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|
# frozen_string_literal: true
module Test
module Unit
module Assertions
def _assertions= n # :nodoc:
@_assertions = n
end
def _assertions # :nodoc:
@_assertions ||= 0
end
##
# Returns a proc that will output +msg+ along with the default message.
def message msg = nil, ending = nil, &default
proc {
msg = msg.call.chomp(".") if Proc === msg
custom_message = "#{msg}.\n" unless msg.nil? or msg.to_s.empty?
"#{custom_message}#{default.call}#{ending || "."}"
}
end
end
module CoreAssertions
if defined?(MiniTest)
require_relative '../../envutil'
# for ruby core testing
include MiniTest::Assertions
# Compatibility hack for assert_raise
Test::Unit::AssertionFailedError = MiniTest::Assertion
else
module MiniTest
class Assertion < Exception; end
class Skip < Assertion; end
end
require 'pp'
require_relative 'envutil'
include Test::Unit::Assertions
end
def mu_pp(obj) #:nodoc:
obj.pretty_inspect.chomp
end
def assert_file
AssertFile
end
FailDesc = proc do |status, message = "", out = ""|
now = Time.now
proc do
EnvUtil.failure_description(status, now, message, out)
end
end
def assert_in_out_err(args, test_stdin = "", test_stdout = [], test_stderr = [], message = nil,
success: nil, **opt)
args = Array(args).dup
args.insert((Hash === args[0] ? 1 : 0), '--disable=gems')
stdout, stderr, status = EnvUtil.invoke_ruby(args, test_stdin, true, true, **opt)
desc = FailDesc[status, message, stderr]
if block_given?
raise "test_stdout ignored, use block only or without block" if test_stdout != []
raise "test_stderr ignored, use block only or without block" if test_stderr != []
yield(stdout.lines.map {|l| l.chomp }, stderr.lines.map {|l| l.chomp }, status)
else
all_assertions(desc) do |a|
[["stdout", test_stdout, stdout], ["stderr", test_stderr, stderr]].each do |key, exp, act|
a.for(key) do
if exp.is_a?(Regexp)
assert_match(exp, act)
elsif exp.all? {|e| String === e}
assert_equal(exp, act.lines.map {|l| l.chomp })
else
assert_pattern_list(exp, act)
end
end
end
unless success.nil?
a.for("success?") do
if success
assert_predicate(status, :success?)
else
assert_not_predicate(status, :success?)
end
end
end
end
status
end
end
def assert_ruby_status(args, test_stdin="", message=nil, **opt)
out, _, status = EnvUtil.invoke_ruby(args, test_stdin, true, :merge_to_stdout, **opt)
desc = FailDesc[status, message, out]
assert(!status.signaled?, desc)
message ||= "ruby exit status is not success:"
assert(status.success?, desc)
end
ABORT_SIGNALS = Signal.list.values_at(*%w"ILL ABRT BUS SEGV TERM")
def assert_separately(args, file = nil, line = nil, src, ignore_stderr: nil, **opt)
unless file and line
loc, = caller_locations(1,1)
file ||= loc.path
line ||= loc.lineno
end
src = <<eom
# -*- coding: #{line += __LINE__; src.encoding}; -*-
require "test/unit";include Test::Unit::Assertions;require #{(__dir__ + "/core_assertions").dump};include Test::Unit::CoreAssertions
END {
puts [Marshal.dump($!)].pack('m'), "assertions=\#{self._assertions}"
}
#{line -= __LINE__; src}
class Test::Unit::Runner
@@stop_auto_run = true
end
eom
args = args.dup
args.insert((Hash === args.first ? 1 : 0), "-w", "--disable=gems", *$:.map {|l| "-I#{l}"})
stdout, stderr, status = EnvUtil.invoke_ruby(args, src, true, true, **opt)
abort = status.coredump? || (status.signaled? && ABORT_SIGNALS.include?(status.termsig))
assert(!abort, FailDesc[status, nil, stderr])
self._assertions += stdout[/^assertions=(\d+)/, 1].to_i
begin
res = Marshal.load(stdout.unpack("m")[0])
rescue => marshal_error
ignore_stderr = nil
end
if res
if bt = res.backtrace
bt.each do |l|
l.sub!(/\A-:(\d+)/){"#{file}:#{line + $1.to_i}"}
end
bt.concat(caller)
else
res.set_backtrace(caller)
end
raise res unless SystemExit === res
end
# really is it succeed?
unless ignore_stderr
# the body of assert_separately must not output anything to detect error
assert(stderr.empty?, FailDesc[status, "assert_separately failed with error message", stderr])
end
assert(status.success?, FailDesc[status, "assert_separately failed", stderr])
raise marshal_error if marshal_error
end
# :call-seq:
# assert_throw( tag, failure_message = nil, &block )
#
#Fails unless the given block throws +tag+, returns the caught
#value otherwise.
#
#An optional failure message may be provided as the final argument.
#
# tag = Object.new
# assert_throw(tag, "#{tag} was not thrown!") do
# throw tag
# end
def assert_throw(tag, msg = nil)
ret = catch(tag) do
begin
yield(tag)
rescue UncaughtThrowError => e
thrown = e.tag
end
msg = message(msg) {
"Expected #{mu_pp(tag)} to have been thrown"\
"#{%Q[, not #{thrown}] if thrown}"
}
assert(false, msg)
end
assert(true)
ret
end
# :call-seq:
# assert_raise( *args, &block )
#
#Tests if the given block raises an exception. Acceptable exception
#types may be given as optional arguments. If the last argument is a
#String, it will be used as the error message.
#
# assert_raise do #Fails, no Exceptions are raised
# end
#
# assert_raise NameError do
# puts x #Raises NameError, so assertion succeeds
# end
def assert_raise(*exp, &b)
case exp.last
when String, Proc
msg = exp.pop
end
begin
yield
rescue MiniTest::Skip => e
return e if exp.include? MiniTest::Skip
raise e
rescue Exception => e
expected = exp.any? { |ex|
if ex.instance_of? Module then
e.kind_of? ex
else
e.instance_of? ex
end
}
assert expected, proc {
flunk(message(msg) {"#{mu_pp(exp)} exception expected, not #{mu_pp(e)}"})
}
return e
ensure
unless e
exp = exp.first if exp.size == 1
flunk(message(msg) {"#{mu_pp(exp)} expected but nothing was raised"})
end
end
end
# :call-seq:
# assert_raise_with_message(exception, expected, msg = nil, &block)
#
#Tests if the given block raises an exception with the expected
#message.
#
# assert_raise_with_message(RuntimeError, "foo") do
# nil #Fails, no Exceptions are raised
# end
#
# assert_raise_with_message(RuntimeError, "foo") do
# raise ArgumentError, "foo" #Fails, different Exception is raised
# end
#
# assert_raise_with_message(RuntimeError, "foo") do
# raise "bar" #Fails, RuntimeError is raised but the message differs
# end
#
# assert_raise_with_message(RuntimeError, "foo") do
# raise "foo" #Raises RuntimeError with the message, so assertion succeeds
# end
def assert_raise_with_message(exception, expected, msg = nil, &block)
case expected
when String
assert = :assert_equal
when Regexp
assert = :assert_match
else
raise TypeError, "Expected #{expected.inspect} to be a kind of String or Regexp, not #{expected.class}"
end
ex = m = nil
EnvUtil.with_default_internal(expected.encoding) do
ex = assert_raise(exception, msg || proc {"Exception(#{exception}) with message matches to #{expected.inspect}"}) do
yield
end
m = ex.message
end
msg = message(msg, "") {"Expected Exception(#{exception}) was raised, but the message doesn't match"}
if assert == :assert_equal
assert_equal(expected, m, msg)
else
msg = message(msg) { "Expected #{mu_pp expected} to match #{mu_pp m}" }
assert expected =~ m, msg
block.binding.eval("proc{|_|$~=_}").call($~)
end
ex
end
def assert_warning(pat, msg = nil)
result = nil
stderr = EnvUtil.with_default_internal(pat.encoding) {
EnvUtil.verbose_warning {
result = yield
}
}
msg = message(msg) {diff pat, stderr}
assert(pat === stderr, msg)
result
end
def assert_warn(*args)
assert_warning(*args) {$VERBOSE = false; yield}
end
class << (AssertFile = Struct.new(:failure_message).new)
include CoreAssertions
def assert_file_predicate(predicate, *args)
if /\Anot_/ =~ predicate
predicate = $'
neg = " not"
end
result = File.__send__(predicate, *args)
result = !result if neg
mesg = "Expected file ".dup << args.shift.inspect
mesg << "#{neg} to be #{predicate}"
mesg << mu_pp(args).sub(/\A\[(.*)\]\z/m, '(\1)') unless args.empty?
mesg << " #{failure_message}" if failure_message
assert(result, mesg)
end
alias method_missing assert_file_predicate
def for(message)
clone.tap {|a| a.failure_message = message}
end
end
class AllFailures
attr_reader :failures
def initialize
@count = 0
@failures = {}
end
def for(key)
@count += 1
yield
rescue Exception => e
@failures[key] = [@count, e]
end
def foreach(*keys)
keys.each do |key|
@count += 1
begin
yield key
rescue Exception => e
@failures[key] = [@count, e]
end
end
end
def message
i = 0
total = @count.to_s
fmt = "%#{total.size}d"
@failures.map {|k, (n, v)|
v = v.message
"\n#{i+=1}. [#{fmt%n}/#{total}] Assertion for #{k.inspect}\n#{v.b.gsub(/^/, ' | ').force_encoding(v.encoding)}"
}.join("\n")
end
def pass?
@failures.empty?
end
end
# threads should respond to shift method.
# Array can be used.
def assert_join_threads(threads, message = nil)
errs = []
values = []
while th = threads.shift
begin
values << th.value
rescue Exception
errs << [th, $!]
th = nil
end
end
values
ensure
if th&.alive?
th.raise(Timeout::Error.new)
th.join rescue errs << [th, $!]
end
if !errs.empty?
msg = "exceptions on #{errs.length} threads:\n" +
errs.map {|t, err|
"#{t.inspect}:\n" +
RUBY_VERSION >= "2.5.0" ? err.full_message(highlight: false, order: :top) : err.message
}.join("\n---\n")
if message
msg = "#{message}\n#{msg}"
end
raise MiniTest::Assertion, msg
end
end
def assert_all_assertions(msg = nil)
all = AllFailures.new
yield all
ensure
assert(all.pass?, message(msg) {all.message.chomp(".")})
end
alias all_assertions assert_all_assertions
# Expect +seq+ to respond to +first+ and +each+ methods, e.g.,
# Array, Range, Enumerator::ArithmeticSequence and other
# Enumerable-s, and each elements should be size factors.
#
# :yield: each elements of +seq+.
def assert_linear_performance(seq, rehearsal: nil, pre: ->(n) {n})
first = seq.first
*arg = pre.call(first)
times = (0..(rehearsal || (2 * first))).map do
st = Process.clock_gettime(Process::CLOCK_MONOTONIC)
yield(*arg)
t = (Process.clock_gettime(Process::CLOCK_MONOTONIC) - st)
assert_operator 0, :<=, t
t.nonzero?
end
times.compact!
tmin, tmax = times.minmax
tmax *= tmax / tmin
tmax = 10**Math.log10(tmax).ceil
seq.each do |i|
next if i == first
t = tmax * i.fdiv(first)
*arg = pre.call(i)
message = "[#{i}]: in #{t}s"
Timeout.timeout(t, Timeout::Error, message) do
st = Process.clock_gettime(Process::CLOCK_MONOTONIC)
yield(*arg)
assert_operator (Process.clock_gettime(Process::CLOCK_MONOTONIC) - st), :<=, t, message
end
end
end
def message(msg = nil, *args, &default) # :nodoc:
if Proc === msg
super(nil, *args) do
ary = [msg.call, (default.call if default)].compact.reject(&:empty?)
if 1 < ary.length
ary[0...-1] = ary[0...-1].map {|str| str.sub(/(?<!\.)\z/, '.') }
end
begin
ary.join("\n")
rescue Encoding::CompatibilityError
ary.map(&:b).join("\n")
end
end
else
super
end
end
end
end
end
|