Fixing the Tree #64
Fixing the Tree #64
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| def initialize | ||
| attr_reader :height, :age, :apples |
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nice! not everything needs to be settable.
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| # Simple check if a tree has become too old. | ||
| if @age >= 10 && age + @prng.rand(0..10) > 20 |
| class Apple < Fruit | ||
| attr_reader :color, :diameter | ||
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| @@colors = ['red', 'yellow', 'green'] |
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class variables arent recommended.
instead you might use a constant or encapsulate them in a class method.
COLORS = %w(red yellow green).freeze def self.colors
['red', 'yellow', 'green']
endrelatedly the cool thing about class << self is that you can use it to organize your private class methods in the same way you would handle instance methods.
class << self
def foo
bar
end
private
def bar
:baz
end
end| 12.times { tree.age! } | ||
| end | ||
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| def new_test_tree |
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subject is a better option depending on what you're trying to convey.
you could also use let or let!` to accomplish this as well.
| @@ -1,14 +1,137 @@ | |||
| require 'rspec' | |||
| require 'tree' | |||
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| def kill_tree(tree) | |||
| # The 12 here is based off of the rand_seed the below | |||
| 12.times { tree.age! } | |||
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this works but its preferred to either accomplish this with a helper method or let. https://relishapp.com/rspec/rspec-rails/v/3-7/docs/helper-specs/helper-spec
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| describe '#any_apples?' do | ||
| it 'should return true when there are apples' do | ||
| tree = new_test_tree |
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the test tree can be setup as a variable placed in an outer context.
describe Tree do
let(:tree) { described_class.new(...) }
describe "#kill" do
context "when tree is alive" do
it "kills tree"
tree.kill
expect(tree.dead?).to eq true
end
end
end
end| describe 'Fruit' do | ||
| describe Fruit do | ||
| it 'should have seeds when created' do | ||
| f = Fruit.new |
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127..128 could also be written with subject or described_class
@jaybobo