/
cli_spec.rb
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/
cli_spec.rb
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# frozen_string_literal: true
RSpec.describe Pry::CLI do
before { described_class.reset }
describe ".add_options" do
it "returns self" do
expect(described_class.add_options).to eq(described_class)
end
context "when options is nil and a block is provided" do
before { described_class.options = nil }
it "sets the block as options" do
block = proc {}
described_class.add_options(&block)
expect(described_class.options).to eql(block)
end
end
context "when options were previously set" do
it "overwrites the options proc that executes the provided block" do
described_class.options = proc {}
executed = false
described_class.add_options { executed = true }
described_class.options.call
expect(executed).to be_truthy
end
it "overwrites the options proc that executes original options" do
original_executed = false
described_class.options = proc { original_executed = true }
described_class.add_options {}
described_class.options.call
expect(original_executed).to be_truthy
end
end
end
describe ".add_option_processor" do
it "returns self" do
expect(described_class.add_option_processor {}).to eq(described_class)
end
it "adds an option processor" do
option_processor = proc {}
described_class.add_option_processor(&option_processor)
expect(described_class.option_processors).to eql([option_processor])
end
end
describe ".parse_options" do
context "when option exists" do
before { described_class.options = proc { on(:v, 'test') } }
it "removes the existing option from ARGV" do
argv = %w[filename -v]
described_class.parse_options(argv)
expect(argv).not_to include('-v')
end
it "initializes session setup" do
expect(Pry).to receive(:initial_session_setup)
described_class.parse_options(%w[-v])
end
it "finalizes session setup" do
expect(Pry).to receive(:final_session_setup)
described_class.parse_options(%w[-v])
end
end
context "when multiple options exist" do
it "processes only called options" do
processor_a_called = false
processor_b_called = false
processor_c_called = false
described_class.options = proc do
on('option-a', 'test a') { processor_a_called = true }
on('option-b', 'test b') { processor_b_called = true }
on('option-c', 'test c') { processor_c_called = true }
end
described_class.parse_options(%w[--option-a --option-b])
expect(processor_a_called).to be_truthy
expect(processor_b_called).to be_truthy
expect(processor_c_called).to be_falsey
end
end
context "when option doesn't exist" do
it "raises error" do
expect { described_class.parse_options(['--nothing']) }
.to raise_error(Pry::CLI::NoOptionsError)
end
end
context "when argv is passed with a dash (-)" do
before { described_class.options = proc {} }
it "sets everything after the dash as input args" do
argv = %w[filename - foo bar]
described_class.parse_options(argv)
expect(described_class.input_args).to eq(%w[foo bar])
end
end
context "when argv is passed with a double dash (--)" do
before { described_class.options = proc {} }
it "sets everything after the double dash as input args" do
argv = %w[filename -- foo bar]
described_class.parse_options(argv)
expect(described_class.input_args).to eq(%w[foo bar])
end
end
context "when invalid option is provided" do
before { described_class.options = proc { on(:valid, 'valid') } }
it "exits program" do
expect(Kernel).to receive(:exit)
expect(STDOUT).to receive(:puts)
described_class.parse_options(%w[--invalid])
end
end
end
describe ".start" do
before do
# Don't start Pry session in the middle of tests.
allow(Pry).to receive(:start)
described_class.options = proc {}
end
it "sets Pry.cli to true" do
opts = described_class.parse_options(%w[])
described_class.start(opts)
expect(Pry.cli).to be_truthy
end
context "when the help option is provided" do
before { described_class.options = proc { on(:help, 'help') } }
it "exits" do
expect(Kernel).to receive(:exit)
opts = described_class.parse_options(%w[--help])
described_class.start(opts)
end
end
context "when the context option is provided" do
before { described_class.options = proc { on(:context=, 'context') } }
it "initializes session setup" do
expect(Pry).to receive(:initial_session_setup).twice
opts = described_class.parse_options(%w[--context=Object])
described_class.start(opts)
end
it "finalizes session setup" do
expect(Pry).to receive(:final_session_setup).twice
opts = described_class.parse_options(%w[--context=Object])
described_class.start(opts)
end
it "starts Pry in the provided context" do
expect(Pry).to receive(:start).with(
instance_of(Binding), input: instance_of(StringIO)
) do |binding, _opts|
expect(binding.eval('self')).to be_an(Object)
end
opts = described_class.parse_options(%w[--context=Object])
described_class.start(opts)
end
end
context "when the context option is not provided" do
before { described_class.options = proc {} }
it "starts Pry in the top level" do
expect(Pry).to receive(:start).with(
instance_of(Binding), input: instance_of(StringIO)
) do |binding, _opts|
expect(binding.eval('self')).to eq(Pry.main)
end
opts = described_class.parse_options(%w[])
described_class.start(opts)
end
end
context "when there are some input args" do
before { described_class.options = proc {} }
it "loads files through repl and exits" do
expect(Pry).to receive(:load_file_through_repl).with(match(%r{pry/foo}))
expect(Kernel).to receive(:exit)
opts = described_class.parse_options(%w[foo])
described_class.start(opts)
end
end
context "when 'pry' is passed as an input arg" do
before { described_class.options = proc {} }
it "does not load files through repl" do
expect(Pry).not_to receive(:load_file_through_repl)
opts = described_class.parse_options(%w[pry])
described_class.start(opts)
end
end
end
end