My initial commit, with a fixed tree. #65
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jaybobo
reviewed
Mar 21, 2018
| FRUIT_AGE = 2 | ||
| GROWTH_PER_YEAR = 2 # inches | ||
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| attr_accessor :height, :age, :apples, :alive |
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should everything be writable? you can make these private as well.
class Foo
def bar
baz = 'bang'
end
private
attr_accessor :baz
end| end | ||
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| def pick_an_apple! | ||
| raise NoApplesError, "This tree has no apples" unless self.any_apples? | ||
| raise NoApplesError, 'This tree has no apples' unless any_apples? |
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We've used a bang for this method name because it may possibly raise an error. If this mutates data, we may also use a bang.
| end | ||
| end | ||
| else | ||
| @alive = false |
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It's good practice to use getters/setters when you can instead of ivars. One you may want to redefine a getter say...
def apples
@apples ||= []
end
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| describe '#any_apples?' do | ||
| it 'should return false for a new Tree without apples' do | ||
| tree = Tree.new |
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See subject and .let those are preferred here.
http://betterspecs.org/
| expect { tree.pick_an_apple! }.to raise_error(NoApplesError) | ||
| end | ||
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| red_apple = Apple.new('red', 1) |
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See my other comment about subject and let
| expect(tree.any_apples?).to eq(false) | ||
| end | ||
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| it 'should return true for a Tree that has apples' do |
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This is a good case for using a context. Contexts can also be nested.
describe '#any_apples?' do
context 'a tree with apples' do
it 'returns true' do
..
end
end
context 'a tree without apples' do
it 'returns false' do
..
end
end
end
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@jaybobo, please review at your leisure.