Adding upstream version 2.4.1.upstream/2.4.1upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 678 insertions, 0 deletions

diff --git a/src/bin/lfc/tests/lfc_controller_unittests.cc b/src/bin/lfc/tests/lfc_controller_unittests.cc
new file mode 100644
index 0000000..026d3e9
--- /dev/null
+++ b/src/bin/lfc/tests/lfc_controller_unittests.cc
@@ -0,0 +1,678 @@
+// Copyright (C) 2015-2023 Internet Systems Consortium, Inc. ("ISC")
+//
+// This Source Code Form is subject to the terms of the Mozilla Public
+// License, v. 2.0. If a copy of the MPL was not distributed with this
+// file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+#include <config.h>
+
+#include <lfc/lfc_controller.h>
+#include <util/csv_file.h>
+#include <gtest/gtest.h>
+#include <fstream>
+#include <cerrno>
+
+using namespace isc::lfc;
+using namespace std;
+
+namespace {
+
+class LFCControllerTest : public ::testing::Test {
+public:
+    string pstr_; ///< String for name for pid file
+    string xstr_; ///< String for name for previous file
+    string istr_; ///< String for name for copy file
+    string ostr_; ///< String for name for output file
+    string fstr_; ///< String for name for finish file
+    string cstr_; ///< String for name for config file
+
+    string v4_hdr_; ///< String for the header of the v4 csv test file
+    string v6_hdr_; ///< String for the header of the v6 csv test file
+
+    /// @brief Create a file and write the given string into it.
+    void writeFile(const std::string& filename, const std::string& contents) const;
+
+    /// @brief Read a string from a file
+    std::string readFile(const std::string& filename) const;
+
+    /// @brief Test if a file doesn't exist
+    ///
+    /// @returns true if the file doesn't exist, false if it does
+    bool noExist(const std::string& filename) const {
+        return ((remove(filename.c_str()) != 0) && (errno == ENOENT));
+    }
+
+    /// @brief Test if any of the temporary (copy, output or finish)
+    /// files exist
+    ///
+    /// @returns true if no files exist, and false if any do.
+    bool noExistIOF() const {
+        return (noExist(istr_) && noExist(ostr_) && noExist(fstr_));
+    }
+
+    /// @brief Test if any of the temporary (copy, output or finish)
+    /// files and the pid file exist
+    ///
+    /// @returns true if no files exist, and false if any do.
+    bool noExistIOFP() const {
+        return ((noExist(istr_) && noExist(ostr_) &&
+                 noExist(fstr_) && noExist(pstr_)));
+    }
+
+    /// @brief Remove any files we may have created
+    void removeTestFile() const {
+        remove(pstr_.c_str());
+        remove(xstr_.c_str());
+        remove(istr_.c_str());
+        remove(ostr_.c_str());
+        remove(fstr_.c_str());
+    }
+
+protected:
+    /// @brief Sets up the file names and header string and removes
+    /// any old test files before the test
+    virtual void SetUp() {
+        // set up the test files we need
+        string base_dir = TEST_DATA_BUILDDIR;
+        string lf = "lease_file.";
+
+        pstr_ = base_dir + "/" + lf + "pid";        // pid
+        xstr_ = base_dir + "/" + lf + "2";          // previous
+        istr_ = base_dir + "/" + lf + "1";          // copy
+        ostr_ = base_dir + "/" + lf + "output";     // output
+        fstr_ = base_dir + "/" + lf + "completed";  // finish
+        cstr_ = base_dir + "/" + "config_file";     // config
+
+        v4_hdr_ = "address,hwaddr,client_id,valid_lifetime,expire,subnet_id,"
+                  "fqdn_fwd,fqdn_rev,hostname,state,user_context,pool_id\n";
+
+        v6_hdr_ = "address,duid,valid_lifetime,expire,subnet_id,"
+                  "pref_lifetime,lease_type,iaid,prefix_len,fqdn_fwd,"
+                  "fqdn_rev,hostname,hwaddr,state,user_context,"
+                  "hwtype,hwaddr_source,pool_id\n";
+
+        // and remove any outstanding test files
+        removeTestFile();
+    }
+
+    /// @brief Removes any remaining test files after the test
+    virtual void TearDown() {
+        removeTestFile();
+    }
+
+    /// @Wrapper to invoke the controller's launch method  Please refer to
+    /// lfcController::launch for details.  This is wrapped to provide
+    /// a single place to update the test_mode throughout the file.
+    void launch(LFCController lfc_controller, int argc, char* argv[]) {
+        lfc_controller.launch(argc, argv, true);
+    }
+
+private:
+};
+
+std::string
+LFCControllerTest::readFile(const std::string& filename) const {
+    std::ifstream fs;
+
+    fs.open(filename.c_str(), std::ifstream::in);
+    std::string contents((std::istreambuf_iterator<char>(fs)),
+                         std::istreambuf_iterator<char>());
+    fs.close();
+    return (contents);
+}
+
+void
+LFCControllerTest::writeFile(const std::string& filename,
+                             const std::string& contents) const {
+    std::ofstream fs(filename.c_str(), std::ofstream::out);
+
+    if (fs.is_open()) {
+        fs << contents;
+        fs.close();
+    }
+}
+
+/// @brief Verify initial state of LFC controller.
+/// Create an instance of the controller and see that
+/// all of the initial values are empty as expected.
+TEST_F(LFCControllerTest, initialValues) {
+    LFCController lfc_controller;
+
+    // Verify that we start with all the private variables empty
+    EXPECT_EQ(lfc_controller.getProtocolVersion(), 0);
+    EXPECT_TRUE(lfc_controller.getConfigFile().empty());
+    EXPECT_TRUE(lfc_controller.getPreviousFile().empty());
+    EXPECT_TRUE(lfc_controller.getCopyFile().empty());
+    EXPECT_TRUE(lfc_controller.getOutputFile().empty());
+    EXPECT_TRUE(lfc_controller.getFinishFile().empty());
+    EXPECT_TRUE(lfc_controller.getPidFile().empty());
+}
+
+/// @todo verify that parsing -v/V/W/h works well without ASSERT_EXIT
+
+/// @brief Verify that parsing a full command line works.
+/// Parse a complete command line then verify the parsed
+/// and saved data matches our expectations.
+TEST_F(LFCControllerTest, fullCommandLine) {
+    LFCController lfc_controller;
+
+    // Verify that standard options can be parsed without error
+    char* argv[] = { const_cast<char*>("progName"),
+                     const_cast<char*>("-4"),
+                     const_cast<char*>("-x"),
+                     const_cast<char*>("previous"),
+                     const_cast<char*>("-i"),
+                     const_cast<char*>("copy"),
+                     const_cast<char*>("-o"),
+                     const_cast<char*>("output"),
+                     const_cast<char*>("-c"),
+                     const_cast<char*>("config"),
+                     const_cast<char*>("-f"),
+                     const_cast<char*>("finish"),
+                     const_cast<char*>("-p"),
+                     const_cast<char*>("pid") };
+    int argc = 14;
+
+    ASSERT_NO_THROW(lfc_controller.parseArgs(argc, argv));
+
+    // Check all the parsed data from above to the known values
+    EXPECT_EQ(lfc_controller.getProtocolVersion(), 4);
+    EXPECT_EQ(lfc_controller.getConfigFile(), "config");
+    EXPECT_EQ(lfc_controller.getPreviousFile(), "previous");
+    EXPECT_EQ(lfc_controller.getCopyFile(), "copy");
+    EXPECT_EQ(lfc_controller.getOutputFile(), "output");
+    EXPECT_EQ(lfc_controller.getFinishFile(), "finish");
+    EXPECT_EQ(lfc_controller.getPidFile(), "pid");
+}
+
+/// @brief Verify that parsing a correct but incomplete line fails.
+/// Parse a command line that is correctly formatted but isn't complete
+/// (doesn't include some options or an some option arguments).  We
+/// expect that the parse will fail with an InvalidUsage exception.
+TEST_F(LFCControllerTest, notEnoughData) {
+    LFCController lfc_controller;
+
+    // Test the results if we don't include all of the required arguments
+    // This argument list is correct but we shall only suppy part of it
+    // to the parse routine via the argc variable.
+    char* argv[] = { const_cast<char*>("progName"),
+                     const_cast<char*>("-4"),
+                     const_cast<char*>("-x"),
+                     const_cast<char*>("previous"),
+                     const_cast<char*>("-i"),
+                     const_cast<char*>("copy"),
+                     const_cast<char*>("-o"),
+                     const_cast<char*>("output"),
+                     const_cast<char*>("-c"),
+                     const_cast<char*>("config"),
+                     const_cast<char*>("-f"),
+                     const_cast<char*>("finish"),
+                     const_cast<char*>("-p"),
+                     const_cast<char*>("pid") };
+
+    int argc = 1;
+
+    for (; argc < 14; ++argc) {
+        EXPECT_THROW(lfc_controller.parseArgs(argc, argv), InvalidUsage)
+            << "test failed for argc = " << argc;
+    }
+
+    // Verify we can still parse the full string properly
+    ASSERT_NO_THROW(lfc_controller.parseArgs(argc, argv));
+}
+
+/// @brief Verify that extra arguments cause the parse to fail.
+/// Parse a full command line plus some extra arguments on the end
+/// to verify that we don't stop parsing when we find all of the
+/// required arguments.  We expect the parse to fail with an
+/// InvalidUsage exception.
+TEST_F(LFCControllerTest, tooMuchData) {
+    LFCController lfc_controller;
+
+    // The standard options plus some others
+
+    char* argv[] = { const_cast<char*>("progName"),
+                     const_cast<char*>("-4"),
+                     const_cast<char*>("-x"),
+                     const_cast<char*>("previous"),
+                     const_cast<char*>("-i"),
+                     const_cast<char*>("copy"),
+                     const_cast<char*>("-o"),
+                     const_cast<char*>("output"),
+                     const_cast<char*>("-c"),
+                     const_cast<char*>("config"),
+                     const_cast<char*>("-f"),
+                     const_cast<char*>("finish"),
+                     const_cast<char*>("-p"),
+                     const_cast<char*>("pid"),
+                     const_cast<char*>("some"),
+                     const_cast<char*>("other"),
+                     const_cast<char*>("args"),
+    };
+    int argc = 17;
+
+    // We expect an error as we have arguments that aren't valid
+    EXPECT_THROW(lfc_controller.parseArgs(argc, argv), InvalidUsage);
+}
+
+/// @brief Verify that unknown arguments cause the parse to fail.
+/// Parse some unknown arguments to verify that we generate the
+/// proper InvalidUsage exception.
+TEST_F(LFCControllerTest, someBadData) {
+    LFCController lfc_controller;
+
+    // Some random arguments
+
+    char* argv[] = { const_cast<char*>("progName"),
+                     const_cast<char*>("some"),
+                     const_cast<char*>("bad"),
+                     const_cast<char*>("args"),
+    };
+    int argc = 4;
+
+    // We expect an error as the arguments aren't valid
+    EXPECT_THROW(lfc_controller.parseArgs(argc, argv), InvalidUsage);
+}
+
+/// @brief Verify that we do file rotation correctly.  We create different
+/// files and see if we properly delete and move them.
+TEST_F(LFCControllerTest, fileRotate) {
+    LFCController lfc_controller, lfc_controller_launch;
+
+    // We can use the same arguments and controller for all of the tests
+    // as the files get redone for each subtest.  We leave "-d" in the arg
+    // list but don't pass it as we use 14 as the argument count.  This
+    // makes it easy to turn it on by simply increasing argc below to 15
+    char* argv[] = { const_cast<char*>("progName"),
+                     const_cast<char*>("-4"),
+                     const_cast<char*>("-x"),
+                     const_cast<char*>(xstr_.c_str()),
+                     const_cast<char*>("-i"),
+                     const_cast<char*>(istr_.c_str()),
+                     const_cast<char*>("-o"),
+                     const_cast<char*>(ostr_.c_str()),
+                     const_cast<char*>("-c"),
+                     const_cast<char*>(cstr_.c_str()),
+                     const_cast<char*>("-f"),
+                     const_cast<char*>(fstr_.c_str()),
+                     const_cast<char*>("-p"),
+                     const_cast<char*>(pstr_.c_str()),
+                     const_cast<char*>("-d")
+    };
+    int argc = 14;
+    lfc_controller.parseArgs(argc, argv);
+
+    // Test 1: Start with no files - we expect an exception as there
+    // is no file to copy.
+    EXPECT_THROW(lfc_controller.fileRotate(), RunTimeFail);
+    removeTestFile();
+
+    // Test 2: Create a file for each of previous, copy and finish.  We should
+    // delete the previous and copy files then move finish to previous.
+    writeFile(xstr_, "1");
+    writeFile(istr_, "2");
+    writeFile(fstr_, "3");
+
+    lfc_controller.fileRotate();
+
+    // verify finish is now previous and no temp files remain.
+    EXPECT_EQ(readFile(xstr_), "3");
+    EXPECT_TRUE(noExistIOF());
+    removeTestFile();
+
+    // Test 3: Create a file for previous and finish but not copy.
+    writeFile(xstr_, "4");
+    writeFile(fstr_, "6");
+
+    lfc_controller.fileRotate();
+
+    // verify finish is now previous and no temp files remain.
+    EXPECT_EQ(readFile(xstr_), "6");
+    EXPECT_TRUE(noExistIOF());
+    removeTestFile();
+
+    // Test 4: Create a file for copy and finish but not previous.
+    writeFile(istr_, "8");
+    writeFile(fstr_, "9");
+
+    lfc_controller.fileRotate();
+
+    // verify finish is now previous and no temp files remain.
+    EXPECT_EQ(readFile(xstr_), "9");
+    EXPECT_TRUE(noExistIOF());
+    removeTestFile();
+
+    // Test 5: rerun test 2 but using launch instead of cleanup
+    // as we already have a finish file we shouldn't do any extra
+    // processing
+    writeFile(xstr_, "10");
+    writeFile(istr_, "11");
+    writeFile(fstr_, "12");
+
+    launch(lfc_controller_launch, argc, argv);
+
+    // verify finish is now previous and no temp files or pid remain.
+    EXPECT_EQ(readFile(xstr_), "12");
+    EXPECT_TRUE(noExistIOFP());
+    removeTestFile();
+}
+
+/// @brief Verify that we properly combine and clean up files
+///
+/// This is mostly a retest as we already test that the loader and
+/// writer functions work in their own tests but we combine it all
+/// here.  We check: both files available, only previous, only copy
+/// neither and one of them having many lease errors.  This is the
+/// v4 version.
+
+TEST_F(LFCControllerTest, launch4) {
+    LFCController lfc_controller;
+
+    // The arg list for our test.  We generally use the
+    // same file names to make it easy.  We include the -d
+    // in the argv list in case we want to enable verbose
+    // for debugging purposes.  To enable it change argc from
+    // 14 to 15
+    char* argv[] = { const_cast<char*>("progName"),
+                     const_cast<char*>("-4"),
+                     const_cast<char*>("-x"),
+                     const_cast<char*>(xstr_.c_str()),
+                     const_cast<char*>("-i"),
+                     const_cast<char*>(istr_.c_str()),
+                     const_cast<char*>("-o"),
+                     const_cast<char*>(ostr_.c_str()),
+                     const_cast<char*>("-c"),
+                     const_cast<char*>(cstr_.c_str()),
+                     const_cast<char*>("-f"),
+                     const_cast<char*>(fstr_.c_str()),
+                     const_cast<char*>("-p"),
+                     const_cast<char*>(pstr_.c_str()),
+                     const_cast<char*>("-d")
+    };
+    int argc = 14;
+    string test_str, astr;
+
+    // Create the various strings we want to use, the header is predefined.
+    // We have several entries for different leases, the naming is:
+    // <lease letter>_<version#>
+    string a_1 = "192.0.2.1,06:07:08:09:0a:bc,,"
+                 "200,200,8,1,1,host.example.com,1,,0\n";
+    string a_2 = "192.0.2.1,06:07:08:09:0a:bc,,"
+                 "200,500,8,1,1,host.example.com,1,,0\n";
+    string a_3 = "192.0.2.1,06:07:08:09:0a:bc,,"
+                 "200,800,8,1,1,host.example.com,1,{ \"foo\": true },0\n";
+
+    string b_1 = "192.0.3.15,dd:de:ba:0d:1b:2e:3e:4f,0a:00:01:04,"
+                 "100,100,7,0,0,,1,{ \"bar\": false },0\n";
+    string b_2 = "192.0.3.15,dd:de:ba:0d:1b:2e:3e:4f,0a:00:01:04,"
+                 "100,135,7,0,0,,1,,0\n";
+    string b_3 = "192.0.3.15,dd:de:ba:0d:1b:2e:3e:4f,0a:00:01:04,"
+                 "100,150,7,0,0,,1,,0\n";
+
+    // This one should be invalid, no hardware address or client id
+    // and state is not declined
+    string c_1 = "192.0.2.3,,,"
+                 "200,200,8,1,1,host.example.com,0,,0\n";
+
+    string d_1 = "192.0.2.5,16:17:18:19:1a:bc,,"
+                 "200,200,8,1,1,host.example.com,1,,0\n";
+    string d_2 = "192.0.2.5,16:17:18:19:1a:bc,,"
+                 "0,200,8,1,1,host.example.com,1,,0\n";
+
+    // Subtest 1: both previous and copy available.
+    // Create the test previous file
+    test_str = v4_hdr_ + a_1 + b_1 + c_1 + b_2 + a_2 + d_1;
+    writeFile(xstr_, test_str);
+
+    // Create the test copy file
+    test_str = v4_hdr_ + a_3 + b_3 + d_2;
+    writeFile(istr_, test_str);
+
+    // Run the cleanup
+    launch(lfc_controller, argc, argv);
+
+    // Compare the results, we expect the last lease for each ip
+    // except for C which was invalid and D which has expired.
+    // We also verify none of the temp or pid files remain.
+    test_str = v4_hdr_ + a_3 + b_3;
+    EXPECT_EQ(readFile(xstr_), test_str);
+    EXPECT_TRUE(noExistIOFP());
+    removeTestFile();
+
+    // Subtest 2: only previous available
+    // Create the test previous file
+    test_str = v4_hdr_ + a_1 + b_1 + c_1 + b_2 + a_2 + d_1;
+    writeFile(xstr_, test_str);
+
+    // No copy file
+
+    // Run the cleanup
+    launch(lfc_controller, argc, argv);
+
+    // Compare the results, we expect the last lease for each ip
+    // except for C which was invalid and D which has expired.
+    // We also verify none of the temp or pid files remain.
+    test_str = v4_hdr_ + a_2 + d_1 + b_2;
+    EXPECT_EQ(readFile(xstr_), test_str);
+    EXPECT_TRUE(noExistIOFP());
+    removeTestFile();
+
+    // Subtest 3: only copy available
+    // No previous file
+
+    // Create the test copy file
+    test_str = v4_hdr_ + d_1 + a_1 + b_1 + b_3 + d_2 + a_3;
+    writeFile(istr_, test_str);
+
+    // Run the cleanup
+    launch(lfc_controller, argc, argv);
+
+    // Compare the results, we expect the last lease for each ip
+    // except for C which was invalid and D which has expired.
+    // We also verify none of the temp or pid files remain.
+    test_str = v4_hdr_ + a_3 + b_3;
+    EXPECT_EQ(readFile(xstr_), test_str);
+    EXPECT_TRUE(noExistIOFP());
+    removeTestFile();
+
+    // Subtest 4: neither available
+    // No previous file
+
+    // No copy file
+
+    // Run the cleanup
+    launch(lfc_controller, argc, argv);
+
+    // Compare the results, we expect a header and no leases.
+    // We also verify none of the temp or pid files remain.
+    test_str = v4_hdr_;
+    EXPECT_EQ(readFile(xstr_), test_str);
+    EXPECT_TRUE(noExistIOFP());
+    removeTestFile();
+
+    // Subtest 5: a file with a lot of errors
+    // A previous file with a lot of errors
+    astr = "1,\n2,\n3,\n4,\n5,\n6,\n7,\n7,\n8,\n9,\n10,\n";
+    test_str = v4_hdr_ + astr + astr + astr + astr + astr +
+               astr + astr + astr + astr + astr + astr;
+    writeFile(xstr_, test_str);
+
+    // No copy file
+
+    // Run the cleanup, the file should fail but we should
+    // catch the error and properly cleanup.
+    launch(lfc_controller, argc, argv);
+
+    // And we shouldn't have deleted the previous file.
+    // We also verify none of the temp or pid files remain.
+    EXPECT_EQ(readFile(xstr_), test_str);
+    EXPECT_TRUE(noExistIOFP());
+}
+
+/// @brief Verify that we properly combine and clean up files
+///
+/// This is mostly a retest as we already test that the loader and
+/// writer functions work in their own tests but we combine it all
+/// here.  We check: both files available, only previous, only copy
+/// neither and one of them having many lease errors.  This is the
+/// v6 version.
+
+TEST_F(LFCControllerTest, launch6) {
+    LFCController lfc_controller;
+
+    // The arg list for our test.  We generally use the
+    // same file names to make it easy.  We include the -d
+    // in the argv list in case we want to enable verbose
+    // for debugging purposes.  To enable it change argc from
+    // 14 to 15
+    char* argv[] = { const_cast<char*>("progName"),
+                     const_cast<char*>("-6"),
+                     const_cast<char*>("-x"),
+                     const_cast<char*>(xstr_.c_str()),
+                     const_cast<char*>("-i"),
+                     const_cast<char*>(istr_.c_str()),
+                     const_cast<char*>("-o"),
+                     const_cast<char*>(ostr_.c_str()),
+                     const_cast<char*>("-c"),
+                     const_cast<char*>(cstr_.c_str()),
+                     const_cast<char*>("-f"),
+                     const_cast<char*>(fstr_.c_str()),
+                     const_cast<char*>("-p"),
+                     const_cast<char*>(pstr_.c_str()),
+                     const_cast<char*>("-d")
+    };
+    int argc = 14;
+    string test_str, astr;
+
+    // Create the various strings we want to use, the header is predefined.
+    // We have several entries for different leases, the naming is:
+    // <lease letter>_<version#>.
+    string a_1 = "2001:db8:1::1,00:01:02:03:04:05:06:0a:0b:0c:0d:0e:0f,"
+                 "200,200,8,100,0,7,0,1,1,host.example.com,,1,,,,0\n";
+    string a_2 = "2001:db8:1::1,,200,200,8,100,0,7,0,1,1,"
+                 "host.example.com,,1,,,,0\n";
+    string a_3 = "2001:db8:1::1,00:01:02:03:04:05:06:0a:0b:0c:0d:0e:0f,"
+                 "200,400,8,100,0,7,0,1,1,host.example.com,,1,,,,0\n";
+    string a_4 = "2001:db8:1::1,00:01:02:03:04:05:06:0a:0b:0c:0d:0e:0f,"
+                 "0,200,8,100,0,7,0,1,1,host.example.com,,1,"
+                 "{ \"foo\": true },,,0\n";
+
+    string b_1 = "2001:db8:2::10,01:01:01:01:0a:01:02:03:04:05,"
+                 "300,300,6,150,0,8,0,0,0,,,1,{ \"bar\": false },,,0\n";
+    string b_2 = "2001:db8:2::10,01:01:01:01:0a:01:02:03:04:05,"
+                 "300,800,6,150,0,8,0,0,0,,,1,,,,0\n";
+    string b_3 = "2001:db8:2::10,01:01:01:01:0a:01:02:03:04:05,"
+                 "300,1000,6,150,0,8,0,0,0,,,1,,,,0\n";
+
+    string c_1 = "3000:1::,00:01:02:03:04:05:06:0a:0b:0c:0d:0e:0f,"
+                 "100,200,8,0,2,16,64,0,0,,,1,,,,0\n";
+    string c_2 = "3000:1::,00:01:02:03:04:05:06:0a:0b:0c:0d:0e:0f,"
+                 "100,400,8,0,2,16,64,0,0,,,1,,,,0\n";
+
+    string d_1 = "2001:db8:1::3,00:01:02:03:04:05:06:0a:0b:0c:0d:0e:0f,"
+                 "200,600,8,100,0,7,0,1,1,host.example.com,,1,,,,0\n";
+
+    // new files have 128 prefixlen for non PD type
+    string a_3_n = "2001:db8:1::1,00:01:02:03:04:05:06:0a:0b:0c:0d:0e:0f,"
+                 "200,400,8,100,0,7,128,1,1,host.example.com,,1,,,,0\n";
+
+    string b_2_n = "2001:db8:2::10,01:01:01:01:0a:01:02:03:04:05,"
+                   "300,800,6,150,0,8,128,0,0,,,1,,,,0\n";
+
+    string b_3_n = "2001:db8:2::10,01:01:01:01:0a:01:02:03:04:05,"
+                   "300,1000,6,150,0,8,128,0,0,,,1,,,,0\n";
+
+    string d_1_n = "2001:db8:1::3,00:01:02:03:04:05:06:0a:0b:0c:0d:0e:0f,"
+                   "200,600,8,100,0,7,128,1,1,host.example.com,,1,,,,0\n";
+
+    // Subtest 1: both previous and copy available
+    // Create the test previous file
+    test_str = v6_hdr_ + a_1 + b_1 + a_2 + c_1 + a_3 + b_2;
+    writeFile(xstr_, test_str);
+
+    // Create the test copy file
+    test_str = v6_hdr_ + b_3 + a_4 + d_1 + c_2;
+    writeFile(istr_, test_str);
+
+    // Run the cleanup
+    launch(lfc_controller, argc, argv);
+
+    // Compare the results, we expect the last lease for each ip
+    // except for A which has expired.
+    // We also verify none of the temp or pid files remain.
+    test_str = v6_hdr_ + d_1_n + b_3_n + c_2;
+    EXPECT_EQ(readFile(xstr_), test_str);
+    EXPECT_TRUE(noExistIOFP());
+    removeTestFile();
+
+    // Subtest 2: only previous available
+    // Create the test previous file
+    test_str = v6_hdr_ + a_1 + b_1 + a_2 + c_1 + a_3 + b_2;
+    writeFile(xstr_, test_str);
+
+    // No copy file
+
+    // Run the cleanup
+    launch(lfc_controller, argc, argv);
+
+    // Compare the results, we expect the last lease for each ip.
+    // We also verify none of the temp or pid files remain.
+    test_str = v6_hdr_ + a_3_n + b_2_n + c_1;
+    EXPECT_EQ(readFile(xstr_), test_str);
+    EXPECT_TRUE(noExistIOFP());
+    removeTestFile();
+
+    // Subtest 3: only copy available
+    // No previous file
+
+    // Create the test copy file
+    test_str = v6_hdr_ + a_1 + b_2 + b_3 + a_4 + d_1 + c_2;
+    writeFile(istr_, test_str);
+
+    // Run the cleanup
+    launch(lfc_controller, argc, argv);
+
+    // Compare the results, we expect the last lease for each ip.
+    // We also verify none of the temp or pid files remain.
+    test_str = v6_hdr_ + d_1_n + b_3_n + c_2;
+    EXPECT_EQ(readFile(xstr_), test_str);
+    EXPECT_TRUE(noExistIOFP());
+    removeTestFile();
+
+    // Subtest 4: neither available
+    // No previous file
+
+    // No copy file
+
+    // Run the cleanup
+    launch(lfc_controller, argc, argv);
+
+    // Compare the results, we expect a header and no leases.
+    // We also verify none of the temp or pid files remain.
+    test_str = v6_hdr_;
+    EXPECT_EQ(readFile(xstr_), test_str);
+    EXPECT_TRUE(noExistIOFP());
+    removeTestFile();
+
+    // Subtest 5: a file with a lot of errors
+    // A previous file with a lot of errors.
+    astr = "1,\n2,\n3,\n4,\n5,\n6,\n7,\n7,\n8,\n9,\n10,\n";
+    test_str = v6_hdr_ + astr + astr + astr + astr + astr +
+               astr + astr + astr + astr + astr + astr;
+    writeFile(xstr_, test_str);
+
+    // No copy file
+
+    // Run the cleanup, the file should fail but we should
+    // catch the error and properly cleanup.
+    launch(lfc_controller, argc, argv);
+
+    // And we shouldn't have deleted the previous file.
+    // We also verify none of the temp or pid files remain.
+    EXPECT_EQ(readFile(xstr_), test_str);
+    EXPECT_TRUE(noExistIOFP());
+}
+
+// @todo double launch (how to do that)
+
+} // end of anonymous namespace