Jestspectation

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Pattern matching tools to test complex data structures.

Jestspectation 최신버젼 다운로드

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# Jestspectation

Pattern matching tools to test complex data structures.

The design is inspired by the `expect` system from JavaScript's Jest testing
framework.

```py
>>> import jestspectation as expect
>>> assert {
...     "a": 1,
...     "b": 2,
...     "c": 3.0,
... } == {
...     "a": 1,
...     "b": expect.Any(int),
...     "c": expect.FloatApprox(2.5, magnitude=0.5)
... }

```

## Documentation

Documentation can be found [on GitHub Pages](https://maddyguthridge.github.io/Jestspectation/).

## Installation

```sh
pip install jestspectation
```

## Usage with Pytest

The library can be used as a pytest plugin, which can give access to much more
detailed error messages when assertions fail.

This should result in output similar to the following

```txt
    def test_goodbye():
>       assert 1 == expect.Any(float)
E       assert Type mismatch
E         Expected any object of type float
E         Received 1 (int)
```

These advanced completions can also be used for most standard Python objects
by wrapping the expected values in an `Equals`. For example:

```txt
    def test_lists():
>       assert expect.Equals([1, 2, 3, 4]) == [1, 2, 3, 5, 6]
E       assert [1, 2, 3, 4] == [1, 2, 3, 5, 6]
E         !! [3] 4 == 5
E            Value mismatch
E            Expected 4
E            Received 5
E         ++ [4] 6
```

To automatically use Jestspectation's diff parsing, you can configure
Jestspectation.

```py
>>> import jestspectation
>>> jestspectation.configure().pytest_all_diffs = True

```

Jestspectation

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