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diff --git a/utils/config/exceptions_test.cpp b/utils/config/exceptions_test.cpp
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+++ b/utils/config/exceptions_test.cpp
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+// Copyright 2012 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.
+
+#include "utils/config/exceptions.hpp"
+
+#include <cstring>
+
+#include <atf-c++.hpp>
+
+#include "utils/config/tree.ipp"
+
+namespace config = utils::config;
+namespace detail = utils::config::detail;
+
+
+ATF_TEST_CASE_WITHOUT_HEAD(error);
+ATF_TEST_CASE_BODY(error)
+{
+    const config::error e("Some text");
+    ATF_REQUIRE(std::strcmp("Some text", e.what()) == 0);
+}
+
+
+ATF_TEST_CASE_WITHOUT_HEAD(bad_combination_error);
+ATF_TEST_CASE_BODY(bad_combination_error)
+{
+    detail::tree_key key;
+    key.push_back("first");
+    key.push_back("second");
+
+    const config::bad_combination_error e(key, "Failed to combine '%s'");
+    ATF_REQUIRE(std::strcmp("Failed to combine 'first.second'", e.what()) == 0);
+}
+
+
+ATF_TEST_CASE_WITHOUT_HEAD(invalid_key_error);
+ATF_TEST_CASE_BODY(invalid_key_error)
+{
+    const config::invalid_key_error e("Some text");
+    ATF_REQUIRE(std::strcmp("Some text", e.what()) == 0);
+}
+
+
+ATF_TEST_CASE_WITHOUT_HEAD(invalid_key_value);
+ATF_TEST_CASE_BODY(invalid_key_value)
+{
+    detail::tree_key key;
+    key.push_back("1");
+    key.push_back("two");
+
+    const config::invalid_key_value e(key, "foo bar");
+    ATF_REQUIRE(std::strcmp("Invalid value for property '1.two': foo bar",
+                            e.what()) == 0);
+}
+
+
+ATF_TEST_CASE_WITHOUT_HEAD(syntax_error);
+ATF_TEST_CASE_BODY(syntax_error)
+{
+    const config::syntax_error e("Some text");
+    ATF_REQUIRE(std::strcmp("Some text", e.what()) == 0);
+}
+
+
+ATF_TEST_CASE_WITHOUT_HEAD(unknown_key_error__default_message);
+ATF_TEST_CASE_BODY(unknown_key_error__default_message)
+{
+    detail::tree_key key;
+    key.push_back("1");
+    key.push_back("two");
+
+    const config::unknown_key_error e(key);
+    ATF_REQUIRE(std::strcmp("Unknown configuration property '1.two'",
+                            e.what()) == 0);
+}
+
+
+ATF_TEST_CASE_WITHOUT_HEAD(unknown_key_error__custom_message);
+ATF_TEST_CASE_BODY(unknown_key_error__custom_message)
+{
+    detail::tree_key key;
+    key.push_back("1");
+    key.push_back("two");
+
+    const config::unknown_key_error e(key, "The test '%s' string");
+    ATF_REQUIRE(std::strcmp("The test '1.two' string", e.what()) == 0);
+}
+
+
+ATF_TEST_CASE_WITHOUT_HEAD(value_error);
+ATF_TEST_CASE_BODY(value_error)
+{
+    const config::value_error e("Some text");
+    ATF_REQUIRE(std::strcmp("Some text", e.what()) == 0);
+}
+
+
+ATF_INIT_TEST_CASES(tcs)
+{
+    ATF_ADD_TEST_CASE(tcs, error);
+    ATF_ADD_TEST_CASE(tcs, bad_combination_error);
+    ATF_ADD_TEST_CASE(tcs, invalid_key_error);
+    ATF_ADD_TEST_CASE(tcs, invalid_key_value);
+    ATF_ADD_TEST_CASE(tcs, syntax_error);
+    ATF_ADD_TEST_CASE(tcs, unknown_key_error__default_message);
+    ATF_ADD_TEST_CASE(tcs, unknown_key_error__custom_message);
+    ATF_ADD_TEST_CASE(tcs, value_error);
+}