--- a/cmake/function/IrccdDefineTest.cmake	Mon May 23 13:15:23 2016 +0200
+++ b/cmake/function/IrccdDefineTest.cmake	Mon May 23 14:05:41 2016 +0200
@@ -77,6 +77,7 @@
 		PRIVATE
 			${TEST_FLAGS}
 			SOURCEDIR="${CMAKE_CURRENT_SOURCE_DIR}"
+			BINARYDIR="${CMAKE_CURRENT_BINARY_DIR}"
 			IRCCD_TESTS_DIRECTORY="${CMAKE_BINARY_DIR}/tests"
 	)
 

--- a/plugins/history/history.js	Mon May 23 13:15:23 2016 +0200
+++ b/plugins/history/history.js	Mon May 23 14:05:41 2016 +0200
@@ -180,7 +180,7 @@
 
 		server.message(channel, Util.format(Plugin.format[args[0] == "seen" ? "seen" : "said"], kw));
 	} catch (e) {
-		server.message(channel, Util.format(kw));
+		server.message(channel, Util.format(Plugin.format["error"], kw));
 	}
 }
 

--- a/tests/CMakeLists.txt	Mon May 23 13:15:23 2016 +0200
+++ b/tests/CMakeLists.txt	Mon May 23 14:05:41 2016 +0200
@@ -41,5 +41,6 @@
 		add_subdirectory(plugin-ask)
 		add_subdirectory(plugin-auth)
 		add_subdirectory(plugin-hangman)
+		add_subdirectory(plugin-history)
 	endif ()
 endif ()

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/tests/plugin-history/CMakeLists.txt	Mon May 23 14:05:41 2016 +0200
@@ -0,0 +1,24 @@
+#
+# CMakeLists.txt -- CMake build system for irccd
+#
+# Copyright (c) 2013-2016 David Demelier <markand@malikania.fr>
+#
+# Permission to use, copy, modify, and/or distribute this software for any
+# purpose with or without fee is hereby granted, provided that the above
+# copyright notice and this permission notice appear in all copies.
+#
+# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+#
+
+irccd_define_test(
+	NAME plugin-history
+	SOURCES main.cpp
+	LIBRARIES libirccd
+	FLAGS PLUGINDIR=\"${IRCCD_FAKEROOTDIR}/${WITH_PLUGINDIR}\"
+)

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/tests/plugin-history/broken-conf.json	Mon May 23 14:05:41 2016 +0200
@@ -0,0 +1,1 @@
+this is not a json file

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/tests/plugin-history/main.cpp	Mon May 23 14:05:41 2016 +0200
@@ -0,0 +1,134 @@
+/*
+ * main.cpp -- test history plugin
+ *
+ * Copyright (c) 2013-2016 David Demelier <markand@malikania.fr>
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <regex>
+
+#include <gtest/gtest.h>
+
+#include <irccd/irccd.hpp>
+#include <irccd/server.hpp>
+#include <irccd/service-plugin.hpp>
+
+using namespace irccd;
+
+class ServerTest : public Server {
+private:
+	std::string m_last;
+
+public:
+	inline ServerTest()
+		: Server("test", ServerInfo())
+	{
+	}
+
+	inline const std::string &last() const noexcept
+	{
+		return m_last;
+	}
+
+	void message(std::string target, std::string message) override
+	{
+		m_last = util::join({target, message});
+	}
+};
+
+class HistoryTest : public testing::Test {
+protected:
+	Irccd m_irccd;
+	PluginService &m_ps;
+
+	std::shared_ptr<ServerTest> m_server;
+	std::shared_ptr<Plugin> m_plugin;
+
+public:
+	HistoryTest()
+		: m_ps(m_irccd.pluginService())
+		, m_server(std::make_shared<ServerTest>())
+	{
+		m_ps.setFormats("history", {
+			{ "error", "error=#{plugin}:#{command}:#{server}:#{channel}:#{origin}:#{nickname}" },
+			{ "seen", "seen=#{plugin}:#{command}:#{server}:#{channel}:#{origin}:#{nickname}:#{target}:%H:%M" },
+			{ "said", "said=#{plugin}:#{command}:#{server}:#{channel}:#{origin}:#{nickname}:#{target}:#{message}:%H:%M" },
+			{ "unknown", "unknown=#{plugin}:#{command}:#{server}:#{channel}:#{origin}:#{nickname}:#{target}" },
+		});
+	}
+
+	void load(PluginConfig config = PluginConfig())
+	{
+		// Add file if not there.
+		if (config.count("file") == 0)
+			config.emplace("file", SOURCEDIR "/words.conf");
+
+		m_ps.configure("history", config);
+		m_ps.load("history", PLUGINDIR "/history.js");
+		m_plugin = m_ps.require("history");
+	}
+};
+
+TEST_F(HistoryTest, formatError)
+{
+	load({{ "file", SOURCEDIR "/broken-conf.json" }});
+
+	m_plugin->onCommand(m_irccd, m_server, "jean!jean@localhost", "#history", "seen francis");
+	ASSERT_EQ("#history:error=history:!history:test:#history:jean!jean@localhost:jean", m_server->last());
+}
+
+TEST_F(HistoryTest, formatSeen)
+{
+	std::regex rule("#history:seen=history:!history:test:#history:destructor!dst@localhost:destructor:jean:\\d{2}:\\d{2}");
+
+	remove(BINARYDIR "/seen.json");
+	load({{ "file", BINARYDIR "/seen.json" }});
+
+	m_plugin->onMessage(m_irccd, m_server, "jean!jean@localhost", "#history", "hello");
+	m_plugin->onCommand(m_irccd, m_server, "destructor!dst@localhost", "#history", "seen jean");
+
+	ASSERT_TRUE(std::regex_match(m_server->last(), rule));
+}
+
+TEST_F(HistoryTest, formatSaid)
+{
+	std::regex rule("#history:said=history:!history:test:#history:destructor!dst@localhost:destructor:jean:hello:\\d{2}:\\d{2}");
+
+	remove(BINARYDIR "/said.json");
+	load({{ "file", BINARYDIR "/said.json" }});
+
+	m_plugin->onMessage(m_irccd, m_server, "jean!jean@localhost", "#history", "hello");
+	m_plugin->onCommand(m_irccd, m_server, "destructor!dst@localhost", "#history", "said jean");
+
+	ASSERT_TRUE(std::regex_match(m_server->last(), rule));
+}
+
+TEST_F(HistoryTest, formatUnknown)
+{
+	remove(BINARYDIR "/unknown.json");
+	load({{ "file", BINARYDIR "/unknown.json" }});
+
+	m_plugin->onMessage(m_irccd, m_server, "jean!jean@localhost", "#history", "hello");
+	m_plugin->onCommand(m_irccd, m_server, "destructor!dst@localhost", "#history", "seen nobody");
+
+	ASSERT_EQ("#history:unknown=history:!history:test:#history:destructor!dst@localhost:destructor:nobody", m_server->last());
+}
+
+int main(int argc, char **argv)
+{
+	path::setApplicationPath(argv[0]);
+	testing::InitGoogleTest(&argc, argv);
+
+	return RUN_ALL_TESTS();
+}