99 lines
2.8 KiB
C++
99 lines
2.8 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 <regex>
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#include <dirent.h>
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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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using std::regex;
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using std::regex_search;
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using std::regex_replace;
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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("^[\\s]+"), "");
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result = regex_replace(result, regex("[\\s]+$"), "");
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result = regex_replace(result, regex("\\)\\s+\\)"), "))");
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result = regex_replace(result, regex("\\s+"), " ");
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return result;
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}
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static vector<TestEntry> get_test_entries_from_string(string content) {
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regex header_pattern("===+\n" "([^=]+)\n" "===+\n");
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regex separator_pattern("---+");
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vector<string> descriptions;
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vector<string> bodies;
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for (;;) {
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std::smatch matches;
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regex_search(content, matches, header_pattern);
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if (matches.empty()) 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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std::smatch matches;
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regex_search(body, matches, separator_pattern);
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result.push_back({
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.description = descriptions[i],
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.input = body.substr(0, matches.position()),
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.tree_string = trim_output(body.substr(matches.position() + matches[0].length()))
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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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return result;
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}
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static string src_dir() {
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const char * dir = getenv("TREESITTER_DIR");
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if (!dir) dir = getenv("PWD");
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return dir;
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}
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vector<TestEntry> test_entries_for_language(string language) {
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vector<TestEntry> result;
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string language_dir = src_dir() + "/spec/runtime/languages/" + language;
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vector<string> filenames = list_directory(language_dir);
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for (string &filename : filenames) {
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ifstream file(filename);
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std::string content((istreambuf_iterator<char>(file)), istreambuf_iterator<char>());
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for (TestEntry entry : get_test_entries_from_string(content)) {
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result.push_back(entry);
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}
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}
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return result;
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}
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