Document about the ways to write unit tests for Bolt apps

I am looking to write unit tests for my Bolt API, which consists of an app with several handlers for events / messages. The handlers are both decorated using the app.event decorator, and make use of the app object to access things like the db connection that has been put on it. For example:

# in main.py
app = App(
    token=APP_TOKEN,
    signing_secret=SIGNING_SECRET,
    process_before_response=True,
    token_verification_enabled=token_verification_enabled,
)
app.db = db

# in api.py:
from .main import app

@app.command("/slashcommand")
def slash_command(ack, respond):
    ack()
    results = app.db.do_query()
    respond(...)

The thing is, I cannot find any framework pointers, or documentation, on how I would write reasonable unit tests for this. Presumably ones where the kwargs like ack and respond are replaced by test doubles. How do I do this?

The page URLs

• https://slack.dev/bolt-python/

Requirements

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从 https://slack.dev/bolt-python/ 上的 Bolt for Python 文档开始，查看 main.py 和 api.py 中展示的 handler 结构，包括 app.command、app.event、app.db、ack 和 respond。记录一种合理的单元测试方法，用于测试这些 handler，包括为 handler 参数和 app 依赖项提供测试替身，并附上能够清楚说明预期行为的示例。