module RSpecHelpers

def allow_deprecation
  allow(RSpec.configuration.reporter).to receive(:deprecation)
end

def allow_warning
  allow(::Kernel).to receive(:warn)
end

def expect_deprecation_with_call_site(file, line, snippet=//)
  expect(RSpec.configuration.reporter).to receive(:deprecation).
    with(include(:deprecated => match(snippet), :call_site => include([file, line].join(':'))))
end

def expect_deprecation_without_call_site(snippet=//)
  expect(RSpec.configuration.reporter).to receive(:deprecation).
    with(include(:deprecated => match(snippet), :call_site => eq(nil)))
end

def expect_no_deprecations
  expect(RSpec.configuration.reporter).not_to receive(:deprecation)
end

def expect_no_warnings
  expect(::Kernel).not_to receive(:warn)
end

def expect_warn_deprecation(snippet=//)
  expect(RSpec.configuration.reporter).to receive(:deprecation).
    with(include(:message => match(snippet)))
end

def expect_warn_deprecation_with_call_site(file, line, snippet=//)
  expect(RSpec.configuration.reporter).to receive(:deprecation).
    with(include(:message => match(snippet), :call_site => include([file, line].join(':'))))
end

def expect_warning_with_call_site(file, line, expected=//)
  expect(::Kernel).to receive(:warn).
    with(match(expected).and(match(/Called from #{file}:#{line}/)))
end

def expect_warning_without_call_site(expected=//)
  expect(::Kernel).to receive(:warn).
    with(match(expected).and(satisfy { |message| !(/Called from/ =~ message) }))
end