Lint: Harmonize Lambda and Proc syntax

spec/bank/base_spec.rb

@@ -12,7 +12,7 @@
 
   describe "#initialize" do
     it "accepts a block and stores @rounding_method" do
-      proc = Proc.new { |n| n.ceil }
+      proc = proc(&:ceil)
       bank = described_class.new(&proc)
       expect(bank.rounding_method).to eq proc
     end

spec/bank/variable_exchange_spec.rb

@@ -67,7 +67,7 @@
         # end
 
         it "accepts a custom truncation method" do
-          proc = Proc.new { |n| n.ceil }
+          proc = proc(&:ceil)
           expect(bank.exchange_with(Money.new(10, 'USD'), 'EUR', &proc)).to eq Money.new(14, 'EUR')
         end
 
@@ -89,7 +89,7 @@
 
     context "with &block" do
       let(:bank) do
-        proc = Proc.new { |n| n.ceil }
+        proc = proc(&:ceil)
         described_class.new(&proc).tap do |bank|
           bank.add_rate('USD', 'EUR', 1.33)
         end
@@ -101,7 +101,7 @@
         end
 
         it "accepts a custom truncation method" do
-          proc = Proc.new { |n| n.ceil + 1 }
+          proc = proc { |n| n.ceil + 1 }
           expect(bank.exchange_with(Money.new(10, 'USD'), 'EUR', &proc)).to eq Money.new(15, 'EUR')
         end
       end

spec/currency_spec.rb

@@ -447,7 +447,7 @@ def to_s
 
     it "doesn't create new symbols indefinitely" do
       expect { described_class.new("bogus") }.to raise_error(described_class::UnknownCurrency)
-      expect(Symbol.all_symbols.map { |s| s.to_s }).not_to include("bogus")
+      expect(Symbol.all_symbols.map(&:to_s)).not_to include("bogus")
     end
   end
 

spec/money/formatting_spec.rb

@@ -147,7 +147,7 @@
     end
 
     it "respects the thousands_separator and decimal_mark defaults" do
-      one_thousand = Proc.new do |currency|
+      one_thousand = proc do |currency|
         Money.new(1000_00, currency).format
       end
 
@@ -290,7 +290,7 @@
       end
 
       specify "(symbol: true) returns symbol based on the given currency code" do
-        one = Proc.new do |currency|
+        one = proc do |currency|
           Money.new(100, currency).format(symbol: true)
         end
 

spec/money_spec.rb

@@ -1105,7 +1105,7 @@
     end
 
     it "accepts a lambda" do
-      Money.default_currency = lambda { :eur }
+      Money.default_currency = -> { :eur }
       expect(Money.default_currency).to eq Money::Currency.new(:eur)
     end
 
@@ -1132,7 +1132,7 @@
     end
 
     it 'accepts a lambda' do
-      Money.default_bank = lambda { Money::Bank::SingleCurrency.instance }
+      Money.default_bank = -> { Money::Bank::SingleCurrency.instance }
       expect(Money.default_bank).to be_instance_of(Money::Bank::SingleCurrency)
     end
   end