Add option 'at'

spec/period_spec.rb

@@ -13,6 +13,23 @@ describe Periodicity::Period do
         @period = Periodicity::Period.new(2.day)
         expect(@period.next).to be_eql(2.day.from_now)
       end
+
+      it "should set time to 'at' time as a string" do
+        @period = Periodicity::Period.new(2.day, at: "15:20")
+        expect(@period.next).to be_eql(2.day.from_now.change(hour: 15, min: 20))
+      end
+
+      it "should set time to 'at' time as a hash" do
+        at = {hour: 18, min: 45}
+        @period = Periodicity::Period.new(2.day, at: at)
+        expect(@period.next).to be_eql(2.day.from_now.change(at))
+      end
+
+      it "should raise error when 'at' is wrong" do
+        expect {
+          @period = Periodicity::Period.new(2.day, at: 1)
+        }.to raise_error("Unknown 'at' format")
+      end
     end
   end
 end

spec/spec_helper.rb

@@ -4,6 +4,5 @@ Bundler.setup
 require 'timecop'
 require 'periodicity'
 
-
 RSpec.configure do |config|
 end