diff --git a/tests/CMakeLists.txt b/tests/CMakeLists.txt
index 20add02b..b472636d 100644
--- a/tests/CMakeLists.txt
+++ b/tests/CMakeLists.txt
@@ -14,12 +14,12 @@ if(STATIC_CRT)
   ucm_set_runtime(STATIC)
 endif()
 
-file(GLOB CELL_TESTS ${CMAKE_CURRENT_SOURCE_DIR}/cell/*.hpp)
-file(GLOB PACKAGING_TESTS ${CMAKE_CURRENT_SOURCE_DIR}/packaging/*.hpp)
-file(GLOB STYLES_TESTS ${CMAKE_CURRENT_SOURCE_DIR}/styles/*.hpp)
-file(GLOB UTILS_TESTS ${CMAKE_CURRENT_SOURCE_DIR}/utils/*.hpp)
-file(GLOB WORKBOOK_TESTS ${CMAKE_CURRENT_SOURCE_DIR}/workbook/*.hpp)
-file(GLOB WORKSHEET_TESTS ${CMAKE_CURRENT_SOURCE_DIR}/worksheet/*.hpp)
+file(GLOB CELL_TESTS ${CMAKE_CURRENT_SOURCE_DIR}/cell/*.cpp)
+file(GLOB PACKAGING_TESTS ${CMAKE_CURRENT_SOURCE_DIR}/packaging/*.cpp)
+file(GLOB STYLES_TESTS ${CMAKE_CURRENT_SOURCE_DIR}/styles/*.cpp)
+file(GLOB UTILS_TESTS ${CMAKE_CURRENT_SOURCE_DIR}/utils/*.cpp)
+file(GLOB WORKBOOK_TESTS ${CMAKE_CURRENT_SOURCE_DIR}/workbook/*.cpp)
+file(GLOB WORKSHEET_TESTS ${CMAKE_CURRENT_SOURCE_DIR}/worksheet/*.cpp)
 
 set(TESTS
   ${CELL_TESTS}
diff --git a/tests/cell/cell_test_suite.hpp b/tests/cell/cell_test_suite.cpp
similarity index 93%
rename from tests/cell/cell_test_suite.hpp
rename to tests/cell/cell_test_suite.cpp
index 972de016..a0753a49 100644
--- a/tests/cell/cell_test_suite.hpp
+++ b/tests/cell/cell_test_suite.cpp
@@ -21,13 +21,26 @@
 // @license: http://www.opensource.org/licenses/mit-license.php
 // @author: see AUTHORS file
 
-#pragma once
-
 #include <sstream>
 
-#include <helpers/test_suite.hpp>
 #include <helpers/assertions.hpp>
-#include <xlnt/xlnt.hpp>
+#include <helpers/test_suite.hpp>
+
+#include <xlnt/cell/cell.hpp>
+#include <xlnt/cell/comment.hpp>
+#include <xlnt/cell/hyperlink.hpp>
+#include <xlnt/styles/number_format.hpp>
+#include <xlnt/styles/alignment.hpp>
+#include <xlnt/styles/border.hpp>
+#include <xlnt/styles/fill.hpp>
+#include <xlnt/styles/format.hpp>
+#include <xlnt/styles/protection.hpp>
+#include <xlnt/styles/style.hpp>
+#include <xlnt/worksheet/worksheet.hpp>
+#include <xlnt/utils/date.hpp>
+#include <xlnt/utils/datetime.hpp>
+#include <xlnt/utils/time.hpp>
+#include <xlnt/utils/timedelta.hpp>
 
 class cell_test_suite : public test_suite
 {
@@ -134,14 +147,13 @@ private:
         xlnt::workbook wb;
 
         const auto datatypes =
-        {
-            xlnt::cell::type::empty,
-            xlnt::cell::type::boolean,
-            xlnt::cell::type::error,
-            xlnt::cell::type::formula_string,
-            xlnt::cell::type::number,
-            xlnt::cell::type::shared_string
-        };
+            {
+                xlnt::cell::type::empty,
+                xlnt::cell::type::boolean,
+                xlnt::cell::type::error,
+                xlnt::cell::type::formula_string,
+                xlnt::cell::type::number,
+                xlnt::cell::type::shared_string};
 
         for (const auto &datatype : datatypes)
         {
@@ -209,7 +221,6 @@ private:
         xlnt_assert(!cell.has_formula());
     }
 
-
     void test_not_formula()
     {
         xlnt::workbook wb;
@@ -228,7 +239,7 @@ private:
         auto ws = wb.active_sheet();
         auto cell = ws.cell(xlnt::cell_reference(1, 1));
 
-        for (auto value : { true, false })
+        for (auto value : {true, false})
         {
             cell.value(value);
             xlnt_assert(cell.data_type() == xlnt::cell::type::boolean);
@@ -331,8 +342,8 @@ private:
         auto cell = ws.cell(xlnt::cell_reference(1, 1));
 
         // The bytes 0x00 through 0x1F inclusive must be manually escaped in values.
-        auto illegal_chrs = { 0, 1, 2, 3, 4, 5, 6, 7, 8, 11, 12, 14, 15, 16, 17, 18,
-                 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31 };
+        auto illegal_chrs = {0, 1, 2, 3, 4, 5, 6, 7, 8, 11, 12, 14, 15, 16, 17, 18,
+            19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31};
 
         for (auto i : illegal_chrs)
         {
@@ -341,9 +352,9 @@ private:
         }
 
         cell.value(std::string(1, 33));
-        cell.value(std::string(1, 9));  // Tab
-        cell.value(std::string(1, 10));  // Newline
-        cell.value(std::string(1, 13));  // Carriage return
+        cell.value(std::string(1, 9)); // Tab
+        cell.value(std::string(1, 10)); // Newline
+        cell.value(std::string(1, 13)); // Carriage return
         cell.value(" Leading and trailing spaces are legal ");
     }
 
@@ -393,8 +404,8 @@ private:
         auto cell = ws.cell("A1");
 
         xlnt::fill fill(xlnt::pattern_fill()
-            .type(xlnt::pattern_fill_type::solid)
-            .foreground(xlnt::color::red()));
+                            .type(xlnt::pattern_fill_type::solid)
+                            .foreground(xlnt::color::red()));
         cell.fill(fill);
 
         xlnt_assert(cell.has_format());
@@ -678,3 +689,5 @@ private:
         xlnt_assert_throws(cell.comment(), xlnt::exception);
     }
 };
+
+static cell_test_suite x{};
\ No newline at end of file
diff --git a/tests/cell/index_types_test_suite.hpp b/tests/cell/index_types_test_suite.cpp
similarity index 98%
rename from tests/cell/index_types_test_suite.hpp
rename to tests/cell/index_types_test_suite.cpp
index fcb70f17..d17ed12e 100644
--- a/tests/cell/index_types_test_suite.hpp
+++ b/tests/cell/index_types_test_suite.cpp
@@ -21,12 +21,10 @@
 // @license: http://www.opensource.org/licenses/mit-license.php
 // @author: see AUTHORS file
 
-#pragma once
-
 #include <iostream>
 
 #include <helpers/test_suite.hpp>
-#include <xlnt/xlnt.hpp>
+
 
 class index_types_test_suite : public test_suite
 {
@@ -103,3 +101,5 @@ public:
         xlnt_assert(!(4 <= c1));
     }
 };
+
+static index_types_test_suite x{};
\ No newline at end of file
diff --git a/tests/cell/rich_text_test_suite.hpp b/tests/cell/rich_text_test_suite.cpp
similarity index 98%
rename from tests/cell/rich_text_test_suite.hpp
rename to tests/cell/rich_text_test_suite.cpp
index 41f96162..af44f815 100644
--- a/tests/cell/rich_text_test_suite.hpp
+++ b/tests/cell/rich_text_test_suite.cpp
@@ -21,14 +21,13 @@
 // @license: http://www.opensource.org/licenses/mit-license.php
 // @author: see AUTHORS file
 
-#pragma once
-
 #include <ctime>
 #include <iostream>
 #include <sstream>
 
 #include <helpers/test_suite.hpp>
-#include <xlnt/xlnt.hpp>
+
+#include <xlnt/cell/rich_text.hpp>
 
 class rich_text_test_suite : public test_suite
 {
@@ -102,3 +101,4 @@ public:
         xlnt_assert_differs(text_formatted, text_family_differs);
     }
 };
+static rich_text_test_suite x{};
\ No newline at end of file
diff --git a/tests/helpers/assertions.hpp b/tests/helpers/assertions.hpp
index 8be904d3..531f6afd 100644
--- a/tests/helpers/assertions.hpp
+++ b/tests/helpers/assertions.hpp
@@ -2,6 +2,7 @@
 
 #include <cmath>
 #include <exception>
+#include <xlnt/utils/exceptions.hpp>
 
 #define XLNT_STRINGIFYX(x) #x
 #define XLNT_STRINGIFY(x) XLNT_STRINGIFYX(x)
diff --git a/tests/helpers/test_suite.cpp b/tests/helpers/test_suite.cpp
new file mode 100644
index 00000000..336f48b3
--- /dev/null
+++ b/tests/helpers/test_suite.cpp
@@ -0,0 +1,48 @@
+#include "test_suite.hpp"
+#include <iostream>
+
+std::vector<std::pair<std::function<void(void)>, std::string>> &test_suite::tests()
+{
+    static std::vector<std::pair<std::function<void(void)>, std::string>> all_tests;
+    return all_tests;
+}
+
+std::string build_name(const std::string &pretty, const std::string &method)
+{
+    return pretty.substr(0, pretty.find("::") + 2) + method;
+}
+
+test_status test_suite::go()
+{
+    test_status status;
+
+    for (auto test : tests())
+    {
+        try
+        {
+            test.first();
+            std::cout << '.';
+            status.tests_passed++;
+        }
+        catch (std::exception &ex)
+        {
+            std::string fail_msg = test.second + " failed with:\n" + std::string(ex.what());
+            std::cout << "*\n"
+                      << fail_msg << '\n';
+            status.tests_failed++;
+            status.failures.push_back(fail_msg);
+        }
+        catch (...)
+        {
+            std::cout << "*\n"
+                      << test.second << " failed\n";
+            status.tests_failed++;
+            status.failures.push_back(test.second);
+        }
+
+        std::cout.flush();
+        status.tests_run++;
+    }
+
+    return status;
+}
\ No newline at end of file
diff --git a/tests/helpers/test_suite.hpp b/tests/helpers/test_suite.hpp
index 02460d96..89062c89 100644
--- a/tests/helpers/test_suite.hpp
+++ b/tests/helpers/test_suite.hpp
@@ -8,6 +8,11 @@
 #include <vector>
 
 #include <helpers/assertions.hpp>
+#include <helpers/path_helper.hpp>
+//#include <helpers/temporary_directory.hpp>
+//#include <helpers/temporary_file.hpp>
+#include <helpers/timing.hpp>
+#include <helpers/xml_helper.hpp>
 
 struct test_status
 {
@@ -17,56 +22,21 @@ struct test_status
     std::vector<std::string> failures;
 };
 
-std::string build_name(const std::string &pretty, const std::string &method)
-{
-    return pretty.substr(0, pretty.find("::") + 2) + method;
-}
+std::string build_name(const std::string &pretty, const std::string &method);
 
 #define register_test(test) register_test_internal([this]() { test(); }, build_name(__FUNCTION__, #test));
 
 class test_suite
 {
 public:
-    test_status go()
-    {
-        test_status status;
-
-        for (auto test : tests)
-        {
-            try
-            {
-                test.first();
-                std::cout << ".";
-                status.tests_passed++;
-            }
-            catch (std::exception &ex)
-            {
-                std::string fail_msg = test.second + " failed with:\n" + std::string(ex.what());
-                std::cout << "*\n"
-                          << fail_msg << '\n';
-                status.tests_failed++;
-                status.failures.push_back(fail_msg);
-            }
-            catch (...)
-            {
-                std::cout << "*\n" << test.second << " failed\n";
-                status.tests_failed++;
-                status.failures.push_back(test.second);
-            }
-
-            std::cout.flush();
-            status.tests_run++;
-        }
-
-        return status;
-    }
+    static test_status go();
 
 protected:
-    void register_test_internal(std::function<void()> t, const std::string &function)
+    static void register_test_internal(std::function<void()> t, const std::string &function)
     {
-        tests.push_back(std::make_pair(t, function));
+        tests().push_back(std::make_pair(t, function));
     }
 
 private:
-    std::vector<std::pair<std::function<void(void)>, std::string>> tests;
+    static std::vector<std::pair<std::function<void(void)>, std::string>> &tests();
 };
diff --git a/tests/helpers/timing.hpp b/tests/helpers/timing.hpp
index 5623987a..b2d91869 100644
--- a/tests/helpers/timing.hpp
+++ b/tests/helpers/timing.hpp
@@ -26,7 +26,7 @@
 namespace xlnt {
 namespace benchmarks {
 
-std::size_t current_time()
+inline std::size_t current_time()
 {
     auto now = std::chrono::system_clock::now();
     auto time_since_epoch = now.time_since_epoch();
diff --git a/tests/runner.cpp b/tests/runner.cpp
index 08a589f2..b2f31a56 100644
--- a/tests/runner.cpp
+++ b/tests/runner.cpp
@@ -22,50 +22,17 @@
 // @author: see AUTHORS file
 
 #include <iostream>
+#include <helpers/test_suite.hpp>
 
-#include <cell/cell_test_suite.hpp>
-#include <cell/index_types_test_suite.hpp>
-#include <cell/rich_text_test_suite.hpp>
-
-#include <styles/alignment_test_suite.hpp>
-#include <styles/color_test_suite.hpp>
-#include <styles/fill_test_suite.hpp>
-#include <styles/number_format_test_suite.hpp>
-
-#include <utils/datetime_test_suite.hpp>
-#include <utils/path_test_suite.hpp>
-#include <utils/helper_test_suite.hpp>
-#include <utils/timedelta_test_suite.hpp>
-
-#include <workbook/named_range_test_suite.hpp>
-#include <workbook/serialization_test_suite.hpp>
-#include <workbook/workbook_test_suite.hpp>
-
-#include <worksheet/page_setup_test_suite.hpp>
-#include <worksheet/range_test_suite.hpp>
-#include <worksheet/worksheet_test_suite.hpp>
-
-#include <detail/cryptography/compound_document.hpp>
-
-test_status overall_status;
-
-template<typename T>
-void run_tests()
-{
-    auto status = T{}.go();
-
-    overall_status.tests_run += status.tests_run;
-    overall_status.tests_passed += status.tests_passed;
-    overall_status.tests_failed += status.tests_failed;
-
-    std::copy(status.failures.begin(), status.failures.end(), std::back_inserter(overall_status.failures));
-}
-
-void print_summary()
+void print_summary(const test_status& results)
 {
     std::cout << "\n\n";
 
-    for (auto failure : overall_status.failures)
+    std::cout << "Run: " << results.tests_run << '\n';
+    std::cout << "Passed: " << results.tests_passed << '\n';
+    std::cout << "Failed: " << results.tests_failed << '\n' << '\n';
+
+    for (auto failure : results.failures)
     {
         std::cout << failure << "\n\n";
     }
@@ -73,34 +40,9 @@ void print_summary()
 
 int main()
 {
-    // cell
-    run_tests<cell_test_suite>();
-    run_tests<index_types_test_suite>();
-    run_tests<rich_text_test_suite>();
+    test_status overall_status = test_suite::go();
 
-    // styles
-    run_tests<alignment_test_suite>();
-    run_tests<color_test_suite>();
-    run_tests<fill_test_suite>();
-    run_tests<number_format_test_suite>();
-
-    // utils
-    run_tests<datetime_test_suite>();
-    run_tests<path_test_suite>();
-    run_tests<helper_test_suite>();
-    run_tests<timedelta_test_suite>();
-
-    // workbook
-    run_tests<named_range_test_suite>();
-    run_tests<serialization_test_suite>();
-    run_tests<workbook_test_suite>();
-
-    // worksheet
-    run_tests<page_setup_test_suite>();
-    run_tests<range_test_suite>();
-    run_tests<worksheet_test_suite>();
-
-    print_summary();
+    print_summary(overall_status);
 
     return static_cast<int>(overall_status.tests_failed);
 }
diff --git a/tests/styles/alignment_test_suite.hpp b/tests/styles/alignment_test_suite.cpp
similarity index 96%
rename from tests/styles/alignment_test_suite.hpp
rename to tests/styles/alignment_test_suite.cpp
index 54a362b2..7ec470ec 100644
--- a/tests/styles/alignment_test_suite.hpp
+++ b/tests/styles/alignment_test_suite.cpp
@@ -21,12 +21,10 @@
 // @license: http://www.opensource.org/licenses/mit-license.php
 // @author: see AUTHORS file
 
-#pragma once
-
 #include <iostream>
 
 #include <helpers/test_suite.hpp>
-#include <xlnt/xlnt.hpp>
+#include <xlnt/styles/alignment.hpp>
 
 class alignment_test_suite : public test_suite
 {
@@ -46,3 +44,4 @@ public:
         xlnt_assert(!alignment.wrap());
     }
 };
+static alignment_test_suite x;
\ No newline at end of file
diff --git a/tests/styles/color_test_suite.hpp b/tests/styles/color_test_suite.cpp
similarity index 97%
rename from tests/styles/color_test_suite.hpp
rename to tests/styles/color_test_suite.cpp
index 700fbaf5..ac61291b 100644
--- a/tests/styles/color_test_suite.hpp
+++ b/tests/styles/color_test_suite.cpp
@@ -21,12 +21,11 @@
 // @license: http://www.opensource.org/licenses/mit-license.php
 // @author: see AUTHORS file
 
-#pragma once
-
 #include <iostream>
 
 #include <helpers/test_suite.hpp>
-#include <xlnt/xlnt.hpp>
+
+#include <xlnt/styles/color.hpp>
 
 class color_test_suite : public test_suite
 {
@@ -74,3 +73,4 @@ public:
         xlnt_assert_throws(theme.rgb(), xlnt::invalid_attribute);
     }
 };
+static color_test_suite x;
\ No newline at end of file
diff --git a/tests/styles/fill_test_suite.hpp b/tests/styles/fill_test_suite.cpp
similarity index 96%
rename from tests/styles/fill_test_suite.hpp
rename to tests/styles/fill_test_suite.cpp
index 0263ce39..c51379d5 100644
--- a/tests/styles/fill_test_suite.hpp
+++ b/tests/styles/fill_test_suite.cpp
@@ -21,12 +21,14 @@
 // @license: http://www.opensource.org/licenses/mit-license.php
 // @author: see AUTHORS file
 
-#pragma once
-
 #include <iostream>
 
 #include <helpers/test_suite.hpp>
-#include <xlnt/xlnt.hpp>
+
+#include <xlnt/cell/cell.hpp>
+#include <xlnt/styles/fill.hpp>
+#include <xlnt/utils/date.hpp>
+#include <xlnt/worksheet/worksheet.hpp>
 
 class fill_test_suite : public test_suite
 {
@@ -104,3 +106,4 @@ public:
         xlnt_assert_equals(cell2.fill(), xlnt::fill::solid(xlnt::color::green()));
     }
 };
+static fill_test_suite x;
\ No newline at end of file
diff --git a/tests/styles/number_format_test_suite.hpp b/tests/styles/number_format_test_suite.cpp
similarity index 99%
rename from tests/styles/number_format_test_suite.hpp
rename to tests/styles/number_format_test_suite.cpp
index 7477cd2b..0b7e291e 100644
--- a/tests/styles/number_format_test_suite.hpp
+++ b/tests/styles/number_format_test_suite.cpp
@@ -21,12 +21,14 @@
 // @license: http://www.opensource.org/licenses/mit-license.php
 // @author: see AUTHORS file
 
-#pragma once
-
 #include <iostream>
 
 #include <helpers/test_suite.hpp>
-#include <xlnt/xlnt.hpp>
+
+#include <xlnt/styles/number_format.hpp>
+#include <xlnt/utils/date.hpp>
+#include <xlnt/utils/time.hpp>
+#include <xlnt/utils/timedelta.hpp>
 
 class number_format_test_suite : public test_suite
 {
@@ -991,3 +993,4 @@ public:
         format_and_test(xlnt::number_format::date_myminus(), {{"5-16", "###########", "1-00", "text"}});
     }
 };
+static number_format_test_suite x;
\ No newline at end of file
diff --git a/tests/utils/datetime_test_suite.hpp b/tests/utils/datetime_test_suite.cpp
similarity index 97%
rename from tests/utils/datetime_test_suite.hpp
rename to tests/utils/datetime_test_suite.cpp
index 3824baf6..85e5f186 100644
--- a/tests/utils/datetime_test_suite.hpp
+++ b/tests/utils/datetime_test_suite.cpp
@@ -21,12 +21,12 @@
 // @license: http://www.opensource.org/licenses/mit-license.php
 // @author: see AUTHORS file
 
-#pragma once
-
 #include <iostream>
 
 #include <helpers/test_suite.hpp>
-#include <xlnt/xlnt.hpp>
+#include <xlnt/utils/date.hpp>
+#include <xlnt/utils/datetime.hpp>
+#include <xlnt/utils/time.hpp>
 
 class datetime_test_suite : public test_suite
 {
@@ -114,3 +114,4 @@ public:
         xlnt_assert_differs(d1, d3);
     }
 };
+static datetime_test_suite x;
\ No newline at end of file
diff --git a/tests/utils/helper_test_suite.hpp b/tests/utils/helper_test_suite.cpp
similarity index 98%
rename from tests/utils/helper_test_suite.hpp
rename to tests/utils/helper_test_suite.cpp
index 0bd96027..8c743a80 100644
--- a/tests/utils/helper_test_suite.hpp
+++ b/tests/utils/helper_test_suite.cpp
@@ -21,8 +21,6 @@
 // @license: http://www.opensource.org/licenses/mit-license.php
 // @author: see AUTHORS file
 
-#pragma once
-
 #include <iostream>
 #include <stdexcept>
 
@@ -30,6 +28,8 @@
 #include <helpers/xml_helper.hpp>
 #include <helpers/assertions.hpp>
 
+#include <xlnt/utils/exceptions.hpp>
+
 class helper_test_suite : public test_suite
 {
 public:
@@ -154,3 +154,4 @@ public:
         xlnt_assert(xml_helper::compare_xml_exact("<a>text</a>", "<a>text</a>", true));
     }
 };
+static helper_test_suite x;
\ No newline at end of file
diff --git a/tests/utils/path_test_suite.hpp b/tests/utils/path_test_suite.cpp
similarity index 97%
rename from tests/utils/path_test_suite.hpp
rename to tests/utils/path_test_suite.cpp
index 69a0a3ac..f8d4f24c 100644
--- a/tests/utils/path_test_suite.hpp
+++ b/tests/utils/path_test_suite.cpp
@@ -21,14 +21,11 @@
 // @license: http://www.opensource.org/licenses/mit-license.php
 // @author: see AUTHORS file
 
-#pragma once
-
 #include <iostream>
 
 #include <helpers/path_helper.hpp>
 #include <helpers/temporary_file.hpp>
 #include <helpers/test_suite.hpp>
-#include <xlnt/xlnt.hpp>
 
 class path_test_suite : public test_suite
 {
@@ -52,3 +49,4 @@ public:
 		xlnt_assert(temp.get_path().exists());
 	}
 };
+static path_test_suite x;
\ No newline at end of file
diff --git a/tests/utils/timedelta_test_suite.hpp b/tests/utils/timedelta_test_suite.cpp
similarity index 97%
rename from tests/utils/timedelta_test_suite.hpp
rename to tests/utils/timedelta_test_suite.cpp
index ba9a2f87..37761517 100644
--- a/tests/utils/timedelta_test_suite.hpp
+++ b/tests/utils/timedelta_test_suite.cpp
@@ -21,12 +21,12 @@
 // @license: http://www.opensource.org/licenses/mit-license.php
 // @author: see AUTHORS file
 
-#pragma once
-
 #include <iostream>
 
 #include <helpers/test_suite.hpp>
 
+#include <xlnt/utils/timedelta.hpp>
+
 class timedelta_test_suite : public test_suite
 {
 public:
@@ -82,3 +82,4 @@ public:
         xlnt_assert_equals(rollover.microseconds, 0);
     }
 };
+static timedelta_test_suite x;
\ No newline at end of file
diff --git a/tests/workbook/named_range_test_suite.hpp b/tests/workbook/named_range_test_suite.cpp
similarity index 99%
rename from tests/workbook/named_range_test_suite.hpp
rename to tests/workbook/named_range_test_suite.cpp
index 3f0b722a..3e6c8fe8 100644
--- a/tests/workbook/named_range_test_suite.hpp
+++ b/tests/workbook/named_range_test_suite.cpp
@@ -21,8 +21,6 @@
 // @license: http://www.opensource.org/licenses/mit-license.php
 // @author: see AUTHORS file
 
-#pragma once
-
 #include <iostream>
 
 #include <helpers/test_suite.hpp>
@@ -257,3 +255,4 @@ public:
             [range_as_string(range, include_value = True) for range in wbcopy.get_named_ranges()])*/
     }
 };
+static named_range_test_suite x;
\ No newline at end of file
diff --git a/tests/workbook/serialization_test_suite.hpp b/tests/workbook/serialization_test_suite.cpp
similarity index 84%
rename from tests/workbook/serialization_test_suite.hpp
rename to tests/workbook/serialization_test_suite.cpp
index 10c2e24b..3533159c 100644
--- a/tests/workbook/serialization_test_suite.hpp
+++ b/tests/workbook/serialization_test_suite.cpp
@@ -21,20 +21,37 @@
 // @license: http://www.opensource.org/licenses/mit-license.php
 // @author: see AUTHORS file
 
-#pragma once
-
 #include <iostream>
 
-#include <detail/serialization/vector_streambuf.hpp>
-#include <detail/cryptography/xlsx_crypto_consumer.hpp>
-#include <helpers/temporary_file.hpp>
-#include <helpers/test_suite.hpp>
-#include <helpers/path_helper.hpp>
-#include <helpers/xml_helper.hpp>
-#include <xlnt/worksheet/sheet_format_properties.hpp>
+#include <xlnt/cell/comment.hpp>
+#include <xlnt/cell/hyperlink.hpp>
+#include <xlnt/cell/cell.hpp>
+#include <xlnt/styles/font.hpp>
+#include <xlnt/styles/style.hpp>
+#include <xlnt/styles/fill.hpp>
+#include <xlnt/styles/format.hpp>
+#include <xlnt/styles/number_format.hpp>
+#include <xlnt/styles/border.hpp>
+#include <xlnt/utils/date.hpp>
+#include <xlnt/utils/datetime.hpp>
+#include <xlnt/utils/time.hpp>
+#include <xlnt/utils/timedelta.hpp>
+#include <xlnt/utils/variant.hpp>
 #include <xlnt/workbook/streaming_workbook_reader.hpp>
 #include <xlnt/workbook/streaming_workbook_writer.hpp>
 #include <xlnt/workbook/workbook.hpp>
+#include <xlnt/workbook/metadata_property.hpp>
+#include <xlnt/worksheet/column_properties.hpp>
+#include <xlnt/worksheet/row_properties.hpp>
+#include <xlnt/worksheet/sheet_format_properties.hpp>
+#include <xlnt/worksheet/header_footer.hpp>
+#include <xlnt/worksheet/worksheet.hpp>
+#include <detail/cryptography/xlsx_crypto_consumer.hpp>
+#include <detail/serialization/vector_streambuf.hpp>
+#include <helpers/path_helper.hpp>
+#include <helpers/temporary_file.hpp>
+#include <helpers/test_suite.hpp>
+#include <helpers/xml_helper.hpp>
 
 class serialization_test_suite : public test_suite
 {
@@ -75,8 +92,8 @@ public:
         register_test(test_streaming_write);
     }
 
-	bool workbook_matches_file(xlnt::workbook &wb, const xlnt::path &file)
-	{
+    bool workbook_matches_file(xlnt::workbook &wb, const xlnt::path &file)
+    {
         std::vector<std::uint8_t> wb_data;
         wb.save(wb_data);
         wb.save("temp.xlsx");
@@ -84,109 +101,109 @@ public:
         std::ifstream file_stream(file.string(), std::ios::binary);
         auto file_data = xlnt::detail::to_vector(file_stream);
 
-		return xml_helper::xlsx_archives_match(wb_data, file_data);
-	}
+        return xml_helper::xlsx_archives_match(wb_data, file_data);
+    }
 
-	void test_produce_empty()
-	{
-		xlnt::workbook wb;
+    void test_produce_empty()
+    {
+        xlnt::workbook wb;
         const auto path = path_helper::test_file("3_default.xlsx");
-		xlnt_assert(workbook_matches_file(wb, path));
-	}
+        xlnt_assert(workbook_matches_file(wb, path));
+    }
 
-	void test_produce_simple_excel()
-	{
-		xlnt::workbook wb;
-		auto ws = wb.active_sheet();
+    void test_produce_simple_excel()
+    {
+        xlnt::workbook wb;
+        auto ws = wb.active_sheet();
 
-		auto bold_font = xlnt::font().bold(true);
+        auto bold_font = xlnt::font().bold(true);
 
-		ws.cell("A1").value("Type");
-		ws.cell("A1").font(bold_font);
+        ws.cell("A1").value("Type");
+        ws.cell("A1").font(bold_font);
 
-		ws.cell("B1").value("Value");
-		ws.cell("B1").font(bold_font);
+        ws.cell("B1").value("Value");
+        ws.cell("B1").font(bold_font);
 
-		ws.cell("A2").value("null");
-		ws.cell("B2").value(nullptr);
+        ws.cell("A2").value("null");
+        ws.cell("B2").value(nullptr);
 
-		ws.cell("A3").value("bool (true)");
-		ws.cell("B3").value(true);
+        ws.cell("A3").value("bool (true)");
+        ws.cell("B3").value(true);
 
-		ws.cell("A4").value("bool (false)");
-		ws.cell("B4").value(false);
+        ws.cell("A4").value("bool (false)");
+        ws.cell("B4").value(false);
 
-		ws.cell("A5").value("number (int)");
-		ws.cell("B5").value(std::numeric_limits<int>::max());
+        ws.cell("A5").value("number (int)");
+        ws.cell("B5").value(std::numeric_limits<int>::max());
 
-		ws.cell("A5").value("number (unsigned int)");
-		ws.cell("B5").value(std::numeric_limits<unsigned int>::max());
+        ws.cell("A5").value("number (unsigned int)");
+        ws.cell("B5").value(std::numeric_limits<unsigned int>::max());
 
-		ws.cell("A6").value("number (long long int)");
-		ws.cell("B6").value(std::numeric_limits<long long int>::max());
+        ws.cell("A6").value("number (long long int)");
+        ws.cell("B6").value(std::numeric_limits<long long int>::max());
 
-		ws.cell("A6").value("number (unsigned long long int)");
-		ws.cell("B6").value(std::numeric_limits<unsigned long long int>::max());
+        ws.cell("A6").value("number (unsigned long long int)");
+        ws.cell("B6").value(std::numeric_limits<unsigned long long int>::max());
 
-		ws.cell("A13").value("number (float)");
-		ws.cell("B13").value(std::numeric_limits<float>::max());
+        ws.cell("A13").value("number (float)");
+        ws.cell("B13").value(std::numeric_limits<float>::max());
 
-		ws.cell("A14").value("number (double)");
-		ws.cell("B14").value(std::numeric_limits<double>::max());
+        ws.cell("A14").value("number (double)");
+        ws.cell("B14").value(std::numeric_limits<double>::max());
 
-		ws.cell("A16").value("text (char *)");
-		ws.cell("B16").value("string");
+        ws.cell("A16").value("text (char *)");
+        ws.cell("B16").value("string");
 
-		ws.cell("A17").value("text (std::string)");
-		ws.cell("B17").value(std::string("string"));
+        ws.cell("A17").value("text (std::string)");
+        ws.cell("B17").value(std::string("string"));
 
-		ws.cell("A18").value("date");
-		ws.cell("B18").value(xlnt::date(2016, 2, 3));
+        ws.cell("A18").value("date");
+        ws.cell("B18").value(xlnt::date(2016, 2, 3));
 
-		ws.cell("A19").value("time");
-		ws.cell("B19").value(xlnt::time(1, 2, 3, 4));
+        ws.cell("A19").value("time");
+        ws.cell("B19").value(xlnt::time(1, 2, 3, 4));
 
-		ws.cell("A20").value("datetime");
-		ws.cell("B20").value(xlnt::datetime(2016, 2, 3, 1, 2, 3, 4));
+        ws.cell("A20").value("datetime");
+        ws.cell("B20").value(xlnt::datetime(2016, 2, 3, 1, 2, 3, 4));
 
-		ws.cell("A21").value("timedelta");
-		ws.cell("B21").value(xlnt::timedelta(1, 2, 3, 4, 5));
+        ws.cell("A21").value("timedelta");
+        ws.cell("B21").value(xlnt::timedelta(1, 2, 3, 4, 5));
 
-		ws.freeze_panes("B2");
+        ws.freeze_panes("B2");
 
-		std::vector<std::uint8_t> temp_buffer;
-		wb.save(temp_buffer);
-		xlnt_assert(!temp_buffer.empty());
-	}
+        std::vector<std::uint8_t> temp_buffer;
+        wb.save(temp_buffer);
+        xlnt_assert(!temp_buffer.empty());
+    }
 
-	void test_save_after_sheet_deletion()
-	{
-		xlnt::workbook workbook;
+    void test_save_after_sheet_deletion()
+    {
+        xlnt::workbook workbook;
 
-		xlnt_assert_equals(workbook.sheet_titles().size(), 1);
+        xlnt_assert_equals(workbook.sheet_titles().size(), 1);
 
-		auto sheet = workbook.create_sheet();
-		sheet.title("XXX1");
-		xlnt_assert_equals(workbook.sheet_titles().size(), 2);
+        auto sheet = workbook.create_sheet();
+        sheet.title("XXX1");
+        xlnt_assert_equals(workbook.sheet_titles().size(), 2);
 
-		workbook.remove_sheet(workbook.sheet_by_title("XXX1"));
-		xlnt_assert_equals(workbook.sheet_titles().size(), 1);
+        workbook.remove_sheet(workbook.sheet_by_title("XXX1"));
+        xlnt_assert_equals(workbook.sheet_titles().size(), 1);
 
-		std::vector<std::uint8_t> temp_buffer;
-		xlnt_assert_throws_nothing(workbook.save(temp_buffer));
-		xlnt_assert(!temp_buffer.empty());
-	}
+        std::vector<std::uint8_t> temp_buffer;
+        xlnt_assert_throws_nothing(workbook.save(temp_buffer));
+        xlnt_assert(!temp_buffer.empty());
+    }
 
-	void test_write_comments_hyperlinks_formulae()
-	{
-		xlnt::workbook wb;
+    void test_write_comments_hyperlinks_formulae()
+    {
+        xlnt::workbook wb;
 
         xlnt::sheet_format_properties format_properties;
         format_properties.base_col_width = 10.0;
         format_properties.default_row_height = 16.0;
         format_properties.dy_descent = 0.2;
 
-		auto sheet1 = wb.active_sheet();
+        auto sheet1 = wb.active_sheet();
         sheet1.format_properties(format_properties);
 
         auto selection = xlnt::selection();
@@ -196,10 +213,10 @@ public:
 
         // comments
         auto comment_font = xlnt::font()
-            .bold(true)
-            .size(10)
-            .color(xlnt::indexed_color(81))
-            .name("Calibri");
+                                .bold(true)
+                                .size(10)
+                                .color(xlnt::indexed_color(81))
+                                .name("Calibri");
         sheet1.cell("A1").value("Sheet1!A1");
         sheet1.cell("A1").comment("Sheet1 comment", comment_font, "Microsoft Office User");
 
@@ -208,12 +225,12 @@ public:
 
         // hyperlinks
         auto hyperlink_font = xlnt::font()
-            .size(12)
-            .color(xlnt::theme_color(10))
-            .name("Calibri")
-            .family(2)
-            .scheme("minor")
-            .underline(xlnt::font::underline_style::single);
+                                  .size(12)
+                                  .color(xlnt::theme_color(10))
+                                  .name("Calibri")
+                                  .family(2)
+                                  .scheme("minor")
+                                  .underline(xlnt::font::underline_style::single);
         auto hyperlink_style = wb.create_builtin_style(8);
         hyperlink_style.font(hyperlink_font);
         hyperlink_style.number_format(hyperlink_style.number_format(), false);
@@ -245,7 +262,7 @@ public:
             sheet1.row_properties(i).dy_descent = 0.2;
         }
 
-		auto sheet2 = wb.create_sheet();
+        auto sheet2 = wb.create_sheet();
         sheet2.format_properties(format_properties);
         sheet2.add_view(xlnt::sheet_view());
         sheet2.view().add_selection(selection);
@@ -278,8 +295,8 @@ public:
         wb.core_property(xlnt::core_property::modified, "2018-03-18T20:59:53Z");
 
         const auto path = path_helper::test_file("10_comments_hyperlinks_formulae.xlsx");
-		xlnt_assert(workbook_matches_file(wb, path));
-	}
+        xlnt_assert(workbook_matches_file(wb, path));
+    }
 
     void test_save_after_clear_all_formulae()
     {
@@ -457,7 +474,7 @@ public:
         xlnt_assert(wb.has_custom_property("Client"));
         xlnt_assert_equals(wb.custom_property("Client").get<std::string>(), "me!");
     }
-    
+
     void test_read_custom_heights_widths()
     {
         xlnt::workbook wb;
@@ -584,7 +601,7 @@ public:
         std::vector<std::uint8_t> destination_data;
         //source_workbook.save(destination_data, password);
         source_workbook.save("encrypted.xlsx", password);
-       
+
         //xlnt::workbook temp;
         //temp.load("encrypted.xlsx", password);
 
@@ -592,22 +609,22 @@ public:
         //return source_data == destination_data;
         return true;
     }
-    
+
     void test_round_trip_rw_minimal()
     {
         xlnt_assert(round_trip_matches_rw(path_helper::test_file("2_minimal.xlsx")));
     }
-    
+
     void test_round_trip_rw_default()
     {
         xlnt_assert(round_trip_matches_rw(path_helper::test_file("3_default.xlsx")));
     }
-    
+
     void test_round_trip_rw_every_style()
     {
         xlnt_assert(round_trip_matches_rw(path_helper::test_file("4_every_style.xlsx")));
     }
-    
+
     void test_round_trip_rw_unicode()
     {
         // u8"/9_unicode_Λ.xlsx" doesn't use 0xc3aa for the capital lambda...
@@ -624,7 +641,7 @@ public:
     {
         xlnt_assert(round_trip_matches_rw(path_helper::test_file("11_print_settings.xlsx")));
     }
-    
+
     void test_round_trip_rw_advanced_properties()
     {
         xlnt_assert(round_trip_matches_rw(path_helper::test_file("12_advanced_properties.xlsx")));
@@ -634,12 +651,12 @@ public:
     {
         xlnt_assert(round_trip_matches_rw(path_helper::test_file("13_custom_heights_widths.xlsx")));
     }
-    
+
     void test_round_trip_rw_encrypted_agile()
     {
         xlnt_assert(round_trip_matches_rw(path_helper::test_file("5_encrypted_agile.xlsx"), "secret"));
     }
-    
+
     void test_round_trip_rw_encrypted_libre()
     {
         xlnt_assert(round_trip_matches_rw(path_helper::test_file("6_encrypted_libre.xlsx"), u8"\u043F\u0430\u0440\u043E\u043B\u044C")); // u8"пароль"
@@ -692,3 +709,4 @@ public:
         c3.value("C3!");
     }
 };
+static serialization_test_suite x;
\ No newline at end of file
diff --git a/tests/workbook/workbook_test_suite.hpp b/tests/workbook/workbook_test_suite.cpp
similarity index 98%
rename from tests/workbook/workbook_test_suite.hpp
rename to tests/workbook/workbook_test_suite.cpp
index aeb1e19d..86e8ae1e 100644
--- a/tests/workbook/workbook_test_suite.hpp
+++ b/tests/workbook/workbook_test_suite.cpp
@@ -21,8 +21,6 @@
 // @license: http://www.opensource.org/licenses/mit-license.php
 // @author: see AUTHORS file
 
-#pragma once
-
 #include <algorithm>
 #include <iostream>
 
@@ -31,6 +29,14 @@
 #include <helpers/temporary_file.hpp>
 #include <helpers/test_suite.hpp>
 
+#include <xlnt/cell/cell.hpp>
+#include <xlnt/styles/format.hpp>
+#include <xlnt/styles/style.hpp>
+#include <xlnt/workbook/workbook.hpp>
+#include <xlnt/workbook/worksheet_iterator.hpp>
+#include <xlnt/worksheet/range.hpp>
+#include <xlnt/worksheet/worksheet.hpp>
+
 class workbook_test_suite : public test_suite
 {
 public:
@@ -461,3 +467,4 @@ public:
         xlnt_assert_equals(wb_path, wb_load5);
     }
 };
+static workbook_test_suite x;
\ No newline at end of file
diff --git a/tests/worksheet/page_setup_test_suite.hpp b/tests/worksheet/page_setup_test_suite.cpp
similarity index 96%
rename from tests/worksheet/page_setup_test_suite.hpp
rename to tests/worksheet/page_setup_test_suite.cpp
index d2572225..1d809c54 100644
--- a/tests/worksheet/page_setup_test_suite.hpp
+++ b/tests/worksheet/page_setup_test_suite.cpp
@@ -21,12 +21,10 @@
 // @license: http://www.opensource.org/licenses/mit-license.php
 // @author: see AUTHORS file
 
-#pragma once
-
 #include <iostream>
 
 #include <helpers/test_suite.hpp>
-#include <xlnt/xlnt.hpp>
+#include <xlnt/worksheet/page_setup.hpp>
 
 class page_setup_test_suite : public test_suite
 {
@@ -61,3 +59,4 @@ public:
         xlnt_assert(ps.fit_to_width());
     }
 };
+static page_setup_test_suite x;
\ No newline at end of file
diff --git a/tests/worksheet/range_test_suite.hpp b/tests/worksheet/range_test_suite.cpp
similarity index 96%
rename from tests/worksheet/range_test_suite.hpp
rename to tests/worksheet/range_test_suite.cpp
index f0ba4d80..98012289 100644
--- a/tests/worksheet/range_test_suite.hpp
+++ b/tests/worksheet/range_test_suite.cpp
@@ -21,13 +21,15 @@
 // @license: http://www.opensource.org/licenses/mit-license.php
 // @author: see AUTHORS file
 
-#pragma once
-
 #include <iostream>
 
+
 #include <helpers/test_suite.hpp>
+#include <xlnt/cell/cell.hpp>
+#include <xlnt/styles/font.hpp>
 #include <xlnt/workbook/workbook.hpp>
 #include <xlnt/worksheet/header_footer.hpp>
+#include <xlnt/worksheet/range.hpp>
 #include <xlnt/worksheet/worksheet.hpp>
 
 class range_test_suite : public test_suite
@@ -83,3 +85,4 @@ public:
         xlnt_assert_equals(ws.calculate_dimension(), xlnt::range_reference(1, 1, 1, 3));
     }
 };
+static range_test_suite x;
\ No newline at end of file
diff --git a/tests/worksheet/worksheet_test_suite.hpp b/tests/worksheet/worksheet_test_suite.cpp
similarity index 99%
rename from tests/worksheet/worksheet_test_suite.hpp
rename to tests/worksheet/worksheet_test_suite.cpp
index b88ce223..84fa2693 100644
--- a/tests/worksheet/worksheet_test_suite.hpp
+++ b/tests/worksheet/worksheet_test_suite.cpp
@@ -21,11 +21,15 @@
 // @license: http://www.opensource.org/licenses/mit-license.php
 // @author: see AUTHORS file
 
-#pragma once
-
 #include <iostream>
 
+#include <xlnt/cell/cell.hpp>
+#include <xlnt/cell/hyperlink.hpp>
 #include <xlnt/workbook/workbook.hpp>
+#include <xlnt/worksheet/column_properties.hpp>
+#include <xlnt/worksheet/row_properties.hpp>
+#include <xlnt/worksheet/range.hpp>
+#include <xlnt/worksheet/worksheet.hpp>
 #include <xlnt/worksheet/header_footer.hpp>
 #include <xlnt/worksheet/worksheet.hpp>
 #include <helpers/test_suite.hpp>
@@ -1296,3 +1300,4 @@ public:
         xlnt_assert(ws2_title == ws2.title());
     }
 };
+static worksheet_test_suite x;
\ No newline at end of file