diff --git a/backend/Dockerfile b/backend/Dockerfile
index 21b9213ed671a9716738a41adb717dccc49e3846..af4eb8b554f5338e1b7f7fca7fc6a9a7598ea9c1 100644
--- a/backend/Dockerfile
+++ b/backend/Dockerfile
@@ -10,11 +10,14 @@ RUN apt-get update && apt-get install -y docker.io
 # Copier les fichiers nécessaires
 COPY requirements.txt .
 
-# Installer les dépendances
+# Installer les dépendances et ajouter pytest
 RUN pip install --no-cache-dir -r requirements.txt
+RUN pip install --no-cache-dir pytest
 
-# Copier le reste du code
-COPY . .
+# Copier le reste du code (y compris les tests)
+COPY . /app
+
+RUN ls -l /app
 
 # Exposer le port sur lequel Flask écoute
 EXPOSE 5000
diff --git a/backend/test_app.py b/backend/test_app.py
new file mode 100644
index 0000000000000000000000000000000000000000..a5ba063eb3e393609183c3e1018e9fcf7616c569
--- /dev/null
+++ b/backend/test_app.py
@@ -0,0 +1,78 @@
+import pytest
+import json
+from unittest.mock import patch, MagicMock
+from app import app
+
+@pytest.fixture
+def client():
+    app.config["TESTING"] = True
+    with app.test_client() as client:
+        yield client
+
+def test_health(client):
+    response = client.get("/health")
+    assert response.status_code == 200
+    assert response.json == {"status": "ok"}
+
+@patch("app.redis_client.get")
+def test_get_request_count(mock_redis_get, client):
+    mock_redis_get.return_value = "5"
+    response = client.get("/request_count")
+    assert response.status_code == 200
+    assert response.json == {"status": "success", "data": {"request_received_count": 5}, "errors": None}
+
+@patch("app.redis_client.exists")
+@patch("app.redis_client.get")
+def test_bruteforce_cached(mock_redis_get, mock_redis_exists, client):
+    mock_redis_exists.return_value = True
+    mock_redis_get.return_value = "password123"
+    data = json.dumps({"hash": "5f4dcc3b5aa765d61d8327deb882cf99"})
+    response = client.post("/bruteforce", data=data, content_type="application/json")
+    
+    assert response.status_code == 200
+    assert response.json == {
+        "status": "success",
+        "data": {"hash": "5f4dcc3b5aa765d61d8327deb882cf99", "original": "password123"},
+        "errors": None
+    }
+
+@patch("app.redis_client.keys")
+@patch("app.redis_client.get")
+def test_get_resolved_hashes(mock_redis_get, mock_redis_keys, client):
+    mock_redis_keys.return_value = ["hash1", "hash2"]
+    mock_redis_get.side_effect = lambda key: f"original_{key}"
+    
+    response = client.get("/resolved")
+    
+    assert response.status_code == 200
+    assert response.json == {
+        "status": "success",
+        "data": {"hash1": "original_hash1", "hash2": "original_hash2"},
+        "errors": None
+    }
+
+@patch("app.redis_client.exists")
+@patch("app.redis_client.get")
+def test_get_resolved_hash(mock_redis_get, mock_redis_exists, client):
+    mock_redis_exists.return_value = True
+    mock_redis_get.return_value = "password123"
+    response = client.get("/resolved/5f4dcc3b5aa765d61d8327deb882cf99")
+    
+    assert response.status_code == 200
+    assert response.json == {
+        "status": "success",
+        "data": {"hash": "5f4dcc3b5aa765d61d8327deb882cf99", "original": "password123"},
+        "errors": None
+    }
+
+@patch("app.redis_client.exists")
+def test_get_resolved_hash_not_found(mock_redis_exists, client):
+    mock_redis_exists.return_value = False
+    response = client.get("/resolved/nonexistent_hash")
+    
+    assert response.status_code == 404
+    assert response.json == {
+        "status": "fail",
+        "data": None,
+        "errors": {"message": "No resolved entry found for hash: nonexistent_hash"}
+    }