diff --git a/rider-editor/src/app/app_state.rs b/rider-editor/src/app/app_state.rs
index d28d74d..8a7c832 100644
--- a/rider-editor/src/app/app_state.rs
+++ b/rider-editor/src/app/app_state.rs
@@ -382,4 +382,17 @@ mod tests {
         state.set_open_file_modal(Some(modal));
         assert_eq!(state.open_settings(&mut renderer), Ok(()));
     }
+
+    #[test]
+    fn must_open_directory() {
+        assert_eq!(
+            std::fs::create_dir_all("/tmp/must_open_directory").is_ok(),
+            true
+        );
+
+        let config = support::build_config();
+        let mut renderer = support::SimpleRendererMock::new(config.clone());
+        let mut state = AppState::new(Arc::clone(&config));
+        state.open_directory("/must_open_directory".to_owned(), &mut renderer);
+    }
 }
diff --git a/rider-generator/src/config.rs b/rider-generator/src/config.rs
index 905fbe7..99b4eb8 100644
--- a/rider-generator/src/config.rs
+++ b/rider-generator/src/config.rs
@@ -59,8 +59,8 @@ mod tests {
 
     #[test]
     fn assert_create_fonts() {
-        let uniq = Uuid::new_v4();
-        let test_path = join("/tmp/rider-tests".to_owned(), uniq.to_string());
+        let unique = Uuid::new_v4();
+        let test_path = join("/tmp/rider-tests".to_owned(), unique.to_string());
         create_dir_all(test_path.clone()).unwrap();
         let directories = Directories::new(Some(test_path.clone()), None);
         assert_eq!(create(&directories).is_ok(), true);
@@ -72,8 +72,8 @@ mod tests {
 
     #[test]
     fn assert_create_log() {
-        let uniq = Uuid::new_v4();
-        let test_path = join("/tmp/rider-tests".to_owned(), uniq.to_string());
+        let unique = Uuid::new_v4();
+        let test_path = join("/tmp/rider-tests".to_owned(), unique.to_string());
         create_dir_all(test_path.clone()).unwrap();
         let directories = Directories::new(Some(test_path.clone()), None);
         assert_eq!(create(&directories).is_ok(), true);
@@ -85,8 +85,8 @@ mod tests {
 
     #[test]
     fn assert_create_themes() {
-        let uniq = Uuid::new_v4();
-        let test_path = join("/tmp/rider-tests".to_owned(), uniq.to_string());
+        let unique = Uuid::new_v4();
+        let test_path = join("/tmp/rider-tests".to_owned(), unique.to_string());
         create_dir_all(test_path.clone()).unwrap();
         let directories = Directories::new(Some(test_path.clone()), None);
         assert_eq!(
diff --git a/rider-generator/src/main.rs b/rider-generator/src/main.rs
index a770793..d3d1944 100644
--- a/rider-generator/src/main.rs
+++ b/rider-generator/src/main.rs
@@ -16,8 +16,13 @@ pub mod images;
 pub mod themes;
 pub mod write_bytes_to;
 
+#[cfg_attr(tarpaulin, skip)]
 fn main() -> std::io::Result<()> {
-    let directories = Directories::new(None, None);
+    run_generator(None, None)
+}
+
+fn run_generator(config_dir: Option<String>, project_dir: Option<String>) -> std::io::Result<()> {
+    let directories = Directories::new(config_dir, project_dir);
     config::create(&directories)?;
     themes::create(&directories)?;
     images::create(&directories)?;
@@ -45,8 +50,8 @@ mod tests {
 
     #[test]
     fn assert_main() {
-        let uniq = Uuid::new_v4();
-        let joined = join("/tmp/rider-tests".to_owned(), uniq.to_string());
+        let unique = Uuid::new_v4();
+        let joined = join("/tmp/rider-tests".to_owned(), unique.to_string());
         let test_path = joined.as_str();
         remove_dir_all(joined.clone()).unwrap_or_else(|_| ());
         create_dir_all(test_path.to_owned()).unwrap();
@@ -58,7 +63,10 @@ mod tests {
             !exists(&test_path.to_owned(), ".rider"),
             "rider config dir should not exists before generator run"
         );
-        debug_assert!(main().is_ok(), "generator should not failed");
+        debug_assert!(
+            run_generator(Some(test_path.to_owned()), Some(test_path.to_owned())).is_ok(),
+            "generator should not failed"
+        );
         debug_assert!(
             exists(&test_path.to_owned(), ".rider"),
             "rider config dir should exists after generator run"
@@ -67,8 +75,8 @@ mod tests {
 
     #[test]
     fn assert_fonts_dir() {
-        let uniq = Uuid::new_v4();
-        let joined = join("/tmp/rider-tests".to_owned(), uniq.to_string());
+        let unique = Uuid::new_v4();
+        let joined = join("/tmp/rider-tests".to_owned(), unique.to_string());
 
         remove_dir_all(joined.clone()).unwrap_or_else(|_| ());
         create_dir_all(joined.clone()).unwrap();
@@ -80,7 +88,10 @@ mod tests {
             !exists(&joined, "rider/fonts"),
             "fonts director should not exists before run generator"
         );
-        debug_assert!(main().is_ok(), "generator should not failed");
+        debug_assert!(
+            run_generator(Some(joined.to_owned()), Some(joined.to_owned())).is_ok(),
+            "generator should not failed"
+        );
         debug_assert!(
             exists(&joined, "rider/fonts"),
             "fonts director should exists after run generator"
@@ -89,8 +100,8 @@ mod tests {
 
     #[test]
     fn assert_log_dir() {
-        let uniq = Uuid::new_v4();
-        let joined = join("/tmp/rider-tests".to_owned(), uniq.to_string());
+        let unique = Uuid::new_v4();
+        let joined = join("/tmp/rider-tests".to_owned(), unique.to_string());
 
         remove_dir_all(joined.clone()).unwrap_or_else(|_| ());
         create_dir_all(joined.clone()).unwrap();
@@ -102,7 +113,10 @@ mod tests {
             !exists(&joined, "rider/log"),
             "log should not exists before run generator"
         );
-        debug_assert!(main().is_ok(), "generator should not failed");
+        debug_assert!(
+            run_generator(Some(joined.to_owned()), Some(joined.to_owned())).is_ok(),
+            "generator should not failed"
+        );
         debug_assert!(
             exists(&joined, "rider/log"),
             "log should exists after run generator"
@@ -111,8 +125,8 @@ mod tests {
 
     #[test]
     fn assert_themes_dir() {
-        let uniq = Uuid::new_v4();
-        let joined = join("/tmp/rider-tests".to_owned(), uniq.to_string());
+        let unique = Uuid::new_v4();
+        let joined = join("/tmp/rider-tests".to_owned(), unique.to_string());
 
         remove_dir_all(joined.clone()).unwrap_or_else(|_| ());
         create_dir_all(joined.clone()).unwrap();
@@ -124,7 +138,10 @@ mod tests {
             !exists(&joined, "rider/themes"),
             "themes should not exists before run generator"
         );
-        debug_assert!(main().is_ok(), "generator should not failed");
+        debug_assert!(
+            run_generator(Some(joined.to_owned()), Some(joined.to_owned())).is_ok(),
+            "generator should not failed"
+        );
         debug_assert!(
             exists(&joined, "rider/themes"),
             "themes should exists after run generator"
@@ -133,8 +150,8 @@ mod tests {
 
     #[test]
     fn assert_default_json() {
-        let uniq = Uuid::new_v4();
-        let joined = join("/tmp/rider-tests".to_owned(), uniq.to_string());
+        let unique = Uuid::new_v4();
+        let joined = join("/tmp/rider-tests".to_owned(), unique.to_string());
 
         remove_dir_all(joined.clone()).unwrap_or_else(|_| ());
         create_dir_all(joined.clone()).unwrap();
@@ -146,7 +163,10 @@ mod tests {
             !exists(&joined, "rider/themes/default.json"),
             "default theme should not exists before run generator"
         );
-        debug_assert!(main().is_ok(), "generator should not failed");
+        debug_assert!(
+            run_generator(Some(joined.to_owned()), Some(joined.to_owned())).is_ok(),
+            "generator should not failed"
+        );
         debug_assert!(
             exists(&joined, "rider/themes/default.json"),
             "default theme should exists after run generator"
@@ -155,8 +175,8 @@ mod tests {
 
     #[test]
     fn assert_railscasts_json() {
-        let uniq = Uuid::new_v4();
-        let joined = join("/tmp/rider-tests".to_owned(), uniq.to_string());
+        let unique = Uuid::new_v4();
+        let joined = join("/tmp/rider-tests".to_owned(), unique.to_string());
 
         remove_dir_all(joined.clone()).unwrap_or_else(|_| ());
         create_dir_all(joined.clone()).unwrap();
@@ -168,7 +188,10 @@ mod tests {
             !exists(&joined, "rider/themes/railscasts.json"),
             "railscasts theme should not exists before run generator"
         );
-        debug_assert!(main().is_ok(), "generator should not failed");
+        debug_assert!(
+            run_generator(Some(joined.to_owned()), Some(joined.to_owned())).is_ok(),
+            "generator should not failed"
+        );
         debug_assert!(
             exists(&joined, "rider/themes/railscasts.json"),
             "railscasts theme should exists after run generator"