118 lines
3.1 KiB
C++
118 lines
3.1 KiB
C++
#include "helpers/read_test_entries.h"
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#include <string>
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#include <fstream>
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#include <streambuf>
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#include <dirent.h>
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#ifdef USE_BOOST_REGEX
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#include "boost/regex.hpp"
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using boost::regex;
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using boost::regex_search;
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using boost::regex_replace;
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using boost::smatch;
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using boost::regex_constants::extended;
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#else
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#include <regex>
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using std::regex;
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using std::regex_search;
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using std::regex_replace;
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using std::smatch;
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using std::regex_constants::extended;
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#endif
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using std::string;
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using std::vector;
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using std::ifstream;
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using std::istreambuf_iterator;
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static string trim_output(const string &input) {
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string result(input);
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result = regex_replace(result, regex("[\n\t ]+", extended), string(" "));
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result = regex_replace(result, regex("^ ", extended), string(""));
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result = regex_replace(result, regex(" $", extended), string(""));
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result = regex_replace(result, regex("\\) \\)", extended), string("))"));
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return result;
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}
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static vector<TestEntry> parse_test_entries(string content) {
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regex header_pattern("===+\n" "([^=]+)\n" "===+\n", extended);
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regex separator_pattern("---+\n", extended);
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vector<string> descriptions;
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vector<string> bodies;
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for (;;) {
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smatch matches;
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if (!regex_search(content, matches, header_pattern) || matches.empty())
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break;
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string description = matches[1].str();
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descriptions.push_back(description);
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if (!bodies.empty())
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bodies.back().erase(matches.position());
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content.erase(0, matches.position() + matches[0].length());
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bodies.push_back(content);
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}
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vector<TestEntry> result;
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for (size_t i = 0; i < descriptions.size(); i++) {
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string body = bodies[i];
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smatch matches;
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if (regex_search(body, matches, separator_pattern)) {
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result.push_back({
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descriptions[i],
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body.substr(0, matches.position() - 1),
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trim_output(body.substr(matches.position() + matches[0].length()))
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});
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}
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}
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return result;
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}
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static vector<string> list_directory(string dir_name) {
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vector<string> result;
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DIR *dir = opendir(dir_name.c_str());
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if (!dir) {
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printf("\nTest error - no such directory '%s'", dir_name.c_str());
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return result;
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}
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struct dirent *dir_entry;
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while ((dir_entry = readdir(dir))) {
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string name(dir_entry->d_name);
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if (name != "." && name != "..")
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result.push_back(dir_name + "/" + name);
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}
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closedir(dir);
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return result;
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}
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static string read_file(string filename) {
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ifstream file(filename);
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string result((istreambuf_iterator<char>(file)), istreambuf_iterator<char>());
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return result;
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}
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vector<TestEntry> read_corpus_entries(string language_name) {
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vector<TestEntry> result;
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string fixtures_dir = "spec/fixtures/";
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string test_directory = fixtures_dir + "grammars/" + language_name + "/grammar_test";
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for (string &test_filename : list_directory(test_directory))
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for (TestEntry &entry : parse_test_entries(read_file(test_filename)))
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result.push_back(entry);
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string error_test_filename = fixtures_dir + "/error_corpus/" + language_name + "_errors.txt";
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for (TestEntry &entry : parse_test_entries(read_file(error_test_filename)))
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result.push_back(entry);
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return result;
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}
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