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parser/test/parse_yaml_test.cpp
2017-04-26 21:25:50 -05:00

115 lines
3.7 KiB
C++

/**
* Copyright (C) 2010, 2011, 2012 Object Modeling Designs
* consultomd.com
* Copyright (C) 2017 Zach Laine
*
* Distributed under the Boost Software License, Version 1.0. (See accompanying
* file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
*/
#include <yaml/parser/stream.hpp>
#include <gtest/gtest.h>
#include <iostream>
#include <fstream>
char const * filename = nullptr;
std::ifstream * in_ptr = nullptr;
TEST(parse, test_parse_yaml)
{
ASSERT_TRUE(in_ptr != nullptr) << "failed to set up input file stream " << filename;
std::ifstream & in = *in_ptr;
using omd::yaml::ast::value_t;
using omd::yaml::parser::parse_yaml;
using omd::yaml::ast::print_yaml;
std::vector<value_t> result;
ASSERT_TRUE((parse_yaml(in, result, filename))) << "failed initial parse of " << filename;
ASSERT_EQ(result.size(), 1u);
print_yaml(std::cout, result[0]);
std::cout << std::endl;
{
std::stringstream expanded_once;
omd::yaml::ast::print_yaml<3, true>(expanded_once, result[0]);
std::vector<value_t> reparsed_once_result;
bool const expanded_once_parse =
parse_yaml(expanded_once, reparsed_once_result, filename + std::string("_expanded_once_string"));
EXPECT_TRUE(expanded_once_parse) << "reparse of expanded_once string failed!";
if (expanded_once_parse) {
EXPECT_EQ(reparsed_once_result.size(), 1u);
std::stringstream expanded_twice;
omd::yaml::ast::print_yaml<3, true>(expanded_twice, reparsed_once_result[0]);
std::vector<value_t> reparsed_twice_result;
bool const expanded_twice_parse =
parse_yaml(expanded_twice, reparsed_twice_result, filename + std::string("_expanded_twice_string"));
EXPECT_TRUE(expanded_twice_parse) << "reparse of expanded_twice string failed!";
if (expanded_twice_parse) {
EXPECT_EQ(reparsed_twice_result.size(), 1u);
EXPECT_EQ(reparsed_twice_result, reparsed_once_result) << "in parse -> print and expand -> parse -> print and expand -> parse, the final parse differs from middle parse!";
}
}
}
{
std::stringstream unexpanded;
omd::yaml::ast::print_yaml(unexpanded, result[0]);
std::vector<value_t> reparsed_result;
bool const unexpanded_parse =
parse_yaml(unexpanded, reparsed_result, filename + std::string("_unexpanded_string"));
EXPECT_TRUE(unexpanded_parse) << "reparse of unexpanded string failed!";
if (unexpanded_parse) {
EXPECT_EQ(reparsed_result.size(), 1u);
EXPECT_EQ(reparsed_result, result) << "result of parse -> print and don't expand -> parse differs from initial parse!";
}
}
}
int main (int argc, char** argv)
{
if (argc < 2)
{
std::cerr << "Error: No input file provided." << std::endl;
return 1;
}
// Last arg must be the name of the file to parse.
filename = argv[argc - 1];
std::ifstream in(filename, std::ios_base::in);
in_ptr = &in;
if (!in)
{
std::cerr << "Error: Could not open input file: "
<< filename << std::endl;
return 1;
}
// Ignore the BOM marking the beginning of a UTF-8 file in Windows
char c = in.peek();
if (c == '\xef')
{
char s[4];
in >> s[0] >> s[1] >> s[2];
s[3] = '\0';
if (s != std::string("\xef\xbb\xbf"))
{
std::cerr << "Error: Unexpected characters from input file: "
<< filename << std::endl;
return 1;
}
}
int argc_ = argc - 1; // Don't give filename arg to GTest.
::testing::InitGoogleTest(&argc_, argv);
return RUN_ALL_TESTS();
}