diff --git a/src/engine/docker_engine.rs b/src/engine/docker_engine.rs
index a381d03..dc92dd9 100644
--- a/src/engine/docker_engine.rs
+++ b/src/engine/docker_engine.rs
@@ -22,9 +22,10 @@ use crate::Application;
 
 /// # Docker execution engine
 /// Implementation of an execution engine that uses Docker as a backend.
+#[derive(Debug)]
 pub struct DockerEngine {
     /// The Docker driver.
-    docker: Docker,
+    pub docker: Docker,
     /// The application config, see [Config](Config)
     config: ApplicationConfig,
 }
diff --git a/src/lib.rs b/src/lib.rs
new file mode 100644
index 0000000..8db8f0b
--- /dev/null
+++ b/src/lib.rs
@@ -0,0 +1,32 @@
+pub mod application;
+mod config;
+pub mod engine;
+mod grpc_server;
+
+use log::{error, info};
+use std::error;
+
+use crate::application::Application;
+pub use crate::engine::docker_engine::DockerEngine;
+
+pub async fn run_server() -> Result<(), Box<dyn error::Error>> {
+    // Start the application
+    env_logger::builder()
+        .filter(None, log::LevelFilter::Info)
+        .parse_default_env()
+        .init();
+
+    info!(
+        "Starting {} version {}",
+        env!("CARGO_PKG_NAME"),
+        env!("CARGO_PKG_VERSION")
+    );
+
+    // Init the Docker engine
+    let engine = DockerEngine::new();
+
+    grpc_server::start_server(engine).await.map_err(|e| {
+        error!("Failed to start gRPC server: {}", e);
+        e
+    })
+}
diff --git a/src/main.rs b/src/main.rs
index e8fa614..2af7581 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -1,33 +1,8 @@
-mod application;
-mod config;
-mod engine;
-mod grpc_server;
+use pomegranate::run_server;
 
-use log::{error, info};
 use std::error;
 
-use crate::application::Application;
-use crate::engine::docker_engine::DockerEngine;
-
 #[tokio::main]
 async fn main() -> Result<(), Box<dyn error::Error>> {
-    // Start the application
-    env_logger::builder()
-        .filter(None, log::LevelFilter::Info)
-        .parse_default_env()
-        .init();
-
-    info!(
-        "Starting {} version {}",
-        env!("CARGO_PKG_NAME"),
-        env!("CARGO_PKG_VERSION")
-    );
-
-    // Init the Docker engine
-    let engine = DockerEngine::new();
-
-    grpc_server::start_server(engine).await.map_err(|e| {
-        error!("Failed to start gRPC server: {}", e);
-        e
-    })
+    run_server().await
 }
diff --git a/tests/integration_tests.rs b/tests/integration_tests.rs
new file mode 100644
index 0000000..1216402
--- /dev/null
+++ b/tests/integration_tests.rs
@@ -0,0 +1,38 @@
+use bollard::container::ListContainersOptions;
+use std::collections::HashMap;
+use std::default::Default;
+
+extern crate pomegranate;
+
+async fn list_containers() {
+    let mut filters = HashMap::new();
+    filters.insert("health", vec!["unhealthy"]);
+
+    let options = Some(ListContainersOptions {
+        all: true,
+        filters,
+        ..Default::default()
+    });
+
+    let docker_engine = pomegranate::DockerEngine::new();
+    println!("{:#?}", docker_engine.docker.list_containers(options).await);
+}
+
+#[test]
+fn test_add() {
+    let app = pomegranate::application::Application {
+        application_id: "application".to_string(),
+        project_id: "project".to_string(),
+        image_name: "nginx".to_string(),
+        image_tag: String::from("latest"),
+        ..Default::default()
+    };
+
+    
+
+    let docker_engine = pomegranate::DockerEngine::new();
+    pomegranate::engine::Engine::start_application(&docker_engine, &app);
+    list_containers();
+    //println!(" Test : {:?}", docker_engine.docker.inspect_container());
+    assert_eq!(list_containers(), "");
+}