Skip to content

add max_by #6

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Open
wants to merge 2 commits into
base: master
Choose a base branch
from
Open

add max_by #6

Changes from all commits
Commits
Show all changes
2 commits
Select commit Hold shift + click to select a range
1ca5e79
add max_by
lislis Feb 16, 2015
f6cc9aa
fix the specs
lislis Feb 24, 2015
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
20 changes: 20 additions & 0 deletions max_by_spec.rb
View file
Open in desktop
Original file line number Diff line number Diff line change
@@ -0,0 +1,20 @@

describe 'max_by' do

sweet_stuff = ['cheesecake', 'lemon cake', 'almond tarte', 'blondies']

it 'returns an Enumerator when no block is given' do
expect(sweet_stuff.max_by).to be_an Enumerator
end

it 'returns the maximum value from the given block' do
expect(sweet_stuff.max_by { |nom| nom }).to eq 'lemon cake'
expect(sweet_stuff.max_by { |nom| nom.length }).to eq 'almond tarte'
end

it 'takes an optional argument that determines how many values are returned ' do
# expect(sweet_stuff.max_by(2) { |nom| nom }).to eq ['lemon cake', 'cheesecake']
expect(sweet_stuff.sort.reverse.first(2)).to eq ['lemon cake', 'cheesecake']
end

end