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-rw-r--r--engine/atf_helpers.cpp414
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diff --git a/engine/atf_helpers.cpp b/engine/atf_helpers.cpp
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+// Copyright 2010 The Kyua Authors.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+// * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+// * Redistributions in binary form must reproduce the above copyright
+// notice, this list of conditions and the following disclaimer in the
+// documentation and/or other materials provided with the distribution.
+// * Neither the name of Google Inc. nor the names of its contributors
+// may be used to endorse or promote products derived from this software
+// without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+extern "C" {
+#include <sys/stat.h>
+
+#include <signal.h>
+#include <unistd.h>
+}
+
+#include <algorithm>
+#include <cstdlib>
+#include <fstream>
+#include <iostream>
+#include <set>
+#include <sstream>
+#include <string>
+#include <vector>
+
+#include <atf-c++.hpp>
+
+#include "utils/env.hpp"
+#include "utils/fs/operations.hpp"
+#include "utils/fs/path.hpp"
+#include "utils/logging/operations.hpp"
+#include "utils/optional.ipp"
+#include "utils/test_utils.ipp"
+#include "utils/text/operations.ipp"
+
+namespace fs = utils::fs;
+namespace logging = utils::logging;
+namespace text = utils::text;
+
+using utils::optional;
+
+
+namespace {
+
+
+/// Creates an empty file in the given directory.
+///
+/// \param test_case The test case currently running.
+/// \param directory The name of the configuration variable that holds the path
+/// to the directory in which to create the cookie file.
+/// \param name The name of the cookie file to create.
+static void
+create_cookie(const atf::tests::tc* test_case, const char* directory,
+ const char* name)
+{
+ if (!test_case->has_config_var(directory))
+ test_case->fail(std::string(name) + " not provided");
+
+ const fs::path control_dir(test_case->get_config_var(directory));
+ std::ofstream file((control_dir / name).c_str());
+ if (!file)
+ test_case->fail("Failed to create the control cookie");
+ file.close();
+}
+
+
+} // anonymous namespace
+
+
+ATF_TEST_CASE_WITH_CLEANUP(check_cleanup_workdir);
+ATF_TEST_CASE_HEAD(check_cleanup_workdir)
+{
+ set_md_var("require.config", "control_dir");
+}
+ATF_TEST_CASE_BODY(check_cleanup_workdir)
+{
+ std::ofstream cookie("workdir_cookie");
+ cookie << "1234\n";
+ cookie.close();
+ skip("cookie created");
+}
+ATF_TEST_CASE_CLEANUP(check_cleanup_workdir)
+{
+ const fs::path control_dir(get_config_var("control_dir"));
+
+ std::ifstream cookie("workdir_cookie");
+ if (!cookie) {
+ std::ofstream((control_dir / "missing_cookie").c_str()).close();
+ std::exit(EXIT_FAILURE);
+ }
+
+ std::string value;
+ cookie >> value;
+ if (value != "1234") {
+ std::ofstream((control_dir / "invalid_cookie").c_str()).close();
+ std::exit(EXIT_FAILURE);
+ }
+
+ std::ofstream((control_dir / "cookie_ok").c_str()).close();
+ std::exit(EXIT_SUCCESS);
+}
+
+
+ATF_TEST_CASE_WITHOUT_HEAD(check_configuration_variables);
+ATF_TEST_CASE_BODY(check_configuration_variables)
+{
+ ATF_REQUIRE(has_config_var("first"));
+ ATF_REQUIRE_EQ("some value", get_config_var("first"));
+
+ ATF_REQUIRE(has_config_var("second"));
+ ATF_REQUIRE_EQ("some other value", get_config_var("second"));
+}
+
+
+ATF_TEST_CASE(check_list_config);
+ATF_TEST_CASE_HEAD(check_list_config)
+{
+ std::string description = "Found:";
+
+ if (has_config_var("var1"))
+ description += " var1=" + get_config_var("var1");
+ if (has_config_var("var2"))
+ description += " var2=" + get_config_var("var2");
+
+ set_md_var("descr", description);
+}
+ATF_TEST_CASE_BODY(check_list_config)
+{
+}
+
+
+ATF_TEST_CASE_WITHOUT_HEAD(check_unprivileged);
+ATF_TEST_CASE_BODY(check_unprivileged)
+{
+ if (::getuid() == 0)
+ fail("Running as root, but I shouldn't be");
+
+ std::ofstream file("cookie");
+ if (!file)
+ fail("Failed to create the cookie; work directory probably owned by "
+ "root");
+ file.close();
+}
+
+
+ATF_TEST_CASE_WITHOUT_HEAD(crash);
+ATF_TEST_CASE_BODY(crash)
+{
+ std::abort();
+}
+
+
+ATF_TEST_CASE(crash_head);
+ATF_TEST_CASE_HEAD(crash_head)
+{
+ utils::abort_without_coredump();
+}
+ATF_TEST_CASE_BODY(crash_head)
+{
+}
+
+
+ATF_TEST_CASE_WITH_CLEANUP(crash_cleanup);
+ATF_TEST_CASE_HEAD(crash_cleanup)
+{
+}
+ATF_TEST_CASE_BODY(crash_cleanup)
+{
+}
+ATF_TEST_CASE_CLEANUP(crash_cleanup)
+{
+ utils::abort_without_coredump();
+}
+
+
+ATF_TEST_CASE_WITHOUT_HEAD(create_cookie_in_control_dir);
+ATF_TEST_CASE_BODY(create_cookie_in_control_dir)
+{
+ create_cookie(this, "control_dir", "cookie");
+}
+
+
+ATF_TEST_CASE_WITHOUT_HEAD(create_cookie_in_workdir);
+ATF_TEST_CASE_BODY(create_cookie_in_workdir)
+{
+ std::ofstream file("cookie");
+ if (!file)
+ fail("Failed to create the cookie");
+ file.close();
+}
+
+
+ATF_TEST_CASE_WITH_CLEANUP(create_cookie_from_cleanup);
+ATF_TEST_CASE_HEAD(create_cookie_from_cleanup)
+{
+}
+ATF_TEST_CASE_BODY(create_cookie_from_cleanup)
+{
+}
+ATF_TEST_CASE_CLEANUP(create_cookie_from_cleanup)
+{
+ create_cookie(this, "control_dir", "cookie");
+}
+
+
+ATF_TEST_CASE_WITH_CLEANUP(expect_timeout);
+ATF_TEST_CASE_HEAD(expect_timeout)
+{
+ if (has_config_var("timeout"))
+ set_md_var("timeout", get_config_var("timeout"));
+}
+ATF_TEST_CASE_BODY(expect_timeout)
+{
+ expect_timeout("Times out on purpose");
+ ::sleep(10);
+ create_cookie(this, "control_dir", "cookie");
+}
+ATF_TEST_CASE_CLEANUP(expect_timeout)
+{
+ create_cookie(this, "control_dir", "cookie.cleanup");
+}
+
+
+ATF_TEST_CASE_WITH_CLEANUP(output);
+ATF_TEST_CASE_HEAD(output)
+{
+}
+ATF_TEST_CASE_BODY(output)
+{
+ std::cout << "Body message to stdout\n";
+ std::cerr << "Body message to stderr\n";
+}
+ATF_TEST_CASE_CLEANUP(output)
+{
+ std::cout << "Cleanup message to stdout\n";
+ std::cerr << "Cleanup message to stderr\n";
+}
+
+
+ATF_TEST_CASE(output_in_list);
+ATF_TEST_CASE_HEAD(output_in_list)
+{
+ std::cerr << "Should not write anything!\n";
+}
+ATF_TEST_CASE_BODY(output_in_list)
+{
+}
+
+
+ATF_TEST_CASE(pass);
+ATF_TEST_CASE_HEAD(pass)
+{
+ set_md_var("descr", "Always-passing test case");
+}
+ATF_TEST_CASE_BODY(pass)
+{
+}
+
+
+ATF_TEST_CASE_WITH_CLEANUP(shared_workdir);
+ATF_TEST_CASE_HEAD(shared_workdir)
+{
+}
+ATF_TEST_CASE_BODY(shared_workdir)
+{
+ atf::utils::create_file("shared_cookie", "");
+}
+ATF_TEST_CASE_CLEANUP(shared_workdir)
+{
+ if (!atf::utils::file_exists("shared_cookie"))
+ utils::abort_without_coredump();
+}
+
+
+ATF_TEST_CASE(spawn_blocking_child);
+ATF_TEST_CASE_HEAD(spawn_blocking_child)
+{
+ set_md_var("require.config", "control_dir");
+}
+ATF_TEST_CASE_BODY(spawn_blocking_child)
+{
+ pid_t pid = ::fork();
+ if (pid == -1)
+ fail("Cannot fork subprocess");
+ else if (pid == 0) {
+ for (;;)
+ ::pause();
+ } else {
+ const fs::path name = fs::path(get_config_var("control_dir")) / "pid";
+ std::ofstream pidfile(name.c_str());
+ ATF_REQUIRE(pidfile);
+ pidfile << pid;
+ pidfile.close();
+ }
+}
+
+
+ATF_TEST_CASE_WITH_CLEANUP(timeout_body);
+ATF_TEST_CASE_HEAD(timeout_body)
+{
+ if (has_config_var("timeout"))
+ set_md_var("timeout", get_config_var("timeout"));
+}
+ATF_TEST_CASE_BODY(timeout_body)
+{
+ ::sleep(10);
+ create_cookie(this, "control_dir", "cookie");
+}
+ATF_TEST_CASE_CLEANUP(timeout_body)
+{
+ create_cookie(this, "control_dir", "cookie.cleanup");
+}
+
+
+ATF_TEST_CASE_WITH_CLEANUP(timeout_cleanup);
+ATF_TEST_CASE_HEAD(timeout_cleanup)
+{
+}
+ATF_TEST_CASE_BODY(timeout_cleanup)
+{
+}
+ATF_TEST_CASE_CLEANUP(timeout_cleanup)
+{
+ ::sleep(10);
+ create_cookie(this, "control_dir", "cookie");
+}
+
+
+ATF_TEST_CASE_WITHOUT_HEAD(validate_isolation);
+ATF_TEST_CASE_BODY(validate_isolation)
+{
+ ATF_REQUIRE(utils::getenv("HOME").get() != "fake-value");
+ ATF_REQUIRE(!utils::getenv("LANG"));
+}
+
+
+/// Wrapper around ATF_ADD_TEST_CASE to only add a test when requested.
+///
+/// The caller can set the TEST_CASES environment variable to a
+/// whitespace-separated list of test case names to enable. If not empty, the
+/// list acts as a filter for the tests to add.
+///
+/// \param tcs List of test cases into which to register the test.
+/// \param filters List of filters to determine whether the test applies or not.
+/// \param name Name of the test case being added.
+#define ADD_TEST_CASE(tcs, filters, name) \
+ do { \
+ if (filters.empty() || filters.find(#name) != filters.end()) \
+ ATF_ADD_TEST_CASE(tcs, name); \
+ } while (false)
+
+
+ATF_INIT_TEST_CASES(tcs)
+{
+ logging::set_inmemory();
+
+ // TODO(jmmv): Instead of using "filters", we should make TEST_CASES
+ // explicitly list all the test cases to enable. This would let us get rid
+ // of some of the hacks below...
+ std::set< std::string > filters;
+
+ const optional< std::string > names_raw = utils::getenv("TEST_CASES");
+ if (names_raw) {
+ if (names_raw.get().empty())
+ return; // See TODO above.
+
+ const std::vector< std::string > names = text::split(
+ names_raw.get(), ' ');
+ std::copy(names.begin(), names.end(),
+ std::inserter(filters, filters.begin()));
+ }
+
+ if (filters.find("crash_head") != filters.end()) // See TODO above.
+ ATF_ADD_TEST_CASE(tcs, crash_head);
+ if (filters.find("output_in_list") != filters.end()) // See TODO above.
+ ATF_ADD_TEST_CASE(tcs, output_in_list);
+
+ ADD_TEST_CASE(tcs, filters, check_cleanup_workdir);
+ ADD_TEST_CASE(tcs, filters, check_configuration_variables);
+ ADD_TEST_CASE(tcs, filters, check_list_config);
+ ADD_TEST_CASE(tcs, filters, check_unprivileged);
+ ADD_TEST_CASE(tcs, filters, crash);
+ ADD_TEST_CASE(tcs, filters, crash_cleanup);
+ ADD_TEST_CASE(tcs, filters, create_cookie_in_control_dir);
+ ADD_TEST_CASE(tcs, filters, create_cookie_in_workdir);
+ ADD_TEST_CASE(tcs, filters, create_cookie_from_cleanup);
+ ADD_TEST_CASE(tcs, filters, expect_timeout);
+ ADD_TEST_CASE(tcs, filters, output);
+ ADD_TEST_CASE(tcs, filters, pass);
+ ADD_TEST_CASE(tcs, filters, shared_workdir);
+ ADD_TEST_CASE(tcs, filters, spawn_blocking_child);
+ ADD_TEST_CASE(tcs, filters, timeout_body);
+ ADD_TEST_CASE(tcs, filters, timeout_cleanup);
+ ADD_TEST_CASE(tcs, filters, validate_isolation);
+}