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tests.py
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tests.py
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from fractions import Fraction
from inspect import cleandoc
import unittest
from pyexpect import expect
from cooklang import Ingredient, Quantity, Recipe
class ParserTest(unittest.TestCase):
def test_empty_file(self) -> None:
recipe = Recipe.parse("")
expect(recipe.metadata).to_equal({})
expect(recipe.ingredients).to_equal([])
expect(recipe.steps).to_equal([])
def test_ingredient_name_extraction(self) -> None:
recipe = Recipe.parse(
cleandoc(
"""
Place @stuff in the pan
Place @other things{} in the pan too
"""
)
)
expect(recipe.metadata).to_equal({})
expect(recipe.ingredients).to_equal(
[
Ingredient("stuff"),
Ingredient("other things"),
]
)
expect(recipe.steps).to_equal(
[
"Place stuff in the pan",
"Place other things in the pan too",
]
)
def test_ingredient_quantity_extraction(self) -> None:
recipe = Recipe.parse(
cleandoc(
"""
Place @sugar{42%grams} in the pan along with @green onions{10%grams}
Use @salt{0.5%grams} and @amaranth{1/2%cup}
""" # noqa: E501
)
)
expect(recipe.metadata).to_equal({})
expect(recipe.ingredients).to_equal(
[
Ingredient("sugar", Quantity(42, "grams")),
Ingredient("green onions", Quantity(10, "grams")),
Ingredient("salt", Quantity(0.5, "grams")),
Ingredient("amaranth", Quantity(Fraction(1, 2), "cup")),
]
)
expect(recipe.steps).to_equal(
[
"Place sugar in the pan along with green onions",
"Use salt and amaranth",
]
)
def test_adding_up_ingredient_quantities(self) -> None:
recipe = Recipe.parse(
cleandoc(
"""
Add @salt{0.1%grams} and @salt{0.2%grams}. Add more @salt to taste
Add @amaranth{1/2%cup} and @amaranth{1/4%cup}.
Add @butter{1%cup} and @butter{2%cup}.
Pour some @olive oil{}
Add @garlic{1}
""" # noqa: E501
)
)
expect(recipe.ingredients).to_equal(
[
Ingredient("salt", Quantity(0.3, "grams")),
Ingredient("amaranth", Quantity(Fraction(3, 4), "cup")),
Ingredient("butter", Quantity(3, "cup")),
Ingredient("olive oil"),
Ingredient("garlic", Quantity(1)),
]
)
def test_more_complex_ingredient_extraction(self) -> None:
recipe = Recipe.parse(
cleandoc(
"""
Put @green olives{5%units} in the #big bowl{}, together with @salt{2%grams} and @green onions{}
Season with @salt and @pepper.
Get the @sauté vegetables{}.
""" # noqa: E501
)
)
expect(recipe.metadata).to_equal({})
expect(recipe.ingredients).to_equal(
[
Ingredient("green olives", Quantity(5, "units")),
Ingredient("salt", Quantity(2, "grams")),
Ingredient("green onions"),
Ingredient("pepper"),
Ingredient("sauté vegetables"),
]
)
expect(recipe.steps).to_equal(
[
"Put green olives in the big bowl, together with salt and green onions", # noqa: E501
"Season with salt and pepper.",
"Get the sauté vegetables.",
]
)
def test_metadata_extraction(self) -> None:
recipe = Recipe.parse(
cleandoc(
"""
>> time: 15 mins
>> course: lunch, dinner
>> servings: 4|2|1
>> weird spacing : every where
"""
)
)
expect(recipe.metadata).to_equal(
{
"time": "15 mins",
"course": "lunch, dinner",
"servings": "4|2|1",
"weird spacing": "every where",
}
)
expect(recipe.ingredients).to_equal([])
expect(recipe.steps).to_equal([])
def test_stripping_out_comments(self) -> None:
recipe = Recipe.parse(
cleandoc(
"""
-- comments can be added anywhere
>> time: 15 mins -- even here!
-- before paragraphs too
Hey this is a paragraph with no ingredients
-- after them too
Another paragraph!
[- block comment here -]
and [- in text somewhere -]
as well
"""
)
)
expect(recipe.metadata).to_equal({"time": "15 mins"})
expect(recipe.ingredients).to_equal([])
expect(recipe.steps).to_equal(
[
"Hey this is a paragraph with no ingredients",
"Another paragraph!",
"and",
"as well",
]
)
def test_stripping_out_timing(self) -> None:
recipe = Recipe.parse(
cleandoc(
"""
Cook the @pasta for ~{10 minutes}
"""
)
)
expect(recipe.metadata).to_equal({})
expect(recipe.ingredients).to_equal(
[
Ingredient("pasta"),
]
)
expect(recipe.steps).to_equal(
[
"Cook the pasta for 10 minutes",
]
)
def test_skip_invalid_syntax(self) -> None:
recipe = Recipe.parse(
cleandoc(
"""
# For instance, a markdown header
@ Or something else here
"""
)
)
expect(recipe.metadata).to_equal({})
expect(recipe.ingredients).to_equal([])
expect(recipe.steps).to_equal(
[
"# For instance, a markdown header",
"@ Or something else here",
]
)
if __name__ == "__main__":
unittest.main()