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pry--pry/spec/sticky_locals_spec.rb

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require_relative 'helper'
describe "Sticky locals (_file_ and friends)" do
it 'locals should all exist upon initialization' do
expect { pry_eval '_file_', '_dir_', '_ex_', '_pry_', '_' }.to_not raise_error
end
it 'locals should still exist after cd-ing into a new context' do
expect { pry_eval 'cd 0', '_file_', '_dir_', '_ex_', '_pry_', '_' }.to_not raise_error
end
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it 'locals should keep value after cd-ing (_pry_)' do
pry_tester.tap do |t|
pry = t.eval '_pry_'
t.eval 'cd 0'
t.eval('_pry_').should == pry
end
end
describe '_ex_' do
it 'returns the last exception without wrapping it in a LastException' do
ReplTester.start do
input 'raise "halp"'
input '_ex_.message == "halp"'
output '=> true'
input 'Kernel.instance_method(:class).bind(_ex_).call'
output '=> RuntimeError'
end
end
it 'keeps its value after cd-ing' do
ReplTester.start do
input 'error blah'
input '$x = _ex_'
input 'cd 0'
input '_ex_ == $x'
output '=> true'
end
end
end
it 'locals should keep value after cd-ing (_file_ and _dir_)' do
Pry.config.commands.command "file-and-dir-test" do
set_file_and_dir_locals("/blah/ostrich.rb")
end
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pry_eval('file-and-dir-test', 'cd 0', '_file_').
should =~ /\/blah\/ostrich\.rb/
pry_eval('file-and-dir-test', 'cd 0', '_dir_').
should =~ /\/blah/
Pry.config.commands.delete "file-and-dir-test"
end
it 'locals should return last result (_)' do
pry_tester.tap do |t|
lam = t.eval 'lambda { |foo| }'
t.eval('_').should == lam
end
end
it 'locals should return second last result (__)' do
pry_tester.tap do |t|
lam = t.eval 'lambda { |foo| }'
t.eval 'num = 1'
t.eval('__').should == lam
end
end
describe "User defined sticky locals" do
describe "setting as Pry.config option" do
it 'should define a new sticky local for the session (normal value)' do
Pry.config.extra_sticky_locals[:test_local] = :john
o = Object.new
redirect_pry_io(InputTester.new("@value = test_local",
"exit-all")) do
Pry.start(o)
end
o.instance_variable_get(:@value).should == :john
Pry.config.extra_sticky_locals = {}
end
it 'should define a new sticky local for the session (proc)' do
Pry.config.extra_sticky_locals[:test_local] = proc { :john }
o = Object.new
redirect_pry_io(InputTester.new("@value = test_local",
"exit-all")) do
Pry.start(o)
end
o.instance_variable_get(:@value).should == :john
Pry.config.extra_sticky_locals = {}
end
end
describe "passing in as hash option when creating pry instance" do
it 'should define a new sticky local for the session (normal value)' do
o = Object.new
redirect_pry_io(InputTester.new("@value = test_local",
"exit-all")) do
Pry.start(o, :extra_sticky_locals => { :test_local => :john } )
end
o.instance_variable_get(:@value).should == :john
end
it 'should define multiple sticky locals' do
o = Object.new
redirect_pry_io(InputTester.new("@value1 = test_local1",
"@value2 = test_local2",
"exit-all")) do
Pry.start(o, :extra_sticky_locals => { :test_local1 => :john ,
:test_local2 => :carl} )
end
o.instance_variable_get(:@value1).should == :john
o.instance_variable_get(:@value2).should == :carl
end
it 'should define a new sticky local for the session (as Proc)' do
o = Object.new
redirect_pry_io(InputTester.new("@value = test_local",
"exit-all")) do
Pry.start(o, :extra_sticky_locals => { :test_local => proc { :john }} )
end
o.instance_variable_get(:@value).should == :john
end
end
describe "hash option value should override config value" do
it 'should define a new sticky local for the session (normal value)' do
Pry.config.extra_sticky_locals[:test_local] = :john
o = Object.new
redirect_pry_io(InputTester.new("@value = test_local",
"exit-all")) do
Pry.start(o, :extra_sticky_locals => { :test_local => :carl })
end
o.instance_variable_get(:@value).should == :carl
Pry.config.extra_sticky_locals = {}
end
end
it 'should create a new sticky local' do
t = pry_tester
t.eval "_pry_.add_sticky_local(:test_local){ :test_value }"
t.eval("test_local").should == :test_value
end
it 'should still exist after cd-ing into new binding' do
t = pry_tester
t.eval "_pry_.add_sticky_local(:test_local){ :test_value }"
t.eval "cd Object.new"
t.eval("test_local").should == :test_value
end
it 'should provide different values for successive block invocations' do
pry = Pry.new
pry.push_binding binding
pry.add_sticky_local(:test_local) { rand }
value1 = pry.evaluate_ruby 'test_local'
value2 = pry.evaluate_ruby 'test_local'
value1.should_not == value2
end
end
end