from pathlib import Path
from proxytester.main import BaseProxyTest, BackendConfig, ProxyConfig


class ExampleBackendConfigurationTest(BaseProxyTest):
    """A simple test to demonstrate some advanced backend configuration options
    """

    def __init__(self):
        super().__init__()
        self.description = "Example backend configuration"

        self.backend_config = BackendConfig(
            # Host and port are used both by the HTTP backend and in the
            # reverse proxy configuration
            host="127.0.0.1",
            port="9999",
            # Response headers, body and status are sent to the reverse proxy
            # at each request
            response_headers={
                "X-Test-1": "1234",
                "X-Test-2": "5678",
            },
            response_body="This is just a test body",
            response_status=301,
        )

        # Now we check some headers, body (regex) and status code
        self.expected_headers = {
            "x-test-2": "5678",
        }
        self.forbidden_client_headers = {
            "x-test-3": "abcd",
        }

        self.expected_header_patterns = {
            "x-test-1": r"^[1-4]{4}$",
        }
        self.expected_body_pattern = r".*just.*"
        self.expected_status = 301

        self.proxy_config = ProxyConfig(
            binary_path=Path.home() / "bin/haproxy"
        )

    async def run_test(self):
        await self.make_request()
        return True