diff --git a/README.adoc b/README.adoc
index 0442216..efbe359 100644
--- a/README.adoc
+++ b/README.adoc
@@ -79,7 +79,7 @@ only.
 
 * Tested OS: Linux
 * C++ compiler (tested: {uri-gcc}[gcc] 8/9, {uri-clang}[clang] 6/7)
-* {uri-cmake}[cmake] (at least: 3.2)
+* {uri-cmake}[cmake] (at least: 3.6)
 * {uri-pkgconfig}[pkgconfig] (tested: 0.29)
 * {uri-libxdg-basedir}[libxdg-basedir] (tested: 1.2)
 * {uri-poco}[POCO] (tested: 1.9 / 1.7)
diff --git a/include/sqlite.hpp b/include/sqlite.hpp
index b9da095..fe02e29 100644
--- a/include/sqlite.hpp
+++ b/include/sqlite.hpp
@@ -52,7 +52,7 @@ namespace remwharead
          *
          *  @headerfile sqlite.hpp remwharead/sqlite.hpp
          */
-        using entry = struct entry
+        struct entry
         {
             string uri;
             string archive_uri;
diff --git a/include/uri.hpp b/include/uri.hpp
index f438ae9..2ab2cf9 100644
--- a/include/uri.hpp
+++ b/include/uri.hpp
@@ -32,7 +32,7 @@ namespace remwharead
      *
      *  @headerfile uri.hpp remwharead/uri.hpp
      */
-    using html_extract = struct html_extract
+    struct html_extract
     {
         bool successful = false;
         string error;
@@ -52,7 +52,7 @@ namespace remwharead
      *
      *  @headerfile uri.hpp remwharead/uri.hpp
      */
-    using archive_answer = struct archive_answer
+    struct archive_answer
     {
         bool successful = false;
         string error;
diff --git a/tests/test_json.cpp b/tests/test_json.cpp
new file mode 100644
index 0000000..3f22a13
--- /dev/null
+++ b/tests/test_json.cpp
@@ -0,0 +1,79 @@
+/*  This file is part of remwharead.
+ *  Copyright © 2019 tastytea <tastytea@tastytea.de>
+ *
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, version 3.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <exception>
+#include <string>
+#include <sstream>
+#include <regex>
+#include <chrono>
+#include <catch.hpp>
+#include "sqlite.hpp"
+#include "export/json.hpp"
+
+using namespace remwharead;
+using std::string;
+using std::chrono::system_clock;
+using std::regex;
+using std::regex_search;
+
+SCENARIO ("The JSON export works correctly")
+{
+    bool exception = false;
+    bool json_ok = true;
+
+    GIVEN ("One database entry")
+    {
+        Database::entry entry;
+        entry.uri = "https://example.com/page.html";
+        entry.tags = { "tag1", "tag2" };
+        entry.title = "Nice title";
+        entry.datetime = system_clock::time_point();
+        entry.fulltext = "Full text.";
+        entry.description = "Good description.";
+
+        try
+        {
+            std::ostringstream output;
+            Export::JSON({ entry }, output).print();
+            const string json = output.str();
+
+            const regex re(
+                R"(^\[\{"archive_uri":"",)"
+                R"("datetime":"\d{4}(-\d{2}){2}T(\d{2}:){2}\d{2}",)"
+                R"("description":"Good description\.",)"
+                R"("fulltext":"Full text\.",)"
+                R"("tags":\["tag1","tag2"\],)"
+                R"("title":"Nice title",)"
+                R"("uri":"https:\\/\\/example\.com\\/page\.html"\}\]\n$)");
+
+            if (!regex_search(json, re))
+            {
+                json_ok = false;
+            }
+        }
+        catch (const std::exception &e)
+        {
+            exception = true;
+        }
+
+        THEN ("No exception is thrown")
+            AND_THEN ("Output looks okay")
+        {
+            REQUIRE_FALSE(exception);
+            REQUIRE(json_ok);
+        }
+    }
+}
diff --git a/tests/test_rss.cpp b/tests/test_rss.cpp
new file mode 100644
index 0000000..6d77060
--- /dev/null
+++ b/tests/test_rss.cpp
@@ -0,0 +1,89 @@
+/*  This file is part of remwharead.
+ *  Copyright © 2019 tastytea <tastytea@tastytea.de>
+ *
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, version 3.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <exception>
+#include <string>
+#include <sstream>
+#include <regex>
+#include <chrono>
+#include <catch.hpp>
+#include "sqlite.hpp"
+#include "export/rss.hpp"
+
+using namespace remwharead;
+using std::string;
+using std::chrono::system_clock;
+using std::regex;
+using std::regex_search;
+
+SCENARIO ("The RSS export works correctly")
+{
+    bool exception = false;
+    bool rss_ok = true;
+
+    GIVEN ("One database entry")
+    {
+        Database::entry entry;
+        entry.uri = "https://example.com/page.html";
+        entry.tags = { "tag1", "tag2" };
+        entry.title = "Nice title";
+        entry.datetime = system_clock::time_point();
+        entry.fulltext = "Full text.";
+        entry.description = "Good description.";
+
+        try
+        {
+            std::ostringstream output;
+            Export::RSS({ entry }, output).print();
+            const string rss = output.str();
+
+            const regex re(
+                R"(^<rss version="2\.0" )"
+                R"(xmlns:atom="http://www\.w3\.org/2005/Atom"><channel>)"
+                R"(<title>Visited things</title><link/>)"
+                R"(<description>Export from remwharead\.</description>)"
+                R"(<generator>remwharead \d+\.\d+\.\d+</generator>)"
+                R"(<lastBuildDate>[A-Z][a-z]{2}, \d{2} [A-Z][a-z]{2} \d{4} )"
+                R"((\d{2}:){2}\d{2} [A-Z]+</lastBuildDate>)"
+                R"(<item><title>Nice title</title>)"
+                R"(<link>https://example\.com/page\.html</link>)"
+                R"(<guid isPermaLink="false">https://example\.com/page\.html )"
+                R"(at \d{4}(-\d{2}){2}T(\d{2}:){2}\d{2}</guid>)"
+                R"(<pubDate>[A-Z][a-z]{2}, \d{2} [A-Z][a-z]{2} \d{4} )"
+                R"((\d{2}:){2}\d{2} [A-Z]+</pubDate>)"
+                R"(<description>&lt;p&gt;Good description\.&lt;/p&gt;)"
+                R"(&lt;p&gt;&lt;strong&gt;Tags:&lt;/strong&gt; )"
+                R"(tag1, tag2&lt;/p&gt;</description>)"
+                R"(</item></channel></rss>\n$)");
+
+            if (!regex_search(rss, re))
+            {
+                rss_ok = false;
+            }
+        }
+        catch (const std::exception &e)
+        {
+            exception = true;
+        }
+
+        THEN ("No exception is thrown")
+            AND_THEN ("Output looks okay")
+        {
+            REQUIRE_FALSE(exception);
+            REQUIRE(rss_ok);
+        }
+    }
+}