Remove off-by-one in history [Fixes #368]

Remove unnecessary stubbing of history in tests that hid the problem.

lib/pry/default_commands/input.rb

@@ -163,7 +163,7 @@ class Pry
         end
 
         def process
-          @history = Pry::Code(Pry.history.to_a[0..-2])
+          @history = Pry::Code(Pry.history.to_a)
 
           @history = case
             when opts.present?(:head)

test/helper.rb

@@ -121,15 +121,12 @@ end
 
 class InputTester
   def initialize(*actions)
-    if actions.last.is_a?(Hash) && actions.last.keys == [:history]
-      @hist = actions.pop[:history]
-    end
     @orig_actions = actions.dup
     @actions = actions
   end
 
   def readline(*)
-    @actions.shift.tap{ |line| @hist << line if @hist }
+    @actions.shift
   end
 
   def rewind

test/test_default_commands/test_input.rb

@@ -235,7 +235,7 @@ describe "Pry::DefaultCommands::Input" do
       @hist.push "hello"
       @hist.push "world"
       str_output = StringIO.new
-      redirect_pry_io(InputTester.new("hist", "exit-all", :history => @hist), str_output) do
+      redirect_pry_io(InputTester.new("hist", "exit-all"), str_output) do
         pry
       end
       str_output.string.should =~ /hello\n.*world/
@@ -246,7 +246,7 @@ describe "Pry::DefaultCommands::Input" do
       @hist.push ":bucket"
       @hist.push ":ostrich"
       str_output = StringIO.new
-      redirect_pry_io(InputTester.new("hist --replay -1", "exit-all", :history => @hist), str_output) do
+      redirect_pry_io(InputTester.new("hist --replay -1", "exit-all"), str_output) do
         pry
       end
       str_output.string.should =~ /ostrich/
@@ -256,7 +256,7 @@ describe "Pry::DefaultCommands::Input" do
       @hist.push ":hello"
       @hist.push ":carl"
       str_output = StringIO.new
-      redirect_pry_io(InputTester.new("hist --replay 0..2", "exit-all", :history => @hist), str_output) do
+      redirect_pry_io(InputTester.new("hist --replay 0..2", "exit-all"), str_output) do
         pry
       end
       str_output.string.should =~ /:hello\n.*:carl/
@@ -274,21 +274,21 @@ describe "Pry::DefaultCommands::Input" do
       @hist.push "place holder"
 
       str_output = StringIO.new
-      redirect_pry_io(InputTester.new("hist --grep o", "exit-all", :history => @hist), str_output) do
+      redirect_pry_io(InputTester.new("hist --grep o", "exit-all"), str_output) do
         pry
       end
       str_output.string.should =~ /\d:.*?box\n\d:.*?button\n\d:.*?orange/
 
       # test more than one word in a regex match (def blah)
       str_output = StringIO.new
-      redirect_pry_io(InputTester.new("hist --grep def blah", "exit-all", :history => @hist), str_output) do
+      redirect_pry_io(InputTester.new("hist --grep def blah", "exit-all"), str_output) do
         pry
       end
       str_output.string.should =~ /def blah 1/
 
       # test more than one word with leading white space in a regex match (def boink)
       str_output = StringIO.new
-      redirect_pry_io(InputTester.new("hist --grep      def boink", "exit-all", :history => @hist), str_output) do
+      redirect_pry_io(InputTester.new("hist --grep      def boink", "exit-all"), str_output) do
         pry
       end
       str_output.string.should =~ /def boink 2/
@@ -300,7 +300,7 @@ describe "Pry::DefaultCommands::Input" do
       end
 
       str_output = StringIO.new
-      redirect_pry_io(InputTester.new("hist --tail 3", "exit-all", :history => @hist), str_output) do
+      redirect_pry_io(InputTester.new("hist --tail 3", "exit-all"), str_output) do
         pry
       end
 
@@ -316,7 +316,7 @@ describe "Pry::DefaultCommands::Input" do
       end
 
       str_output = StringIO.new
-      redirect_pry_io(InputTester.new("hist --head 4", "exit-all", :history => @hist), str_output) do
+      redirect_pry_io(InputTester.new("hist --head 4", "exit-all"), str_output) do
         pry
       end
 
@@ -332,7 +332,7 @@ describe "Pry::DefaultCommands::Input" do
       end
 
       str_output = StringIO.new
-      redirect_pry_io(InputTester.new("hist --show 1..4", "exit-all", :history => @hist), str_output) do
+      redirect_pry_io(InputTester.new("hist --show 1..4", "exit-all"), str_output) do
         pry
       end
 
@@ -342,7 +342,7 @@ describe "Pry::DefaultCommands::Input" do
 
     it "should not contain duplicated lines" do
       str_output = StringIO.new
-      redirect_pry_io(InputTester.new("3", "_ += 1", "_ += 1", "hist", "exit-all", :history => @hist), str_output) do
+      redirect_pry_io(InputTester.new("3", "_ += 1", "_ += 1", "hist", "exit-all"), str_output) do
         pry
       end
 
@@ -351,7 +351,7 @@ describe "Pry::DefaultCommands::Input" do
 
     it "should not contain duplicated lines" do
       str_output = StringIO.new
-      redirect_pry_io(InputTester.new(":place_holder", "2 + 2", "", "", "3 + 3", "hist", "exit-all", :history => @hist), str_output) do
+      redirect_pry_io(InputTester.new(":place_holder", "2 + 2", "", "", "3 + 3", "hist", "exit-all"), str_output) do
         pry
       end