// Copyright 2011 Google Inc.
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// modification, are permitted provided that the following conditions are
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//
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//   notice, this list of conditions and the following disclaimer.
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extern "C" {
#include <unistd.h>
}

#include <atf-c++.hpp>

#include "engine/config.hpp"
#include "engine/kyuafile.hpp"
#include "utils/config/tree.ipp"
#include "utils/fs/operations.hpp"
#include "utils/fs/path.hpp"
#include "utils/optional.ipp"
#include "utils/passwd.hpp"

namespace config = utils::config;
namespace fs = utils::fs;
namespace passwd = utils::passwd;

using utils::none;


namespace {


/// Gets the path to an example file.
///
/// \param tc The caller test case.  Needed to obtain its 'examplesdir'
///     property, if any.
/// \param name The name of the example file.
///
/// \return A path to the desired example file.  This can either be inside the
/// source tree before installing Kyua or in the target installation directory
/// after installation.
static fs::path
example_file(const atf::tests::tc* tc, const char* name)
{
   const fs::path examplesdir =
       tc->has_config_var("examplesdir") ?
       fs::path(tc->get_config_var("examplesdir")) :
       fs::path(KYUA_EXAMPLESDIR);
   return examplesdir / name;
}


}  // anonymous namespace


ATF_TEST_CASE(kyua_conf);
ATF_TEST_CASE_HEAD(kyua_conf)
{
   set_md_var("require.files", example_file(this, "kyua.conf").str());
}
ATF_TEST_CASE_BODY(kyua_conf)
{
   std::vector< passwd::user > users;
   users.push_back(passwd::user("nobody", 1, 2));
   passwd::set_mock_users_for_testing(users);

   const config::tree user_config = engine::load_config(
       example_file(this, "kyua.conf"));

   ATF_REQUIRE_EQ(
       "x86_64",
       user_config.lookup< config::string_node >("architecture"));
   ATF_REQUIRE_EQ(
       "amd64",
       user_config.lookup< config::string_node >("platform"));

   ATF_REQUIRE_EQ(
       "nobody",
       user_config.lookup< engine::user_node >("unprivileged_user").name);

   config::properties_map exp_test_suites;
   exp_test_suites["test_suites.FreeBSD.iterations"] = "1000";
   exp_test_suites["test_suites.FreeBSD.run_old_tests"] = "false";
   exp_test_suites["test_suites.NetBSD.file_systems"] = "ffs lfs ext2fs";
   exp_test_suites["test_suites.NetBSD.iterations"] = "100";
   exp_test_suites["test_suites.NetBSD.run_broken_tests"] = "true";
   ATF_REQUIRE(exp_test_suites == user_config.all_properties("test_suites"));
}


ATF_TEST_CASE(kyuafile_top__no_matches);
ATF_TEST_CASE_HEAD(kyuafile_top__no_matches)
{
   set_md_var("require.files", example_file(this, "Kyuafile.top").str());
}
ATF_TEST_CASE_BODY(kyuafile_top__no_matches)
{
   fs::mkdir(fs::path("root"), 0755);
   const fs::path source_path = example_file(this, "Kyuafile.top");
   ATF_REQUIRE(::symlink(source_path.c_str(), "root/Kyuafile") != -1);

   atf::utils::create_file("root/file", "");
   fs::mkdir(fs::path("root/subdir"), 0755);

   const engine::kyuafile kyuafile = engine::kyuafile::load(
       fs::path("root/Kyuafile"), none);
   ATF_REQUIRE_EQ(fs::path("root"), kyuafile.source_root());
   ATF_REQUIRE_EQ(fs::path("root"), kyuafile.build_root());
   ATF_REQUIRE(kyuafile.test_programs().empty());
}


ATF_TEST_CASE(kyuafile_top__some_matches);
ATF_TEST_CASE_HEAD(kyuafile_top__some_matches)
{
   set_md_var("require.files", example_file(this, "Kyuafile.top").str());
}
ATF_TEST_CASE_BODY(kyuafile_top__some_matches)
{
   fs::mkdir(fs::path("root"), 0755);
   const fs::path source_path = example_file(this, "Kyuafile.top");
   ATF_REQUIRE(::symlink(source_path.c_str(), "root/Kyuafile") != -1);

   atf::utils::create_file("root/file", "");

   fs::mkdir(fs::path("root/subdir1"), 0755);
   atf::utils::create_file("root/subdir1/Kyuafile",
                           "syntax(2)\n"
                           "atf_test_program{name='a', test_suite='b'}\n");
   atf::utils::create_file("root/subdir1/a", "");

   fs::mkdir(fs::path("root/subdir2"), 0755);
   atf::utils::create_file("root/subdir2/Kyuafile",
                           "syntax(2)\n"
                           "atf_test_program{name='c', test_suite='d'}\n");
   atf::utils::create_file("root/subdir2/c", "");
   atf::utils::create_file("root/subdir2/Kyuafile.etc", "invalid");

   const engine::kyuafile kyuafile = engine::kyuafile::load(
       fs::path("root/Kyuafile"), none);
   ATF_REQUIRE_EQ(fs::path("root"), kyuafile.source_root());
   ATF_REQUIRE_EQ(fs::path("root"), kyuafile.build_root());

   engine::test_program exp_test_program_a(
       "atf", fs::path("subdir1/a"), fs::path("root"), "b",
       engine::metadata_builder().build());
   engine::test_program exp_test_program_c(
       "atf", fs::path("subdir2/c"), fs::path("root"), "d",
       engine::metadata_builder().build());

   ATF_REQUIRE_EQ(2, kyuafile.test_programs().size());
   ATF_REQUIRE((exp_test_program_a == *kyuafile.test_programs()[0] &&
                exp_test_program_c == *kyuafile.test_programs()[1])
               ||
               (exp_test_program_a == *kyuafile.test_programs()[1] &&
                exp_test_program_c == *kyuafile.test_programs()[0]));
}


ATF_INIT_TEST_CASES(tcs)
{
   ATF_ADD_TEST_CASE(tcs, kyua_conf);

   ATF_ADD_TEST_CASE(tcs, kyuafile_top__no_matches);
   ATF_ADD_TEST_CASE(tcs, kyuafile_top__some_matches);
}

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