hapic/tests/ext/unit/test_aiohttp.py

# coding: utf-8
from aiohttp import web
import marshmallow

from hapic import Hapic
from hapic import HapicData
from hapic.ext.aiohttp.context import AiohttpContext


class TestAiohttpExt(object):
    async def test_aiohttp_only__ok__nominal_case(
        self,
        aiohttp_client,
        loop,
    ):
        async def hello(request):
            return web.Response(text='Hello, world')

        app = web.Application(debug=True)
        app.router.add_get('/', hello)
        client = await aiohttp_client(app)
        resp = await client.get('/')
        assert resp.status == 200
        text = await resp.text()
        assert 'Hello, world' in text

    async def test_aiohttp_input_path__ok__nominal_case(
        self,
        aiohttp_client,
        loop,
    ):
        hapic = Hapic(async_=True)

        class InputPathSchema(marshmallow.Schema):
            name = marshmallow.fields.String()

        @hapic.input_path(InputPathSchema())
        async def hello(request, hapic_data: HapicData):
            name = hapic_data.path.get('name')
            return web.Response(text='Hello, {}'.format(name))

        app = web.Application(debug=True)
        app.router.add_get('/{name}', hello)
        hapic.set_context(AiohttpContext(app))
        client = await aiohttp_client(app)

        resp = await client.get('/bob')
        assert resp.status == 200

        text = await resp.text()
        assert 'Hello, bob' in text

    async def test_aiohttp_input_path__error_wrong_input_parameter(
        self,
        aiohttp_client,
        loop,
    ):
        hapic = Hapic(async_=True)

        class InputPathSchema(marshmallow.Schema):
            i = marshmallow.fields.Integer()

        @hapic.input_path(InputPathSchema())
        async def hello(request, hapic_data: HapicData):
            i = hapic_data.path.get('i')
            return web.Response(text='integer: {}'.format(str(i)))

        app = web.Application(debug=True)
        app.router.add_get('/{i}', hello)
        hapic.set_context(AiohttpContext(app))
        client = await aiohttp_client(app)

        resp = await client.get('/bob')  # NOTE: should be integer here
        assert resp.status == 400

        error = await resp.json()
        assert 'Validation error of input data' in error.get('message')
        assert {'i': ['Not a valid integer.']} == error.get('details')

    async def test_aiohttp_input_body__ok_nominal_case(
        self,
        aiohttp_client,
        loop,
    ):
        hapic = Hapic(async_=True)

        class InputBodySchema(marshmallow.Schema):
            name = marshmallow.fields.String()

        @hapic.input_body(InputBodySchema())
        async def hello(request, hapic_data: HapicData):
            name = hapic_data.body.get('name')
            return web.Response(text='Hello, {}'.format(name))

        app = web.Application(debug=True)
        app.router.add_post('/', hello)
        hapic.set_context(AiohttpContext(app))
        client = await aiohttp_client(app)

        resp = await client.post('/', data={'name': 'bob'})
        assert resp.status == 200

        text = await resp.text()
        assert 'Hello, bob' in text

    async def test_aiohttp_input_body__error__incorrect_input_body(
        self,
        aiohttp_client,
        loop,
    ):
        hapic = Hapic(async_=True)

        class InputBodySchema(marshmallow.Schema):
            i = marshmallow.fields.Integer()

        @hapic.input_body(InputBodySchema())
        async def hello(request, hapic_data: HapicData):
            i = hapic_data.body.get('i')
            return web.Response(text='integer, {}'.format(i))

        app = web.Application(debug=True)
        app.router.add_post('/', hello)
        hapic.set_context(AiohttpContext(app))
        client = await aiohttp_client(app)

        resp = await client.post('/', data={'i': 'bob'})  # NOTE: should be int
        assert resp.status == 400

        error = await resp.json()
        assert 'Validation error of input data' in error.get('message')
        assert {'i': ['Not a valid integer.']} == error.get('details')

    async def test_aiohttp_output_body__ok__nominal_case(
        self,
        aiohttp_client,
        loop,
    ):
        hapic = Hapic(async_=True)

        class OuputBodySchema(marshmallow.Schema):
            name = marshmallow.fields.String()

        @hapic.output_body(OuputBodySchema())
        async def hello(request):
            return {
                'name': 'bob',
            }

        app = web.Application(debug=True)
        app.router.add_get('/', hello)
        hapic.set_context(AiohttpContext(app))
        client = await aiohttp_client(app)

        resp = await client.get('/')
        assert resp.status == 200

        data = await resp.json()
        assert 'bob' == data.get('name')

    async def test_aiohttp_output_body__error__incorrect_output_body(
        self,
        aiohttp_client,
        loop,
    ):
        hapic = Hapic(async_=True)

        class OuputBodySchema(marshmallow.Schema):
            i = marshmallow.fields.Integer(required=True)

        @hapic.output_body(OuputBodySchema())
        async def hello(request):
            return {
                'i': 'bob',  # NOTE: should be integer
            }

        app = web.Application(debug=True)
        app.router.add_get('/', hello)
        hapic.set_context(AiohttpContext(app))
        client = await aiohttp_client(app)

        resp = await client.get('/')
        assert resp.status == 500

        data = await resp.json()
        assert 'Validation error of output data' == data.get('message')
        assert {
                   'i': ['Missing data for required field.'],
               } == data.get('details')

    async def test_aiohttp_handle_excpetion__ok__nominal_case(
        self,
        aiohttp_client,
        loop,
    ):
        hapic = Hapic(async_=True)

        @hapic.handle_exception(ZeroDivisionError, http_code=400)
        async def hello(request):
            1 / 0

        app = web.Application(debug=True)
        app.router.add_get('/', hello)
        hapic.set_context(AiohttpContext(app))
        client = await aiohttp_client(app)

        resp = await client.get('/')
        assert resp.status == 400

        data = await resp.json()
        assert 'division by zero' == data.get('message')

    async def test_aiohttp_output_stream__ok__nominal_case(
        self,
        aiohttp_client,
        loop,
    ):
        hapic = Hapic(async_=True)

        class AsyncGenerator:
            def __init__(self):
                self._iterator = iter([
                    {'name': 'Hello, bob'},
                    {'name': 'Hello, franck'},
                ])

            async def __aiter__(self):
                return self

            async def __anext__(self):
                return next(self._iterator)

        class OuputStreamItemSchema(marshmallow.Schema):
            name = marshmallow.fields.String()

        @hapic.output_stream(OuputStreamItemSchema())
        async def hello(request):
            return AsyncGenerator()

        app = web.Application(debug=True)
        app.router.add_get('/', hello)
        hapic.set_context(AiohttpContext(app))
        client = await aiohttp_client(app)

        resp = await client.get('/')
        assert resp.status == 200

        line = await resp.content.readline()
        assert b'{"name": "Hello, bob"}\n' == line

        line = await resp.content.readline()
        assert b'{"name": "Hello, franck"}\n' == line

        # TODO BS 2018-07-26: How to ensure we are at end of response ?

    def test_unit__generate_doc__ok__nominal_case(
        self,
        aiohttp_client,
        loop,
    ):
        hapic = Hapic(async_=True)

        class InputPathSchema(marshmallow.Schema):
            username = marshmallow.fields.String(required=True)

        class InputQuerySchema(marshmallow.Schema):
            show_deleted = marshmallow.fields.Boolean(required=False)

        class UserSchema(marshmallow.Schema):
            name = marshmallow.fields.String(required=True)

        @hapic.with_api_doc()
        @hapic.input_path(InputPathSchema())
        @hapic.input_query(InputQuerySchema())
        @hapic.output_body(UserSchema())
        async def get_user(request, hapic_data):
            pass

        @hapic.with_api_doc()
        @hapic.input_path(InputPathSchema())
        @hapic.output_body(UserSchema())
        async def post_user(request, hapic_data):
            pass

        app = web.Application(debug=True)
        app.router.add_get('/{username}', get_user)
        app.router.add_post('/{username}', post_user)
        hapic.set_context(AiohttpContext(app))

        doc = hapic.generate_doc('aiohttp', 'testing')
        assert 'UserSchema' in doc.get('definitions')
        assert {
                   'name': {'type': 'string'}
               } == doc['definitions']['UserSchema'].get('properties')
        assert '/{username}' in doc.get('paths')
        assert 'get' in doc['paths']['/{username}']
        assert 'post' in doc['paths']['/{username}']

        assert [
            {
                'name': 'username',
                'in': 'path',
                'required': True,
                'type': 'string',
            },
            {
                'name': 'show_deleted',
                'in': 'query',
                'required': False,
                'type': 'boolean',
            }
        ] == doc['paths']['/{username}']['get']['parameters']
        assert {
            200: {
                'schema': {
                    '$ref': '#/definitions/UserSchema',
                },
                'description': '200',
            }
        } == doc['paths']['/{username}']['get']['responses']

        assert [
                   {
                       'name': 'username',
                       'in': 'path',
                       'required': True,
                       'type': 'string',
                   }
               ] == doc['paths']['/{username}']['post']['parameters']
        assert {
                   200: {
                       'schema': {
                           '$ref': '#/definitions/UserSchema',
                       },
                       'description': '200',
                   }
               } == doc['paths']['/{username}']['get']['responses']