test our tests

src/test/libslic3r/test_test_data.cpp

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+#include <catch.hpp>
+#include <sstream>
+
+#include "test_data.hpp"
+
+using namespace Slic3r::Test;
+
+SCENARIO("init_print functionality") {
+    GIVEN("A default config") {
+        config_ptr config {Slic3r::Config::new_from_defaults()};
+        std::stringstream gcode;
+        WHEN("init_print is called with a single mesh.") {
+            Slic3r::Model model;
+            auto print = init_print({TestMesh::cube_20x20x20}, model, config, true); 
+            gcode.clear();
+            THEN("One mesh/printobject is in the resulting Print object.") {
+                REQUIRE(print->objects.size() == 1);
+            }
+            THEN("print->process() doesn't crash.") {
+                REQUIRE_NOTHROW(print->process());
+            }
+            THEN("Export gcode functions outputs text.") {
+                print->process();
+                print->export_gcode(gcode, true);
+                REQUIRE(gcode.str().size() > 0);
+            }
+        }
+    }
+}