37 lines
1.2 KiB
Python
37 lines
1.2 KiB
Python
"""Tests of the constants that the day-25 lectures fix."""
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from weather import constants
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def test_data_file_is_the_one_of_the_lecture() -> None:
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assert constants.DATA_FILE_NAME == "weather_data.csv"
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def test_data_file_lies_next_to_the_modules_not_in_the_working_folder() -> None:
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assert constants.DATA_FILE.is_absolute()
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assert constants.DATA_FILE.parent == constants.PACKAGE_DIR
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assert constants.DATA_FILE.name == constants.DATA_FILE_NAME
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def test_column_names_match_the_header_of_the_lecture() -> None:
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assert constants.COLUMN_DAY == "day"
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assert constants.COLUMN_TEMP == "temp"
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assert constants.COLUMN_CONDITION == "condition"
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def test_temperature_is_the_second_value_of_a_row() -> None:
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assert constants.TEMP_COLUMN_INDEX == 1
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def test_fahrenheit_factors_give_the_lecture_formula() -> None:
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celsius = 100
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fahrenheit = (
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celsius * constants.FAHRENHEIT_NUMERATOR / constants.FAHRENHEIT_DENOMINATOR
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+ constants.FAHRENHEIT_OFFSET
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)
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assert fahrenheit == 212
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def test_exported_file_has_the_name_of_the_lecture() -> None:
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assert constants.EXPORT_FILE_NAME == "new_data.csv"
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