diff --git a/lib/src/subtitle.cpp b/lib/src/subtitle.cpp
index bbcf17c..aee7e3b 100644
--- a/lib/src/subtitle.cpp
+++ b/lib/src/subtitle.cpp
@@ -30,12 +30,16 @@ subtitle::subtitle(const filesystem::path &sp, RW rw) {
         if (sp.empty()) {
             this->file_path = sp;
         } else {
+            if(!filesystem::exists(sp.parent_path())) {
+                log::debug("Directory ({}) doesn't exist - creating it", sp.parent_path());
+                filesystem::create_directory(sp.parent_path());
+            }
             this->file_path = weakly_canonical(sp);
             this->filename = new string(this->file_path.filename().generic_string());
             this->subtitle_file = new fstream(this->file_path.c_str(),
                                               fstream::ate | fstream::out | fstream::trunc);
+            
         }
-
     }
 }
 
diff --git a/lib/src/video.cpp b/lib/src/video.cpp
index a317cff..d5ce290 100644
--- a/lib/src/video.cpp
+++ b/lib/src/video.cpp
@@ -230,7 +230,7 @@ frame_header *video::read_steg_header(AVFrame *fr) {
             if (regex_match(found_header, frame_header::header_regex)) {
                 break;
             } else if (count == 2) {
-                log::info("Found frame_header '{}' should be |L|", found_header);
+                log::debug("Found frame_header '{}' should be |L|", found_header);
                 assert(found_header == "|L|");
             }
 
@@ -968,7 +968,7 @@ bool video::has_steg_file() {
                     break;
                 }
                 if (ret >= 0) {
-                    log::info("Finding a frame_header from frame: {}, {}", this->read_x, this->read_y);
+                    log::debug("Finding a frame_header from frame: {}, {}", this->read_x, this->read_y);
                     frame_header *h = this->read_steg_header(picture);
                     if (h != nullptr) {
                         log::debug("Setting frame_header: {}", h->to_string());
diff --git a/lib/test/src/TestSubtitleFile.cpp b/lib/test/src/TestSubtitleFile.cpp
index 7f65596..e14db18 100644
--- a/lib/test/src/TestSubtitleFile.cpp
+++ b/lib/test/src/TestSubtitleFile.cpp
@@ -100,8 +100,10 @@ TEST_CASE("Subtitle file can write lines out") {
     string write_file("output/gen_subs.srt");
     subtitle *write_sub = new subtitle(write_file, RW::WRITE);
 
-    write_sub->write_line(input);
-    write_sub->write_line(input2);
+    int ret = write_sub->write_line(input);
+    REQUIRE(ret == 0);
+    ret = write_sub->write_line(input2);
+    REQUIRE(ret == 0);
 
     std::ifstream output(write_file);
 
diff --git a/lib/test/src/TestVideoFile.cpp b/lib/test/src/TestVideoFile.cpp
index 5f036cc..8e88da9 100644
--- a/lib/test/src/TestVideoFile.cpp
+++ b/lib/test/src/TestVideoFile.cpp
@@ -24,7 +24,7 @@ void compare_files(const std::string &f, const std::string& s) {
             log::error("O: {}", second_line);
         }
 
-        assert(first_line == second_line);
+        REQUIRE(first_line == second_line);
     }
 
     first->clear();
@@ -43,7 +43,7 @@ void input_equals_output(string i_video, const string& o_video, string i_subtitl
     video *o_v = new video(o_video, o_sub);
 
     i_v->write_subtitle_file();
-    assert(o_v->has_steg_file());
+    REQUIRE(o_v->has_steg_file());
     o_v->read_subtitle_file();
 
     compare_files(i_subtitle, o_subtitle);