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pry--pry/spec/color_printer_spec.rb
Kyrylo Silin e61354693f Add .rspec and require 'helper' from there
Just discovered this nice feature of RSpec where it can load all files for
us. Works with `bundle exec rake` and `bundle exec rspec spec/file_spec.rb`,
which covers all use cases.
2018-11-18 14:04:44 +08:00

99 lines
2.3 KiB
Ruby

describe Pry::ColorPrinter do
include Pry::Helpers::Text
let(:io) { StringIO.new }
let(:str) { strip_color(io.string.chomp) }
describe '.pp' do
describe 'Object' do
it 'prints a string' do
Pry::ColorPrinter.pp(Object.new, io)
expect(str).to match(/\A#<Object:0x\w+>\z/)
end
end
describe 'Object subclass' do
before do
class ObjectF < Object
def inspect
'foo'
end
end
class ObjectG < Object
def inspect
raise
end
end
end
after do
Object.send :remove_const, :ObjectF
Object.send :remove_const, :ObjectG
end
it 'prints a string' do
Pry::ColorPrinter.pp(ObjectF.new, io)
expect(str).to eq('foo')
end
it 'prints a string, even when an exception is raised' do
Pry::ColorPrinter.pp(ObjectG.new, io)
expect(str).to match(/\A#<ObjectG:0x\w+>\z/)
end
end
describe 'BasicObject' do
it 'prints a string' do
Pry::ColorPrinter.pp(BasicObject.new, io)
expect(str).to match(/\A#<BasicObject:0x\w+>\z/)
end
end
describe 'BasicObject subclass' do
before do
class BasicF < BasicObject
def inspect
'foo'
end
end
class BasicG < BasicObject
def inspect
raise
end
end
end
after do
Object.__send__ :remove_const, :BasicF
Object.__send__ :remove_const, :BasicG
end
it 'prints a string' do
Pry::ColorPrinter.pp(BasicF.new, io)
expect(str).to eq("foo")
end
it 'prints a string, even when an exception is raised' do
Pry::ColorPrinter.pp(BasicG.new, io)
expect(str).to match(/\A#<BasicG:0x\w+>\z/)
end
end
describe 'String' do
context 'with a single-line string' do
it 'pretty prints the string' do
Pry::ColorPrinter.pp('hello world', io)
expect(str).to eq('"hello world"')
end
end
context 'with a multi-line string' do
it 'pretty prints the string' do
Pry::ColorPrinter.pp("hello\nworld", io)
expect(str).to eq('"hello\nworld"')
end
end
end
end
end