471 lines
15 KiB
Ruby
471 lines
15 KiB
Ruby
require 'helper'
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describe Pry do
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if RUBY_VERSION =~ /1.9/
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describe "Exotic object support" do
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# regression test for exotic object support
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it "Should not error when return value is a BasicObject instance" do
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lambda do
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redirect_pry_io(InputTester.new("BasicObject.new", "exit-all"), StringIO.new) do
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Pry.start
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end
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end.should.not.raise NoMethodError
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end
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end
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end
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describe "Pry.binding_for" do
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# regression test for burg's bug (see git history)
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it "Should not error when object doesn't have a valid == method" do
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o = Object.new
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def o.==(other)
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raise
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end
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lambda { Pry.binding_for(o) }.should.not.raise Exception
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end
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end
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describe "open a Pry session on an object" do
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describe "rep" do
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before do
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class Hello
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end
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end
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after do
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Object.send(:remove_const, :Hello)
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end
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# bug fix for https://github.com/banister/pry/issues/93
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it 'should not leak pry constants into Object namespace' do
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input_string = "Command"
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str_output = StringIO.new
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o = Object.new
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pry_tester = Pry.new(:input => StringIO.new(input_string),
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:output => str_output,
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:exception_handler => proc { |_, exception, _pry_| @excep = exception },
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:print => proc {}
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).rep(o)
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@excep.is_a?(NameError).should == true
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end
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if defined?(BasicObject)
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it 'should be able to operate inside the BasicObject class' do
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$obj = nil
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redirect_pry_io(InputTester.new(":foo", "$obj = _", "exit-all"), StringIO.new) do
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BasicObject.pry
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end
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$obj.should == :foo
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$obj = nil
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end
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end
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it 'should set an ivar on an object' do
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input_string = "@x = 10"
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input = InputTester.new(input_string)
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o = Object.new
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pry_tester = Pry.new(:input => input, :output => Pry::NullOutput)
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pry_tester.rep(o)
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o.instance_variable_get(:@x).should == 10
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end
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it 'should display error and throw(:breakout) if Pry instance runs out of input' do
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str_output = StringIO.new
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catch(:breakout) do
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redirect_pry_io(StringIO.new(":nothing\n"), str_output) do
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Pry.new.repl
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end
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end
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str_output.string.should =~ /Error: Pry ran out of things to read/
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end
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it 'should make self evaluate to the receiver of the rep session' do
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o = :john
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str_output = StringIO.new
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pry_tester = Pry.new(:input => InputTester.new("self"), :output => str_output)
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pry_tester.rep(o)
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str_output.string.should =~ /:john/
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end
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it 'should work with multi-line input' do
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o = Object.new
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str_output = StringIO.new
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pry_tester = Pry.new(:input => InputTester.new("x = ", "1 + 4"), :output => str_output)
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pry_tester.rep(o)
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str_output.string.should =~ /5/
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end
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it 'should define a nested class under Hello and not on top-level or Pry' do
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pry_tester = Pry.new(:input => InputTester.new("class Nested", "end"), :output => Pry::NullOutput)
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pry_tester.rep(Hello)
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Hello.const_defined?(:Nested).should == true
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end
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it 'should suppress output if input ends in a ";" and is an Exception object (single line)' do
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o = Object.new
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str_output = StringIO.new
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pry_tester = Pry.new(:input => InputTester.new("Exception.new;"), :output => str_output)
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pry_tester.rep(o)
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str_output.string.should == ""
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end
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it 'should suppress output if input ends in a ";" (single line)' do
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o = Object.new
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str_output = StringIO.new
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pry_tester = Pry.new(:input => InputTester.new("x = 5;"), :output => str_output)
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pry_tester.rep(o)
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str_output.string.should == ""
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end
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it 'should suppress output if input ends in a ";" (multi-line)' do
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o = Object.new
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str_output = StringIO.new
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pry_tester = Pry.new(:input => InputTester.new("def self.blah", ":test", "end;"), :output => str_output)
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pry_tester.rep(o)
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str_output.string.should == ""
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end
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it 'should be able to evaluate exceptions normally' do
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o = Exception.new
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str_output = StringIO.new
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was_called = false
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pry_tester = Pry.new(:input => InputTester.new("self"),
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:output => str_output,
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:exception_handler => proc { was_called = true })
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pry_tester.rep(o)
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was_called.should == false
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end
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it 'should notice when exceptions are raised' do
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o = Exception.new
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str_output = StringIO.new
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was_called = false
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pry_tester = Pry.new(:input => InputTester.new("raise self"),
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:output => str_output,
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:exception_handler => proc { was_called = true })
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pry_tester.rep(o)
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was_called.should == true
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end
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it 'should not try to catch intended exceptions' do
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lambda { mock_pry("raise SystemExit") }.should.raise SystemExit
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# SIGTERM
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lambda { mock_pry("raise SignalException.new(15)") }.should.raise SignalException
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end
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end
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describe "repl" do
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describe "basic functionality" do
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it 'should set an ivar on an object and exit the repl' do
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input_strings = ["@x = 10", "exit-all"]
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input = InputTester.new(*input_strings)
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o = Object.new
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pry_tester = Pry.start(o, :input => input, :output => Pry::NullOutput)
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o.instance_variable_get(:@x).should == 10
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end
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end
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describe "complete_expression?" do
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it "should not mutate the input!" do
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clean = "puts <<-FOO\nhi\nFOO\n"
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a = clean.dup
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Pry::Code.complete_expression?(a)
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a.should == clean
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end
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end
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describe "history arrays" do
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it 'sets _ to the last result' do
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res = []
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input = InputTester.new *[":foo", "self << _", "42", "self << _"]
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pry = Pry.new(:input => input, :output => Pry::NullOutput)
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pry.repl(res)
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res.should == [:foo, 42]
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end
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it 'sets out to an array with the result' do
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res = {}
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input = InputTester.new *[":foo", "42", "self[:res] = _out_"]
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pry = Pry.new(:input => input, :output => Pry::NullOutput)
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pry.repl(res)
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res[:res].should.be.kind_of Pry::HistoryArray
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res[:res][1..2].should == [:foo, 42]
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end
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it 'sets _in_ to an array with the entered lines' do
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res = {}
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input = InputTester.new *[":foo", "42", "self[:res] = _in_"]
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pry = Pry.new(:input => input, :output => Pry::NullOutput)
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pry.repl(res)
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res[:res].should.be.kind_of Pry::HistoryArray
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res[:res][1..2].should == [":foo\n", "42\n"]
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end
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it 'uses 100 as the size of _in_ and _out_' do
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res = []
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input = InputTester.new *["self << _out_.max_size << _in_.max_size"]
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pry = Pry.new(:input => input, :output => Pry::NullOutput)
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pry.repl(res)
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res.should == [100, 100]
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end
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it 'can change the size of the history arrays' do
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res = []
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input = InputTester.new *["self << _out_.max_size << _in_.max_size"]
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pry = Pry.new(:input => input, :output => Pry::NullOutput,
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:memory_size => 1000)
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pry.repl(res)
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res.should == [1000, 1000]
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end
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it 'store exceptions' do
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res = []
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input = InputTester.new *["foo!","self << _in_[-1] << _out_[-1]"]
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pry = Pry.new(:input => input, :output => Pry::NullOutput,
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:memory_size => 1000)
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pry.repl(res)
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res.first.should == "foo!\n"
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res.last.should.be.kind_of NoMethodError
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end
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end
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describe "last_result" do
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it "should be set to the most recent value" do
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mock_pry("2", "_ + 82").should =~ /84/
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end
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it "should be set to the result of a command with :keep_retval" do
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mock_pry("Pry::Commands.block_command '++', '', {:keep_retval => true} do |a| a.to_i + 1; end", '++ 86', '++ #{_}').should =~ /88/
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end
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it "should be preserved over an empty line" do
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mock_pry("2 + 2", " ", "\t", " ", "_ + 92").should =~ /96/
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end
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it "should be preserved when evalling a command without :keep_retval" do
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mock_pry("2 + 2", "ls -l", "_ + 96").should =~ /100/
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end
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end
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describe "test loading rc files" do
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before do
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Pry.instance_variable_set(:@initial_session, true)
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end
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after do
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Pry::RC_FILES.clear
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Pry.config.should_load_rc = false
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end
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it "should run the rc file only once" do
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Pry.config.should_load_rc = true
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2.times { Pry::RC_FILES << File.expand_path("../testrc", __FILE__) }
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Pry.start(self, :input => StringIO.new("exit-all\n"), :output => Pry::NullOutput)
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TEST_RC.should == [0]
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Pry.start(self, :input => StringIO.new("exit-all\n"), :output => Pry::NullOutput)
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TEST_RC.should == [0]
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Object.remove_const(:TEST_RC)
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end
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it "should not load the pryrc if it cannot expand ENV[HOME]" do
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old_home = ENV['HOME']
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old_rc = Pry.config.should_load_rc
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ENV['HOME'] = nil
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Pry.config.should_load_rc = true
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lambda { Pry.start(self, :input => StringIO.new("exit-all\n"), :output => Pry::NullOutput) }.should.not.raise
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ENV['HOME'] = old_home
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Pry.config.should_load_rc = old_rc
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end
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it "should not run the rc file at all if Pry.config.should_load_rc is false" do
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Pry.config.should_load_rc = false
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Pry.start(self, :input => StringIO.new("exit-all\n"), :output => Pry::NullOutput)
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Object.const_defined?(:TEST_RC).should == false
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end
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it "should not load the rc file if #repl method invoked" do
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Pry.config.should_load_rc = true
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Pry.new(:input => StringIO.new("exit-all\n"), :output => Pry::NullOutput).repl(self)
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Object.const_defined?(:TEST_RC).should == false
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Pry.config.should_load_rc = false
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end
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describe "that raise exceptions" do
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before do
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Pry::RC_FILES << File.expand_path("../testrcbad", __FILE__)
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Pry.config.should_load_rc = true
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putsed = nil
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# YUCK! horrible hack to get round the fact that output is not configured
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# at the point this message is printed.
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(class << Pry; self; end).send(:define_method, :puts) { |str|
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putsed = str
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}
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@doing_it = lambda{
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Pry.start(self, :input => StringIO.new("Object::TEST_AFTER_RAISE=1\nexit-all\n"), :output => Pry::NullOutput)
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putsed
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}
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end
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after do
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Object.remove_const(:TEST_BEFORE_RAISE)
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Object.remove_const(:TEST_AFTER_RAISE)
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(class << Pry; undef_method :puts; end)
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end
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it "should not raise exceptions" do
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@doing_it.should.not.raise
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end
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it "should continue to run pry" do
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@doing_it[]
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Object.const_defined?(:TEST_BEFORE_RAISE).should == true
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Object.const_defined?(:TEST_AFTER_RAISE).should == true
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end
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it "should output an error" do
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@doing_it[].should =~ /Error loading #{File.expand_path("../testrcbad", __FILE__)}: messin with ya/
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end
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end
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end
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describe "nesting" do
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after do
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Pry.reset_defaults
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Pry.color = false
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end
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it 'should nest properly' do
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Pry.input = InputTester.new("cd 1", "cd 2", "cd 3", "\"nest:\#\{(_pry_.binding_stack.size - 1)\}\"", "exit-all")
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str_output = StringIO.new
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Pry.output = str_output
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o = Object.new
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pry_tester = o.pry
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str_output.string.should =~ /nest:3/
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end
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end
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describe "defining methods" do
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it 'should define a method on the singleton class of an object when performing "def meth;end" inside the object' do
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[Object.new, {}, []].each do |val|
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str_input = StringIO.new("def hello;end")
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Pry.new(:input => str_input, :output => StringIO.new).rep(val)
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val.methods(false).map(&:to_sym).include?(:hello).should == true
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end
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end
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it 'should define an instance method on the module when performing "def meth;end" inside the module' do
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str_input = StringIO.new("def hello;end")
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hello = Module.new
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Pry.new(:input => str_input, :output => StringIO.new).rep(hello)
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hello.instance_methods(false).map(&:to_sym).include?(:hello).should == true
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end
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it 'should define an instance method on the class when performing "def meth;end" inside the class' do
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str_input = StringIO.new("def hello;end")
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hello = Class.new
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Pry.new(:input => str_input, :output => StringIO.new).rep(hello)
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hello.instance_methods(false).map(&:to_sym).include?(:hello).should == true
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end
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it 'should define a method on the class of an object when performing "def meth;end" inside an immediate value or Numeric' do
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# should include float in here, but test fails for some reason
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# on 1.8.7, no idea why!
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[:test, 0, true, false, nil].each do |val|
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str_input = StringIO.new("def hello;end")
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Pry.new(:input => str_input, :output => StringIO.new).rep(val)
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val.class.instance_methods(false).map(&:to_sym).include?(:hello).should == true
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end
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end
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end
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describe "Object#pry" do
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after do
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Pry.reset_defaults
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Pry.color = false
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end
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it "should start a pry session on the receiver (first form)" do
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Pry.input = InputTester.new("self", "exit-all")
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str_output = StringIO.new
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Pry.output = str_output
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20.pry
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str_output.string.should =~ /20/
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end
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it "should start a pry session on the receiver (second form)" do
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Pry.input = InputTester.new("self", "exit-all")
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str_output = StringIO.new
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Pry.output = str_output
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pry 20
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str_output.string.should =~ /20/
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end
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it "should raise if more than two arguments are passed to Object#pry" do
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lambda { pry(20, :quiet, :input => Readline) }.should.raise ArgumentError
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end
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end
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describe "Pry.binding_for" do
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it 'should return TOPLEVEL_BINDING if parameter self is main' do
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_main_ = lambda { TOPLEVEL_BINDING.eval('self') }
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Pry.binding_for(_main_.call).is_a?(Binding).should == true
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Pry.binding_for(_main_.call).should == TOPLEVEL_BINDING
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Pry.binding_for(_main_.call).should == Pry.binding_for(_main_.call)
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end
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end
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end
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end
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describe 'setting custom options' do
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it 'should not raise for unrecognized options' do
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should.not.raise?(NoMethodError) {
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instance = Pry.new(:custom_option => 'custom value')
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}
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end
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end
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end
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