pytest-th2-bdd 0.0.1.dev2320248668

pytest_th2_bdd

Th2 pytest bdd plugin

This is the plugin for pytest, which uses pytest-bdd plugin and th2 as backend.

Features

• Typed tables in feature file;
• Th2 client boilerplate isolation (auto th2 access factory creation, events hierarchy creation in background);
• Test context.

Installation

• From PyPI
  This package can be found on PyPI.

  pip install pytest-th2-bdd
  

• From Source

  git clone https://github.com/th2-net/pytest-th2-bdd
  pip install pytest-th2-bdd/
  

Available fixtures

factory

This fixture yields th2 CommonFactory for which will be created from configuration located in configs/ directory.

ctx

This fixture is used for inter-steps communication. It has some important service items:

key	purpose
__ROOT__	root events for each feature
__SCENARIO__	current scenario root event
__SCENARIO_START__	current scenario start datetime (in UTC)
__STEP__	current step event

Requirements

• Prepared th2 test environment;
• Configuration for th2 CommonFactory in configs/ directory;

How to use tables

Imagine, that you need to pass data as table in some step:

| field1 | field2 | ... | fieldN |
| 1      | 2      | ... | 3      |
...
| valN   | valK   | ... | valM   |

1. You need to declare dataclass with header definition:

@dataclass
class SomeRow:
    field1: str
    field2: str
    ...
    fieldN: str

2. Add field and converter at the desired step definition

@given(
    parsers.cfparse(
        "some step description {var1} ... \n{table}",
    ),
    converters={"table": Table(SomeRow)}, # converter setup
)
def some_step(var1, table: Table[SomeRow]): # Syntax hints via generics
    ...

How to start test process (with installed plugin)

pytest tests/

How to start test process (without installed plugin)

export PYTHONPATH=path/to/directory/with/this/repository:$PYTHONPATH
pytest -p th2_bdd.pytest tests/