Initial setup of pytest

noxfile.py

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+"""Automated testing."""
+import nox
+
+
+@nox.session()
+def formatting(session):
+    """Will tests current codebase for formatting."""
+    session.install("black", "flake8", "isort", "flake8-docstrings")
+    session.run("isort", "entsoe/", "tests/", "--check-only")
+    session.run("flake8", "entsoe/", "tests/", "--max-line-length=88", "--docstring-convention", "numpy")
+    session.run("black", "entsoe/", "tests/", "--check")
+
+
+@nox.session(python=['3.7', '3.9'])
+def tests(session):
+    """Will execute tests on codebase."""
+    session.install("pytest", "pytest-cov", "pytest-mock", "requests_mock")
+    session.install("-e", ".")
+    session.run("pytest", "--cov=entsoe", "--cov-report=html", "tests/")

requirements/dev.txt

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+-r requirements.txt
+
+nox
+flake8
+flake8-docstrings
+black
+isort
+pytest-mock
+pytest-cov
+requests_mock

tests/test_rawclient.py

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+import pandas as pd
+import pytest
+import requests as r
+import requests_mock
+
+from entsoe import EntsoeRawClient
+
+start = pd.Timestamp("20171201", tz="Europe/Brussels")
+end = pd.Timestamp("20180101", tz="Europe/Brussels")
+country_code = "BE"  # Belgium
+country_code_from = "FR"  # France
+country_code_to = "DE_LU"  # Germany-Luxembourg
+type_marketagreement_type = "A01"
+URL = "https://transparency.entsoe.eu/api"
+
+
+def test_invalid_rawclient():
+    """Will initiate RawClient without API key."""
+    with pytest.raises(TypeError):
+        EntsoeRawClient()
+
+
+def test_rawclient_get_exception():
+    """Will test if exception handling is triggered in _base_request."""
+    rm = requests_mock.Mocker()
+
+    with pytest.raises(r.HTTPError):
+        rm.get(URL, status_code=500)
+        client = EntsoeRawClient(api_key="test123")
+        client.query_load(country_code, start, end)