Sha256: 48e29e1a323bd6f8f10529731e190c22e249488023d242a6bf03937b98925f45
Contents?: true
Size: 1.13 KB
Versions: 23
Compression:
Stored size: 1.13 KB
Contents
RSpec::Matchers.define :write do |message|
chain(:to) do |io|
@io = io
end
match do |block|
output =
case io
when :output then fake_stdout(&block)
when :error then fake_stderr(&block)
else raise("Allowed values for `to` are :output and :error, got `#{io.inspect}`")
end
output.include? message
end
description do
"write \"#{message}\" #{io_name}"
end
failure_message do
"expected to #{description}"
end
failure_message_when_negated do
"expected to not #{description}"
end
# Fake STDERR and return a string written to it.
def fake_stderr
original_stderr = $stderr
$stderr = StringIO.new
yield
$stderr.string
ensure
$stderr = original_stderr
end
# Fake STDOUT and return a string written to it.
def fake_stdout
original_stdout = $stdout
$stdout = StringIO.new
yield
$stdout.string
ensure
$stdout = original_stdout
end
# default IO is standard output
def io
@io ||= :output
end
# IO name is used for description message
def io_name
{ output: 'standard output', error: 'standard error' }[io]
end
end
Version data entries
23 entries across 23 versions & 2 rubygems