diff --git a/cpp/etl/require_equal_containers.h b/cpp/etl/require_equal_containers.h
new file mode 100644
index 0000000..45d1213
--- /dev/null
+++ b/cpp/etl/require_equal_containers.h
@@ -0,0 +1,88 @@
+#if !defined(REQUIRE_EQUAL_CONTAINERS_H)
+#define REQUIRE_EQUAL_CONTAINERS_H
+
+#include <utility>
+#include <vector>
+#include <boost/version.hpp>
+
+#if BOOST_VERSION >= 105900
+
+namespace boost
+{
+namespace test_tools
+{
+namespace tt_detail
+{
+
+// teach Boost.Test how to print std::vector<T>
+template <typename T>
+inline std::ostream &operator<<(std::ostream &str, std::vector<T> const &items)
+{
+    str << '[';
+    bool first = true;
+    for (auto const& element : items) {
+        str << (!first ? "," : "") << element;
+        first = false;
+    }
+    return str << ']';
+}
+
+// teach Boost.Test how to print std::pair<K,V>
+template <typename K, typename V>
+inline std::ostream &operator<<(std::ostream &str, std::pair<K, V> const& item)
+{
+    return str << '<' << item.first << ',' << item.second << '>';
+}
+
+} // namespace tt_detail
+} // namespace test_tools
+} // namespace boost
+
+#else // BOOST_VERSION < 105900
+
+namespace boost
+{
+
+// teach Boost.Test how to print std::vector to wrap_stringstream
+template <typename T>
+inline wrap_stringstream&
+operator<<(wrap_stringstream& wrapped, std::vector<T> const& item)
+{
+    wrapped << '[';
+    bool first = true;
+    for (auto const& element : item) {
+        wrapped << (!first ? "," : "") << element;
+        first = false;
+    }
+    return wrapped << ']';
+}
+
+// teach Boost.Test how to print std::pair<K,V> to wrap_stringstream
+template <typename K, typename V>
+inline wrap_stringstream &operator<<(wrap_stringstream &str, std::pair<K, V> const& item)
+{
+    return str << '<' << item.first << ',' << item.second << '>';
+}
+
+namespace test_tools
+{
+
+// teach Boost.Test how to print std::pair with BOOST_REQUIRE_EQUAL
+template<>
+struct print_log_value<std::pair<int, int>>
+{
+    void operator()(std::ostream& ostr, std::pair<int, int> const& item)
+    {
+        ostr << '<' << item.first << ',' << item.second << '>';
+    }
+};
+
+} // namespace test_tools
+} // namespace boost
+
+#endif // BOOST_VERSION
+
+#define REQUIRE_EQUAL_CONTAINERS(left_, right_) \
+    BOOST_REQUIRE_EQUAL_COLLECTIONS(left_.begin(), left_.end(), right_.begin(), right_.end())
+
+#endif
diff --git a/cpp/grade-school/require_equal_containers.h b/cpp/grade-school/require_equal_containers.h
new file mode 100644
index 0000000..45d1213
--- /dev/null
+++ b/cpp/grade-school/require_equal_containers.h
@@ -0,0 +1,88 @@
+#if !defined(REQUIRE_EQUAL_CONTAINERS_H)
+#define REQUIRE_EQUAL_CONTAINERS_H
+
+#include <utility>
+#include <vector>
+#include <boost/version.hpp>
+
+#if BOOST_VERSION >= 105900
+
+namespace boost
+{
+namespace test_tools
+{
+namespace tt_detail
+{
+
+// teach Boost.Test how to print std::vector<T>
+template <typename T>
+inline std::ostream &operator<<(std::ostream &str, std::vector<T> const &items)
+{
+    str << '[';
+    bool first = true;
+    for (auto const& element : items) {
+        str << (!first ? "," : "") << element;
+        first = false;
+    }
+    return str << ']';
+}
+
+// teach Boost.Test how to print std::pair<K,V>
+template <typename K, typename V>
+inline std::ostream &operator<<(std::ostream &str, std::pair<K, V> const& item)
+{
+    return str << '<' << item.first << ',' << item.second << '>';
+}
+
+} // namespace tt_detail
+} // namespace test_tools
+} // namespace boost
+
+#else // BOOST_VERSION < 105900
+
+namespace boost
+{
+
+// teach Boost.Test how to print std::vector to wrap_stringstream
+template <typename T>
+inline wrap_stringstream&
+operator<<(wrap_stringstream& wrapped, std::vector<T> const& item)
+{
+    wrapped << '[';
+    bool first = true;
+    for (auto const& element : item) {
+        wrapped << (!first ? "," : "") << element;
+        first = false;
+    }
+    return wrapped << ']';
+}
+
+// teach Boost.Test how to print std::pair<K,V> to wrap_stringstream
+template <typename K, typename V>
+inline wrap_stringstream &operator<<(wrap_stringstream &str, std::pair<K, V> const& item)
+{
+    return str << '<' << item.first << ',' << item.second << '>';
+}
+
+namespace test_tools
+{
+
+// teach Boost.Test how to print std::pair with BOOST_REQUIRE_EQUAL
+template<>
+struct print_log_value<std::pair<int, int>>
+{
+    void operator()(std::ostream& ostr, std::pair<int, int> const& item)
+    {
+        ostr << '<' << item.first << ',' << item.second << '>';
+    }
+};
+
+} // namespace test_tools
+} // namespace boost
+
+#endif // BOOST_VERSION
+
+#define REQUIRE_EQUAL_CONTAINERS(left_, right_) \
+    BOOST_REQUIRE_EQUAL_COLLECTIONS(left_.begin(), left_.end(), right_.begin(), right_.end())
+
+#endif
diff --git a/cpp/nucleotide-count/require_equal_containers.h b/cpp/nucleotide-count/require_equal_containers.h
new file mode 100644
index 0000000..45d1213
--- /dev/null
+++ b/cpp/nucleotide-count/require_equal_containers.h
@@ -0,0 +1,88 @@
+#if !defined(REQUIRE_EQUAL_CONTAINERS_H)
+#define REQUIRE_EQUAL_CONTAINERS_H
+
+#include <utility>
+#include <vector>
+#include <boost/version.hpp>
+
+#if BOOST_VERSION >= 105900
+
+namespace boost
+{
+namespace test_tools
+{
+namespace tt_detail
+{
+
+// teach Boost.Test how to print std::vector<T>
+template <typename T>
+inline std::ostream &operator<<(std::ostream &str, std::vector<T> const &items)
+{
+    str << '[';
+    bool first = true;
+    for (auto const& element : items) {
+        str << (!first ? "," : "") << element;
+        first = false;
+    }
+    return str << ']';
+}
+
+// teach Boost.Test how to print std::pair<K,V>
+template <typename K, typename V>
+inline std::ostream &operator<<(std::ostream &str, std::pair<K, V> const& item)
+{
+    return str << '<' << item.first << ',' << item.second << '>';
+}
+
+} // namespace tt_detail
+} // namespace test_tools
+} // namespace boost
+
+#else // BOOST_VERSION < 105900
+
+namespace boost
+{
+
+// teach Boost.Test how to print std::vector to wrap_stringstream
+template <typename T>
+inline wrap_stringstream&
+operator<<(wrap_stringstream& wrapped, std::vector<T> const& item)
+{
+    wrapped << '[';
+    bool first = true;
+    for (auto const& element : item) {
+        wrapped << (!first ? "," : "") << element;
+        first = false;
+    }
+    return wrapped << ']';
+}
+
+// teach Boost.Test how to print std::pair<K,V> to wrap_stringstream
+template <typename K, typename V>
+inline wrap_stringstream &operator<<(wrap_stringstream &str, std::pair<K, V> const& item)
+{
+    return str << '<' << item.first << ',' << item.second << '>';
+}
+
+namespace test_tools
+{
+
+// teach Boost.Test how to print std::pair with BOOST_REQUIRE_EQUAL
+template<>
+struct print_log_value<std::pair<int, int>>
+{
+    void operator()(std::ostream& ostr, std::pair<int, int> const& item)
+    {
+        ostr << '<' << item.first << ',' << item.second << '>';
+    }
+};
+
+} // namespace test_tools
+} // namespace boost
+
+#endif // BOOST_VERSION
+
+#define REQUIRE_EQUAL_CONTAINERS(left_, right_) \
+    BOOST_REQUIRE_EQUAL_COLLECTIONS(left_.begin(), left_.end(), right_.begin(), right_.end())
+
+#endif
diff --git a/cpp/word-count/require_equal_containers.h b/cpp/word-count/require_equal_containers.h
new file mode 100644
index 0000000..45d1213
--- /dev/null
+++ b/cpp/word-count/require_equal_containers.h
@@ -0,0 +1,88 @@
+#if !defined(REQUIRE_EQUAL_CONTAINERS_H)
+#define REQUIRE_EQUAL_CONTAINERS_H
+
+#include <utility>
+#include <vector>
+#include <boost/version.hpp>
+
+#if BOOST_VERSION >= 105900
+
+namespace boost
+{
+namespace test_tools
+{
+namespace tt_detail
+{
+
+// teach Boost.Test how to print std::vector<T>
+template <typename T>
+inline std::ostream &operator<<(std::ostream &str, std::vector<T> const &items)
+{
+    str << '[';
+    bool first = true;
+    for (auto const& element : items) {
+        str << (!first ? "," : "") << element;
+        first = false;
+    }
+    return str << ']';
+}
+
+// teach Boost.Test how to print std::pair<K,V>
+template <typename K, typename V>
+inline std::ostream &operator<<(std::ostream &str, std::pair<K, V> const& item)
+{
+    return str << '<' << item.first << ',' << item.second << '>';
+}
+
+} // namespace tt_detail
+} // namespace test_tools
+} // namespace boost
+
+#else // BOOST_VERSION < 105900
+
+namespace boost
+{
+
+// teach Boost.Test how to print std::vector to wrap_stringstream
+template <typename T>
+inline wrap_stringstream&
+operator<<(wrap_stringstream& wrapped, std::vector<T> const& item)
+{
+    wrapped << '[';
+    bool first = true;
+    for (auto const& element : item) {
+        wrapped << (!first ? "," : "") << element;
+        first = false;
+    }
+    return wrapped << ']';
+}
+
+// teach Boost.Test how to print std::pair<K,V> to wrap_stringstream
+template <typename K, typename V>
+inline wrap_stringstream &operator<<(wrap_stringstream &str, std::pair<K, V> const& item)
+{
+    return str << '<' << item.first << ',' << item.second << '>';
+}
+
+namespace test_tools
+{
+
+// teach Boost.Test how to print std::pair with BOOST_REQUIRE_EQUAL
+template<>
+struct print_log_value<std::pair<int, int>>
+{
+    void operator()(std::ostream& ostr, std::pair<int, int> const& item)
+    {
+        ostr << '<' << item.first << ',' << item.second << '>';
+    }
+};
+
+} // namespace test_tools
+} // namespace boost
+
+#endif // BOOST_VERSION
+
+#define REQUIRE_EQUAL_CONTAINERS(left_, right_) \
+    BOOST_REQUIRE_EQUAL_COLLECTIONS(left_.begin(), left_.end(), right_.begin(), right_.end())
+
+#endif