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|
# encoding: utf-8
# frozen_string_literal: true
require "optparse"
require "rbconfig"
require "leakchecker"
##
# Minimal (mostly drop-in) replacement for test-unit.
#
# :include: README.txt
module MiniTest
def self.const_missing name # :nodoc:
case name
when :MINI_DIR then
msg = "MiniTest::MINI_DIR was removed. Don't violate other's internals."
warn "WAR\NING: #{msg}"
warn "WAR\NING: Used by #{caller.first}."
const_set :MINI_DIR, "bad value"
else
super
end
end
##
# Assertion base class
class Assertion < Exception; end
##
# Assertion raised when skipping a test
class Skip < Assertion; end
class << self
##
# Filter object for backtraces.
attr_accessor :backtrace_filter
end
class BacktraceFilter # :nodoc:
def filter bt
return ["No backtrace"] unless bt
new_bt = []
unless $DEBUG then
bt.each do |line|
break if line =~ /lib\/minitest/
new_bt << line
end
new_bt = bt.reject { |line| line =~ /lib\/minitest/ } if new_bt.empty?
new_bt = bt.dup if new_bt.empty?
else
new_bt = bt.dup
end
new_bt
end
end
self.backtrace_filter = BacktraceFilter.new
def self.filter_backtrace bt # :nodoc:
backtrace_filter.filter bt
end
class Unit # :nodoc:
VERSION = "4.7.5" # :nodoc:
attr_accessor :report, :failures, :errors, :skips # :nodoc:
attr_accessor :assertion_count # :nodoc:
attr_writer :test_count # :nodoc:
attr_accessor :start_time # :nodoc:
attr_accessor :help # :nodoc:
attr_accessor :verbose # :nodoc:
attr_writer :options # :nodoc:
##
# :attr:
#
# if true, installs an "INFO" signal handler (only available to BSD and
# OS X users) which prints diagnostic information about the test run.
#
# This is auto-detected by default but may be overridden by custom
# runners.
attr_accessor :info_signal
##
# Lazy accessor for options.
def options
@options ||= {seed: 42}
end
@@installed_at_exit ||= false
@@out = $stdout
@@after_tests = []
@@current_repeat_count = 0
##
# A simple hook allowing you to run a block of code after _all_ of
# the tests are done. Eg:
#
# MiniTest::Unit.after_tests { p $debugging_info }
def self.after_tests &block
@@after_tests << block
end
##
# Registers MiniTest::Unit to run tests at process exit
def self.autorun
at_exit {
# don't run if there was a non-exit exception
next if $! and not $!.kind_of? SystemExit
# the order here is important. The at_exit handler must be
# installed before anyone else gets a chance to install their
# own, that way we can be assured that our exit will be last
# to run (at_exit stacks).
exit_code = nil
at_exit {
@@after_tests.reverse_each(&:call)
exit false if exit_code && exit_code != 0
}
exit_code = MiniTest::Unit.new.run ARGV
} unless @@installed_at_exit
@@installed_at_exit = true
end
##
# Returns the stream to use for output.
def self.output
@@out
end
##
# Sets MiniTest::Unit to write output to +stream+. $stdout is the default
# output
def self.output= stream
@@out = stream
end
##
# Tells MiniTest::Unit to delegate to +runner+, an instance of a
# MiniTest::Unit subclass, when MiniTest::Unit#run is called.
def self.runner= runner
@@runner = runner
end
##
# Returns the MiniTest::Unit subclass instance that will be used
# to run the tests. A MiniTest::Unit instance is the default
# runner.
def self.runner
@@runner ||= self.new
end
##
# Return all plugins' run methods (methods that start with "run_").
def self.plugins
@@plugins ||= (["run_tests"] +
public_instance_methods(false).
grep(/^run_/).map { |s| s.to_s }).uniq
end
##
# Return the IO for output.
def output
self.class.output
end
def puts *a # :nodoc:
output.puts(*a)
end
def print *a # :nodoc:
output.print(*a)
end
def test_count # :nodoc:
@test_count ||= 0
end
##
# Runner for a given +type+ (eg, test vs bench).
def self.current_repeat_count
@@current_repeat_count
end
def _run_anything type
suites = TestCase.send "#{type}_suites"
return if suites.empty?
puts
puts "# Running #{type}s:"
puts
@test_count, @assertion_count = 0, 0
test_count = assertion_count = 0
sync = output.respond_to? :"sync=" # stupid emacs
old_sync, output.sync = output.sync, true if sync
@@current_repeat_count = 0
begin
start = Time.now
results = _run_suites suites, type
@test_count = results.inject(0) { |sum, (tc, _)| sum + tc }
@assertion_count = results.inject(0) { |sum, (_, ac)| sum + ac }
test_count += @test_count
assertion_count += @assertion_count
t = Time.now - start
@@current_repeat_count += 1
unless @repeat_count
puts
puts
end
puts "Finished%s %ss in %.6fs, %.4f tests/s, %.4f assertions/s.\n" %
[(@repeat_count ? "(#{@@current_repeat_count}/#{@repeat_count}) " : ""), type,
t, @test_count.fdiv(t), @assertion_count.fdiv(t)]
end while @repeat_count && @@current_repeat_count < @repeat_count &&
report.empty? && failures.zero? && errors.zero?
output.sync = old_sync if sync
report.each_with_index do |msg, i|
puts "\n%3d) %s" % [i + 1, msg]
end
puts
@test_count = test_count
@assertion_count = assertion_count
status
end
##
# Runs all the +suites+ for a given +type+.
#
def _run_suites suites, type
suites.map { |suite| _run_suite suite, type }
end
##
# Run a single +suite+ for a given +type+.
def _run_suite suite, type
header = "#{type}_suite_header"
puts send(header, suite) if respond_to? header
filter = options[:filter] || '/./'
filter = Regexp.new $1 if filter =~ /\/(.*)\//
all_test_methods = suite.send "#{type}_methods"
filtered_test_methods = all_test_methods.find_all { |m|
filter === m || filter === "#{suite}##{m}"
}
leakchecker = LeakChecker.new
if ENV["LEAK_CHECKER_TRACE_OBJECT_ALLOCATION"]
require "objspace"
trace = true
end
assertions = filtered_test_methods.map { |method|
inst = suite.new method
inst._assertions = 0
print "#{suite}##{method} = " if @verbose
start_time = Time.now if @verbose
result =
if trace
ObjectSpace.trace_object_allocations {inst.run self}
else
inst.run self
end
print "%.2f s = " % (Time.now - start_time) if @verbose
print result
puts if @verbose
$stdout.flush
unless defined?(RubyVM::JIT) && RubyVM::JIT.enabled? # compiler process is wrongly considered as leak
leakchecker.check("#{inst.class}\##{inst.__name__}")
end
inst._assertions
}
return assertions.size, assertions.inject(0) { |sum, n| sum + n }
end
##
# Record the result of a single test. Makes it very easy to gather
# information. Eg:
#
# class StatisticsRecorder < MiniTest::Unit
# def record suite, method, assertions, time, error
# # ... record the results somewhere ...
# end
# end
#
# MiniTest::Unit.runner = StatisticsRecorder.new
#
# NOTE: record might be sent more than once per test. It will be
# sent once with the results from the test itself. If there is a
# failure or error in teardown, it will be sent again with the
# error or failure.
def record suite, method, assertions, time, error
end
def location e # :nodoc:
last_before_assertion = ""
return '<empty>' unless e.backtrace # SystemStackError can return nil.
e.backtrace.reverse_each do |s|
break if s =~ /in .(assert|refute|flunk|pass|fail|raise|must|wont)/
last_before_assertion = s
end
last_before_assertion.sub(/:in .*$/, '')
end
##
# Writes status for failed test +meth+ in +klass+ which finished with
# exception +e+
def puke klass, meth, e
e = case e
when MiniTest::Skip then
@skips += 1
return "S" unless @verbose
"Skipped:\n#{klass}##{meth} [#{location e}]:\n#{e.message}\n"
when MiniTest::Assertion then
@failures += 1
"Failure:\n#{klass}##{meth} [#{location e}]:\n#{e.message}\n"
else
@errors += 1
bt = MiniTest::filter_backtrace(e.backtrace).join "\n "
"Error:\n#{klass}##{meth}:\n#{e.class}: #{e.message.b}\n #{bt}\n"
end
@report << e
e[0, 1]
end
def initialize # :nodoc:
@report = []
@errors = @failures = @skips = 0
@verbose = false
@mutex = Thread::Mutex.new
@info_signal = Signal.list['INFO']
@repeat_count = nil
end
def synchronize # :nodoc:
if @mutex then
@mutex.synchronize { yield }
else
yield
end
end
def process_args args = [] # :nodoc:
options = {}
orig_args = args.dup
OptionParser.new do |opts|
opts.banner = 'minitest options:'
opts.version = MiniTest::Unit::VERSION
opts.on '-h', '--help', 'Display this help.' do
puts opts
exit
end
opts.on '-s', '--seed SEED', Integer, "Sets random seed" do |m|
options[:seed] = m.to_i
end
opts.on '-v', '--verbose', "Verbose. Show progress processing files." do
options[:verbose] = true
end
opts.on '-n', '--name PATTERN', "Filter test names on pattern (e.g. /foo/)" do |a|
options[:filter] = a
end
opts.parse! args
orig_args -= args
end
unless options[:seed] then
srand
options[:seed] = srand % 0xFFFF
orig_args << "--seed" << options[:seed].to_s
end
srand options[:seed]
self.verbose = options[:verbose]
@help = orig_args.map { |s| s =~ /[\s|&<>$()]/ ? s.inspect : s }.join " "
options
end
##
# Begins the full test run. Delegates to +runner+'s #_run method.
def run args = []
self.class.runner._run(args)
end
##
# Top level driver, controls all output and filtering.
def _run args = []
args = process_args args # ARGH!! blame test/unit process_args
self.options.merge! args
puts "Run options: #{help}"
self.class.plugins.each do |plugin|
send plugin
break unless report.empty?
end
return failures + errors if self.test_count > 0 # or return nil...
rescue Interrupt
abort 'Interrupted'
end
##
# Runs test suites matching +filter+.
def run_tests
_run_anything :test
end
##
# Writes status to +io+
def status io = self.output
format = "%d tests, %d assertions, %d failures, %d errors, %d skips"
io.puts format % [test_count, assertion_count, failures, errors, skips]
end
##
# Provides a simple set of guards that you can use in your tests
# to skip execution if it is not applicable. These methods are
# mixed into TestCase as both instance and class methods so you
# can use them inside or outside of the test methods.
#
# def test_something_for_mri
# skip "bug 1234" if jruby?
# # ...
# end
#
# if windows? then
# # ... lots of test methods ...
# end
module Guard
##
# Is this running on jruby?
def jruby? platform = RUBY_PLATFORM
"java" == platform
end
##
# Is this running on mri?
def maglev? platform = defined?(RUBY_ENGINE) && RUBY_ENGINE
"maglev" == platform
end
module_function :maglev?
##
# Is this running on mri?
def mri? platform = RUBY_DESCRIPTION
/^ruby/ =~ platform
end
##
# Is this running on rubinius?
def rubinius? platform = defined?(RUBY_ENGINE) && RUBY_ENGINE
"rbx" == platform
end
##
# Is this running on windows?
def windows? platform = RUBY_PLATFORM
/mswin|mingw/ =~ platform
end
##
# Is this running on mingw?
def mingw? platform = RUBY_PLATFORM
/mingw/ =~ platform
end
end
##
# Provides before/after hooks for setup and teardown. These are
# meant for library writers, NOT for regular test authors. See
# #before_setup for an example.
module LifecycleHooks
##
# Runs before every test, after setup. This hook is meant for
# libraries to extend minitest. It is not meant to be used by
# test developers.
#
# See #before_setup for an example.
def after_setup; end
##
# Runs before every test, before setup. This hook is meant for
# libraries to extend minitest. It is not meant to be used by
# test developers.
#
# As a simplistic example:
#
# module MyMinitestPlugin
# def before_setup
# super
# # ... stuff to do before setup is run
# end
#
# def after_setup
# # ... stuff to do after setup is run
# super
# end
#
# def before_teardown
# super
# # ... stuff to do before teardown is run
# end
#
# def after_teardown
# # ... stuff to do after teardown is run
# super
# end
# end
#
# class MiniTest::Unit::TestCase
# include MyMinitestPlugin
# end
def before_setup; end
##
# Runs after every test, before teardown. This hook is meant for
# libraries to extend minitest. It is not meant to be used by
# test developers.
#
# See #before_setup for an example.
def before_teardown; end
##
# Runs after every test, after teardown. This hook is meant for
# libraries to extend minitest. It is not meant to be used by
# test developers.
#
# See #before_setup for an example.
def after_teardown; end
end
##
# Subclass TestCase to create your own tests. Typically you'll want a
# TestCase subclass per implementation class.
#
# See MiniTest::Assertions
class TestCase
include LifecycleHooks
include Guard
extend Guard
attr_reader :__name__ # :nodoc:
PASSTHROUGH_EXCEPTIONS = [NoMemoryError, SignalException,
Interrupt, SystemExit] # :nodoc:
##
# Runs the tests reporting the status to +runner+
def run runner
trap "INFO" do
runner.report.each_with_index do |msg, i|
warn "\n%3d) %s" % [i + 1, msg]
end
warn ''
time = runner.start_time ? Time.now - runner.start_time : 0
warn "Current Test: %s#%s %.2fs" % [self.class, self.__name__, time]
runner.status $stderr
end if runner.info_signal
start_time = Time.now
result = ""
srand(runner.options[:seed])
begin
@passed = nil
self.before_setup
self.setup
self.after_setup
self.run_test self.__name__
result = "." unless io?
time = Time.now - start_time
runner.record self.class, self.__name__, self._assertions, time, nil
@passed = true
rescue *PASSTHROUGH_EXCEPTIONS
raise
rescue Exception => e
@passed = Skip === e
time = Time.now - start_time
runner.record self.class, self.__name__, self._assertions, time, e
result = runner.puke self.class, self.__name__, e
ensure
%w{ before_teardown teardown after_teardown }.each do |hook|
begin
self.send hook
rescue *PASSTHROUGH_EXCEPTIONS
raise
rescue Exception => e
@passed = false
runner.record self.class, self.__name__, self._assertions, time, e
result = runner.puke self.class, self.__name__, e
end
end
trap 'INFO', 'DEFAULT' if runner.info_signal
end
result
end
alias :run_test :__send__
def initialize name # :nodoc:
@__name__ = name
@__io__ = nil
@passed = nil
@@current = self # FIX: make thread local
end
def self.current # :nodoc:
@@current # FIX: make thread local
end
##
# Return the output IO object
def io
@__io__ = true
MiniTest::Unit.output
end
##
# Have we hooked up the IO yet?
def io?
@__io__
end
def self.reset # :nodoc:
@@test_suites = {}
end
reset
##
# Make diffs for this TestCase use #pretty_inspect so that diff
# in assert_equal can be more details. NOTE: this is much slower
# than the regular inspect but much more usable for complex
# objects.
def self.make_my_diffs_pretty!
require 'pp'
define_method :mu_pp do |o|
o.pretty_inspect
end
end
def self.inherited klass # :nodoc:
@@test_suites[klass] = true
super
end
def self.test_order # :nodoc:
:sorted
end
def self.test_suites # :nodoc:
suites = @@test_suites.keys
case self.test_order
when :random
# shuffle test suites based on CRC32 of their names
salt = "\n" + rand(1 << 32).to_s
crc_tbl = (0..255).map do |i|
(0..7).inject(i) {|c,| (c & 1 == 1) ? (0xEDB88320 ^ (c >> 1)) : (c >> 1) }
end
suites = suites.sort_by do |suite|
crc32 = 0xffffffff
"#{suite.name}#{salt}".each_byte do |data|
crc32 = crc_tbl[(crc32 ^ data) & 0xff] ^ (crc32 >> 8)
end
crc32 ^ 0xffffffff
end
when :nosort
suites
else
suites.sort_by { |ts| ts.name.to_s }
end
end
def self.test_methods # :nodoc:
methods = public_instance_methods(true).grep(/^test/).map { |m| m.to_s }
case self.test_order
when :parallel
max = methods.size
ParallelEach.new methods.sort.sort_by { rand max }
when :random then
max = methods.size
methods.sort.sort_by { rand max }
when :alpha, :sorted then
methods.sort
when :nosort
methods
else
raise "Unknown test_order: #{self.test_order.inspect}"
end
end
##
# Returns true if the test passed.
def passed?
@passed
end
##
# Runs before every test. Use this to set up before each test
# run.
def setup; end
##
# Runs after every test. Use this to clean up after each test
# run.
def teardown; end
end # class TestCase
end # class Unit
Test = Unit::TestCase
end # module MiniTest
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