Sample weekly when querying over 365 days

CHANGELOG.md

@@ -3,6 +3,8 @@ All notable changes to this project will be documented in this file.
 This project adheres to [Semantic Versioning](http://semver.org/).
 
 ## [Unreleased]
+### Changed
+- Sample weekly when querying over 365 days
 
 ## 1.0.0 - 2020-01-02
 ### Fixed

lib/currency.rb

@@ -18,8 +18,7 @@ class Currency < Sequel::Model(Day.currencies)
     def between(interval)
       case interval.last - interval.first
       when 0..90 then super
-      when 91..365 then super.sample('week')
-      else super.sample('month')
+      when 91.. then super.sample('week')
       end
     end
 

spec/currency_spec.rb

@@ -21,16 +21,11 @@ describe Currency do
       Currency.between(interval).map(:date).uniq.count.must_be :>, 30
     end
 
-    it 'samples weekly over 90 but below 366 days' do
+    it 'samples weekly over 90 days' do
       interval = day..day + 365
       Currency.between(interval).map(:date).uniq.count.must_be :<=, 52
     end
 
-    it 'samples monthly over 365 days' do
-      interval = day..day + 400
-      Currency.between(interval).map(:date).uniq.count.must_be :<=, 120
-    end
-
     it 'sorts by date' do
       interval = day..day + 100
       dates = Currency.between(interval).map(:date)