diff options
Diffstat (limited to 'spec/support/matchers')
-rw-r--r-- | spec/support/matchers/be_sorted.rb | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/spec/support/matchers/be_sorted.rb b/spec/support/matchers/be_sorted.rb new file mode 100644 index 00000000000..1455060fe71 --- /dev/null +++ b/spec/support/matchers/be_sorted.rb @@ -0,0 +1,21 @@ +# frozen_string_literal: true + +# Assert that this collection is sorted by argument and order +# +# By default, this checks that the collection is sorted ascending +# but you can check order by specific field and order by passing +# them, eg: +# +# ``` +# expect(collection).to be_sorted(:field, :desc) +# ``` +RSpec::Matchers.define :be_sorted do |by, order = :asc| + match do |actual| + next true unless actual.present? # emtpy collection is sorted + + actual + .then { |collection| by ? collection.sort_by(&by) : collection.sort } + .then { |sorted_collection| order.to_sym == :desc ? sorted_collection.reverse : sorted_collection } + .then { |sorted_collection| sorted_collection == actual } + end +end |