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pry--pry/spec/commands/shell_command_spec.rb
Kyrylo Silin 09ebd358e1 pry_instance: factor out command state to be global
This change is aimed to simplify #1843 (Rework the Pry config).

Current command state implementation gets in the way. We would like to simplify
the Config class. The current implementation penetrates Pry codebase everywhere,
and during my rework of the config I discovered that `watch` uses global command
state.

It means the state should survive `Pry.new` calls. With my (unpublished yet)
implementation, the `watch` command fails to do so. I realised that we can
refactor command state implementation to be global. It makes sense to me and
also helps with the Config refactoring.

With help of a dedicated class we can easily manage the command
state (resetting).
2019-04-29 20:06:51 +03:00

93 lines
2.7 KiB
Ruby

describe Pry::Command::ShellCommand do
describe 'cd' do
before do
@o = Object.new
@t = pry_tester(@o) do
def command_state
Pry::CommandState.default.state_for(Pry::Command::ShellCommand.match)
end
end
end
after { Pry::CommandState.default.reset(Pry::Command::ShellCommand.match) }
describe ".cd" do
before do
allow(Dir).to receive(:chdir)
end
it "saves the current working directory" do
expect(Dir).to receive(:pwd).and_return("initial_path")
@t.eval ".cd new_path"
expect(@t.command_state.old_pwd).to eq("initial_path")
end
describe "given a path" do
it "sends the path to File.expand_path" do
expect(Dir).to receive(:chdir).with(File.expand_path("new_path"))
@t.eval ".cd new_path"
end
end
describe "given an empty string" do
it "sends ~ to File.expand_path" do
expect(Dir).to receive(:chdir).with(File.expand_path("~"))
@t.eval ".cd "
end
end
describe "given a dash" do
describe "given no prior directory" do
it "raises the correct error" do
expect { @t.eval ".cd -" }
.to raise_error(StandardError, "No prior directory available")
end
end
describe "given a prior directory" do
it "sends the user's last pry working directory to File.expand_path" do
expect(Dir).to receive(:pwd).twice.and_return("initial_path")
expect(Dir).to receive(:chdir).with(File.expand_path("new_path"))
@t.eval ".cd new_path"
expect(Dir).to receive(:chdir).with(File.expand_path("initial_path"))
@t.eval ".cd -"
end
end
end
describe "with CDPATH" do
let(:cdpath) { File.expand_path(File.join('spec', 'fixtures', 'cdpathdir')) }
let(:nonexisting_path) { File.expand_path('nonexisting_path') }
let(:long_cdpath) do
[nonexisting_path, cdpath].join(File::PATH_SEPARATOR)
end
describe "when it is defined" do
before do
@stub = allow_any_instance_of(described_class).to receive(:cd_path_env)
end
describe "simple cdpath" do
it "cd's into the dir" do
@stub.and_return(cdpath)
expect(Dir).to receive(:chdir).with(cdpath)
pry_eval '.cd cdpathdir'
end
end
describe "complex cdpath" do
it "cd's into the dir" do
@stub.and_return(long_cdpath)
expect(Dir).to receive(:chdir).with(cdpath)
pry_eval '.cd cdpathdir'
end
end
end
end
end
end
end