From 337c25e13ba268ba64241c6ee429d02957d88941 Mon Sep 17 00:00:00 2001
From: Tharun Kumar Reddy Ette <ettetharunkumarreddy20@gmail.com>
Date: Tue, 10 Feb 2026 15:32:49 +0530
Subject: [PATCH] Initial FastAPI project with tests

---
 .gitignore          |  5 +++++
 main.py             | 26 ++++++++++++++++++++++++++
 tests/__init__.py   |  0
 tests/test_users.py | 29 +++++++++++++++++++++++++++++
 4 files changed, 60 insertions(+)
 create mode 100644 main.py
 create mode 100644 tests/__init__.py
 create mode 100644 tests/test_users.py

diff --git a/.gitignore b/.gitignore
index e69de29b..5ab5ef0a 100644
--- a/.gitignore
+++ b/.gitignore
@@ -0,0 +1,5 @@
+venv/
+__pycache__/
+.pytest_cache/
+*.pyc
+.env
\ No newline at end of file
diff --git a/main.py b/main.py
new file mode 100644
index 00000000..0683eef3
--- /dev/null
+++ b/main.py
@@ -0,0 +1,26 @@
+from fastapi import FastAPI, HTTPException
+from pydantic import BaseModel
+
+app = FastAPI()
+
+class User(BaseModel):
+    id: int
+    name: str
+    email: str
+
+users_db = []
+
+@app.get("/")
+def health_check():
+    return {"message": "FastAPI is running successfully"}
+
+@app.post("/users", status_code=201)
+def create_user(user: User):
+    if any(u["id"] == user.id for u in users_db):
+        raise HTTPException(status_code=400, detail="User already exists")
+    users_db.append(user.model_dump())
+    return user
+
+@app.get("/users")
+def get_users():
+    return users_db
\ No newline at end of file
diff --git a/tests/__init__.py b/tests/__init__.py
new file mode 100644
index 00000000..e69de29b
diff --git a/tests/test_users.py b/tests/test_users.py
new file mode 100644
index 00000000..b50195e4
--- /dev/null
+++ b/tests/test_users.py
@@ -0,0 +1,29 @@
+from fastapi.testclient import TestClient
+import sys
+import os
+
+sys.path.append(os.path.dirname(os.path.dirname(__file__)))
+
+from main import app
+
+client = TestClient(app)
+
+def test_create_user():
+    response = client.post(
+        "/users",
+        json={"id": 1, "name": "Tharun", "email": "tharun@test.com"}
+    )
+    assert response.status_code == 201
+    assert response.json()["name"] == "Tharun"
+
+def test_get_users():
+    response = client.get("/users")
+    assert response.status_code == 200
+    assert isinstance(response.json(), list)
+
+def test_duplicate_user_not_allowed():
+    response = client.post(
+        "/users",
+        json={"id": 1, "name": "Duplicate", "email": "dup@test.com"}
+    )
+    assert response.status_code == 400
\ No newline at end of file