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pry--pry/spec/history_spec.rb

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require_relative 'helper'
require 'tempfile'
describe Pry do
before do
Pry.history.clear
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@saved_history = "1\n2\n3\n"
Pry.history.loader = proc do |&blk|
@saved_history.lines.each { |l| blk.call(l) }
end
Pry.load_history
end
after do
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Pry.history.clear
Pry.history.restore_default_behavior
Pry.history.instance_variable_set(:@original_lines, 0)
end
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describe '#push' do
it "does not record duplicated lines" do
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Pry.history << '3'
Pry.history << '_ += 1'
Pry.history << '_ += 1'
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expect(Pry.history.to_a.grep('_ += 1').count).to eq 1
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end
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it "does not record empty lines" do
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c = Pry.history.to_a.count
Pry.history << ''
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expect(Pry.history.to_a.count).to eq c
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end
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end
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describe "#clear" do
before do
@old_file = Pry.config.history.file
@hist_file_path = File.expand_path('spec/fixtures/pry_history')
Pry.config.history.file = @hist_file_path
Pry.history.clear
Pry.history.restore_default_behavior
Pry.load_history
end
after do
Pry.config.history.file = @old_file
end
it "clears this session's history" do
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expect(Pry.history.to_a.size).to be > 0
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Pry.history.clear
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expect(Pry.history.to_a.size).to eq 0
expect(Pry.history.original_lines).to eq 0
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end
it "doesn't affect the contents of the history file" do
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expect(Pry.history.to_a.size).to eq 3
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Pry.history.clear
File.open(@hist_file_path, 'r') { |fh|
file = fh.to_a
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expect(file.length).to eq 3
expect(file.any? { |a| a =~ /athos/ }).to eq true
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}
end
end
describe "#history_line_count" do
it "counts entries in history" do
Pry.history.clear
saved_history = "olgierd\ngustlik\njanek\ngrzes\ntomek\n"
Pry.history.loader = proc do |&blk|
saved_history.lines.each { |l| blk.call(l) }
end
Pry.load_history
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expect(Pry.history.history_line_count).to eq 5
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end
end
describe "#restore_default_behavior" do
it "restores loader" do
Pry.history.loader = proc {}
Pry.history.restore_default_behavior
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expect(Pry.history.loader.class).to eq Method
expect(Pry.history.loader.name.to_sym).to eq :read_from_file
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end
it "restores saver" do
Pry.history.saver = proc {}
Pry.history.restore_default_behavior
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expect(Pry.history.saver.class).to eq Method
expect(Pry.history.saver.name.to_sym).to eq :save_to_file
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end
it "restores pusher" do
Pry.history.pusher = proc {}
Pry.history.restore_default_behavior
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expect(Pry.history.pusher.class).to eq Method
expect(Pry.history.pusher.name.to_sym).to eq :push_to_readline
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end
it "restores clearer" do
Pry.history.clearer = proc {}
Pry.history.restore_default_behavior
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expect(Pry.history.clearer.class).to eq Method
expect(Pry.history.clearer.name.to_sym).to eq :clear_readline
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end
end
describe "#session_line_count" do
it "returns the number of lines in history from just this session" do
Pry.history << 'you?'
Pry.history << 'you are so precious'
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expect(Pry.history.session_line_count).to eq 2
end
end
describe ".load_history" do
it "reads the contents of the file" do
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expect(Pry.history.to_a[-2..-1]).to eq %w(2 3)
end
end
describe "saving to a file" do
before do
@histfile = Tempfile.new(["pryhistory", "txt"])
@history = Pry::History.new(:file_path => @histfile.path)
Pry.config.history.should_save = true
@history.pusher = proc{ }
end
after do
@histfile.close(true)
Pry.config.history.should_save = false
end
it "saves lines to a file as they are written" do
@history.push "5"
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expect(File.read(@histfile.path)).to eq "5\n"
end
it "interleaves lines from many places" do
@history.push "5"
File.open(@histfile.path, 'a'){ |f| f.puts "6" }
@history.push "7"
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expect(File.read(@histfile.path)).to eq "5\n6\n7\n"
end
it "should not write histignore words to the history file" do
Pry.config.history.histignore = [ "ls", /hist*/, 'exit' ]
@history.push "ls"
@history.push "hist"
@history.push "kakaroto"
@history.push "exit"
expect(File.open(@histfile.path).entries.size).to eq 1
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expect(IO.readlines(@histfile.path).first).to eq "kakaroto\n"
end
end
describe "expanding the history file path" do
before { Pry.config.history.should_save = true }
after { Pry.config.history.should_save = false }
it "recognizes ~ (#1262)" do
# This is a pretty dumb way of testing this, but at least it shouldn't
# succeed spuriously.
history = Pry::History.new(file_path: '~/test_history')
error = Class.new(RuntimeError)
expect(File).to receive(:open).
with(File.join(ENV['HOME'].to_s, "/test_history"), 'a', 0600).
and_raise(error)
expect { history.push 'a line' }.to raise_error error
end
end
end