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[DAPHNE-#867] Change ConfigParser::fileExists() behavior to not throw #867

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6 changes: 4 additions & 2 deletions src/parser/config/ConfigParser.cpp
Original file line number Diff line number Diff line change
Expand Up @@ -31,8 +31,10 @@ int readLogLevel(const std::string &level) {
bool ConfigParser::fileExists(const std::string &filename) {
// Open the given config file.
std::ifstream ifs(filename, std::ios::in);
if (!ifs.good())
throw std::runtime_error("could not open file '" + filename + "' for reading user config");
if (!ifs.good()) {
spdlog::warn("could not open file {} for reading user config", filename);
return false;
}
return true;
}

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25 changes: 19 additions & 6 deletions test/parser/config/ConfigParserTest.cpp
Original file line number Diff line number Diff line change
Expand Up @@ -14,78 +14,90 @@
* limitations under the License.
*/

#include <tags.h>

#include <catch.hpp>
#include "run_tests.h"

#include <parser/config/ConfigParser.h>

#include <iostream>

const std::string dirPath = "test/parser/config/configFiles/";

TEST_CASE("Proper config file from daphne root directory") {
auto dctx = setupContextAndLogger();
const std::string configFile = "UserConfig.json";
DaphneUserConfig userConfig{};
REQUIRE(ConfigParser::fileExists(configFile));
REQUIRE_NOTHROW(ConfigParser::readUserConfig(configFile, userConfig));
}

TEST_CASE("Missing config file", TAG_PARSER) {
auto dctx = setupContextAndLogger();
const std::string configFile = "-";
REQUIRE_THROWS(ConfigParser::fileExists(configFile));

auto throwLambda = [configFile]() {
if (!ConfigParser::fileExists(configFile))
throw std::runtime_error("could not open file '" + configFile + "' for reading user config");
};

REQUIRE_THROWS(throwLambda());
}

TEST_CASE("Empty config file", TAG_PARSER) {
auto dctx = setupContextAndLogger();
const std::string configFile = dirPath + "UserConfig1.json";
DaphneUserConfig userConfig{};
REQUIRE(ConfigParser::fileExists(configFile));
REQUIRE_NOTHROW(ConfigParser::readUserConfig(configFile, userConfig));
}

TEST_CASE("Wrong JSON format in the config file", TAG_PARSER) {
auto dctx = setupContextAndLogger();
const std::string configFile = dirPath + "UserConfig2.json";
DaphneUserConfig userConfig{};
REQUIRE(ConfigParser::fileExists(configFile));
REQUIRE_THROWS(ConfigParser::readUserConfig(configFile, userConfig));
}

TEST_CASE("Wrong format of config file", TAG_PARSER) {
auto dctx = setupContextAndLogger();
const std::string configFile = dirPath + "UserConfig3.txt";
DaphneUserConfig userConfig{};
REQUIRE(ConfigParser::fileExists(configFile));
REQUIRE_THROWS(ConfigParser::readUserConfig(configFile, userConfig));
}

TEST_CASE("Config file that contains only some keys", TAG_PARSER) {
auto dctx = setupContextAndLogger();
const std::string configFile = dirPath + "UserConfig4.json";
DaphneUserConfig userConfig{};
REQUIRE(ConfigParser::fileExists(configFile));
REQUIRE_NOTHROW(ConfigParser::readUserConfig(configFile, userConfig));
}

TEST_CASE("Unknown key in the config file", TAG_PARSER) {
auto dctx = setupContextAndLogger();
const std::string configFile = dirPath + "UserConfig5.json";
DaphneUserConfig userConfig{};
REQUIRE(ConfigParser::fileExists(configFile));
REQUIRE_THROWS(ConfigParser::readUserConfig(configFile, userConfig));
}

TEST_CASE("The unknown value of param in the config file", TAG_PARSER) {
auto dctx = setupContextAndLogger();
const std::string configFile = dirPath + "UserConfig6.json";
DaphneUserConfig userConfig{};
REQUIRE(ConfigParser::fileExists(configFile));
REQUIRE_THROWS(ConfigParser::readUserConfig(configFile, userConfig));
}

TEST_CASE("An adequate enum value set in the config file", TAG_PARSER) {
auto dctx = setupContextAndLogger();
const std::string configFile = dirPath + "UserConfig7.json";
DaphneUserConfig userConfig{};
REQUIRE(ConfigParser::fileExists(configFile));
REQUIRE_NOTHROW(ConfigParser::readUserConfig(configFile, userConfig));
}

TEST_CASE("An unknown enum value set in the config file", TAG_PARSER) {
auto dctx = setupContextAndLogger();
const std::string configFile = dirPath + "UserConfig8.json";
DaphneUserConfig userConfig{};
REQUIRE(ConfigParser::fileExists(configFile));
Expand All @@ -95,6 +107,7 @@ TEST_CASE("An unknown enum value set in the config file", TAG_PARSER) {
TEST_CASE("Integer set as enum value instead of the name of the enum value in "
"string format in the config file",
TAG_PARSER) {
auto dctx = setupContextAndLogger();
const std::string configFile = dirPath + "UserConfig9.json";
DaphneUserConfig userConfig{};
REQUIRE(ConfigParser::fileExists(configFile));
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