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// Copyright 2016 Yahoo Inc. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#include <vespa/fastos/fastos.h>
#include <vespa/log/log.h>
LOG_SETUP("data_directory_upgrader_test");
#include <vespa/vespalib/testkit/testapp.h>
#include <vespa/searchcore/proton/server/data_directory_upgrader.h>
#include <vespa/vespalib/io/fileutil.h>
#include <vespa/vespalib/stllike/asciistream.h>
#include <iostream>
using namespace proton;
using namespace vespalib;
typedef DataDirectoryUpgrader::RowColDir RowColDir;
typedef DataDirectoryUpgrader::ScanResult ScanResult;
typedef DataDirectoryUpgrader::UpgradeResult UpgradeResult;
const string SCAN_DIR = "mytest";
const string DEST_DIR = SCAN_DIR + "/n1";
void
assertDirs(const DirectoryList &exp, const DirectoryList &act)
{
ASSERT_EQUAL(exp.size(), act.size());
for (size_t i = 0; i < exp.size(); ++i) {
EXPECT_EQUAL(exp[i], act[i]);
}
}
void
assertDirs(const DirectoryList &rowColDirs, bool destDirExisting, const ScanResult &act)
{
ASSERT_EQUAL(rowColDirs.size(), act.getRowColDirs().size());
for (size_t i = 0; i < rowColDirs.size(); ++i) {
EXPECT_EQUAL(rowColDirs[i], act.getRowColDirs()[i].dir());
}
EXPECT_EQUAL(destDirExisting, act.isDestDirExisting());
}
void
assertDataFile(const vespalib::string &dir)
{
FileInfo::UP file = stat(dir + "/data.txt");
ASSERT_TRUE(file.get() != NULL);
EXPECT_TRUE(file->_plainfile);
}
vespalib::string
readFile(const vespalib::string &fileName)
{
File file(fileName);
file.open(File::READONLY);
FileInfo info = file.stat();
char buf[512];
size_t bytesRead = file.read(&buf, info._size, 0);
return vespalib::string(buf, bytesRead);
}
void
assertUpgradeFile(const vespalib::string &exp, const vespalib::string &dir)
{
EXPECT_EQUAL(exp, readFile(dir + "/data-directory-upgrade-source.txt"));
}
void
assertDowngradeScript(const vespalib::string &exp, const vespalib::string &dir)
{
EXPECT_EQUAL(exp, readFile(dir + "/data-directory-downgrade.sh"));
}
struct BaseFixture
{
DataDirectoryUpgrader _upg;
BaseFixture(const DirectoryList &dirs, bool createDestDir = false) : _upg(SCAN_DIR, DEST_DIR) {
mkdir(SCAN_DIR);
if (createDestDir) {
mkdir(DEST_DIR);
}
for (const string &dir : dirs) {
mkdir(SCAN_DIR + "/" + dir);
File f(SCAN_DIR + "/" + dir + "/data.txt");
f.open(File::CREATE);
f.close();
}
}
virtual ~BaseFixture() {
rmdir(SCAN_DIR, true);
}
DirectoryList getDirs(const vespalib::string &subDir = "") const {
DirectoryList l = listDirectory(SCAN_DIR + "/" + subDir);
std::sort(l.begin(), l.end());
return l;
}
};
struct EmptyFixture : public BaseFixture
{
EmptyFixture() : BaseFixture({}) {}
};
struct SingleFixture : public BaseFixture
{
SingleFixture() : BaseFixture({"r0/c0"}) {}
};
struct DoubleFixture : public BaseFixture
{
DoubleFixture() : BaseFixture({"r0/c0", "r1/c1"}) {}
};
struct UnrelatedFixture : public BaseFixture
{
UnrelatedFixture() : BaseFixture({"r0/cY", "rX/c1", "r0"}) {}
};
struct ExistingDestinationFixture : public BaseFixture
{
ExistingDestinationFixture() : BaseFixture({"r0/c0"}, true) {}
};
TEST_F("require that single row/column directory is discovered", SingleFixture)
{
ScanResult res = f._upg.scan();
assertDirs({"r0/c0"}, false, res);
}
TEST_F("require that multiple row/column directories are discovered", DoubleFixture)
{
ScanResult res = f._upg.scan();
assertDirs({"r0/c0", "r1/c1"}, false, res);
}
TEST_F("require that unrelated directories are not discovered", UnrelatedFixture)
{
ScanResult res = f._upg.scan();
assertDirs({}, false, res);
}
TEST_F("require that existing destination directory is discovered", ExistingDestinationFixture)
{
ScanResult res = f._upg.scan();
assertDirs({"r0/c0"}, true, res);
}
TEST("require that no-existing scan directory is handled")
{
DataDirectoryUpgrader upg(SCAN_DIR, DEST_DIR);
ScanResult res = upg.scan();
assertDirs({}, false, res);
}
TEST_F("require that empty directory is left untouched", EmptyFixture)
{
UpgradeResult res = f._upg.upgrade(f._upg.scan());
EXPECT_EQUAL(DataDirectoryUpgrader::IGNORE, res.getStatus());
EXPECT_EQUAL("No directory to upgrade", res.getDesc());
DirectoryList dirs = f.getDirs();
assertDirs({}, dirs);
}
TEST_F("require that existing destination directory is left untouched", ExistingDestinationFixture)
{
UpgradeResult res = f._upg.upgrade(f._upg.scan());
EXPECT_EQUAL(DataDirectoryUpgrader::IGNORE, res.getStatus());
EXPECT_EQUAL("Destination directory 'mytest/n1' is already existing", res.getDesc());
DirectoryList dirs = f.getDirs();
assertDirs({"n1", "r0"}, dirs);
}
TEST_F("require that single directory is upgraded", SingleFixture)
{
UpgradeResult res = f._upg.upgrade(f._upg.scan());
EXPECT_EQUAL(DataDirectoryUpgrader::COMPLETE, res.getStatus());
EXPECT_EQUAL("Moved data from 'mytest/r0/c0' to 'mytest/n1'", res.getDesc());
DirectoryList dirs = f.getDirs();
std::sort(dirs.begin(), dirs.end());
assertDirs({"n1"}, dirs);
assertDataFile(DEST_DIR);
assertUpgradeFile("mytest/r0/c0", DEST_DIR);
assertDowngradeScript("#!/bin/sh\n\n"
"mkdir mytest/r0 || exit 1\n"
"chown yahoo mytest/r0\n"
"mv mytest/n1 mytest/r0/c0\n"
"rm mytest/r0/c0/data-directory-upgrade-source.txt\n"
"rm mytest/r0/c0/data-directory-downgrade.sh\n", DEST_DIR);
}
TEST_F("require that multiple directories are left untouched", DoubleFixture)
{
UpgradeResult res = f._upg.upgrade(f._upg.scan());
EXPECT_EQUAL(DataDirectoryUpgrader::ERROR, res.getStatus());
EXPECT_EQUAL("Can only upgrade a single directory, was asked to upgrade 2 ('r0/c0', 'r1/c1')", res.getDesc());
DirectoryList dirs = f.getDirs();
std::sort(dirs.begin(), dirs.end());
assertDirs({"r0", "r1"}, dirs);
assertDataFile(SCAN_DIR + "/r0/c0");
}
TEST_MAIN() { TEST_RUN_ALL(); }
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