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require 'helper'
require 'tempfile'
describe Pry do
before do
Pry.history.clear
@saved_history = "1\n2\n3\n"
Pry.history.loader = proc do |&blk|
@saved_history.lines.each { |l| blk.call(l) }
end
Pry.history.saver = proc do |lines|
@saved_history << lines.map { |l| "#{l}\n" }.join
end
Pry.load_history
end
after do
Pry.history.clear
Pry.history.restore_default_behavior
end
describe ".load_history" do
it "should read the contents of the file" do
Pry.history.to_a[-2..-1].should == %w(2 3)
end
end
describe ".save_history" do
it "should include a trailing newline" do
Pry.history << "4"
Pry.save_history
@saved_history.should =~ /4\n\z/
end
it "should not change anything if history is not changed" do
@saved_history = "4\n5\n6\n"
Pry.save_history
@saved_history.should == "4\n5\n6\n"
end
it "should append new lines to the file" do
Pry.history << "4"
Pry.save_history
@saved_history.should == "1\n2\n3\n4\n"
end
it "should not clobber lines written by other Pry's in the meantime" do
Pry.history << "5"
@saved_history << "4\n"
Pry.save_history
Pry.history.to_a[-3..-1].should == ["2", "3", "5"]
@saved_history.should == "1\n2\n3\n4\n5\n"
end
it "should not delete lines from the file if this session's history was cleared" do
Pry.history.clear
Pry.save_history
@saved_history.should == "1\n2\n3\n"
end
it "should save new lines that are added after the history was cleared" do
Pry.history.clear
Pry.history << "4"
Pry.save_history
@saved_history.should =~ /1\n2\n3\n4\n/
end
it "should only append new lines the second time it is saved" do
Pry.history << "4"
Pry.save_history
@saved_history << "5\n"
Pry.history << "6"
Pry.save_history
Pry.history.to_a[-4..-1].should == ["2", "3", "4", "6"]
@saved_history.should == "1\n2\n3\n4\n5\n6\n"
end
end
end
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