Tryke

tryke.mp4

Highlights

• Fast Rust-powered test discovery
• Concurrent tests by default
• Pretty, per-assertion diagnostics
• Soft assertions (like pytest-check)
• Native async support — no plugin
• Watch mode
• Changed mode (like pytest-picked)
• Client/server mode for fast editor integrations
• Fixtures with setup / teardown and typed Depends() injection
• Parametrized tests via @test.cases
• Grouping with describe() blocks
• skip, skip_if, xfail, and todo markers
• In-source testing
• Support for doctests
• Filtering and marks
• Reporters — text, dot, json, junit, llm, nextest-style, and pytest-sugar-style

Getting started

Run tryke with uvx to get started quickly:

uvx tryke

Or, check out the tryke playground to try it out in your browser.

To learn more about using tryke, see the documentation.

from typing import Annotated

from tryke import Depends, describe, expect, fixture, test


@fixture(per="scope")
def database():
    db = {}
    yield db
    db.clear()


with describe("users"):

    @fixture
    def users(database: Annotated[dict[str, dict[str, str]], Depends(database)]):
        database["users"] = {}

        return database["users"]

    with describe("get"):

        @test("returns a stored user")
        async def test_get(users: Annotated[dict[str, str], Depends(users)]):
            users["alice"] = "alice@example.com"

            expect(users["alice"], name="returns stored email").to_equal(
                "alice@example.com"
            )

    with describe("set"):

        @test("stores a new user")
        async def test_set(users: Annotated[dict[str, str], Depends(users)]):
            users["bob"] = "bob@example.com"

            expect(users["bob"], name="stores email under user key").to_equal(
                "bob@example.com"
            )

Run the tests:

uvx tryke test # run once
uvx tryke # watch mode

Coming from pytest?

The migration guide has a side-by-side cheat sheet and a copy-paste LLM prompt.

License

This repository is licensed under the MIT License.