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| 1 | +# Copyright (c) Microsoft Corporation. All rights reserved. |
| 2 | +# Licensed under the MIT License. |
| 3 | + |
| 4 | +import pytest |
| 5 | + |
| 6 | +from botbuilder.core import BotContext, BotState, MemoryStorage, TestAdapter |
| 7 | +from botbuilder.schema import Activity |
| 8 | + |
| 9 | +RECEIVED_MESSAGE = Activity(type='message', |
| 10 | + text='received') |
| 11 | +STORAGE_KEY = 'stateKey' |
| 12 | + |
| 13 | + |
| 14 | +def cached_state(context, state_key): |
| 15 | + cached = context.services.get(state_key) |
| 16 | + return cached['state'] if cached is not None else None |
| 17 | + |
| 18 | + |
| 19 | +def key_factory(context): |
| 20 | + assert context is not None |
| 21 | + return STORAGE_KEY |
| 22 | + |
| 23 | + |
| 24 | +class TestBotState: |
| 25 | + storage = MemoryStorage() |
| 26 | + adapter = TestAdapter() |
| 27 | + context = BotContext(adapter, RECEIVED_MESSAGE) |
| 28 | + middleware = BotState(storage, key_factory) |
| 29 | + |
| 30 | + @pytest.mark.asyncio |
| 31 | + async def test_should_return_undefined_from_get_if_nothing_cached(self): |
| 32 | + state = await self.middleware.get(self.context) |
| 33 | + assert state is None, 'state returned' |
| 34 | + |
| 35 | + @pytest.mark.asyncio |
| 36 | + async def test_should_load_and_save_state_from_storage(self): |
| 37 | + |
| 38 | + async def next_middleware(): |
| 39 | + state = cached_state(self.context, self.middleware.state_key) |
| 40 | + assert state is not None, 'state not loaded' |
| 41 | + state.test = 'foo' |
| 42 | + |
| 43 | + await self.middleware.on_process_request(self.context, next_middleware) |
| 44 | + items = await self.storage.read([STORAGE_KEY]) |
| 45 | + assert STORAGE_KEY in items, 'saved state not found in storage.' |
| 46 | + assert items[STORAGE_KEY].test == 'foo', 'Missing test value in stored state.' |
| 47 | + |
| 48 | + @pytest.mark.skipif(True, reason='skipping while goal of test is investigated, test currently fails') |
| 49 | + @pytest.mark.asyncio |
| 50 | + async def test_should_force_read_of_state_from_storage(self): |
| 51 | + async def next_middleware(): |
| 52 | + state = cached_state(self.context, self.middleware.state_key) |
| 53 | + assert state.test == 'foo', 'invalid initial state' |
| 54 | + del state.test |
| 55 | + |
| 56 | + # items will not have the attribute 'test' |
| 57 | + items = await self.middleware.read(self.context, True) |
| 58 | + # Similarly, the returned value from cached_state will also not have the attribute 'test' |
| 59 | + assert cached_state(self.context, self.middleware.state_key).test == 'foo', 'state not reloaded' |
| 60 | + |
| 61 | + await self.middleware.on_process_request(self.context, next_middleware) |
| 62 | + |
| 63 | + @pytest.mark.asyncio |
| 64 | + async def test_should_clear_state_storage(self): |
| 65 | + |
| 66 | + async def next_middleware(): |
| 67 | + assert cached_state(self.context, self.middleware.state_key).test == 'foo', 'invalid initial state' |
| 68 | + await self.middleware.clear(self.context) |
| 69 | + cached_state_data = cached_state(self.context, self.middleware.state_key) |
| 70 | + assert not hasattr(cached_state_data, 'test'), 'state not cleared on context.' |
| 71 | + |
| 72 | + await self.middleware.on_process_request(self.context, next_middleware) |
| 73 | + items = await self.storage.read([STORAGE_KEY]) |
| 74 | + assert not hasattr(items[STORAGE_KEY], 'test'), 'state not cleared from storage.' |
| 75 | + |
| 76 | + @pytest.mark.asyncio |
| 77 | + async def test_should_force_immediate_write_of_state_to_storage(self): |
| 78 | + async def next_middleware(): |
| 79 | + state = cached_state(self.context, self.middleware.state_key) |
| 80 | + assert not hasattr(state, 'test'), 'invalid initial state' |
| 81 | + state.test = 'foo' |
| 82 | + |
| 83 | + await self.middleware.write(self.context, True) |
| 84 | + items = await self.storage.read([STORAGE_KEY]) |
| 85 | + assert items[STORAGE_KEY].test == 'foo', 'state not immediately flushed.' |
| 86 | + await self.middleware.on_process_request(self.context, next_middleware) |
| 87 | + |
| 88 | + @pytest.mark.asyncio |
| 89 | + async def test_should_read_from_storage_if_cached_state_missing(self): |
| 90 | + self.context.services[self.middleware.state_key] = None |
| 91 | + state = await self.middleware.read(self.context) |
| 92 | + assert state.test == 'foo', 'state not loaded' |
| 93 | + |
| 94 | + @pytest.mark.asyncio |
| 95 | + async def test_should_read_from_cache(self): |
| 96 | + state = await self.middleware.read(self.context) |
| 97 | + assert state.test == 'foo', 'state not loaded' |
| 98 | + |
| 99 | + @pytest.mark.asyncio |
| 100 | + async def test_should_force_write_to_storage_of_an_empty_state_object(self): |
| 101 | + self.context.services[self.middleware.state_key] = None |
| 102 | + await self.middleware.write(self.context, True) |
| 103 | + |
| 104 | + @pytest.mark.asyncio |
| 105 | + async def test_should_noop_calls_to_clear_when_nothing_cached(self): |
| 106 | + self.context.services[self.middleware.state_key] = None |
| 107 | + await self.middleware.clear(self.context) |
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