diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index a1f389c0c..9ee0d8a18 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -266,6 +266,7 @@ add_library(poly2tri STATIC
 target_include_directories(poly2tri PUBLIC ${COMMON_INCLUDES})
 
 set(UI_TEST_SOURCES
+    slic3r.cpp
     ${GUI_TESTDIR}/testableframe.cpp
     ${GUI_TESTDIR}/test_harness_gui.cpp
     ${GUI_TESTDIR}/test_field_checkbox.cpp
@@ -281,6 +282,7 @@ set(UI_TEST_SOURCES
     ${GUI_TESTDIR}/test_preset.cpp
     ${GUI_TESTDIR}/test_preset_chooser.cpp
     ${GUI_TESTDIR}/test_misc_ui.cpp
+    ${GUI_TESTDIR}/test_cli.cpp
 )
 
 set(SLIC3R_TEST_SOURCES
@@ -450,6 +452,7 @@ IF(wxWidgets_FOUND AND OPENGL_FOUND AND Enable_GUI)
         target_link_libraries(gui_test PUBLIC slic3r_gui libslic3r Catch ${wxWidgets_LIBRARIES} ${LIBSLIC3R_DEPENDS} ${OPENGL_LIBRARIES})
         target_include_directories(gui_test PUBLIC cxx_std_14 ${SLIC3R_GUI_INCLUDES} )
         target_include_directories(gui_test PUBLIC ${TESTDIR})
+        target_compile_options(gui_test PUBLIC -DBUILD_TEST)
     endif()
     if (WIN32)
         target_link_libraries(slic3r uxtheme)    
diff --git a/src/slic3r.cpp b/src/slic3r.cpp
index 880b9fb51..650e6ad02 100644
--- a/src/slic3r.cpp
+++ b/src/slic3r.cpp
@@ -25,10 +25,12 @@
 
 using namespace Slic3r;
 
+#ifndef BUILD_TEST
 int
 main(int argc, char **argv) {
     return CLI().run(argc, argv);
 }
+#endif // BUILD_TEST
 
 int CLI::run(int argc, char **argv) {
     // Convert arguments to UTF-8 (needed on Windows).
diff --git a/src/test/GUI/test_cli.cpp b/src/test/GUI/test_cli.cpp
new file mode 100644
index 000000000..25621c3e4
--- /dev/null
+++ b/src/test/GUI/test_cli.cpp
@@ -0,0 +1,193 @@
+#include <catch.hpp>
+#include <fstream>
+#include <cstdio>
+
+#include "test_options.hpp"
+
+#include "slic3r.hpp"
+
+using namespace Slic3r;
+using namespace std::string_literals;
+
+bool file_exists(const std::string& name, const std::string& ext) {
+    std::string filename {""};
+    filename.append(name);
+    filename.append(".");
+    filename.append(ext);
+
+    std::ifstream f(testfile(filename));
+    bool result {f.good()};
+    f.close();
+
+    return result;
+}
+
+void clean_file(const std::string& name, const std::string& ext, bool glob = false) {
+    std::string filename {""};
+    filename.append(name);
+    filename.append(".");
+    filename.append(ext);
+
+    std::remove(testfile(filename).c_str());
+}
+char** to_cstr_array(std::vector<std::string> in, char** argv) {
+    int i = 0;
+    for (auto& str : in) {
+        argv[i] = new char[str.size()];
+        strcpy(argv[i], str.c_str()); 
+        i++;
+    }
+    return argv;
+}
+
+void clean_array(size_t argc, char** argv) {
+    for (size_t i = 0; i < argc; ++i) {
+        delete[] argv[i];
+    }
+}
+
+SCENARIO( "CLI Export Arguments", "[!mayfail]") {
+    char* args_cli[20];
+    std::vector<std::string> in_args;
+    in_args.reserve(20);
+    in_args.emplace_back("gui_test"s);
+    in_args.emplace_back(testfile("test_cli/20mmbox.stl"s));
+
+    GIVEN( "Default configuration and a simple 3D model" ) {
+        WHEN ( "[ ACTION ] is export-gcode with long option") { 
+            in_args.emplace(in_args.cend()-1, "--export-gcode");
+            CLI().run(in_args.size(), to_cstr_array(in_args, args_cli));
+            THEN ("GCode file is created.") {
+                REQUIRE(file_exists("test_cli/20mmbox"s, "gcode"s));
+            }
+            clean_array(in_args.size(), args_cli);
+            clean_file("test_cli/20mmbox", "gcode");
+        }
+        WHEN ( "[ ACTION ] is export-gcode with short option") { 
+            in_args.emplace(in_args.cend()-1, "-g");
+            CLI().run(in_args.size(), to_cstr_array(in_args, args_cli));
+            THEN ("GCode file is created.") {
+                REQUIRE(file_exists("test_cli/20mmbox"s, "gcode"s));
+            }
+            clean_array(in_args.size(), args_cli);
+            clean_file("test_cli/20mmbox", "gcode");
+        }
+        WHEN ( "[ ACTION ] is export-obj") { 
+            in_args.emplace(in_args.cend()-1, "--export-obj");
+            CLI().run(in_args.size(), to_cstr_array(in_args, args_cli));
+            THEN ("OBJ file is created.") {
+                REQUIRE(file_exists("test_cli/20mmbox"s, "obj"s));
+            }
+            clean_array(in_args.size(), args_cli);
+            clean_file("test_cli/20mmbox", "obj");
+        }
+        WHEN ( "[ ACTION ] is export-pov") { 
+            in_args.emplace(in_args.cend()-1, "--export-pov");
+            CLI().run(in_args.size(), to_cstr_array(in_args, args_cli));
+            THEN ("POV file is created.") {
+                REQUIRE(file_exists("test_cli/20mmbox", "pov"));
+            }
+            clean_array(in_args.size(), args_cli);
+            clean_file("test_cli/20mmbox", "pov");
+        }
+        WHEN ( "[ ACTION ] is export-amf") { 
+            in_args.emplace(in_args.cend()-1, "--export-amf");
+            CLI().run(in_args.size(), to_cstr_array(in_args, args_cli));
+            THEN ("AMF file is created.") {
+                REQUIRE(file_exists("test_cli/20mmbox", "amf"));
+            }
+            clean_array(in_args.size(), args_cli);
+            clean_file("test_cli/20mmbox", "amf");
+        }
+        WHEN ( "[ ACTION ] is export-3mf") { 
+            in_args.emplace(in_args.cend()-1, "--export-3mf");
+            CLI().run(in_args.size(), to_cstr_array(in_args, args_cli));
+            THEN ("3MF file is created.") {
+                REQUIRE(file_exists("test_cli/20mmbox", "3mf"));
+            }
+            clean_array(in_args.size(), args_cli);
+            clean_file("test_cli/20mmbox", "3mf");
+        }
+        WHEN ( "[ ACTION ] is export-svg") { 
+            in_args.emplace(in_args.cend()-1, "--export-svg");
+            CLI().run(in_args.size(), to_cstr_array(in_args, args_cli));
+            THEN ("SVG file is created.") {
+                REQUIRE(file_exists("test_cli/20mmbox", "svg"));
+            }
+            clean_array(in_args.size(), args_cli);
+            clean_file("test_cli/20mmbox", "svg");
+        }
+        WHEN ( "[ ACTION ] is export-sla-svg") { 
+            in_args.emplace(in_args.cend()-1, "--export-sla-svg");
+            CLI().run(in_args.size(), to_cstr_array(in_args, args_cli));
+            THEN ("SVG file is created.") {
+                REQUIRE(file_exists("test_cli/20mmbox", "svg"));
+            }
+            clean_array(in_args.size(), args_cli);
+            clean_file("test_cli/20mmbox", "svg");
+        }
+        WHEN ( "[ ACTION ] is sla") { 
+            in_args.emplace(in_args.cend()-1, "--sla");
+            CLI().run(in_args.size(), to_cstr_array(in_args, args_cli));
+            THEN ("SVG file is created.") {
+                REQUIRE(file_exists("test_cli/20mmbox", "svg"));
+            }
+            clean_array(in_args.size(), args_cli);
+            clean_file("test_cli/20mmbox", "svg", true);
+        }
+        WHEN ( "[ ACTION ] is sla and --output-file-format is output_[padded_layer_num].svg") { 
+            in_args.emplace(in_args.cend()-1, "--sla");
+            in_args.emplace(in_args.cend()-1, "--output-file-format output_[padded_layer_num].svg");
+            in_args.emplace(in_args.cend()-1, "--layer-height 5");
+            CLI().run(in_args.size(), to_cstr_array(in_args, args_cli));
+            THEN ("SVG files are created.") {
+                REQUIRE(file_exists("test_cli/output_0", "svg"));
+                REQUIRE(file_exists("test_cli/output_1", "svg"));
+                REQUIRE(file_exists("test_cli/output_2", "svg"));
+                REQUIRE(file_exists("test_cli/output_3", "svg"));
+                REQUIRE(file_exists("test_cli/output_4", "svg"));
+            }
+            clean_array(in_args.size(), args_cli);
+            clean_file("test_cli/output_0", "svg", true);
+            clean_file("test_cli/output_1", "svg", true);
+            clean_file("test_cli/output_2", "svg", true);
+            clean_file("test_cli/output_3", "svg", true);
+            clean_file("test_cli/output_4", "svg", true);
+        }
+        WHEN ( "[ ACTION ] is save") { 
+            in_args.emplace(in_args.cend()-1, "--save");
+            in_args.emplace(in_args.cend()-1, testfile("cfg.ini"));
+            CLI().run(in_args.size(), to_cstr_array(in_args, args_cli));
+            THEN ("Configuration file is created.") {
+                REQUIRE(file_exists("cfg", "ini"));
+            }
+            clean_array(in_args.size(), args_cli);
+            clean_file("cfg", "ini");
+        }
+        WHEN ( "[ ACTION ] is export-stl and --output option is specified") { 
+            in_args.emplace(in_args.cend()-1, "--export-stl");
+            in_args.emplace(in_args.cend()-1, "--output");
+            in_args.emplace(in_args.cend()-1, testfile("output.stl"));
+            CLI().run(in_args.size(), to_cstr_array(in_args, args_cli));
+            THEN ("STL file is created.") {
+                REQUIRE(file_exists("output", "stl"));
+            }
+            clean_array(in_args.size(), args_cli);
+            clean_file("output", "stl");
+        }
+
+    }
+}
+
+SCENARIO("CLI Transform arguments", "[!shouldfail]") {
+    char* args_cli[20];
+    std::vector<std::string> in_args;
+    in_args.reserve(20);
+    in_args.emplace_back("gui_test"s);
+    in_args.emplace_back(testfile("test_cli/20mmbox.stl"s));
+    WHEN("Tests are implemented for CLI model transform") {
+        THEN ("Tests should not fail :D") {
+            REQUIRE(false); 
+        }
+    }
+}
diff --git a/src/test/inputs/test_cli/20mmbox.stl b/src/test/inputs/test_cli/20mmbox.stl
new file mode 100644
index 000000000..c7386d4af
--- /dev/null
+++ b/src/test/inputs/test_cli/20mmbox.stl
@@ -0,0 +1,86 @@
+solid Default
+  facet normal 0.000000e+00 0.000000e+00 -1.000000e+00
+    outer loop
+      vertex 1.000000e+01 1.000000e+01 0.000000e+00
+      vertex -1.000000e+01 -1.000000e+01 0.000000e+00
+      vertex -1.000000e+01 1.000000e+01 0.000000e+00
+    endloop
+  endfacet
+  facet normal 0.000000e+00 0.000000e+00 -1.000000e+00
+    outer loop
+      vertex -1.000000e+01 -1.000000e+01 0.000000e+00
+      vertex 1.000000e+01 1.000000e+01 0.000000e+00
+      vertex 1.000000e+01 -1.000000e+01 0.000000e+00
+    endloop
+  endfacet
+  facet normal 0.000000e+00 0.000000e+00 1.000000e+00
+    outer loop
+      vertex 1.000000e+01 -1.000000e+01 1.000000e+01
+      vertex -1.000000e+01 1.000000e+01 1.000000e+01
+      vertex -1.000000e+01 -1.000000e+01 1.000000e+01
+    endloop
+  endfacet
+  facet normal 0.000000e+00 0.000000e+00 1.000000e+00
+    outer loop
+      vertex -1.000000e+01 1.000000e+01 1.000000e+01
+      vertex 1.000000e+01 -1.000000e+01 1.000000e+01
+      vertex 1.000000e+01 1.000000e+01 1.000000e+01
+    endloop
+  endfacet
+  facet normal 1.000000e+00 0.000000e+00 0.000000e+00
+    outer loop
+      vertex 1.000000e+01 1.000000e+01 0.000000e+00
+      vertex 1.000000e+01 -1.000000e+01 1.000000e+01
+      vertex 1.000000e+01 -1.000000e+01 0.000000e+00
+    endloop
+  endfacet
+  facet normal 1.000000e+00 0.000000e+00 0.000000e+00
+    outer loop
+      vertex 1.000000e+01 -1.000000e+01 1.000000e+01
+      vertex 1.000000e+01 1.000000e+01 0.000000e+00
+      vertex 1.000000e+01 1.000000e+01 1.000000e+01
+    endloop
+  endfacet
+  facet normal -0.000000e+00 -1.000000e+00 -0.000000e+00
+    outer loop
+      vertex 1.000000e+01 -1.000000e+01 1.000000e+01
+      vertex -1.000000e+01 -1.000000e+01 0.000000e+00
+      vertex 1.000000e+01 -1.000000e+01 0.000000e+00
+    endloop
+  endfacet
+  facet normal -0.000000e+00 -1.000000e+00 -0.000000e+00
+    outer loop
+      vertex -1.000000e+01 -1.000000e+01 0.000000e+00
+      vertex 1.000000e+01 -1.000000e+01 1.000000e+01
+      vertex -1.000000e+01 -1.000000e+01 1.000000e+01
+    endloop
+  endfacet
+  facet normal -1.000000e+00 0.000000e+00 0.000000e+00
+    outer loop
+      vertex -1.000000e+01 1.000000e+01 1.000000e+01
+      vertex -1.000000e+01 -1.000000e+01 0.000000e+00
+      vertex -1.000000e+01 -1.000000e+01 1.000000e+01
+    endloop
+  endfacet
+  facet normal -1.000000e+00 0.000000e+00 0.000000e+00
+    outer loop
+      vertex -1.000000e+01 -1.000000e+01 0.000000e+00
+      vertex -1.000000e+01 1.000000e+01 1.000000e+01
+      vertex -1.000000e+01 1.000000e+01 0.000000e+00
+    endloop
+  endfacet
+  facet normal 0.000000e+00 1.000000e+00 0.000000e+00
+    outer loop
+      vertex -1.000000e+01 1.000000e+01 1.000000e+01
+      vertex 1.000000e+01 1.000000e+01 0.000000e+00
+      vertex -1.000000e+01 1.000000e+01 0.000000e+00
+    endloop
+  endfacet
+  facet normal 0.000000e+00 1.000000e+00 0.000000e+00
+    outer loop
+      vertex 1.000000e+01 1.000000e+01 0.000000e+00
+      vertex -1.000000e+01 1.000000e+01 1.000000e+01
+      vertex 1.000000e+01 1.000000e+01 1.000000e+01
+    endloop
+  endfacet
+endsolid Default
diff --git a/src/test/test_options.hpp.in b/src/test/test_options.hpp.in
index 201961cc4..c02f720a3 100644
--- a/src/test/test_options.hpp.in
+++ b/src/test/test_options.hpp.in
@@ -1,6 +1,14 @@
 #ifndef TEST_OPTIONS_HPP
+#include <string>
 
 /// Directory path, passed in from the outside, for the path to the test inputs dir.
 constexpr auto* testfile_dir {"@TESTFILE_DIR@"};
 
+inline std::string testfile(std::string filename) {
+    std::string result;
+    result.append(testfile_dir);
+    result.append(filename);
+    return result;
+}
+
 #endif // TEST_OPTIONS_HPP