object parse as wrong value" << std::endl;
+ return TestFail;
+ }
+
+ /* Test Size value */
+ auto &sizeObj = (*root)["size"];
+
+ if (testObjectType(sizeObj, "size", Type::Size) != TestPass)
+ return TestFail;
+
+ if (sizeObj.get<Size>().value_or(Size(0, 0)) != Size(1920, 1080) ||
+ sizeObj.get<Size>(Size(0, 0)) != Size(1920, 1080)) {
+ cerr << "Size object parse as wrong value" << std::endl;
+ return TestFail;
+ }
+
+ /* Test list object */
+ auto &listObj = (*root)["list"];
+
+ if (testObjectType(listObj, "list", Type::List) != TestPass)
+ return TestFail;
+
+ static constexpr std::array<const char *, 3> listValues{
+ "James",
+ "Mary",
+ "",
+ };
+
+ if (listObj.size() != listValues.size()) {
+ cerr << "List object parse with wrong size" << std::endl;
+ return TestFail;
+ }
+
+ unsigned int i = 0;
+ for (auto &elem : listObj.asList()) {
+ if (i >= listValues.size()) {
+ std::cerr << "Too many elements in list during iteration"
+ << std::endl;
+ return TestFail;
+ }
+
+ std::string value = listValues[i];
+
+ if (&elem != &listObj[i]) {
+ std::cerr << "List element " << i << " has wrong address"
+ << std::endl;
+ return TestFail;
+ }
+
+ if (elem.get<std::string>("") != value) {
+ std::cerr << "List element " << i << " has wrong value"
+ << std::endl;
+ return TestFail;
+ }
+
+ i++;
+ }
+
+ /* Ensure that empty objects get parsed as empty strings. */
+ if (!listObj[2].isValue()) {
+ cerr << "Empty object is not a value" << std::endl;
+ return TestFail;
+ }
+
+ /* Test dictionary object */
+ auto &dictObj = (*root)["dictionary"];
+
+ if (testObjectType(dictObj, "dictionary", Type::Dictionary) != TestPass)
+ return TestFail;
+
+ static constexpr std::array<std::pair<const char *, int>, 4> dictValues{ {
+ { "a", 1 },
+ { "c", 3 },
+ { "b", 2 },
+ { "empty", -100 },
+ } };
+
+ size_t dictSize = dictValues.size();
+
+ if (dictObj.size() != dictSize) {
+ cerr << "Dictionary object has wrong size" << std::endl;
+ return TestFail;
+ }
+
+ i = 0;
+ for (const auto &[key, elem] : dictObj.asDict()) {
+ if (i >= dictSize) {
+ std::cerr << "Too many elements in dictionary during iteration"
+ << std::endl;
+ return TestFail;
+ }
+
+ const auto &item = dictValues[i];
+ if (item.first != key) {
+ std::cerr << "Dictionary key " << i << " has wrong value"
+ << std::endl;
+ return TestFail;
+ }
+
+ if (&elem != &dictObj[key]) {
+ std::cerr << "Dictionary element " << i << " has wrong address"
+ << std::endl;
+ return TestFail;
+ }
+
+ if (elem.get<int32_t>(-100) != item.second) {
+ std::cerr << "Dictionary element " << i << " has wrong value"
+ << std::endl;
+ return TestFail;
+ }
+
+ i++;
+ }
+
+ /* Ensure that empty objects get parsed as empty strings. */
+ if (!dictObj["empty"].isValue()) {
+ cerr << "Empty object is not of type value" << std::endl;
+ return TestFail;
+ }
+
+ /* Ensure that keys without values are added to a dict. */
+ if (!dictObj.contains("empty")) {
+ cerr << "Empty element is missing in dict" << std::endl;
+ return TestFail;
+ }
+
+ /* Test access to nonexistent member. */
+ if (dictObj["nonexistent"].get<std::string>("default") != "default") {
+ cerr << "Accessing nonexistent dict entry fails to return default" << std::endl;
+ return TestFail;
+ }
+
+ /* Test nonexistent object has value type empty. */
+ if (!dictObj["nonexistent"].isEmpty()) {
+ cerr << "Accessing nonexistent object returns non-empty object" << std::endl;
+ return TestFail;
+ }
+
+ /* Test explicit cast to bool on an empty object returns true. */
+ if (!!dictObj["empty"] != true) {
+ cerr << "Casting empty entry to bool returns false" << std::endl;
+ return TestFail;
+ }
+
+ /* Test explicit cast to bool on nonexistent object returns false. */
+ if (!!dictObj["nonexistent"] != false) {
+ cerr << "Casting nonexistent dict entry to bool returns true" << std::endl;
+ return TestFail;
+ }
+
+ /* Make sure utils::map_keys() works on the adapter. */
+ (void)utils::map_keys(dictObj.asDict());
+
+ /* Test leveled objects */
+ auto &level1Obj = (*root)["level1"];
+
+ if (!level1Obj.isDictionary()) {
+ cerr << "level1 object fail to parse as Dictionary" << std::endl;
+ return TestFail;
+ }
+
+ auto &level2Obj = level1Obj["level2"];
+
+ if (!level2Obj.isList() || level2Obj.size() != 2) {
+ cerr << "level2 object should be 2 element list" << std::endl;
+ return TestFail;
+ }
+
+ auto &firstElement = level2Obj[0];
+ if (!firstElement.isList() ||
+ firstElement.size() != 2 ||
+ firstElement[0].get<int32_t>(0) != 1 ||
+ firstElement[1].get<int32_t>(0) != 2) {
+ cerr << "The first element of level2 object fail to parse as integer list" << std::endl;
+ return TestFail;
+ }
+
+ const auto &values = firstElement.getList<uint16_t>();
+ if (!values || values->size() != 2 || (*values)[0] != 1 || (*values)[1] != 2) {
+ cerr << "getList() failed to return correct vector" << std::endl;
+ return TestFail;
+ }
+
+ auto &secondElement = level2Obj[1];
+ if (!secondElement.isDictionary() ||
+ !secondElement.contains("one") ||
+ !secondElement.contains("two") ||
+ secondElement["one"].get<int32_t>(0) != 1 ||
+ secondElement["two"].get<int32_t>(0) != 2) {
+ cerr << "The second element of level2 object fail to parse as dictionary" << std::endl;
+ return TestFail;
+ }
+
+ return TestPass;
+ }
+
+ void cleanup()
+ {
+ unlink(testYamlFile_.c_str());
+ unlink(invalidYamlFile_.c_str());
+ }
+
+private:
+ std::string testYamlFile_;
+ std::string invalidYamlFile_;
+};
+
+TEST_REGISTER(YamlParserTest)