82 lines
2.6 KiB
Ruby
82 lines
2.6 KiB
Ruby
require 'rails_helper'
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RSpec.describe RecipeIngredient, type: :model do
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describe 'to_mass' do
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it 'converts volume ingredients with density' do
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ri = RecipeIngredient.new(quantity: 2, units: 'tbsp', ingredient: create(:ingredient_with_density))
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expect(ri.as_value_unit.mass?).to be_falsey
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ri.to_mass
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expect(ri.as_value_unit.mass?).to be_truthy
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end
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it 'converts ingredients with custom units' do
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i = create(:ingredient_with_density)
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i.ingredient_units << IngredientUnit.new(name: 'pat', gram_weight: 25)
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ri = RecipeIngredient.new(quantity: 2, units: 'pat', ingredient: i)
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ri.to_mass
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vu = ri.as_value_unit
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expect(vu.raw_value).to eq 50
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expect(vu.unit.to_s).to eq 'gram'
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end
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end
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describe '#can_convert_to_grams' do
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describe 'with no ingredient detail' do
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it 'returns false if no quantity or unit' do
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ri = RecipeIngredient.new
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expect(ri.can_convert_to_grams?).to be_falsey
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end
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it 'returns false if no quantity' do
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ri = RecipeIngredient.new(units: 'lbs')
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expect(ri.can_convert_to_grams?).to be_falsey
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end
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it 'returns false if no units' do
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ri = RecipeIngredient.new(quantity: '5 1/2')
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expect(ri.can_convert_to_grams?).to be_falsey
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end
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it 'returns false if weird units' do
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ri = RecipeIngredient.new(quantity: '5 1/2', units: 'dogs')
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expect(ri.can_convert_to_grams?).to be_falsey
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end
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it 'returns true if unit is mass' do
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ri = RecipeIngredient.new(quantity: '5 1/2', units: 'lbs')
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expect(ri.can_convert_to_grams?).to be_truthy
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end
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it 'returns false if unit is volume' do
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ri = RecipeIngredient.new(quantity: '5 1/2', units: 'cups')
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expect(ri.can_convert_to_grams?).to be_falsey
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end
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end
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describe 'with ingredient' do
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it 'returns false if unit is volume and ingredient has no density' do
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ri = RecipeIngredient.new(quantity: '5 1/2', units: 'cups', ingredient: create(:ingredient))
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expect(ri.can_convert_to_grams?).to be_falsey
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end
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it 'returns true if unit is volume and ingredient has density' do
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ri = RecipeIngredient.new(quantity: '5 1/2', units: 'cups', ingredient: create(:ingredient_with_density))
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expect(ri.can_convert_to_grams?).to be_truthy
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end
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end
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describe 'with recipe_as_ingredient' do
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it 'return true if unit is volume and recipe has density' do
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ri = RecipeIngredient.new(quantity: '5 1/2', units: 'cups', recipe_as_ingredient: create(:recipe))
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expect(ri.can_convert_to_grams?).to be_truthy
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end
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end
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end
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end
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