esphome/tests/unit_tests/test_yaml_util.py

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from esphome import yaml_util
from esphome.components import substitutions
from esphome.core import EsphomeError
def test_include_with_vars(fixture_path):
yaml_file = fixture_path / "yaml_util" / "includetest.yaml"
actual = yaml_util.load_yaml(yaml_file)
substitutions.do_substitution_pass(actual, None)
assert actual["esphome"]["name"] == "original"
assert actual["esphome"]["libraries"][0] == "Wire"
assert actual["esphome"]["board"] == "nodemcu"
assert actual["wifi"]["ssid"] == "my_custom_ssid"
def test_loading_a_broken_yaml_file(fixture_path):
"""Ensure we fallback to pure python to give good errors."""
yaml_file = fixture_path / "yaml_util" / "broken_includetest.yaml"
try:
yaml_util.load_yaml(yaml_file)
except EsphomeError as err:
assert "broken_included.yaml" in str(err)
def test_loading_a_yaml_file_with_a_missing_component(fixture_path):
"""Ensure we show the filename for a yaml file with a missing component."""
yaml_file = fixture_path / "yaml_util" / "missing_comp.yaml"
try:
yaml_util.load_yaml(yaml_file)
except EsphomeError as err:
assert "missing_comp.yaml" in str(err)
def test_loading_a_missing_file(fixture_path):
"""We throw EsphomeError when loading a missing file."""
yaml_file = fixture_path / "yaml_util" / "missing.yaml"
try:
yaml_util.load_yaml(yaml_file)
except EsphomeError as err:
assert "missing.yaml" in str(err)