From e41e39fb69b2325e0616191ff7257bad8e514842 Mon Sep 17 00:00:00 2001 From: kheen Date: Fri, 9 Mar 2018 23:00:52 -0600 Subject: [PATCH 1/2] part 1 done --- lib/retail_transaction.rb | 5 +++++ test/retail_transaction_test.rb | 29 +++++++++++++++++++++++++++++ 2 files changed, 34 insertions(+) diff --git a/lib/retail_transaction.rb b/lib/retail_transaction.rb index 1bfa0e3..5bb48d6 100644 --- a/lib/retail_transaction.rb +++ b/lib/retail_transaction.rb @@ -39,6 +39,11 @@ def paid? state :processing_payment state :payment_declined state :settled + state :refunded + + event :refund do + transitions from: :settled, to: :refunded + end event :check_out do transitions from: :ringing_up, to: :collecting_payment, diff --git a/test/retail_transaction_test.rb b/test/retail_transaction_test.rb index 823cbfe..6fff2db 100644 --- a/test/retail_transaction_test.rb +++ b/test/retail_transaction_test.rb @@ -12,6 +12,7 @@ assert_equal false, tx.processing_payment? assert_equal false, tx.settled? assert_equal false, tx.payment_declined? + assert_equal false, tx.refunded? end it "starts out empty" do @@ -74,6 +75,10 @@ tx.process_payment! end + it "cannot be refunded" do + assert_equal false, tx.may_refund? + end + it "cannot add more items" do assert_raises do tx.add_item("roller skates") @@ -152,5 +157,29 @@ it "cannot be reopened" do assert_invalid_transition { tx.reopen! } end + + it "can be refunded" do + assert_equal true, tx.may_refund? + end end + + describe "that is refunded" do + before(:each) do + tx.add_item("bobcat") + tx.check_out! + tx.payment_info = "15 cents and a nail" + tx.process_payment! + tx.payment_authorized! + tx.refund! + end + + it "cannot be refunded again" do + assert_equal false, tx.may_refund? + end + + it "cannot be reopened" do + assert_equal false, tx.may_reopen? + end +end + end From f88971c26b9be6e6e9e73d83ca52fdc299ee8ca6 Mon Sep 17 00:00:00 2001 From: kheen Date: Sat, 10 Mar 2018 00:13:37 -0600 Subject: [PATCH 2/2] part 2 done --- lib/desugaring.rb | 34 ++++++++++++++++++++++++++-------- 1 file changed, 26 insertions(+), 8 deletions(-) diff --git a/lib/desugaring.rb b/lib/desugaring.rb index 8d52908..4145bb6 100644 --- a/lib/desugaring.rb +++ b/lib/desugaring.rb @@ -21,7 +21,9 @@ def all_the_sugar(recipients, event, message) # Copy the contents of the previous method here and remove this sugar. # def desugared_poetry(recipients, event, message) - implement_me! + mail(message, + to: recipients.map(&:email), + subject: "You’re invited to #{event.title} on #{event.date}") end # Ruby allows you to pass arguments identified by name instead of just by position. They are really just @@ -36,7 +38,9 @@ def desugared_poetry(recipients, event, message) # Copy the contents of the previous method here and remove this sugar. # def desugared_named_args(recipients, event, message) - implement_me! + mail(message, { + to: recipients.map(&:email), + subject: "You’re invited to #{event.title} on #{event.date}"}) end # Ruby’s general syntax for hashes is `{key => value, key => value, ...}`. Because it is so common to use @@ -51,7 +55,9 @@ def desugared_named_args(recipients, event, message) # Copy the contents of the previous method here and remove this sugar. # def desugared_symbol_keys(recipients, event, message) - implement_me! + mail(message, { + :to => recipients.map(&:email), + :subject => "You’re invited to #{event.title} on #{event.date}"}) end # You may be wondering how `map(&:email)` works. When you precede the last argument of a method call with @@ -70,7 +76,9 @@ def desugared_symbol_keys(recipients, event, message) # Copy the contents of the previous method here and remove this sugar. # def desugared_attr_proc(recipients, event, message) - implement_me! + mail(message, { + :to => recipients.map { |x| x.email }, + :subject => "You’re invited to #{event.title} on #{event.date}"}) end # You may recall from the Ruby koans that when you put `#{something}` in a `"`-delimited string, Ruby will @@ -88,7 +96,9 @@ def desugared_attr_proc(recipients, event, message) # Copy the contents of the previous method here and remove this sugar. # def desugared_interpolation(recipients, event, message) - implement_me! + mail(message, { + :to => recipients.map { |x| x.email }, + :subject => "You’re invited to " + event.title.to_s + " on " + event.date.to_s}) end # Ruby tracks local variables lexically at compile time. Wherever you say `x = y`, the compiler assumes that @@ -110,7 +120,9 @@ def desugared_interpolation(recipients, event, message) # (Think: which names are local variables, and which are not?) # def desugared_implicit_self(recipients, event, message) - implement_me! + self.mail(message, { + :to => recipients.map { |x| x.email }, + :subject => "You’re invited to " + event.title.to_s + " on " + event.date.to_s}) end # In Ruby, unlike Python, there are no properties distinct from method calls. When you say `x.y`, you are @@ -131,7 +143,9 @@ def desugared_implicit_self(recipients, event, message) # but structurally quite similar! # def desugared_implicit_parens(recipients, event, message) - implement_me! + self.mail(message, { + :to => recipients.map { |x| x.email() }, + :subject => "You’re invited to " + event.title().to_s() + " on " + event.date().to_s()}) end # In Ruby, every value is an object and every action is a method call. That includes operators. A binary @@ -153,7 +167,11 @@ def desugared_implicit_parens(recipients, event, message) # get added before the things on the right. (a + b + c) means ((a + b) + c), NOT (a + (b + c)). # def desugared_operators(recipients, event, message) - implement_me! + self.mail(message, { + :to => recipients.map { |x| x.email() }, + :subject => "You’re invited to " + .+(event.title().to_s() + .+(" on " + event.date().to_s()))}) end # Compare that to the version at the top.