from preserve import run, interpret, parse, Environment recipe_simple_loop = """ Fruity Loops 1. Ingredients. 10 g flour 1 teaspoon honey Method. Sift the flour. Put honey into mixing bowl. Shake the flour until sifted. """ simple_loop = run(recipe_simple_loop) assert simple_loop.ingredients['flour'].value == 0 assert len(simple_loop.mixing_bowls[1]) == 10 recipe_nesting = """ Fruity Loops Nesting. Ingredients. 10 g flour 5 g cheese 1 teaspoon honey Method. Sift the flour. Put honey into mixing bowl.
Divide fig into mixing bowl.
Serves 1.
"""
stdin = sys.stdin
stdout = sys.stdout
sys.stdin = StringIO()
sys.stdout = StringIO()
sys.stdin.write('1\n')
sys.stdin.seek(0)
result = run(recipe)
sys.stdin.close()
sys.stdout.seek(0)
out = sys.stdout.read()
sys.stdin = stdin
sys.stdout = stdout
assert result
assert len(result.ingredients) == 3
assert result.ingredients['apricot jam'].value == 3
assert result.ingredients['beans'].value == 2
assert result.mixing_bowls[1][-1].value == 3
assert len(result.mixing_bowls[2]) == 0