Added the `abort_execution` matcher

This commit is contained in:
Gabriel Mazetto 2019-07-10 19:26:52 +01:00
parent 6769aab08a
commit c1fe76f15b
1 changed files with 46 additions and 0 deletions

View File

@ -0,0 +1,46 @@
RSpec::Matchers.define :abort_execution do
match do |code_block|
@captured_stderr = StringIO.new
original_stderr = $stderr
$stderr = @captured_stderr
code_block.call
false
rescue SystemExit => e
captured = @captured_stderr.string.chomp
@actual_exit_code = e.status
break false unless e.status == 1
if @message
if @message.is_a? String
@message == captured
elsif @message.is_a? Regexp
@message.match?(captured)
else
raise ArgumentError, 'with_message must be either a String or a Regular Expression'
end
end
ensure
$stderr = original_stderr
end
chain :with_message do |message|
@message = message
end
failure_message do |block|
unless @actual_exit_code
break "expected #{block} to abort with '#{@message}' but didnt call abort."
end
if @actual_exit_code != 1
break "expected #{block} to abort with: '#{@message}' but exited with success instead."
end
"expected #{block} to abort with: '#{@message}' \n but received: '#{@captured_stderr.string.chomp}' instead."
end
supports_block_expectations
end