diff --git a/crates/cli/.gitignore b/crates/cli/.gitignore
new file mode 100644
index 0000000..301bfb4
--- /dev/null
+++ b/crates/cli/.gitignore
@@ -0,0 +1 @@
+Superfile.hcl
\ No newline at end of file
diff --git a/crates/cli/src/config.rs b/crates/cli/src/config.rs
index 991ab1e..aafa5ae 100644
--- a/crates/cli/src/config.rs
+++ b/crates/cli/src/config.rs
@@ -24,3 +24,35 @@ pub fn verify_if_config_file_is_present() -> Result<(String, String), Error> {
     let config = std::fs::read_to_string(current_dir.join(SUPERFILE_TOML))?;
     return Ok((config, String::from("toml")));
 }
+
+#[cfg(test)]
+pub mod tests {
+    use super::*;
+
+    pub const CONFIG_EXAMPLE: &str = r#"
+    project = "demo"
+
+    service "demo" {
+      type = "exec"
+      command = "ping $GITHUB_DOMAIN"
+      working_dir = "/tmp"
+      description = "Ping Service Example"
+      depends_on = []
+      env = {
+        "GITHUB_DOMAIN" = "github.com"
+      }
+      stdout = "/tmp/demo-stdout.log"
+      stderr = "/tmp/demo-stderr.log"
+    }    
+    "#;
+
+    #[test]
+    fn test_verify_if_config_file_is_present() {
+        // create a default config file
+        let current_dir = std::env::current_dir().unwrap();
+        let config_file = current_dir.join(SUPERFILE);
+        std::fs::write(config_file, CONFIG_EXAMPLE).unwrap();
+        let result = verify_if_config_file_is_present();
+        assert!(result.is_ok());
+    }
+}
diff --git a/crates/util/src/lib.rs b/crates/util/src/lib.rs
index bd79219..663988d 100644
--- a/crates/util/src/lib.rs
+++ b/crates/util/src/lib.rs
@@ -31,3 +31,21 @@ pub fn read_lines(path: &str) -> Result<Vec<String>, Error> {
     }
     Ok(lines)
 }
+
+#[cfg(test)]
+pub mod tests {
+    #[test]
+    fn convert_dir_path_to_absolute_path() {
+        let current_dir = std::env::current_dir().unwrap();
+        let current_dir = current_dir.to_str().unwrap();
+        let dir = "./test";
+        let dir = super::convert_dir_path_to_absolute_path(dir, current_dir).unwrap();
+        assert_eq!(dir, format!("{}/test", current_dir));
+    }
+
+    #[test]
+    fn read_lines() {
+        let lines = super::read_lines("Cargo.toml").unwrap();
+        assert_eq!(lines[0], "[package]");
+    }
+}