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|
require "fixtures/show_source_doc_examples"
describe "show-source" do
before do
@o = Object.new
def @o.sample_method
:sample
end
Object.remove_const :Test if Object.const_defined? :Test
Object.const_set(:Test, Module.new)
end
after do
Pad.clear
end
it "should output a method's source" do
expect(pry_eval(binding, 'show-source @o.sample_method')).to match(/def @o.sample/)
end
it "should output help" do
expect(pry_eval('show-source -h')).to match(/Usage:\s+show-source/)
end
it "should output a method's source with line numbers" do
expect(pry_eval(binding, 'show-source -l @o.sample_method')).to match(/\d+: def @o.sample/)
end
it "should output a method's source with line numbers starting at 1" do
expect(pry_eval(binding, 'show-source -b @o.sample_method')).to match(/1: def @o.sample/)
end
it "should output a method's source if inside method and no name given" do
def @o.sample
pry_eval(binding, 'show-source').should =~ /def @o.sample/
end
@o.sample
end
it "should output a method's source inside method using the -l switch" do
def @o.sample
pry_eval(binding, 'show-source -l').should =~ /def @o.sample/
end
@o.sample
end
it "should find methods even if there are spaces in the arguments" do
def @o.foo(*_bars)
@foo = "Mr flibble"
self
end
out = pry_eval(binding, "show-source @o.foo('bar', 'baz bam').foo")
expect(out).to match(/Mr flibble/)
end
it "should find methods even if the object overrides method method" do
_c = Class.new do
def method
98
end
end
expect(pry_eval(binding, "show-source _c.new.method")).to match(/98/)
end
it "should not show the source when a non-extant method is requested" do
_c = Class.new { def method; 98; end }
expect(mock_pry(binding, "show-source _c#wrongmethod")).to match(/Couldn't locate/)
end
it "should not show the source and deliver an error message without exclamation point" do
_c = Class.new
error_message = "Error: Couldn't locate a definition for _c#wrongmethod\n"
expect(mock_pry(binding, "show-source _c#wrongmethod")).to eq(error_message)
end
it "should find instance_methods if the class overrides instance_method" do
_c = Class.new do
def method
98
end
def self.instance_method; 789; end
end
expect(pry_eval(binding, "show-source _c#method")).to match(/98/)
end
it "should find instance methods with self#moo" do
_c = Class.new { def moo; "ve over!"; end }
expect(pry_eval(binding, "cd _c", "show-source self#moo")).to match(/ve over/)
end
it "should not find instance methods with self.moo" do
_c = Class.new { def moo; "ve over!"; end }
expect { pry_eval(binding, 'cd _c', 'show-source self.moo') }.to raise_error(Pry::CommandError, /Couldn't locate/)
end
it "should find normal methods with self.moo" do
_c = Class.new { def self.moo; "ve over!"; end }
expect(pry_eval(binding, 'cd _c', 'show-source self.moo')).to match(/ve over/)
end
it "should not find normal methods with self#moo" do
_c = Class.new { def self.moo; "ve over!"; end }
expect { pry_eval(binding, 'cd _c', 'show-source self#moo') }.to raise_error(Pry::CommandError, /Couldn't locate/)
end
it "should find normal methods (i.e non-instance methods) by default" do
_c = Class.new { def self.moo; "ve over!"; end }
expect(pry_eval(binding, "cd _c", "show-source moo")).to match(/ve over/)
end
it "should find instance methods if no normal methods available" do
_c = Class.new { def moo; "ve over!"; end }
expect(pry_eval(binding, "cd _c", "show-source moo")).to match(/ve over/)
end
describe "with -e option" do
before do
class FooBar
def bar
:bar
end
end
end
after do
Object.remove_const(:FooBar)
end
it "evaluates the argument as ruby and shows the source code for the returned value" do
ReplTester.start target: binding do
input 'show-source -e FooBar.new'
output(/class FooBar/)
end
end
end
it "should raise a CommandError when super method doesn't exist" do
def @o.foo(*bars); end
expect { pry_eval(binding, "show-source --super @o.foo") }.to raise_error(Pry::CommandError, /No superclass found/)
end
it "should output the source of a method defined inside Pry" do
out = pry_eval("def dyn_method\n:test\nend", 'show-source dyn_method')
expect(out).to match(/def dyn_method/)
Object.remove_method :dyn_method
end
it 'should output source for an instance method defined inside pry' do
pry_tester.tap do |t|
t.eval "class Test::A\n def yo\n end\nend"
expect(t.eval('show-source Test::A#yo')).to match(/def yo/)
end
end
it 'should output source for a repl method defined using define_method' do
pry_tester.tap do |t|
t.eval "class Test::A\n define_method(:yup) {}\nend"
expect(t.eval('show-source Test::A#yup')).to match(/define_method\(:yup\)/)
end
end
it "should output the source of a command defined inside Pry" do
command_definition = %(
Pry.config.commands.command "hubba-hubba" do
puts "that's what she said!"
end
)
out = pry_eval(command_definition, 'show-source hubba-hubba')
expect(out).to match(/what she said/)
Pry.config.commands.delete "hubba-hubba"
end
context "when there's no source code but the comment exists" do
before do
class Foo
# Bingo.
def bar; end
end
allow_any_instance_of(Pry::Method).to receive(:source).and_return(nil)
end
after do
Object.remove_const(:Foo)
end
it "outputs zero line numbers" do
out = pry_eval('show-source Foo#bar')
expect(out).to match(/
Owner:\sFoo
.+
Number\sof\slines:\s0
.+
\*\*\sWarning:\sCannot\sfind\scode\sfor\s'bar'\s\(source_location\sis\snil\)
/mx)
end
end
describe "finding super methods with help of `--super` switch" do
before do
class Foo
def foo(*_bars)
:super_wibble
end
end
end
after do
Object.remove_const(:Foo)
end
it "finds super methods with explicit method argument" do
o = Foo.new
def o.foo(*_bars)
:wibble
end
expect(pry_eval(binding, "show-source --super o.foo")).to match(/:super_wibble/)
end
it "finds super methods without explicit method argument" do
o = Foo.new
def o.foo(*bars)
@foo = :wibble
pry_eval(binding, 'show-source --super')
end
expect(o.foo).to match(/:super_wibble/)
end
it "finds super methods with multiple --super " do
o = Foo.new
o.extend(
Module.new do
def foo
:nibble
end
end
)
def o.foo(*bars)
@foo = :wibble
pry_eval(binding, 'show-source --super --super')
end
expect(o.foo).to match(/:super_wibble/)
end
end
describe "on sourcable objects" do
it "should output source defined inside pry" do
pry_tester.tap do |t|
t.eval "hello = proc { puts 'hello world!' }"
expect(t.eval("show-source hello")).to match(/proc \{ puts/)
end
end
it "should output source for procs/lambdas stored in variables" do
_hello = proc { puts 'hello world!' }
expect(pry_eval(binding, 'show-source _hello')).to match(/proc \{ puts/)
end
it "should output source for procs/lambdas stored in constants" do
HELLO = proc { puts 'hello world!' }
expect(pry_eval(binding, "show-source HELLO")).to match(/proc \{ puts/)
Object.remove_const(:HELLO)
end
it "should output source for method objects" do
def @o.hi; puts 'hi world'; end
_meth = @o.method(:hi)
expect(pry_eval(binding, "show-source _meth")).to match(/puts 'hi world'/)
end
describe "on variables that shadow methods" do
before do
@t = pry_tester.eval unindent(<<-EOS)
class ::TestHost
def hello
hello = proc { ' smile ' }
_foo = hello
pry_tester(binding)
end
end
::TestHost.new.hello
EOS
end
after do
Object.remove_const(:TestHost)
end
it "source of variable should take precedence over method that is being shadowed" do
source = @t.eval('show-source hello')
expect(source).not_to match(/def hello/)
expect(source).to match(/proc \{ ' smile ' \}/)
end
it "source of method being shadowed should take precedence over variable
if given self.meth_name syntax" do
expect(@t.eval('show-source self.hello')).to match(/def hello/)
end
end
end
describe "on variable or constant" do
before do
class TestHost
def hello
"hi there"
end
end
end
after do
Object.remove_const(:TestHost)
end
it "should output source of its class if variable doesn't respond to source_location" do
_test_host = TestHost.new
expect(pry_eval(binding, 'show-source _test_host'))
.to match(/class TestHost\n.*def hello/)
end
it "should output source of its class if constant doesn't respond to source_location" do
TEST_HOST = TestHost.new
expect(pry_eval(binding, 'show-source TEST_HOST'))
.to match(/class TestHost\n.*def hello/)
Object.remove_const(:TEST_HOST)
end
end
describe "on modules" do
before do
class ShowSourceTestSuperClass
def alpha; end
end
class ShowSourceTestClass < ShowSourceTestSuperClass
def alpha; end
end
module ShowSourceTestSuperModule
def alpha; end
end
module ShowSourceTestModule
include ShowSourceTestSuperModule
def alpha; end
end
ShowSourceTestClassWeirdSyntax = Class.new do
def beta; end
end
ShowSourceTestModuleWeirdSyntax = Module.new do
def beta; end
end
end
after do
Object.remove_const :ShowSourceTestSuperClass
Object.remove_const :ShowSourceTestClass
Object.remove_const :ShowSourceTestClassWeirdSyntax
Object.remove_const :ShowSourceTestSuperModule
Object.remove_const :ShowSourceTestModule
Object.remove_const :ShowSourceTestModuleWeirdSyntax
end
describe "basic functionality, should find top-level module definitions" do
it 'should show source for a class' do
expect(pry_eval('show-source ShowSourceTestClass'))
.to match(/class ShowSourceTestClass.*?def alpha/m)
end
it 'should show source for a super class' do
expect(pry_eval('show-source -s ShowSourceTestClass'))
.to match(/class ShowSourceTestSuperClass.*?def alpha/m)
end
it 'should show source for a module' do
expect(pry_eval('show-source ShowSourceTestModule'))
.to match(/module ShowSourceTestModule/)
end
it 'should show source for an ancestor module' do
expect(pry_eval('show-source -s ShowSourceTestModule'))
.to match(/module ShowSourceTestSuperModule/)
end
it 'should show source for a class when Const = Class.new syntax is used' do
expect(pry_eval('show-source ShowSourceTestClassWeirdSyntax'))
.to match(/ShowSourceTestClassWeirdSyntax = Class.new/)
end
it 'should show source for a super class when Const = Class.new syntax is used' do
expect(pry_eval('show-source -s ShowSourceTestClassWeirdSyntax'))
.to match(/class Object/)
end
it 'should show source for a module when Const = Module.new syntax is used' do
expect(pry_eval('show-source ShowSourceTestModuleWeirdSyntax'))
.to match(/ShowSourceTestModuleWeirdSyntax = Module.new/)
end
end
before do
pry_eval unindent(<<-EOS)
class Dog
def woof
end
end
class TobinaMyDog < Dog
def woof
end
end
EOS
end
after do
Object.remove_const :Dog
Object.remove_const :TobinaMyDog
end
describe "in REPL" do
it 'should find class defined in repl' do
expect(pry_eval('show-source TobinaMyDog')).to match(/class TobinaMyDog/)
end
it 'should find superclass defined in repl' do
expect(pry_eval('show-source -s TobinaMyDog')).to match(/class Dog/)
end
end
it 'should lookup module name with respect to current context' do
temporary_constants(:AlphaClass, :BetaClass) do
class BetaClass
def alpha; end
end
class AlphaClass
class BetaClass
def beta; end
end
end
expect(pry_eval(AlphaClass, 'show-source BetaClass')).to match(/def beta/)
end
end
it 'should lookup nested modules' do
temporary_constants(:AlphaClass) do
class AlphaClass
class BetaClass
def beta; end
end
end
expect(pry_eval('show-source AlphaClass::BetaClass')).to match(/class Beta/)
end
end
# note that pry assumes a class is only monkey-patched at most
# ONCE per file, so will not find multiple monkeypatches in the
# SAME file.
describe "show-source -a" do
it 'should show the source for all monkeypatches defined in different files' do
class TestClassForShowSource
def beta; end
end
result = pry_eval('show-source TestClassForShowSource -a')
expect(result).to match(/def alpha/)
expect(result).to match(/def beta/)
end
it 'should show the source for a class_eval-based monkeypatch' do
TestClassForShowSourceClassEval.class_eval do
def class_eval_method; end
end
result = pry_eval('show-source TestClassForShowSourceClassEval -a')
expect(result).to match(/def class_eval_method/)
end
it 'should ignore -a when object is not a module' do
TestClassForShowSourceClassEval.class_eval do
def class_eval_method
:bing
end
end
result = pry_eval('show-source TestClassForShowSourceClassEval#class_eval_method -a')
expect(result).to match(/bing/)
end
it 'should show the source for an instance_eval-based monkeypatch' do
TestClassForShowSourceInstanceEval.instance_eval do
def instance_eval_method; end
end
result = pry_eval('show-source TestClassForShowSourceInstanceEval -a')
expect(result).to match(/def instance_eval_method/)
end
describe "messages relating to -a" do
it 'indicates all available monkeypatches can be shown with -a when (when -a not used and more than one candidate exists for class)' do
class TestClassForShowSource
def gamma; end
end
result = pry_eval('show-source TestClassForShowSource')
expect(result).to match(/available monkeypatches/)
end
it 'shouldnt say anything about monkeypatches when only one candidate exists for selected class' do
class Aarrrrrghh
def o; end
end
result = pry_eval('show-source Aarrrrrghh')
expect(result).not_to match(/available monkeypatches/)
Object.remove_const(:Aarrrrrghh)
end
end
end
describe "when show-source is invoked without a method or class argument" do
before do
module TestHost
class M
def alpha; end
def beta; end
end
module C
end
module D
def self.invoked_in_method
pry_eval(binding, 'show-source')
end
end
end
end
after do
Object.remove_const(:TestHost)
end
describe "inside a module" do
it 'should display module source by default' do
out = pry_eval(TestHost::M, 'show-source')
expect(out).to match(/class M/)
expect(out).to match(/def alpha/)
expect(out).to match(/def beta/)
end
it 'should be unable to find module source if no methods defined' do
expect { pry_eval(TestHost::C, 'show-source') }.to raise_error(Pry::CommandError, /Couldn't locate/)
end
it 'should display method code (rather than class) if Pry started inside method binding' do
out = TestHost::D.invoked_in_method
expect(out).to match(/invoked_in_method/)
expect(out).not_to match(/module D/)
end
it 'should display class source when inside instance' do
out = pry_eval(TestHost::M.new, 'show-source')
expect(out).to match(/class M/)
expect(out).to match(/def alpha/)
expect(out).to match(/def beta/)
end
it 'should allow options to be passed' do
out = pry_eval(TestHost::M, 'show-source -b')
expect(out).to match(/\d:\s*class M/)
expect(out).to match(/\d:\s*def alpha/)
expect(out).to match(/\d:\s*def beta/)
end
describe "should skip over broken modules" do
before do
module BabyDuck
module Muesli
binding.eval("def a; end", "dummy.rb", 1)
binding.eval("def b; end", "dummy.rb", 2)
binding.eval("def c; end", "dummy.rb", 3)
end
module Muesli
def d; end
def e; end
end
end
end
after do
Object.remove_const(:BabyDuck)
end
it 'should return source for first valid module' do
out = pry_eval('show-source BabyDuck::Muesli')
expect(out).to match(/def d; end/)
expect(out).not_to match(/def a; end/)
end
end
describe "monkey-patched C modules" do
# Monkey-patch Array and add 15 methods, so its internal rank is
# high enough to make this definition primary.
class Array
15.times do |i|
define_method(:"doge#{i}") do
:"doge#{i}"
end
end
end
describe "when current context is a C object" do
it "should display a warning, and not monkey-patched definition" do
out = pry_eval([1, 2, 3], 'show-source')
expect(out).not_to match(/doge/)
expect(out).to match(/warning/i)
end
it "recommends to use the --all switch when other candidates are found" do
out = pry_eval([], 'show-source')
expect(out).to match(/'--all' switch/i)
end
end
describe "when current context is something other than a C object" do
it "should display a candidate, not a warning" do
out = pry_eval('show-source Array')
expect(out).to match(/doge/)
expect(out).not_to match(/warning/i)
end
end
end
end
end
end
describe "on commands" do
before do
@oldset = Pry.config.commands
@set = Pry.config.commands = Pry::CommandSet.new do
import Pry::Commands
end
end
after do
Pry.config.commands = @oldset
end
describe "block commands" do
it 'should show source for an ordinary command' do
@set.command('foo', :body_of_foo) {}
expect(pry_eval('show-source foo')).to match(/:body_of_foo/)
end
it "should output source of commands using special characters" do
@set.command('!%$', 'I gots the yellow fever') {}
expect(pry_eval('show-source !%$')).to match(/yellow fever/)
end
it 'should show source for a command with spaces in its name' do
@set.command('foo bar', :body_of_foo_bar) {}
expect(pry_eval('show-source foo bar')).to match(/:body_of_foo_bar/)
end
it 'should show source for a command by listing name' do
@set.command(/foo(.*)/, :body_of_foo_bar_regex, listing: "bar") { ; }
expect(pry_eval('show-source bar')).to match(/:body_of_foo_bar_regex/)
end
end
describe "create_command commands" do
it 'should show source for a command' do
@set.create_command "foo", "babble" do
def process() :body_of_foo end
end
expect(pry_eval('show-source foo')).to match(/:body_of_foo/)
end
it 'should show source for a command defined inside pry' do
pry_eval %{
_pry_.commands.create_command "foo", "babble" do
def process() :body_of_foo end
end
}
expect(pry_eval('show-source foo')).to match(/:body_of_foo/)
end
end
describe "real class-based commands" do
before do
# rubocop:disable Style/ClassAndModuleChildren
class ::TemporaryCommand < Pry::ClassCommand
match 'temp-command'
def process() :body_of_temp end
end
# rubocop:enable Style/ClassAndModuleChildren
Pry.config.commands.add_command(::TemporaryCommand)
end
after do
Object.remove_const(:TemporaryCommand)
end
it 'should show source for a command' do
expect(pry_eval('show-source temp-command')).to match(/:body_of_temp/)
end
it 'should show source for a command defined inside pry' do
pry_eval %{
class ::TemporaryCommandInPry < Pry::ClassCommand
match 'temp-command-in-pry'
def process() :body_of_temp end
end
}
Pry.config.commands.add_command(::TemporaryCommandInPry)
expect(pry_eval('show-source temp-command-in-pry')).to match(/:body_of_temp/)
Object.remove_const(:TemporaryCommandInPry)
end
end
end
describe "should set _file_ and _dir_" do
it 'should set _file_ and _dir_ to file containing method source' do
t = pry_tester
t.process_command "show-source TestClassForShowSource#alpha"
expect(t.pry.last_file).to match(/show_source_doc_examples/)
expect(t.pry.last_dir).to match(/fixtures/)
end
end
describe "can't find class/module code" do
describe "for classes" do
before do
module Jesus
module Pig
def lillybing; :lillybing; end
end
class Brian; end
class Jingle
def a; :doink; end
end
class Jangle < Jingle; include Pig; end
class Bangle < Jangle; end
end
end
after do
Object.remove_const(:Jesus)
end
it 'shows superclass code' do
t = pry_tester
t.process_command "show-source Jesus::Jangle"
expect(t.last_output).to match(/doink/)
end
it 'ignores included modules' do
t = pry_tester
t.process_command "show-source Jesus::Jangle"
expect(t.last_output).not_to match(/lillybing/)
end
it 'errors when class has no superclass to show' do
t = pry_tester
expect { t.process_command "show-source Jesus::Brian" }.to raise_error(Pry::CommandError, /Couldn't locate/)
end
it 'shows warning when reverting to superclass code' do
t = pry_tester
t.process_command "show-source Jesus::Jangle"
expect(t.last_output).to match(/Warning.*?Cannot find.*?Jesus::Jangle.*Showing.*Jesus::Jingle instead/)
end
it 'shows nth level superclass code (when no intermediary superclasses have code either)' do
t = pry_tester
t.process_command "show-source Jesus::Bangle"
expect(t.last_output).to match(/doink/)
end
it 'shows correct warning when reverting to nth level superclass' do
t = pry_tester
t.process_command "show-source Jesus::Bangle"
expect(t.last_output).to match(/Warning.*?Cannot find.*?Jesus::Bangle.*Showing.*Jesus::Jingle instead/)
end
end
describe "for modules" do
before do
module Jesus
module Alpha
def alpha; :alpha; end
end
module Zeta; end
module Beta
include Alpha
end
module Gamma
include Beta
end
end
end
after do
Object.remove_const(:Jesus)
end
it 'shows included module code' do
t = pry_tester
t.process_command "show-source Jesus::Beta"
expect(t.last_output).to match(/alpha/)
end
it 'shows warning when reverting to included module code' do
t = pry_tester
t.process_command "show-source Jesus::Beta"
expect(t.last_output).to match(/Warning.*?Cannot find.*?Jesus::Beta.*Showing.*Jesus::Alpha instead/)
end
it 'errors when module has no included module to show' do
t = pry_tester
expect { t.process_command "show-source Jesus::Zeta" }.to raise_error(Pry::CommandError, /Couldn't locate/)
end
it 'shows nth level included module code (when no intermediary modules have code either)' do
t = pry_tester
t.process_command "show-source Jesus::Gamma"
expect(t.last_output).to match(/alpha/)
end
it 'shows correct warning when reverting to nth level included module' do
t = pry_tester
t.process_command "show-source Jesus::Gamma"
expect(t.last_output).to match(/Warning.*?Cannot find.*?Jesus::Gamma.*Showing.*Jesus::Alpha instead/)
end
end
end
context "when the --doc switch is provided" do
before do
# Foo has docs.
class Foo
def bar
:bar
end
end
end
after { Object.remove_const(:Foo) }
it "shows documentation for the code object along with source code" do
expect(pry_eval(binding, "show-source Foo -d")).to match(
/Foo has docs\.\n\s+class Foo/
)
end
end
end
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