diff --git a/test/unit/utACImportExport.cpp b/test/unit/utACImportExport.cpp
index 4bac8bd3b..8a685056d 100644
--- a/test/unit/utACImportExport.cpp
+++ b/test/unit/utACImportExport.cpp
@@ -50,6 +50,63 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 using namespace Assimp;
 
 
+TEST(utACImportExport, importClosedLine) {
+    Assimp::Importer importer;
+    const aiScene *scene = importer.ReadFile(ASSIMP_TEST_MODELS_DIR "/AC/closedLine.ac", aiProcess_ValidateDataStructure);
+    ASSERT_NE(nullptr, scene);
+}
+
+
+TEST(utACImportExport, importNoSurfaces) {
+    Assimp::Importer importer;
+    const aiScene *scene = importer.ReadFile(ASSIMP_TEST_MODELS_DIR "/AC/nosurfaces.ac", aiProcess_ValidateDataStructure);
+    ASSERT_NE(nullptr, scene);
+}
+
+
+TEST(utACImportExport, importOpenLine) {
+    Assimp::Importer importer;
+    const aiScene *scene = importer.ReadFile(ASSIMP_TEST_MODELS_DIR "/AC/openLine.ac", aiProcess_ValidateDataStructure);
+    ASSERT_NE(nullptr, scene);
+}
+
+
+TEST(utACImportExport, importSampleSubdiv) {
+    Assimp::Importer importer;
+    const aiScene *scene = importer.ReadFile(ASSIMP_TEST_MODELS_DIR "/AC/sample_subdiv.ac", aiProcess_ValidateDataStructure);
+    ASSERT_NE(nullptr, scene);
+}
+
+
+TEST(utACImportExport, importSphereWithLight) {
+    Assimp::Importer importer;
+    const aiScene *scene = importer.ReadFile(ASSIMP_TEST_MODELS_DIR "/AC/SphereWithLight.ac", aiProcess_ValidateDataStructure);
+    ASSERT_NE(nullptr, scene);
+}
+
+
+TEST(utACImportExport, importSphereWithLightUTF16) {
+    Assimp::Importer importer;
+    const aiScene *scene = importer.ReadFile(ASSIMP_TEST_MODELS_DIR "/AC/SphereWithLight_UTF16LE.ac", aiProcess_ValidateDataStructure);
+    // FIXME: this is probably wrong, loading the file should succeed
+    ASSERT_EQ(nullptr, scene);
+}
+
+
+TEST(utACImportExport, importSphereWithLightUTF8BOM) {
+    Assimp::Importer importer;
+    const aiScene *scene = importer.ReadFile(ASSIMP_TEST_MODELS_DIR "/AC/SphereWithLight_UTF8BOM.ac", aiProcess_ValidateDataStructure);
+    ASSERT_NE(nullptr, scene);
+}
+
+
+TEST(utACImportExport, importSphereWithLightUvScaling4X) {
+    Assimp::Importer importer;
+    const aiScene *scene = importer.ReadFile(ASSIMP_TEST_MODELS_DIR "/AC/SphereWithLightUvScaling4X.ac", aiProcess_ValidateDataStructure);
+    ASSERT_NE(nullptr, scene);
+}
+
+
 TEST(utACImportExport, importWuson) {
     Assimp::Importer importer;
     const aiScene *scene = importer.ReadFile(ASSIMP_TEST_MODELS_DIR "/AC/Wuson.ac", aiProcess_ValidateDataStructure);
@@ -57,3 +114,9 @@ TEST(utACImportExport, importWuson) {
 }
 
 
+TEST(utACImportExport, testFormatDetection) {
+    Assimp::Importer importer;
+    const aiScene *scene = importer.ReadFile(ASSIMP_TEST_MODELS_DIR "/AC/TestFormatDetection", aiProcess_ValidateDataStructure);
+    ASSERT_NE(nullptr, scene);
+}
+