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require "spec_helper"
require "rspec/support/warnings"
require 'rspec/support/spec/shell_out'
RSpec.describe "rspec warnings and deprecations" do
include RSpec::Support::ShellOut
let(:warning_object) do
Object.new.tap { |o| o.extend(RSpec::Support::Warnings) }
end
it 'works when required in isolation' do
out, err, status = run_ruby_with_current_load_path("RSpec.deprecate('foo')", "-rrspec/support/warnings")
expect(out).to eq("")
expect(err).to start_with("DEPRECATION: foo is deprecated")
expect(status.exitstatus).to eq(0)
end
context "when rspec-core is not available" do
shared_examples "falling back to Kernel.warn" do |args|
let(:method_name) { args.fetch(:method_name) }
it 'falls back to warning with a plain message' do
expect(::Kernel).to receive(:warn).with(/message/)
warning_object.send(method_name, 'message')
end
it "handles being passed options" do
expect(::Kernel).to receive(:warn).with(/message/)
warning_object.send(method_name, "this is the message", :type => :test)
end
end
it_behaves_like 'falling back to Kernel.warn', :method_name => :deprecate
it_behaves_like 'falling back to Kernel.warn', :method_name => :warn_deprecation
end
shared_examples "warning helper" do |helper|
it 'warns with the message text' do
expect(::Kernel).to receive(:warn).with(/Message/)
warning_object.send(helper, 'Message')
end
it 'sets the calling line' do
expect(::Kernel).to receive(:warn).with(/#{__FILE__}:#{__LINE__+1}/)
warning_object.send(helper, 'Message')
end
it 'optionally sets the replacement' do
expect(::Kernel).to receive(:warn).with(/Use Replacement instead./)
warning_object.send(helper, 'Message', :replacement => 'Replacement')
end
end
describe "#warning" do
it 'prepends WARNING:' do
expect(::Kernel).to receive(:warn).with(/WARNING: Message\./)
warning_object.warning 'Message'
end
it_should_behave_like 'warning helper', :warning
end
describe "#warn_with message, options" do
it_should_behave_like 'warning helper', :warn_with
end
end
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