393 lines
12 KiB
Ruby
393 lines
12 KiB
Ruby
require 'helper'
|
|
|
|
describe Pry do
|
|
before do
|
|
@str_output = StringIO.new
|
|
end
|
|
|
|
describe "Exotic object support" do
|
|
# regression test for exotic object support
|
|
it "Should not error when return value is a BasicObject instance" do
|
|
ReplTester.start do
|
|
input('BasicObject.new').should =~ /^=> #<BasicObject:/
|
|
end
|
|
end
|
|
end
|
|
|
|
describe 'DISABLE_PRY' do
|
|
before do
|
|
ENV['DISABLE_PRY'] = 'true'
|
|
end
|
|
|
|
after do
|
|
ENV.delete 'DISABLE_PRY'
|
|
end
|
|
|
|
it 'should not binding.pry' do
|
|
binding.pry.should == nil
|
|
end
|
|
|
|
it 'should not Pry.start' do
|
|
Pry.start.should == nil
|
|
end
|
|
end
|
|
|
|
describe "Pry.critical_section" do
|
|
it "should prevent Pry being called" do
|
|
output = StringIO.new
|
|
Pry.output = output
|
|
Pry.critical_section do
|
|
Pry.start
|
|
end
|
|
output.string.should =~ /Pry started inside Pry/
|
|
end
|
|
end
|
|
|
|
describe "Pry.binding_for" do
|
|
|
|
# regression test for burg's bug (see git history)
|
|
it "Should not error when object doesn't have a valid == method" do
|
|
o = Object.new
|
|
def o.==(other)
|
|
raise
|
|
end
|
|
|
|
lambda { Pry.binding_for(o) }.should.not.raise Exception
|
|
end
|
|
|
|
it "should not leak local variables" do
|
|
[Object.new, Array, 3].each do |obj|
|
|
Pry.binding_for(obj).eval("local_variables").should.be.empty
|
|
end
|
|
end
|
|
|
|
it "should work on frozen objects" do
|
|
a = "hello".freeze
|
|
Pry.binding_for(a).eval("self").should.equal? a
|
|
end
|
|
end
|
|
|
|
describe "open a Pry session on an object" do
|
|
describe "rep" do
|
|
before do
|
|
class Hello
|
|
end
|
|
end
|
|
|
|
after do
|
|
Object.send(:remove_const, :Hello)
|
|
end
|
|
|
|
# bug fix for https://github.com/banister/pry/issues/93
|
|
it 'should not leak pry constants into Object namespace' do
|
|
lambda{
|
|
pry_eval(Object.new, "Command")
|
|
}.should.raise(NameError)
|
|
end
|
|
|
|
it 'should be able to operate inside the BasicObject class' do
|
|
pry_eval(BasicObject, ":foo", "Pad.obj = _")
|
|
Pad.obj.should == :foo
|
|
end
|
|
|
|
it 'should set an ivar on an object' do
|
|
o = Object.new
|
|
pry_eval(o, "@x = 10")
|
|
o.instance_variable_get(:@x).should == 10
|
|
end
|
|
|
|
it 'should display error if Pry instance runs out of input' do
|
|
redirect_pry_io(StringIO.new, @str_output) do
|
|
Pry.start
|
|
end
|
|
@str_output.string.should =~ /Error: Pry ran out of things to read/
|
|
end
|
|
|
|
it 'should make self evaluate to the receiver of the rep session' do
|
|
o = :john
|
|
pry_eval(o, "self").should == o
|
|
end
|
|
|
|
it 'should define a nested class under Hello and not on top-level or Pry' do
|
|
mock_pry(Pry.binding_for(Hello), "class Nested", "end")
|
|
Hello.const_defined?(:Nested).should == true
|
|
end
|
|
|
|
it 'should suppress output if input ends in a ";" and is an Exception object (single line)' do
|
|
mock_pry("Exception.new;").should == ""
|
|
end
|
|
|
|
it 'should suppress output if input ends in a ";" (single line)' do
|
|
mock_pry("x = 5;").should == ""
|
|
end
|
|
|
|
it 'should be able to evaluate exceptions normally' do
|
|
was_called = false
|
|
mock_pry("RuntimeError.new", :exception_handler => proc{ was_called = true })
|
|
was_called.should == false
|
|
end
|
|
|
|
it 'should notice when exceptions are raised' do
|
|
was_called = false
|
|
mock_pry("raise RuntimeError", :exception_handler => proc{ was_called = true })
|
|
was_called.should == true
|
|
end
|
|
|
|
it 'should not try to catch intended exceptions' do
|
|
lambda { mock_pry("raise SystemExit") }.should.raise SystemExit
|
|
# SIGTERM
|
|
lambda { mock_pry("raise SignalException.new(15)") }.should.raise SignalException
|
|
end
|
|
|
|
describe "multi-line input" do
|
|
it "works" do
|
|
mock_pry('x = ', '1 + 4').should =~ /5/
|
|
end
|
|
|
|
it 'should suppress output if input ends in a ";" (multi-line)' do
|
|
mock_pry('def self.blah', ':test', 'end;').should == ''
|
|
end
|
|
|
|
describe "newline stripping from an empty string" do
|
|
it "with double quotes" do
|
|
mock_pry('"', '"').should =~ %r|"\\n"|
|
|
mock_pry('"', "\n", "\n", "\n", '"').should =~ %r|"\\n\\n\\n\\n"|
|
|
end
|
|
|
|
it "with single quotes" do
|
|
mock_pry("'", "'").should =~ %r|"\\n"|
|
|
mock_pry("'", "\n", "\n", "\n", "'").should =~ %r|"\\n\\n\\n\\n"|
|
|
end
|
|
|
|
it "with fancy delimiters" do
|
|
mock_pry('%(', ')').should =~ %r|"\\n"|
|
|
mock_pry('%|', "\n", "\n", '|').should =~ %r|"\\n\\n\\n"|
|
|
mock_pry('%q[', "\n", "\n", ']').should =~ %r|"\\n\\n\\n"|
|
|
end
|
|
end
|
|
|
|
describe "newline stripping from an empty regexp" do
|
|
it "with regular regexp delimiters" do
|
|
mock_pry('/', '/').should =~ %r{/\n/}
|
|
end
|
|
|
|
it "with fancy delimiters" do
|
|
mock_pry('%r{', "\n", "\n", '}').should =~ %r{/\n\n\n/}
|
|
mock_pry('%r<', "\n", '>').should =~ %r{/\n\n/}
|
|
end
|
|
end
|
|
|
|
describe "newline from an empty heredoc" do
|
|
it "works" do
|
|
mock_pry('<<HERE', 'HERE').should =~ %r|""|
|
|
mock_pry("<<'HERE'", "\n", 'HERE').should =~ %r|"\\n"|
|
|
mock_pry("<<-'HERE'", "\n", "\n", 'HERE').should =~ %r|"\\n\\n"|
|
|
end
|
|
end
|
|
end
|
|
end
|
|
|
|
describe "repl" do
|
|
describe "basic functionality" do
|
|
it 'should set an ivar on an object and exit the repl' do
|
|
input_strings = ["@x = 10", "exit-all"]
|
|
input = InputTester.new(*input_strings)
|
|
|
|
o = Object.new
|
|
|
|
pry_tester = Pry.start(o, :input => input, :output => StringIO.new)
|
|
|
|
o.instance_variable_get(:@x).should == 10
|
|
end
|
|
end
|
|
|
|
describe "complete_expression?" do
|
|
it "should not mutate the input!" do
|
|
clean = "puts <<-FOO\nhi\nFOO\n"
|
|
a = clean.dup
|
|
Pry::Code.complete_expression?(a)
|
|
a.should == clean
|
|
end
|
|
end
|
|
|
|
describe "history arrays" do
|
|
it 'sets _ to the last result' do
|
|
t = pry_tester
|
|
t.eval ":foo"
|
|
t.eval("_").should == :foo
|
|
t.eval "42"
|
|
t.eval("_").should == 42
|
|
end
|
|
|
|
it 'sets out to an array with the result' do
|
|
t = pry_tester
|
|
t.eval ":foo"
|
|
t.eval "42"
|
|
res = t.eval "_out_"
|
|
|
|
res.should.be.kind_of Pry::HistoryArray
|
|
res[1..2].should == [:foo, 42]
|
|
end
|
|
|
|
it 'sets _in_ to an array with the entered lines' do
|
|
t = pry_tester
|
|
t.eval ":foo"
|
|
t.eval "42"
|
|
res = t.eval "_in_"
|
|
|
|
res.should.be.kind_of Pry::HistoryArray
|
|
res[1..2].should == [":foo\n", "42\n"]
|
|
end
|
|
|
|
it 'uses 100 as the size of _in_ and _out_' do
|
|
pry_tester.eval("[_in_.max_size, _out_.max_size]").should == [100, 100]
|
|
end
|
|
|
|
it 'can change the size of the history arrays' do
|
|
pry_tester(:memory_size => 1000).eval("[_out_, _in_].map(&:max_size)").should == [1000, 1000]
|
|
end
|
|
|
|
it 'store exceptions' do
|
|
mock_pry("foo!", "Pad.in = _in_[-1]; Pad.out = _out_[-1]")
|
|
|
|
Pad.in.should == "foo!\n"
|
|
Pad.out.should.be.kind_of NoMethodError
|
|
end
|
|
end
|
|
|
|
describe "last_result" do
|
|
it "should be set to the most recent value" do
|
|
pry_eval("2", "_ + 82").should == 84
|
|
end
|
|
|
|
# This test needs mock_pry because the command retvals work by
|
|
# replacing the eval_string, so _ won't be modified without Pry doing
|
|
# a REPL loop.
|
|
it "should be set to the result of a command with :keep_retval" do
|
|
Pry::Commands.block_command '++', '', :keep_retval => true do |a|
|
|
a.to_i + 1
|
|
end
|
|
|
|
mock_pry('++ 86', '++ #{_}').should =~ /88/
|
|
end
|
|
|
|
it "should be preserved over an empty line" do
|
|
pry_eval("2 + 2", " ", "\t", " ", "_ + 92").should == 96
|
|
end
|
|
|
|
it "should be preserved when evalling a command without :keep_retval" do
|
|
pry_eval("2 + 2", "ls -l", "_ + 96").should == 100
|
|
end
|
|
end
|
|
|
|
describe "nesting" do
|
|
after do
|
|
Pry.reset_defaults
|
|
Pry.color = false
|
|
end
|
|
|
|
it 'should nest properly' do
|
|
Pry.input = InputTester.new("cd 1", "cd 2", "cd 3", "\"nest:\#\{(_pry_.binding_stack.size - 1)\}\"", "exit-all")
|
|
|
|
Pry.output = @str_output
|
|
|
|
o = Object.new
|
|
|
|
pry_tester = o.pry
|
|
@str_output.string.should =~ /nest:3/
|
|
end
|
|
end
|
|
|
|
describe "defining methods" do
|
|
it 'should define a method on the singleton class of an object when performing "def meth;end" inside the object' do
|
|
[Object.new, {}, []].each do |val|
|
|
pry_eval(val, 'def hello; end')
|
|
val.methods(false).map(&:to_sym).include?(:hello).should == true
|
|
end
|
|
end
|
|
|
|
it 'should define an instance method on the module when performing "def meth;end" inside the module' do
|
|
hello = Module.new
|
|
pry_eval(hello, "def hello; end")
|
|
hello.instance_methods(false).map(&:to_sym).include?(:hello).should == true
|
|
end
|
|
|
|
it 'should define an instance method on the class when performing "def meth;end" inside the class' do
|
|
hello = Class.new
|
|
pry_eval(hello, "def hello; end")
|
|
hello.instance_methods(false).map(&:to_sym).include?(:hello).should == true
|
|
end
|
|
|
|
it 'should define a method on the class of an object when performing "def meth;end" inside an immediate value or Numeric' do
|
|
[:test, 0, true, false, nil,
|
|
(0.0 unless Pry::Helpers::BaseHelpers.jruby?)].each do |val|
|
|
pry_eval(val, "def hello; end");
|
|
val.class.instance_methods(false).map(&:to_sym).include?(:hello).should == true
|
|
end
|
|
end
|
|
end
|
|
|
|
describe "Object#pry" do
|
|
|
|
after do
|
|
Pry.reset_defaults
|
|
Pry.color = false
|
|
end
|
|
|
|
it "should start a pry session on the receiver (first form)" do
|
|
Pry.input = InputTester.new("self", "exit-all")
|
|
|
|
str_output = StringIO.new
|
|
Pry.output = str_output
|
|
|
|
20.pry
|
|
|
|
str_output.string.should =~ /20/
|
|
end
|
|
|
|
it "should start a pry session on the receiver (second form)" do
|
|
Pry.input = InputTester.new("self", "exit-all")
|
|
|
|
str_output = StringIO.new
|
|
Pry.output = str_output
|
|
|
|
pry 20
|
|
|
|
str_output.string.should =~ /20/
|
|
end
|
|
|
|
it "should raise if more than two arguments are passed to Object#pry" do
|
|
lambda { pry(20, :quiet, :input => Readline) }.should.raise ArgumentError
|
|
end
|
|
end
|
|
|
|
describe "Pry.binding_for" do
|
|
it 'should return TOPLEVEL_BINDING if parameter self is main' do
|
|
_main_ = lambda { TOPLEVEL_BINDING.eval('self') }
|
|
Pry.binding_for(_main_.call).is_a?(Binding).should == true
|
|
Pry.binding_for(_main_.call).should == TOPLEVEL_BINDING
|
|
Pry.binding_for(_main_.call).should == Pry.binding_for(_main_.call)
|
|
end
|
|
end
|
|
end
|
|
end
|
|
|
|
describe 'setting custom options' do
|
|
it 'should not raise for unrecognized options' do
|
|
should.not.raise?(NoMethodError) {
|
|
instance = Pry.new(:custom_option => 'custom value')
|
|
}
|
|
end
|
|
end
|
|
|
|
describe "a fresh instance" do
|
|
it "should use `caller` as its backtrace" do
|
|
location = "#{__FILE__}:#{__LINE__ + 1}"[1..-1] # omit leading .
|
|
backtrace = Pry.new.backtrace
|
|
|
|
backtrace.should.not.be.nil
|
|
backtrace.any? { |l| l.include?(location) }.should.be.true
|
|
end
|
|
end
|
|
end
|