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README.md

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+# NDC Test Cases
+
+This repository contains test cases for validating Native Database Connector (NDC) implementations against the NDC specification.
+
+## Overview
+
+The test cases in this repository help verify that NDC implementations correctly handle various database operations and scenarios. 
+
+The test suite currently includes relational database test cases and in the future, we will have additional test cases suited for other 
+kinds of databases like NoSQL, document DBs etc.
+
+## Structure
+
+```
+.
+├── relational/              # Test cases for relational databases
+│   ├── query/              # Query operation test cases
+│   │   └── */             # Individual test cases
+│   │       ├── request.json
+│   │       └── expected.json
+│   └── scripts/           # Helper scripts
+└── static/                # Static test resources
+    └── relational/       
+        └── postgres/      # PostgreSQL specific resources
+```
+
+## Running Tests Locally
+
+### Prerequisites
+
+- Docker and Docker Compose
+- curl
+- jq
+
+### Setup
+
+1. Clone the repository:
+```bash
+git clone https://github.com/hasura/ndc-test-cases
+cd ndc-test-cases
+```
+
+2. Start PostgreSQL and the NDC connector:
+```bash
+cd static/relational/postgres
+docker compose up -d
+```
+
+### Running NDC Tests 
+
+Use the `ndc-test` CLI to run the test cases:
+
+```bash
+ndc-test replay --endpoint http://localhost:8080 --snapshots-dir relational
+```
+
+### GitHub Actions
+
+The repository includes two GitHub Actions workflows:
+
+1. **Main Branch Workflow**: Runs on pushes to main and manual triggers
+2. **PR Workflow**: Runs on pull requests to main
+
+Both workflows:
+- Set up a PostgreSQL instance
+- Configure and start the NDC Postgres connector
+- Run the test suite on every commit
+
+## Contributing
+
+You can add a new test case by adding a new folder under the snapshot folder 
+
+### Adding New Test Cases
+
+Each test case should include:
+1. `request.json`: The request to send to the NDC
+2. `expected.json`: The expected response
+
+Test cases should be atomic and focus on testing a specific functionality.
+
+
+## Related Projects
+
+- [NDC Spec](https://github.com/hasura/ndc-spec)