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Test Client

Esmerald offers an extension of the Lilya TestClient called EsmeraldTestClient as well as a create_client that can be used for context testing.

from esmerald.testclient import EsmeraldTestClient

esmerald.testclient.EsmeraldTestClient 

EsmeraldTestClient(app, base_url='http://testserver', raise_server_exceptions=True, root_path='', backend='asyncio', backend_options=None, cookies=None, headers=None)

Bases: TestClient

PARAMETER DESCRIPTION
app

TYPE: Esmerald

base_url

TYPE: str DEFAULT: 'http://testserver'

raise_server_exceptions

TYPE: bool DEFAULT: True

root_path

TYPE: str DEFAULT: ''

backend

TYPE: Literal['asyncio', 'trio'] DEFAULT: 'asyncio'

backend_options

TYPE: Optional[Dict[str, Any]] DEFAULT: None

cookies

TYPE: Optional[CookieTypes] DEFAULT: None

headers

TYPE: Dict[str, str] DEFAULT: None

Source code in esmerald/testclient.py 
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def __init__(
    self,
    app: Esmerald,
    base_url: str = "http://testserver",
    raise_server_exceptions: bool = True,
    root_path: str = "",
    backend: "Literal['asyncio', 'trio']" = "asyncio",
    backend_options: Optional[Dict[str, Any]] = None,
    cookies: Optional[CookieTypes] = None,
    headers: Dict[str, str] = None,
):
    super().__init__(
        app=app,
        base_url=base_url,
        raise_server_exceptions=raise_server_exceptions,
        root_path=root_path,
        backend=backend,
        backend_options=backend_options,
        cookies=cookies,
        headers=headers,
    )

headers property writable 

headers

HTTP headers to include when sending requests.

follow_redirects instance-attribute 

follow_redirects = follow_redirects

max_redirects instance-attribute 

max_redirects = max_redirects

is_closed property 

is_closed

Check if the client being closed

trust_env property 

trust_env

timeout property writable 

timeout

event_hooks property writable 

event_hooks

auth property writable 

auth

Authentication class used when none is passed at the request-level.

See also Authentication.

base_url property writable 

base_url

Base URL to use when sending requests with relative URLs.

cookies property writable 

cookies

Cookie values to include when sending requests.

params property writable 

params

Query parameters to include in the URL when sending requests.

task instance-attribute 

task

portal class-attribute instance-attribute 

portal = None

async_backend instance-attribute 

async_backend = AsyncBackend(backend=backend, backend_options=backend_options or {})

app_state instance-attribute 

app_state = {}

app instance-attribute 

app

build_request 

build_request(method, url, *, content=None, data=None, files=None, json=None, params=None, headers=None, cookies=None, timeout=USE_CLIENT_DEFAULT, extensions=None)

Build and return a request instance.

  • The params, headers and cookies arguments are merged with any values set on the client.
  • The url argument is merged with any base_url set on the client.

See also: Request instances

PARAMETER DESCRIPTION
method

TYPE: str

url

TYPE: URL | str

content

TYPE: RequestContent | None DEFAULT: None

data

TYPE: RequestData | None DEFAULT: None

files

TYPE: RequestFiles | None DEFAULT: None

json

TYPE: Any | None DEFAULT: None

params

TYPE: QueryParamTypes | None DEFAULT: None

headers

TYPE: HeaderTypes | None DEFAULT: None

cookies

TYPE: CookieTypes | None DEFAULT: None

timeout

TYPE: TimeoutTypes | UseClientDefault DEFAULT: USE_CLIENT_DEFAULT

extensions

TYPE: RequestExtensions | None DEFAULT: None

Source code in httpx/_client.py 
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def build_request(
    self,
    method: str,
    url: URL | str,
    *,
    content: RequestContent | None = None,
    data: RequestData | None = None,
    files: RequestFiles | None = None,
    json: typing.Any | None = None,
    params: QueryParamTypes | None = None,
    headers: HeaderTypes | None = None,
    cookies: CookieTypes | None = None,
    timeout: TimeoutTypes | UseClientDefault = USE_CLIENT_DEFAULT,
    extensions: RequestExtensions | None = None,
) -> Request:
    """
    Build and return a request instance.

    * The `params`, `headers` and `cookies` arguments
    are merged with any values set on the client.
    * The `url` argument is merged with any `base_url` set on the client.

    See also: [Request instances][0]

    [0]: /advanced/clients/#request-instances
    """
    url = self._merge_url(url)
    headers = self._merge_headers(headers)
    cookies = self._merge_cookies(cookies)
    params = self._merge_queryparams(params)
    extensions = {} if extensions is None else extensions
    if "timeout" not in extensions:
        timeout = (
            self.timeout
            if isinstance(timeout, UseClientDefault)
            else Timeout(timeout)
        )
        extensions = dict(**extensions, timeout=timeout.as_dict())
    return Request(
        method,
        url,
        content=content,
        data=data,
        files=files,
        json=json,
        params=params,
        headers=headers,
        cookies=cookies,
        extensions=extensions,
    )

request 

request(method, url, *, content=None, data=None, files=None, json=None, params=None, headers=None, cookies=None, auth=USE_CLIENT_DEFAULT, follow_redirects=None, timeout=USE_CLIENT_DEFAULT, extensions=None)

Sends an HTTP request.

PARAMETER DESCRIPTION
method

TYPE: str

url

TYPE: URLTypes

content

TYPE: RequestContent | None DEFAULT: None

data

TYPE: RequestData | None DEFAULT: None

files

TYPE: RequestFiles | None DEFAULT: None

json

TYPE: Any DEFAULT: None

params

TYPE: QueryParamTypes | None DEFAULT: None

headers

TYPE: HeaderTypes | None DEFAULT: None

cookies

TYPE: CookieTypes | None DEFAULT: None

auth

TYPE: AuthTypes | UseClientDefault DEFAULT: USE_CLIENT_DEFAULT

follow_redirects

TYPE: bool | None DEFAULT: None

timeout

TYPE: TimeoutTypes | UseClientDefault DEFAULT: USE_CLIENT_DEFAULT

extensions

TYPE: dict[str, Any] | None DEFAULT: None

PARAMETER DESCRIPTION
method

The HTTP method.

TYPE: str

url

The URL to send the request to.

TYPE: URLTypes

content

The request content. Defaults to None.

TYPE: RequestContent | None DEFAULT: None

data

The request data. Defaults to None.

TYPE: RequestData | None DEFAULT: None

files

The request files. Defaults to None.

TYPE: RequestFiles | None DEFAULT: None

json

The request JSON. Defaults to None.

TYPE: Any DEFAULT: None

params

The request query parameters. Defaults to None.

TYPE: QueryParamTypes | None DEFAULT: None

headers

The request headers. Defaults to None.

TYPE: HeaderTypes | None DEFAULT: None

cookies

The request cookies. Defaults to None.

TYPE: CookieTypes | None DEFAULT: None

auth

The request authentication. Defaults to httpx._client.USE_CLIENT_DEFAULT.

TYPE: AuthTypes | UseClientDefault DEFAULT: USE_CLIENT_DEFAULT

follow_redirects

Whether to follow redirects. Defaults to None.

TYPE: bool | None DEFAULT: None

timeout

The request timeout. Defaults to httpx._client.USE_CLIENT_DEFAULT.

TYPE: TimeoutTypes | UseClientDefault DEFAULT: USE_CLIENT_DEFAULT

extensions

The request extensions. Defaults to None.

TYPE: dict[str, Any] | None DEFAULT: None

RETURNS DESCRIPTION
Response

httpx.Response: The HTTP response.
Source code in lilya/testclient/base.py 
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def request(
    self,
    method: str,
    url: URLTypes,
    *,
    content: RequestContent | None = None,
    data: RequestData | None = None,
    files: RequestFiles | None = None,
    json: Any = None,
    params: QueryParamTypes | None = None,
    headers: HeaderTypes | None = None,
    cookies: CookieTypes | None = None,
    auth: AuthTypes | httpx._client.UseClientDefault = httpx._client.USE_CLIENT_DEFAULT,
    follow_redirects: bool | None = None,
    timeout: TimeoutTypes | httpx._client.UseClientDefault = httpx._client.USE_CLIENT_DEFAULT,
    extensions: dict[str, Any] | None = None,
) -> httpx.Response:
    """
    Sends an HTTP request.

    Args:
        method (str): The HTTP method.
        url (URLTypes): The URL to send the request to.
        content (RequestContent | None, optional): The request content. Defaults to None.
        data (RequestData | None, optional): The request data. Defaults to None.
        files (RequestFiles | None, optional): The request files. Defaults to None.
        json (Any, optional): The request JSON. Defaults to None.
        params (QueryParamTypes | None, optional): The request query parameters. Defaults to None.
        headers (HeaderTypes | None, optional): The request headers. Defaults to None.
        cookies (CookieTypes | None, optional): The request cookies. Defaults to None.
        auth (AuthTypes | httpx._client.UseClientDefault, optional): The request authentication. Defaults to httpx._client.USE_CLIENT_DEFAULT.
        follow_redirects (bool | None, optional): Whether to follow redirects. Defaults to None.
        timeout (TimeoutTypes | httpx._client.UseClientDefault, optional): The request timeout. Defaults to httpx._client.USE_CLIENT_DEFAULT.
        extensions (dict[str, Any] | None, optional): The request extensions. Defaults to None.

    Returns:
        httpx.Response: The HTTP response.
    """
    url = self._merge_url(url)
    redirect: bool | httpx._client.UseClientDefault = httpx._client.USE_CLIENT_DEFAULT
    if follow_redirects is not None:
        redirect = follow_redirects

    return super().request(
        method,
        url,
        content=content,
        data=data,
        files=files,
        json=json,
        params=params,
        headers=headers,
        cookies=cookies,
        auth=auth,
        follow_redirects=redirect,
        timeout=timeout,
        extensions=extensions,
    )

stream 

stream(method, url, *, content=None, data=None, files=None, json=None, params=None, headers=None, cookies=None, auth=USE_CLIENT_DEFAULT, follow_redirects=USE_CLIENT_DEFAULT, timeout=USE_CLIENT_DEFAULT, extensions=None)

Alternative to httpx.request() that streams the response body instead of loading it into memory at once.

Parameters: See httpx.request.

See also: Streaming Responses

PARAMETER DESCRIPTION
method

TYPE: str

url

TYPE: URL | str

content

TYPE: RequestContent | None DEFAULT: None

data

TYPE: RequestData | None DEFAULT: None

files

TYPE: RequestFiles | None DEFAULT: None

json

TYPE: Any | None DEFAULT: None

params

TYPE: QueryParamTypes | None DEFAULT: None

headers

TYPE: HeaderTypes | None DEFAULT: None

cookies

TYPE: CookieTypes | None DEFAULT: None

auth

TYPE: AuthTypes | UseClientDefault | None DEFAULT: USE_CLIENT_DEFAULT

follow_redirects

TYPE: bool | UseClientDefault DEFAULT: USE_CLIENT_DEFAULT

timeout

TYPE: TimeoutTypes | UseClientDefault DEFAULT: USE_CLIENT_DEFAULT

extensions

TYPE: RequestExtensions | None DEFAULT: None

YIELDS DESCRIPTION
Response
Source code in httpx/_client.py 
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@contextmanager
def stream(
    self,
    method: str,
    url: URL | str,
    *,
    content: RequestContent | None = None,
    data: RequestData | None = None,
    files: RequestFiles | None = None,
    json: typing.Any | None = None,
    params: QueryParamTypes | None = None,
    headers: HeaderTypes | None = None,
    cookies: CookieTypes | None = None,
    auth: AuthTypes | UseClientDefault | None = USE_CLIENT_DEFAULT,
    follow_redirects: bool | UseClientDefault = USE_CLIENT_DEFAULT,
    timeout: TimeoutTypes | UseClientDefault = USE_CLIENT_DEFAULT,
    extensions: RequestExtensions | None = None,
) -> typing.Iterator[Response]:
    """
    Alternative to `httpx.request()` that streams the response body
    instead of loading it into memory at once.

    **Parameters**: See `httpx.request`.

    See also: [Streaming Responses][0]

    [0]: /quickstart#streaming-responses
    """
    request = self.build_request(
        method=method,
        url=url,
        content=content,
        data=data,
        files=files,
        json=json,
        params=params,
        headers=headers,
        cookies=cookies,
        timeout=timeout,
        extensions=extensions,
    )
    response = self.send(
        request=request,
        auth=auth,
        follow_redirects=follow_redirects,
        stream=True,
    )
    try:
        yield response
    finally:
        response.close()

send 

send(request, *, stream=False, auth=USE_CLIENT_DEFAULT, follow_redirects=USE_CLIENT_DEFAULT)

Send a request.

The request is sent as-is, unmodified.

Typically you'll want to build one with Client.build_request() so that any client-level configuration is merged into the request, but passing an explicit httpx.Request() is supported as well.

See also: Request instances

PARAMETER DESCRIPTION
request

TYPE: Request

stream

TYPE: bool DEFAULT: False

auth

TYPE: AuthTypes | UseClientDefault | None DEFAULT: USE_CLIENT_DEFAULT

follow_redirects

TYPE: bool | UseClientDefault DEFAULT: USE_CLIENT_DEFAULT

Source code in httpx/_client.py 
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def send(
    self,
    request: Request,
    *,
    stream: bool = False,
    auth: AuthTypes | UseClientDefault | None = USE_CLIENT_DEFAULT,
    follow_redirects: bool | UseClientDefault = USE_CLIENT_DEFAULT,
) -> Response:
    """
    Send a request.

    The request is sent as-is, unmodified.

    Typically you'll want to build one with `Client.build_request()`
    so that any client-level configuration is merged into the request,
    but passing an explicit `httpx.Request()` is supported as well.

    See also: [Request instances][0]

    [0]: /advanced/clients/#request-instances
    """
    if self._state == ClientState.CLOSED:
        raise RuntimeError("Cannot send a request, as the client has been closed.")

    self._state = ClientState.OPENED
    follow_redirects = (
        self.follow_redirects
        if isinstance(follow_redirects, UseClientDefault)
        else follow_redirects
    )

    self._set_timeout(request)

    auth = self._build_request_auth(request, auth)

    response = self._send_handling_auth(
        request,
        auth=auth,
        follow_redirects=follow_redirects,
        history=[],
    )
    try:
        if not stream:
            response.read()

        return response

    except BaseException as exc:
        response.close()
        raise exc

get 

get(url, **kwargs)
PARAMETER DESCRIPTION
url

TYPE: URLTypes

**kwargs

TYPE: Any DEFAULT: {}

Source code in lilya/testclient/base.py 
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def get(
    self,
    url: URLTypes,
    **kwargs: Any,
) -> httpx.Response:
    return self._process_request(method="GET", url=url, **kwargs)  # type: ignore

options 

options(url, **kwargs)
PARAMETER DESCRIPTION
url

TYPE: URLTypes

**kwargs

TYPE: Any DEFAULT: {}

Source code in lilya/testclient/base.py 
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def options(
    self,
    url: URLTypes,
    **kwargs: Any,
) -> httpx.Response:
    return self._process_request(method="OPTIONS", url=url, **kwargs)  # type: ignore

head 

head(url, **kwargs)
PARAMETER DESCRIPTION
url

TYPE: URLTypes

**kwargs

TYPE: Any DEFAULT: {}

Source code in lilya/testclient/base.py 
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def head(
    self,
    url: URLTypes,
    **kwargs: Any,
) -> httpx.Response:
    return self._process_request(method="HEAD", url=url, **kwargs)  # type: ignore

post 

post(url, **kwargs)
PARAMETER DESCRIPTION
url

TYPE: URLTypes

**kwargs

TYPE: Any DEFAULT: {}

Source code in lilya/testclient/base.py 
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def post(
    self,
    url: URLTypes,
    **kwargs: Any,
) -> httpx.Response:
    return self._process_request(method="POST", url=url, **kwargs)  # type: ignore

put 

put(url, **kwargs)
PARAMETER DESCRIPTION
url

TYPE: URLTypes

**kwargs

TYPE: Any DEFAULT: {}

Source code in lilya/testclient/base.py 
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def put(
    self,
    url: URLTypes,
    **kwargs: Any,
) -> httpx.Response:
    return self._process_request(method="PUT", url=url, **kwargs)  # type: ignore

patch 

patch(url, **kwargs)
PARAMETER DESCRIPTION
url

TYPE: URLTypes

**kwargs

TYPE: Any DEFAULT: {}

Source code in lilya/testclient/base.py 
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def patch(
    self,
    url: URLTypes,
    **kwargs: Any,
) -> httpx.Response:
    return self._process_request(method="PATCH", url=url, **kwargs)  # type: ignore

delete 

delete(url, **kwargs)
PARAMETER DESCRIPTION
url

TYPE: URLTypes

**kwargs

TYPE: Any DEFAULT: {}

Source code in lilya/testclient/base.py 
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def delete(
    self,
    url: URLTypes,
    **kwargs: Any,
) -> httpx.Response:
    return self._process_request(method="DELETE", url=url, **kwargs)  # type: ignore

close 

close()

Close transport and proxies.

Source code in httpx/_client.py 
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def close(self) -> None:
    """
    Close transport and proxies.
    """
    if self._state != ClientState.CLOSED:
        self._state = ClientState.CLOSED

        self._transport.close()
        for transport in self._mounts.values():
            if transport is not None:
                transport.close()

websocket_connect 

websocket_connect(url, subprotocols=None, **kwargs)

Establishes a WebSocket connection.

PARAMETER DESCRIPTION
url

TYPE: str

subprotocols

TYPE: Sequence[str] | None DEFAULT: None

**kwargs

TYPE: Any DEFAULT: {}

PARAMETER DESCRIPTION
url

The WebSocket URL.

TYPE: str

subprotocols

The WebSocket subprotocols. Defaults to None.

TYPE: Sequence[str] | None DEFAULT: None

**kwargs

Additional keyword arguments.

TYPE: Any DEFAULT: {}

RETURNS DESCRIPTION
WebSocketTestSession

The WebSocket session.

TYPE: WebSocketTestSession

Source code in lilya/testclient/base.py 
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def websocket_connect(
    self,
    url: str,
    subprotocols: Sequence[str] | None = None,
    **kwargs: Any,
) -> WebSocketTestSession:
    """
    Establishes a WebSocket connection.

    Args:
        url (str): The WebSocket URL.
        subprotocols (Sequence[str] | None, optional): The WebSocket subprotocols. Defaults to None.
        **kwargs (Any): Additional keyword arguments.

    Returns:
        WebSocketTestSession: The WebSocket session.
    """
    url = urljoin("ws://testserver", url)
    headers = self._prepare_websocket_headers(subprotocols, **kwargs)
    kwargs["headers"] = headers
    try:
        super().request("GET", url, **kwargs)
    except UpgradeException as exc:
        session = exc.session
    else:
        raise RuntimeError("Expected WebSocket upgrade")

    return session

lifespan async 

lifespan()

Handles the lifespan of the ASGI application.

Source code in lilya/testclient/base.py 
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async def lifespan(self) -> None:
    """
    Handles the lifespan of the ASGI application.
    """
    scope = {"type": "lifespan", "state": self.app_state}
    try:
        await self.app(scope, self.stream_receive.receive, self.stream_send.send)
    finally:
        await self.stream_send.send(None)

wait_startup async 

wait_startup()

Waits for the ASGI application to start up.

Source code in lilya/testclient/base.py 
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async def wait_startup(self) -> None:
    """
    Waits for the ASGI application to start up.
    """
    await self.stream_receive.send({"type": "lifespan.startup"})

    async def receive() -> Any:
        message = await self.stream_send.receive()
        if message is None:
            self.task.result()
        return message

    message = await receive()
    assert message["type"] in (
        "lifespan.startup.complete",
        "lifespan.startup.failed",
    )
    if message["type"] == "lifespan.startup.failed":
        await receive()

wait_shutdown async 

wait_shutdown()

Waits for the ASGI application to shut down.

Source code in lilya/testclient/base.py 
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async def wait_shutdown(self) -> None:
    """
    Waits for the ASGI application to shut down.
    """

    async def receive() -> Any:
        message = await self.stream_send.receive()
        if message is None:
            self.task.result()
        return message

    async with self.stream_send:
        await self.stream_receive.send({"type": "lifespan.shutdown"})
        message = await receive()
        assert message["type"] in (
            "lifespan.shutdown.complete",
            "lifespan.shutdown.failed",
        )
        if message["type"] == "lifespan.shutdown.failed":
            await receive()

from esmerald.testclient import create_client

You can learn more how to use it in the documentation.

esmerald.testclient.create_client 

create_client(routes, *, settings_module=None, debug=None, app_name=None, title=None, version=None, summary=None, description=None, contact=None, terms_of_service=None, license=None, security=None, servers=None, secret_key=get_random_secret_key(), allowed_hosts=None, allow_origins=None, base_url='http://testserver', backend='asyncio', backend_options=None, interceptors=None, pluggables=None, extensions=None, permissions=None, dependencies=None, middleware=None, csrf_config=None, exception_handlers=None, openapi_config=None, on_shutdown=None, on_startup=None, cors_config=None, session_config=None, scheduler_config=None, enable_scheduler=None, enable_openapi=True, include_in_schema=True, openapi_version='3.1.0', raise_server_exceptions=True, root_path='', static_files_config=None, template_config=None, lifespan=None, cookies=None, redirect_slashes=None, tags=None, webhooks=None, encoders=None)
PARAMETER DESCRIPTION
routes

TYPE: Union[APIGateHandler, List[APIGateHandler]]

settings_module

TYPE: Union[Optional[SettingsType], Optional[str]] DEFAULT: None

debug

TYPE: Optional[bool] DEFAULT: None

app_name

TYPE: Optional[str] DEFAULT: None

title

TYPE: Optional[str] DEFAULT: None

version

TYPE: Optional[str] DEFAULT: None

summary

TYPE: Optional[str] DEFAULT: None

description

TYPE: Optional[str] DEFAULT: None

contact

TYPE: Optional[Contact] DEFAULT: None

terms_of_service

TYPE: Optional[AnyUrl] DEFAULT: None

license

TYPE: Optional[License] DEFAULT: None

security

TYPE: Optional[List[SecurityScheme]] DEFAULT: None

servers

TYPE: Optional[List[Dict[str, Union[str, Any]]]] DEFAULT: None

secret_key

TYPE: Optional[str] DEFAULT: get_random_secret_key()

allowed_hosts

TYPE: Optional[List[str]] DEFAULT: None

allow_origins

TYPE: Optional[List[str]] DEFAULT: None

base_url

TYPE: str DEFAULT: 'http://testserver'

backend

TYPE: Literal['asyncio', 'trio'] DEFAULT: 'asyncio'

backend_options

TYPE: Optional[Dict[str, Any]] DEFAULT: None

interceptors

TYPE: Optional[List[Interceptor]] DEFAULT: None

pluggables

TYPE: Optional[Dict[str, Union[Extension, Pluggable, type[Extension]]]] DEFAULT: None

extensions

TYPE: Optional[Dict[str, Union[Extension, Pluggable, type[Extension]]]] DEFAULT: None

permissions

TYPE: Optional[List[Permission]] DEFAULT: None

dependencies

TYPE: Optional[Dependencies] DEFAULT: None

middleware

TYPE: Optional[List[Middleware]] DEFAULT: None

csrf_config

TYPE: Optional[CSRFConfig] DEFAULT: None

exception_handlers

TYPE: Optional[ExceptionHandlerMap] DEFAULT: None

openapi_config

TYPE: Optional[OpenAPIConfig] DEFAULT: None

on_shutdown

TYPE: Optional[List[LifeSpanHandler]] DEFAULT: None

on_startup

TYPE: Optional[List[LifeSpanHandler]] DEFAULT: None

cors_config

TYPE: Optional[CORSConfig] DEFAULT: None

session_config

TYPE: Optional[SessionConfig] DEFAULT: None

scheduler_config

TYPE: Optional[SchedulerConfig] DEFAULT: None

enable_scheduler

TYPE: bool DEFAULT: None

enable_openapi

TYPE: bool DEFAULT: True

include_in_schema

TYPE: bool DEFAULT: True

openapi_version

TYPE: Optional[str] DEFAULT: '3.1.0'

raise_server_exceptions

TYPE: bool DEFAULT: True

root_path

TYPE: str DEFAULT: ''

static_files_config

TYPE: Optional[StaticFilesConfig] DEFAULT: None

template_config

TYPE: Optional[TemplateConfig] DEFAULT: None

lifespan

TYPE: Optional[Callable[[Esmerald], AsyncContextManager]] DEFAULT: None

cookies

TYPE: Optional[CookieTypes] DEFAULT: None

redirect_slashes

TYPE: Optional[bool] DEFAULT: None

tags

TYPE: Optional[List[str]] DEFAULT: None

webhooks

TYPE: Optional[Sequence[WebhookGateway]] DEFAULT: None

encoders

TYPE: Optional[Sequence[Encoder]] DEFAULT: None

Source code in esmerald/testclient.py 
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def create_client(
    routes: Union["APIGateHandler", List["APIGateHandler"]],
    *,
    settings_module: Union[Optional["SettingsType"], Optional[str]] = None,
    debug: Optional[bool] = None,
    app_name: Optional[str] = None,
    title: Optional[str] = None,
    version: Optional[str] = None,
    summary: Optional[str] = None,
    description: Optional[str] = None,
    contact: Optional[Contact] = None,
    terms_of_service: Optional[AnyUrl] = None,
    license: Optional[License] = None,
    security: Optional[List[SecurityScheme]] = None,
    servers: Optional[List[Dict[str, Union[str, Any]]]] = None,
    secret_key: Optional[str] = get_random_secret_key(),
    allowed_hosts: Optional[List[str]] = None,
    allow_origins: Optional[List[str]] = None,
    base_url: str = "http://testserver",
    backend: "Literal['asyncio', 'trio']" = "asyncio",
    backend_options: Optional[Dict[str, Any]] = None,
    interceptors: Optional[List["Interceptor"]] = None,
    pluggables: Optional[Dict[str, Union["Extension", "Pluggable", type["Extension"]]]] = None,
    extensions: Optional[Dict[str, Union["Extension", "Pluggable", type["Extension"]]]] = None,
    permissions: Optional[List["Permission"]] = None,
    dependencies: Optional["Dependencies"] = None,
    middleware: Optional[List["Middleware"]] = None,
    csrf_config: Optional["CSRFConfig"] = None,
    exception_handlers: Optional["ExceptionHandlerMap"] = None,
    openapi_config: Optional["OpenAPIConfig"] = None,
    on_shutdown: Optional[List["LifeSpanHandler"]] = None,
    on_startup: Optional[List["LifeSpanHandler"]] = None,
    cors_config: Optional["CORSConfig"] = None,
    session_config: Optional["SessionConfig"] = None,
    scheduler_config: Optional[SchedulerConfig] = None,
    enable_scheduler: bool = None,
    enable_openapi: bool = True,
    include_in_schema: bool = True,
    openapi_version: Optional[str] = "3.1.0",
    raise_server_exceptions: bool = True,
    root_path: str = "",
    static_files_config: Optional["StaticFilesConfig"] = None,
    template_config: Optional["TemplateConfig"] = None,
    lifespan: Optional[Callable[["Esmerald"], "AsyncContextManager"]] = None,
    cookies: Optional[CookieTypes] = None,
    redirect_slashes: Optional[bool] = None,
    tags: Optional[List[str]] = None,
    webhooks: Optional[Sequence["WebhookGateway"]] = None,
    encoders: Optional[Sequence[Encoder]] = None,
) -> EsmeraldTestClient:
    return EsmeraldTestClient(
        app=Esmerald(
            settings_module=settings_module,
            debug=debug,
            title=title,
            version=version,
            summary=summary,
            description=description,
            contact=contact,
            terms_of_service=terms_of_service,
            license=license,
            security=security,
            servers=servers,
            routes=cast("Any", routes if isinstance(routes, list) else [routes]),
            app_name=app_name,
            secret_key=secret_key,
            allowed_hosts=allowed_hosts,
            allow_origins=allow_origins,
            interceptors=interceptors,
            permissions=permissions,
            dependencies=dependencies,
            middleware=middleware,
            csrf_config=csrf_config,
            exception_handlers=exception_handlers,
            openapi_config=openapi_config,
            on_shutdown=on_shutdown,
            on_startup=on_startup,
            cors_config=cors_config,
            scheduler_config=scheduler_config,
            enable_scheduler=enable_scheduler,
            static_files_config=static_files_config,
            template_config=template_config,
            session_config=session_config,
            lifespan=lifespan,
            redirect_slashes=redirect_slashes,
            enable_openapi=enable_openapi,
            openapi_version=openapi_version,
            include_in_schema=include_in_schema,
            tags=tags,
            webhooks=webhooks,
            pluggables=pluggables,
            extensions=extensions,
            encoders=encoders,
        ),
        base_url=base_url,
        backend=backend,
        backend_options=backend_options,
        root_path=root_path,
        raise_server_exceptions=raise_server_exceptions,
        cookies=cookies,
    )