mirror of
https://github.com/mhx/dwarfs.git
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247 lines
7.5 KiB
C++
247 lines
7.5 KiB
C++
/* vim:set ts=2 sw=2 sts=2 et: */
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/**
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* \author Marcus Holland-Moritz (github@mhxnet.de)
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* \copyright Copyright (c) Marcus Holland-Moritz
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*
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* This file is part of dwarfs.
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*
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* dwarfs is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* dwarfs is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with dwarfs. If not, see <https://www.gnu.org/licenses/>.
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*/
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#pragma once
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#include <filesystem>
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#include <functional>
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#include <map>
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#include <memory>
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#include <optional>
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#include <random>
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#include <set>
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#include <span>
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#include <string>
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#include <string_view>
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#include <variant>
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#include <vector>
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#include "dwarfs/file_access.h"
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#include "dwarfs/file_stat.h"
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#include "dwarfs/iolayer.h"
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#include "dwarfs/os_access.h"
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#include "dwarfs/script.h"
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#include "dwarfs/terminal.h"
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namespace dwarfs::test {
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struct simplestat {
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file_stat::ino_type ino;
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file_stat::mode_type mode;
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file_stat::nlink_type nlink;
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file_stat::uid_type uid;
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file_stat::gid_type gid;
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file_stat::off_type size;
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file_stat::dev_type rdev;
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file_stat::time_type atime;
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file_stat::time_type mtime;
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file_stat::time_type ctime;
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posix_file_type::value type() const {
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return static_cast<posix_file_type::value>(mode & posix_file_type::mask);
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}
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};
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class os_access_mock : public os_access {
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private:
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struct mock_directory;
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struct mock_dirent;
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public:
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using value_variant_type =
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std::variant<std::monostate, std::string, std::function<std::string()>,
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std::unique_ptr<mock_directory>>;
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os_access_mock();
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~os_access_mock();
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static std::shared_ptr<os_access_mock> create_test_instance();
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size_t size() const;
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void add(std::filesystem::path const& path, simplestat const& st);
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void add(std::filesystem::path const& path, simplestat const& st,
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std::string const& contents);
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void add(std::filesystem::path const& path, simplestat const& st,
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std::function<std::string()> generator);
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void add_dir(std::filesystem::path const& path);
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void
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add_file(std::filesystem::path const& path, size_t size, bool random = false);
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void add_file(std::filesystem::path const& path, std::string const& contents);
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void add_local_files(std::filesystem::path const& path);
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void set_access_fail(std::filesystem::path const& path);
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void setenv(std::string name, std::string value);
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std::unique_ptr<dir_reader>
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opendir(std::filesystem::path const& path) const override;
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file_stat symlink_info(std::filesystem::path const& path) const override;
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std::filesystem::path
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read_symlink(std::filesystem::path const& path) const override;
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std::unique_ptr<mmif>
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map_file(std::filesystem::path const& path) const override;
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std::unique_ptr<mmif>
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map_file(std::filesystem::path const& path, size_t size) const override;
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int access(std::filesystem::path const&, int) const override;
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std::filesystem::path
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canonical(std::filesystem::path const& path) const override;
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std::filesystem::path current_path() const override;
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std::optional<std::string> getenv(std::string_view name) const override;
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private:
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static std::vector<std::string> splitpath(std::filesystem::path const& path);
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struct mock_dirent* find(std::filesystem::path const& path) const;
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struct mock_dirent* find(std::vector<std::string> parts) const;
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void add_internal(std::filesystem::path const& path, simplestat const& st,
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value_variant_type var);
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std::unique_ptr<mock_dirent> root_;
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size_t ino_{1000000};
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std::set<std::filesystem::path> access_fail_set_;
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std::map<std::string, std::string> env_;
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};
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class script_mock : public script {
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public:
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bool has_configure() const override { return true; }
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bool has_filter() const override { return true; }
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bool has_transform() const override { return true; }
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bool has_order() const override { return true; }
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void configure(options_interface const& /*oi*/) override {}
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bool filter(entry_interface const& /*ei*/) override { return true; }
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void transform(entry_interface& /*ei*/) override {
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// do nothing
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}
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void order(inode_vector& /*iv*/) override {
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// do nothing
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}
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};
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class test_terminal : public terminal {
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public:
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test_terminal(std::ostream& out, std::ostream& err);
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void set_fancy(bool fancy) { fancy_ = fancy; }
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void set_width(size_t width) { width_ = width; }
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size_t width() const override;
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bool is_fancy(std::ostream& os) const override;
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std::string_view color(termcolor color, termstyle style) const override;
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std::string colored(std::string text, termcolor color, bool enable,
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termstyle style) const override;
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private:
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std::ostream* out_;
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std::ostream* err_;
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bool fancy_{false};
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size_t width_{80};
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};
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class test_file_access : public file_access {
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public:
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bool exists(std::filesystem::path const& path) const override;
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std::unique_ptr<input_stream> open_input(std::filesystem::path const& path,
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std::error_code& ec) const override;
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std::unique_ptr<input_stream>
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open_input(std::filesystem::path const& path) const override;
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std::unique_ptr<input_stream>
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open_input_binary(std::filesystem::path const& path,
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std::error_code& ec) const override;
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std::unique_ptr<input_stream>
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open_input_binary(std::filesystem::path const& path) const override;
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std::unique_ptr<output_stream>
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open_output(std::filesystem::path const& path,
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std::error_code& ec) const override;
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std::unique_ptr<output_stream>
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open_output(std::filesystem::path const& path) const override;
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std::unique_ptr<output_stream>
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open_output_binary(std::filesystem::path const& path,
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std::error_code& ec) const override;
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std::unique_ptr<output_stream>
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open_output_binary(std::filesystem::path const& path) const override;
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void set_file(std::filesystem::path const& path, std::string contents) const;
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std::optional<std::string> get_file(std::filesystem::path const& path) const;
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private:
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std::map<std::filesystem::path, std::string> mutable files_;
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};
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class test_iolayer {
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public:
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test_iolayer();
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test_iolayer(std::shared_ptr<os_access const> os);
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test_iolayer(std::shared_ptr<os_access const> os,
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std::shared_ptr<file_access const> fa);
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~test_iolayer();
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iolayer const& get();
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std::string out() const;
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std::string err() const;
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void set_in(std::string in);
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void set_terminal_fancy(bool fancy);
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void set_terminal_width(size_t width);
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void set_os_access(std::shared_ptr<os_access_mock> os);
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void set_file_access(std::shared_ptr<file_access const> fa);
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private:
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std::shared_ptr<os_access const> os_;
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std::shared_ptr<test_terminal> term_;
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std::shared_ptr<file_access const> fa_;
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std::istringstream in_;
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std::ostringstream out_;
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std::ostringstream err_;
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std::unique_ptr<iolayer> iol_;
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};
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extern std::map<std::string, simplestat> statmap;
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std::optional<std::filesystem::path> find_binary(std::string_view name);
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std::span<std::pair<simplestat, std::string_view> const> test_dirtree();
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std::vector<std::string> parse_args(std::string_view args);
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std::string create_random_string(size_t size, std::mt19937_64& gen);
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std::string create_random_string(size_t size, size_t seed = 0);
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} // namespace dwarfs::test
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