minetest/src/unittest/test_filesys.cpp

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/*
Minetest
Copyright (C) 2013 celeron55, Perttu Ahola <celeron55@gmail.com>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "test.h"
#include <sstream>
#include "log.h"
#include "serialization.h"
#include "nodedef.h"
#include "noise.h"
class TestFileSys : public TestBase
{
public:
TestFileSys() { TestManager::registerTestModule(this); }
const char *getName() { return "TestFileSys"; }
void runTests(IGameDef *gamedef);
void testIsDirDelimiter();
void testPathStartsWith();
void testRemoveLastPathComponent();
void testRemoveLastPathComponentWithTrailingDelimiter();
void testRemoveRelativePathComponent();
void testSafeWriteToFile();
};
static TestFileSys g_test_instance;
void TestFileSys::runTests(IGameDef *gamedef)
{
TEST(testIsDirDelimiter);
TEST(testPathStartsWith);
TEST(testRemoveLastPathComponent);
TEST(testRemoveLastPathComponentWithTrailingDelimiter);
TEST(testRemoveRelativePathComponent);
TEST(testSafeWriteToFile);
}
////////////////////////////////////////////////////////////////////////////////
// adjusts a POSIX path to system-specific conventions
// -> changes '/' to DIR_DELIM
// -> absolute paths start with "C:\\" on windows
std::string p(std::string path)
{
for (size_t i = 0; i < path.size(); ++i) {
if (path[i] == '/') {
path.replace(i, 1, DIR_DELIM);
i += std::string(DIR_DELIM).size() - 1; // generally a no-op
}
}
#ifdef _WIN32
if (path[0] == '\\')
path = "C:" + path;
#endif
return path;
}
void TestFileSys::testIsDirDelimiter()
{
UASSERT(fs::IsDirDelimiter('/') == true);
UASSERT(fs::IsDirDelimiter('A') == false);
UASSERT(fs::IsDirDelimiter(0) == false);
#ifdef _WIN32
UASSERT(fs::IsDirDelimiter('\\') == true);
#else
UASSERT(fs::IsDirDelimiter('\\') == false);
#endif
}
void TestFileSys::testPathStartsWith()
{
const int numpaths = 12;
std::string paths[numpaths] = {
"",
p("/"),
p("/home/user/minetest"),
p("/home/user/minetest/bin"),
p("/home/user/.minetest"),
p("/tmp/dir/file"),
p("/tmp/file/"),
p("/tmP/file"),
p("/tmp"),
p("/tmp/dir"),
p("/home/user2/minetest/worlds"),
p("/home/user2/minetest/world"),
};
/*
expected fs::PathStartsWith results
0 = returns false
1 = returns true
2 = returns false on windows, true elsewhere
3 = returns true on windows, false elsewhere
4 = returns true if and only if
FILESYS_CASE_INSENSITIVE is true
*/
int expected_results[numpaths][numpaths] = {
{1,2,0,0,0,0,0,0,0,0,0,0},
{1,1,0,0,0,0,0,0,0,0,0,0},
{1,1,1,0,0,0,0,0,0,0,0,0},
{1,1,1,1,0,0,0,0,0,0,0,0},
{1,1,0,0,1,0,0,0,0,0,0,0},
{1,1,0,0,0,1,0,0,1,1,0,0},
{1,1,0,0,0,0,1,4,1,0,0,0},
{1,1,0,0,0,0,4,1,4,0,0,0},
{1,1,0,0,0,0,0,0,1,0,0,0},
{1,1,0,0,0,0,0,0,1,1,0,0},
{1,1,0,0,0,0,0,0,0,0,1,0},
{1,1,0,0,0,0,0,0,0,0,0,1},
};
for (int i = 0; i < numpaths; i++)
for (int j = 0; j < numpaths; j++){
/*verbosestream<<"testing fs::PathStartsWith(\""
<<paths[i]<<"\", \""
<<paths[j]<<"\")"<<std::endl;*/
bool starts = fs::PathStartsWith(paths[i], paths[j]);
int expected = expected_results[i][j];
if(expected == 0){
UASSERT(starts == false);
}
else if(expected == 1){
UASSERT(starts == true);
}
#ifdef _WIN32
else if(expected == 2){
UASSERT(starts == false);
}
else if(expected == 3){
UASSERT(starts == true);
}
#else
else if(expected == 2){
UASSERT(starts == true);
}
else if(expected == 3){
UASSERT(starts == false);
}
#endif
else if(expected == 4){
UASSERT(starts == (bool)FILESYS_CASE_INSENSITIVE);
}
}
}
void TestFileSys::testRemoveLastPathComponent()
{
std::string path, result, removed;
UASSERT(fs::RemoveLastPathComponent("") == "");
path = p("/home/user/minetest/bin/..//worlds/world1");
result = fs::RemoveLastPathComponent(path, &removed, 0);
UASSERT(result == path);
UASSERT(removed == "");
result = fs::RemoveLastPathComponent(path, &removed, 1);
UASSERT(result == p("/home/user/minetest/bin/..//worlds"));
UASSERT(removed == p("world1"));
result = fs::RemoveLastPathComponent(path, &removed, 2);
UASSERT(result == p("/home/user/minetest/bin/.."));
UASSERT(removed == p("worlds/world1"));
result = fs::RemoveLastPathComponent(path, &removed, 3);
UASSERT(result == p("/home/user/minetest/bin"));
UASSERT(removed == p("../worlds/world1"));
result = fs::RemoveLastPathComponent(path, &removed, 4);
UASSERT(result == p("/home/user/minetest"));
UASSERT(removed == p("bin/../worlds/world1"));
result = fs::RemoveLastPathComponent(path, &removed, 5);
UASSERT(result == p("/home/user"));
UASSERT(removed == p("minetest/bin/../worlds/world1"));
result = fs::RemoveLastPathComponent(path, &removed, 6);
UASSERT(result == p("/home"));
UASSERT(removed == p("user/minetest/bin/../worlds/world1"));
result = fs::RemoveLastPathComponent(path, &removed, 7);
#ifdef _WIN32
UASSERT(result == "C:");
#else
UASSERT(result == "");
#endif
UASSERT(removed == p("home/user/minetest/bin/../worlds/world1"));
}
void TestFileSys::testRemoveLastPathComponentWithTrailingDelimiter()
{
std::string path, result, removed;
path = p("/home/user/minetest/bin/..//worlds/world1/");
result = fs::RemoveLastPathComponent(path, &removed, 0);
UASSERT(result == path);
UASSERT(removed == "");
result = fs::RemoveLastPathComponent(path, &removed, 1);
UASSERT(result == p("/home/user/minetest/bin/..//worlds"));
UASSERT(removed == p("world1"));
result = fs::RemoveLastPathComponent(path, &removed, 2);
UASSERT(result == p("/home/user/minetest/bin/.."));
UASSERT(removed == p("worlds/world1"));
result = fs::RemoveLastPathComponent(path, &removed, 3);
UASSERT(result == p("/home/user/minetest/bin"));
UASSERT(removed == p("../worlds/world1"));
result = fs::RemoveLastPathComponent(path, &removed, 4);
UASSERT(result == p("/home/user/minetest"));
UASSERT(removed == p("bin/../worlds/world1"));
result = fs::RemoveLastPathComponent(path, &removed, 5);
UASSERT(result == p("/home/user"));
UASSERT(removed == p("minetest/bin/../worlds/world1"));
result = fs::RemoveLastPathComponent(path, &removed, 6);
UASSERT(result == p("/home"));
UASSERT(removed == p("user/minetest/bin/../worlds/world1"));
result = fs::RemoveLastPathComponent(path, &removed, 7);
#ifdef _WIN32
UASSERT(result == "C:");
#else
UASSERT(result == "");
#endif
UASSERT(removed == p("home/user/minetest/bin/../worlds/world1"));
}
void TestFileSys::testRemoveRelativePathComponent()
{
std::string path, result;
path = p("/home/user/minetest/bin");
result = fs::RemoveRelativePathComponents(path);
UASSERT(result == path);
path = p("/home/user/minetest/bin/../worlds/world1");
result = fs::RemoveRelativePathComponents(path);
UASSERT(result == p("/home/user/minetest/worlds/world1"));
path = p("/home/user/minetest/bin/../worlds/world1/");
result = fs::RemoveRelativePathComponents(path);
UASSERT(result == p("/home/user/minetest/worlds/world1"));
path = p(".");
result = fs::RemoveRelativePathComponents(path);
UASSERT(result == "");
path = p("../a");
result = fs::RemoveRelativePathComponents(path);
UASSERT(result == "");
path = p("./subdir/../..");
result = fs::RemoveRelativePathComponents(path);
UASSERT(result == "");
path = p("/a/b/c/.././../d/../e/f/g/../h/i/j/../../../..");
result = fs::RemoveRelativePathComponents(path);
UASSERT(result == p("/a/e"));
}
void TestFileSys::testSafeWriteToFile()
{
const std::string dest_path = getTestTempFile();
const std::string test_data("hello\0world", 11);
fs::safeWriteToFile(dest_path, test_data);
UASSERT(fs::PathExists(dest_path));
std::string contents_actual;
UASSERT(fs::ReadFile(dest_path, contents_actual));
UASSERT(contents_actual == test_data);
}