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# frozen_string_literal: false
require "irb"
require "rdoc"
require_relative "helper"
module TestIRB
class InputMethodTest < TestCase
def setup
@conf_backup = IRB.conf.dup
IRB.conf[:LC_MESSAGES] = IRB::Locale.new
save_encodings
end
def teardown
IRB.conf.replace(@conf_backup)
restore_encodings
# Reset Reline configuration overridden by RelineInputMethod.
Reline.instance_variable_set(:@core, nil)
end
end
class RelineInputMethodTest < InputMethodTest
def test_initialization
Reline.completion_proc = nil
Reline.dig_perfect_match_proc = nil
IRB::RelineInputMethod.new(IRB::RegexpCompletor.new)
assert_nil Reline.completion_append_character
assert_equal '', Reline.completer_quote_characters
assert_equal IRB::InputMethod::BASIC_WORD_BREAK_CHARACTERS, Reline.basic_word_break_characters
assert_not_nil Reline.completion_proc
assert_not_nil Reline.dig_perfect_match_proc
end
def test_initialization_without_use_autocomplete
original_show_doc_proc = Reline.dialog_proc(:show_doc)&.dialog_proc
empty_proc = Proc.new {}
Reline.add_dialog_proc(:show_doc, empty_proc)
IRB.conf[:USE_AUTOCOMPLETE] = false
IRB::RelineInputMethod.new(IRB::RegexpCompletor.new)
refute Reline.autocompletion
assert_equal empty_proc, Reline.dialog_proc(:show_doc).dialog_proc
ensure
Reline.add_dialog_proc(:show_doc, original_show_doc_proc, Reline::DEFAULT_DIALOG_CONTEXT)
end
def test_initialization_with_use_autocomplete
original_show_doc_proc = Reline.dialog_proc(:show_doc)&.dialog_proc
empty_proc = Proc.new {}
Reline.add_dialog_proc(:show_doc, empty_proc)
IRB.conf[:USE_AUTOCOMPLETE] = true
IRB::RelineInputMethod.new(IRB::RegexpCompletor.new)
assert Reline.autocompletion
assert_not_equal empty_proc, Reline.dialog_proc(:show_doc).dialog_proc
ensure
Reline.add_dialog_proc(:show_doc, original_show_doc_proc, Reline::DEFAULT_DIALOG_CONTEXT)
end
def test_initialization_with_use_autocomplete_but_without_rdoc
original_show_doc_proc = Reline.dialog_proc(:show_doc)&.dialog_proc
empty_proc = Proc.new {}
Reline.add_dialog_proc(:show_doc, empty_proc)
IRB.conf[:USE_AUTOCOMPLETE] = true
without_rdoc do
IRB::RelineInputMethod.new(IRB::RegexpCompletor.new)
end
assert Reline.autocompletion
# doesn't register show_doc dialog
assert_equal empty_proc, Reline.dialog_proc(:show_doc).dialog_proc
ensure
Reline.add_dialog_proc(:show_doc, original_show_doc_proc, Reline::DEFAULT_DIALOG_CONTEXT)
end
end
class DisplayDocumentTest < InputMethodTest
def setup
super
@driver = RDoc::RI::Driver.new(use_stdout: true)
end
def display_document(target, bind, driver = nil)
input_method = IRB::RelineInputMethod.new(IRB::RegexpCompletor.new)
input_method.instance_variable_set(:@rdoc_ri_driver, driver) if driver
input_method.instance_variable_set(:@completion_params, ['', target, '', bind])
input_method.display_document(target)
end
def test_perfectly_matched_namespace_triggers_document_display
omit unless has_rdoc_content?
out, err = capture_output do
display_document("String", binding, @driver)
end
assert_empty(err)
assert_include(out, " S\bSt\btr\bri\bin\bng\bg")
end
def test_perfectly_matched_multiple_namespaces_triggers_document_display
result = nil
out, err = capture_output do
result = display_document("{}.nil?", binding, @driver)
end
assert_empty(err)
# check if there're rdoc contents (e.g. CI doesn't generate them)
if has_rdoc_content?
# if there's rdoc content, we can verify by checking stdout
# rdoc generates control characters for formatting method names
assert_include(out, "P\bPr\bro\boc\bc.\b.n\bni\bil\bl?\b?") # Proc.nil?
assert_include(out, "H\bHa\bas\bsh\bh.\b.n\bni\bil\bl?\b?") # Hash.nil?
else
# this is a hacky way to verify the rdoc rendering code path because CI doesn't have rdoc content
# if there are multiple namespaces to be rendered, PerfectMatchedProc renders the result with a document
# which always returns the bytes rendered, even if it's 0
assert_equal(0, result)
end
end
def test_not_matched_namespace_triggers_nothing
result = nil
out, err = capture_output do
result = display_document("Stri", binding, @driver)
end
assert_empty(err)
assert_empty(out)
assert_nil(result)
end
def test_perfect_matching_stops_without_rdoc
result = nil
out, err = capture_output do
without_rdoc do
result = display_document("String", binding)
end
end
assert_empty(err)
assert_not_match(/from ruby core/, out)
assert_nil(result)
end
def test_perfect_matching_handles_nil_namespace
out, err = capture_output do
# symbol literal has `nil` doc namespace so it's a good test subject
assert_nil(display_document(":aiueo", binding, @driver))
end
assert_empty(err)
assert_empty(out)
end
private
def has_rdoc_content?
File.exist?(RDoc::RI::Paths::BASE)
end
end
end
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