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// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#include <vespa/vespalib/io/fileutil.h>
#include <vespa/vespalib/testkit/test_kit.h>
#include <filesystem>
#include <iostream>
#include <vector>
#include <regex>
#include <system_error>
#include <vespa/vespalib/util/exceptions.h>
#include <vespa/vespalib/util/size_literals.h>
namespace vespalib {
namespace {
bool fileExists(const vespalib::string& name) {
return std::filesystem::exists(std::filesystem::path(name));
}
}
vespalib::string normalizeOpenError(const vespalib::string str)
{
std::regex modeex(" mode=[0-7]+");
std::regex uidex(" uid=[0-9]+");
std::regex gidex(" gid=[0-9]+");
std::regex sizeex(" size=[0-9]+");
std::regex mtimeex(" mtime=[0-9]+");
std::regex errnoex(" errno=[0-9]+\\(\"[^\"]+\"\\)");
std::regex errorex("^error=[0-9]+\\(\"[^\"]+\"\\)");
std::string tmp1 = std::regex_replace(std::string(str), modeex, " mode=x");
std::string tmp2 = std::regex_replace(tmp1, uidex, " uid=x");
tmp1 = std::regex_replace(tmp2, gidex, " gid=x");
tmp2 = std::regex_replace(tmp1, sizeex, " size=x");
tmp1 = std::regex_replace(tmp2, mtimeex, " mtime=x");
tmp2 = std::regex_replace(tmp1, errnoex, " errno=x");
tmp1 = std::regex_replace(tmp2, errorex, "error=x");
return tmp1;
}
TEST("require that vespalib::File::open works")
{
// Opening non-existing file for reading should fail.
try{
std::filesystem::remove(std::filesystem::path("myfile")); // Just in case
File f("myfile");
f.open(File::READONLY);
TEST_FATAL("Opening non-existing file for reading should fail.");
} catch (IoException& e) {
//std::cerr << e.what() << "\n";
EXPECT_EQUAL(IoException::NOT_FOUND, e.getType());
}
// Opening non-existing file for writing without CREATE flag fails
try{
File f("myfile");
f.open(0);
TEST_FATAL("Opening non-existing file without CREATE flag should fail.");
} catch (IoException& e) {
//std::cerr << e.what() << "\n";
EXPECT_EQUAL(IoException::NOT_FOUND, e.getType());
}
// Opening file in non-existing subdir should fail.
try{
std::filesystem::remove_all(std::filesystem::path("mydir")); // Just in case
File f("mydir/myfile");
f.open(File::CREATE);
TEST_FATAL("Opening non-existing file for reading should fail.");
} catch (IoException& e) {
//std::cerr << e.what() << "\n";
EXPECT_EQUAL(IoException::NOT_FOUND, e.getType());
}
// Opening file for reading in non-existing subdir should not create
// subdir.
try{
File f("mydir/myfile");
f.open(File::READONLY, true);
TEST_FATAL("Read only parameter doesn't work with auto-generate");
} catch (IllegalArgumentException& e) {
}
// Opening file in non-existing subdir without auto-generating
// directories should not work.
try{
File f("mydir/myfile");
f.open(File::CREATE, false);
TEST_FATAL("Need to autogenerate directories for this to work");
} catch (IoException& e) {
//std::cerr << e.what() << "\n";
EXPECT_EQUAL(IoException::NOT_FOUND, e.getType());
ASSERT_TRUE(!fileExists("mydir"));
}
// Opening file in non-existing subdir works with auto-generate
{
File f("mydir/myfile");
f.open(File::CREATE, true);
ASSERT_TRUE(fileExists("mydir/myfile"));
f.unlink();
}
// Opening file in existing subdir works with auto-generate
{
File f("mydir/myfile");
f.open(File::CREATE, false);
ASSERT_TRUE(fileExists("mydir/myfile"));
f.unlink();
}
// Opening plain file works
{
File f("myfile");
f.open(File::CREATE, false);
ASSERT_TRUE(fileExists("myfile"));
}
// Opening directory does not work.
try{
File f("mydir");
f.open(File::CREATE, false);
TEST_FATAL("Can't open directory for reading");
} catch (IoException& e) {
//std::cerr << e.what() << "\n";
EXPECT_EQUAL(IoException::ILLEGAL_PATH, e.getType());
}
// Test reopening file in same object
{
File f("myfile");
f.open(File::CREATE, false);
f.write("a", 1, 0);
f.close();
f.open(File::CREATE, false);
std::vector<char> vec(10);
size_t read = f.read(&vec[0], 10, 0);
EXPECT_EQUAL(1u, read);
EXPECT_EQUAL('a', vec[0]);
f.write("b", 1, 0);
}
}
TEST("require that vespalib::File::isOpen works")
{
File f("myfile");
ASSERT_TRUE(!f.isOpen());
f.open(File::CREATE, false);
ASSERT_TRUE(f.isOpen());
f.close();
ASSERT_TRUE(!f.isOpen());
}
TEST("require that vespalib::File::resize works")
{
std::filesystem::remove(std::filesystem::path("myfile"));
File f("myfile");
f.open(File::CREATE, false);
f.write("foobar", 6, 0);
EXPECT_EQUAL(6, f.getFileSize());
f.resize(10);
EXPECT_EQUAL(10, f.getFileSize());
std::vector<char> vec(20, ' ');
size_t read = f.read(&vec[0], 20, 0);
EXPECT_EQUAL(10u, read);
EXPECT_EQUAL(std::string("foobar"), std::string(&vec[0], 6));
f.resize(3);
EXPECT_EQUAL(3, f.getFileSize());
read = f.read(&vec[0], 20, 0);
EXPECT_EQUAL(3u, read);
EXPECT_EQUAL(std::string("foo"), std::string(&vec[0], 3));
}
TEST("require that we can read all data written to file")
{
// Write text into a file.
std::filesystem::remove(std::filesystem::path("myfile"));
File fileForWriting("myfile");
fileForWriting.open(File::CREATE);
vespalib::string text = "This is some text. ";
fileForWriting.write(text.data(), text.size(), 0);
fileForWriting.close();
// Read contents of file, and verify it's identical.
File file("myfile");
file.open(File::READONLY);
vespalib::string content = file.readAll();
file.close();
ASSERT_EQUAL(content, text);
// Write lots of text into file.
off_t offset = 0;
fileForWriting.open(File::TRUNC);
while (offset < 10000) {
offset += fileForWriting.write(text.data(), text.size(), offset);
}
fileForWriting.close();
// Read it all and verify.
file.open(File::READONLY);
content = file.readAll();
file.close();
ASSERT_EQUAL(offset, static_cast<off_t>(content.size()));
vespalib::string chunk;
for (offset = 0; offset < 10000; offset += text.size()) {
chunk.assign(content.begin() + offset, text.size());
ASSERT_EQUAL(text, chunk);
}
}
TEST("require that vespalib::dirname works")
{
ASSERT_EQUAL("mydir", dirname("mydir/foo"));
ASSERT_EQUAL(".", dirname("notFound"));
ASSERT_EQUAL("/", dirname("/notFound"));
ASSERT_EQUAL("here/there", dirname("here/there/everywhere"));
}
TEST("require that vespalib::getOpenErrorString works")
{
stringref dirName = "mydir";
std::filesystem::remove_all(std::filesystem::path(dirName));
std::filesystem::create_directory(std::filesystem::path(dirName));
{
File foo("mydir/foo");
foo.open(File::CREATE);
foo.close();
}
vespalib::string err1 = getOpenErrorString(1, "mydir/foo");
vespalib::string normErr1 = normalizeOpenError(err1);
vespalib::string expErr1 = "error=x fileStat[name=mydir/foo mode=x uid=x gid=x size=x mtime=x] dirStat[name=mydir mode=x uid=x gid=x size=x mtime=x]";
std::cerr << "getOpenErrorString(1, \"mydir/foo\") is " << err1 <<
", normalized to " << normErr1 << std::endl;
EXPECT_EQUAL(expErr1, normErr1);
vespalib::string err2 = getOpenErrorString(1, "notFound");
vespalib::string normErr2 = normalizeOpenError(err2);
vespalib::string expErr2 = "error=x fileStat[name=notFound errno=x] dirStat[name=. mode=x uid=x gid=x size=x mtime=x]";
std::cerr << "getOpenErrorString(1, \"notFound\") is " << err2 <<
", normalized to " << normErr2 << std::endl;
EXPECT_EQUAL(expErr2, normErr2);
std::filesystem::remove_all(std::filesystem::path(dirName));
}
} // vespalib
TEST_MAIN() { TEST_RUN_ALL(); }
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