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|
############################################################
# This file is imported from a different project.
# DO NOT make modifications in this repo.
# File a patch instead and assign it to Ryan Davis
############################################################
require 'optparse'
##
# Minimal (mostly drop-in) replacement for test-unit.
#
# :include: README.txt
module MiniTest
##
# Assertion base class
class Assertion < Exception; end
##
# Assertion raised when skipping a test
class Skip < Assertion; end
file = if RUBY_VERSION =~ /^1\.9/ then # bt's expanded, but __FILE__ isn't :(
File.expand_path __FILE__
elsif __FILE__ =~ /^[^\.]/ then # assume both relative
require 'pathname'
pwd = Pathname.new Dir.pwd
pn = Pathname.new File.expand_path(__FILE__)
relpath = pn.relative_path_from(pwd) rescue pn
pn = File.join ".", relpath unless pn.relative?
pn.to_s
else # assume both are expanded
__FILE__
end
# './lib' in project dir, or '/usr/local/blahblah' if installed
MINI_DIR = File.dirname(File.dirname(file)) # :nodoc:
def self.filter_backtrace bt # :nodoc:
return ["No backtrace"] unless bt
new_bt = []
unless $DEBUG then
bt.each do |line|
break if line.rindex MINI_DIR, 0
new_bt << line
end
new_bt = bt.reject { |line| line.rindex MINI_DIR, 0 } if new_bt.empty?
new_bt = bt.dup if new_bt.empty?
else
new_bt = bt.dup
end
new_bt
end
##
# MiniTest Assertions. All assertion methods accept a +msg+ which is
# printed if the assertion fails.
module Assertions
##
# mu_pp gives a human-readable version of +obj+. By default #inspect is
# called. You can override this to use #pretty_print if you want.
def mu_pp obj
s = obj.inspect
s = s.force_encoding Encoding.default_external if defined? Encoding
s
end
def _assertions= n # :nodoc:
@_assertions = n
end
def _assertions # :nodoc:
@_assertions ||= 0
end
##
# Fails unless +test+ is a true value.
def assert test, msg = nil
msg ||= "Failed assertion, no message given."
self._assertions += 1
unless test then
msg = msg.call if Proc === msg
raise MiniTest::Assertion, msg
end
true
end
##
# Fails unless the block returns a true value.
def assert_block msg = nil
assert yield, "Expected block to return true value."
end
##
# Fails unless +obj+ is empty.
def assert_empty obj, msg = nil
msg = message(msg) { "Expected #{mu_pp(obj)} to be empty" }
assert_respond_to obj, :empty?
assert obj.empty?, msg
end
##
# Fails unless <tt>exp == act</tt>.
#
# For floats use assert_in_delta
def assert_equal exp, act, msg = nil
msg = message(msg) { "Expected #{mu_pp(exp)}, not #{mu_pp(act)}" }
assert(exp == act, msg)
end
##
# For comparing Floats. Fails unless +exp+ and +act+ are within +delta+
# of each other.
#
# assert_in_delta Math::PI, (22.0 / 7.0), 0.01
def assert_in_delta exp, act, delta = 0.001, msg = nil
n = (exp - act).abs
msg = message(msg) { "Expected #{exp} - #{act} (#{n}) to be < #{delta}" }
assert delta >= n, msg
end
##
# For comparing Floats. Fails unless +exp+ and +act+ have a relative
# error less than +epsilon+.
def assert_in_epsilon a, b, epsilon = 0.001, msg = nil
assert_in_delta a, b, [a, b].min * epsilon, msg
end
##
# Fails unless +collection+ includes +obj+.
def assert_includes collection, obj, msg = nil
msg = message(msg) {
"Expected #{mu_pp(collection)} to include #{mu_pp(obj)}"
}
assert_respond_to collection, :include?
assert collection.include?(obj), msg
end
##
# Fails unless +obj+ is an instace of +cls+.
def assert_instance_of cls, obj, msg = nil
msg = message(msg) {
"Expected #{mu_pp(obj)} to be an instance of #{cls}, not #{obj.class}"
}
assert obj.instance_of?(cls), msg
end
##
# Fails unless +obj+ is a kind of +cls+.
def assert_kind_of cls, obj, msg = nil # TODO: merge with instance_of
msg = message(msg) {
"Expected #{mu_pp(obj)} to be a kind of #{cls}, not #{obj.class}" }
assert obj.kind_of?(cls), msg
end
##
# Fails unless +exp+ is <tt>=~</tt> +act+.
def assert_match exp, act, msg = nil
msg = message(msg) { "Expected #{mu_pp(exp)} to match #{mu_pp(act)}" }
assert_respond_to act, :"=~"
exp = /#{Regexp.escape exp}/ if String === exp && String === act
assert exp =~ act, msg
end
##
# Fails unless +obj+ is nil
def assert_nil obj, msg = nil
msg = message(msg) { "Expected #{mu_pp(obj)} to be nil" }
assert obj.nil?, msg
end
##
# For testing equality operators and so-forth.
#
# assert_operator 5, :<=, 4
def assert_operator o1, op, o2, msg = nil
msg = message(msg) { "Expected #{mu_pp(o1)} to be #{op} #{mu_pp(o2)}" }
assert o1.__send__(op, o2), msg
end
##
# Fails if stdout or stderr do not output the expected results.
# Pass in nil if you don't care about that streams output. Pass in
# "" if you require it to be silent.
#
# See also: #assert_silent
def assert_output stdout = nil, stderr = nil
out, err = capture_io do
yield
end
x = assert_equal stdout, out, "In stdout" if stdout
y = assert_equal stderr, err, "In stderr" if stderr
(!stdout || x) && (!stderr || y)
end
##
# Fails unless the block raises one of +exp+
def assert_raises *exp
msg = String === exp.last ? exp.pop : nil
msg = msg.to_s + "\n" if msg
should_raise = false
begin
yield
should_raise = true
rescue MiniTest::Skip => e
details = "#{msg}#{mu_pp(exp)} exception expected, not"
if exp.include? MiniTest::Skip then
return e
else
raise e
end
rescue Exception => e
details = "#{msg}#{mu_pp(exp)} exception expected, not"
assert(exp.any? { |ex|
ex.instance_of?(Module) ? e.kind_of?(ex) : ex == e.class
}, exception_details(e, details))
return e
end
exp = exp.first if exp.size == 1
flunk "#{msg}#{mu_pp(exp)} expected but nothing was raised." if
should_raise
end
##
# Fails unless +obj+ responds to +meth+.
def assert_respond_to obj, meth, msg = nil
msg = message(msg) {
"Expected #{mu_pp(obj)} (#{obj.class}) to respond to ##{meth}"
}
assert obj.respond_to?(meth), msg
end
##
# Fails unless +exp+ and +act+ are #equal?
def assert_same exp, act, msg = nil
msg = message(msg) {
data = [mu_pp(act), act.object_id, mu_pp(exp), exp.object_id]
"Expected %s (oid=%d) to be the same as %s (oid=%d)" % data
}
assert exp.equal?(act), msg
end
##
# +send_ary+ is a receiver, message and arguments.
#
# Fails unless the call returns a true value
# TODO: I should prolly remove this from specs
def assert_send send_ary, m = nil
recv, msg, *args = send_ary
m = message(m) {
"Expected #{mu_pp(recv)}.#{msg}(*#{mu_pp(args)}) to return true" }
assert recv.__send__(msg, *args), m
end
##
# Fails if the block outputs anything to stderr or stdout.
#
# See also: #assert_output
def assert_silent
assert_output "", "" do
yield
end
end
##
# Fails unless the block throws +sym+
def assert_throws sym, msg = nil
default = "Expected #{mu_pp(sym)} to have been thrown"
caught = true
catch(sym) do
begin
yield
rescue ArgumentError => e # 1.9 exception
default += ", not #{e.message.split(/ /).last}"
rescue NameError => e # 1.8 exception
default += ", not #{e.name.inspect}"
end
caught = false
end
assert caught, message(msg) { default }
end
##
# Captures $stdout and $stderr into strings:
#
# out, err = capture_io do
# warn "You did a bad thing"
# end
#
# assert_match %r%bad%, err
def capture_io
require 'stringio'
orig_stdout, orig_stderr = $stdout, $stderr
captured_stdout, captured_stderr = StringIO.new, StringIO.new
$stdout, $stderr = captured_stdout, captured_stderr
yield
return captured_stdout.string, captured_stderr.string
ensure
$stdout = orig_stdout
$stderr = orig_stderr
end
##
# Returns details for exception +e+
def exception_details e, msg
"#{msg}\nClass: <#{e.class}>\nMessage: <#{e.message.inspect}>\n---Backtrace---\n#{MiniTest::filter_backtrace(e.backtrace).join("\n")}\n---------------"
end
##
# Fails with +msg+
def flunk msg = nil
msg ||= "Epic Fail!"
assert false, msg
end
##
# Returns a proc that will output +msg+ along with the default message.
def message msg = nil, &default
proc {
if msg then
msg = msg.to_s unless String === msg
msg += '.' unless msg.empty?
msg += "\n#{default.call}."
msg.strip
else
"#{default.call}."
end
}
end
##
# used for counting assertions
def pass msg = nil
assert true
end
##
# Fails if +test+ is a true value
def refute test, msg = nil
msg ||= "Failed refutation, no message given"
not assert(! test, msg)
end
##
# Fails if +obj+ is empty.
def refute_empty obj, msg = nil
msg = message(msg) { "Expected #{obj.inspect} to not be empty" }
assert_respond_to obj, :empty?
refute obj.empty?, msg
end
##
# Fails if <tt>exp == act</tt>.
#
# For floats use refute_in_delta.
def refute_equal exp, act, msg = nil
msg = message(msg) {
"Expected #{mu_pp(act)} to not be equal to #{mu_pp(exp)}"
}
refute exp == act, msg
end
##
# For comparing Floats. Fails if +exp+ is within +delta+ of +act+
#
# refute_in_delta Math::PI, (22.0 / 7.0)
def refute_in_delta exp, act, delta = 0.001, msg = nil
n = (exp - act).abs
msg = message(msg) {
"Expected #{exp} - #{act} (#{n}) to not be < #{delta}"
}
refute delta > n, msg
end
##
# For comparing Floats. Fails if +exp+ and +act+ have a relative error
# less than +epsilon+.
def refute_in_epsilon a, b, epsilon = 0.001, msg = nil
refute_in_delta a, b, a * epsilon, msg
end
##
# Fails if +collection+ includes +obj+
def refute_includes collection, obj, msg = nil
msg = message(msg) {
"Expected #{mu_pp(collection)} to not include #{mu_pp(obj)}"
}
assert_respond_to collection, :include?
refute collection.include?(obj), msg
end
##
# Fails if +obj+ is an instance of +cls+
def refute_instance_of cls, obj, msg = nil
msg = message(msg) {
"Expected #{mu_pp(obj)} to not be an instance of #{cls}"
}
refute obj.instance_of?(cls), msg
end
##
# Fails if +obj+ is a kind of +cls+
def refute_kind_of cls, obj, msg = nil # TODO: merge with instance_of
msg = message(msg) { "Expected #{mu_pp(obj)} to not be a kind of #{cls}" }
refute obj.kind_of?(cls), msg
end
##
# Fails if +exp+ <tt>=~</tt> +act+
def refute_match exp, act, msg = nil
msg = message(msg) { "Expected #{mu_pp(exp)} to not match #{mu_pp(act)}" }
assert_respond_to act, :"=~"
exp = (/#{Regexp.escape exp}/) if String === exp and String === act
refute exp =~ act, msg
end
##
# Fails if +obj+ is nil.
def refute_nil obj, msg = nil
msg = message(msg) { "Expected #{mu_pp(obj)} to not be nil" }
refute obj.nil?, msg
end
##
# Fails if +o1+ is not +op+ +o2+ nil. eg:
#
# refute_operator 1, :>, 2 #=> pass
# refute_operator 1, :<, 2 #=> fail
def refute_operator o1, op, o2, msg = nil
msg = message(msg) {
"Expected #{mu_pp(o1)} to not be #{op} #{mu_pp(o2)}"
}
refute o1.__send__(op, o2), msg
end
##
# Fails if +obj+ responds to the message +meth+.
def refute_respond_to obj, meth, msg = nil
msg = message(msg) { "Expected #{mu_pp(obj)} to not respond to #{meth}" }
refute obj.respond_to?(meth), msg
end
##
# Fails if +exp+ is the same (by object identity) as +act+.
def refute_same exp, act, msg = nil
msg = message(msg) {
data = [mu_pp(act), act.object_id, mu_pp(exp), exp.object_id]
"Expected %s (oid=%d) to not be the same as %s (oid=%d)" % data
}
refute exp.equal?(act), msg
end
##
# Skips the current test. Gets listed at the end of the run but
# doesn't cause a failure exit code.
def skip msg = nil, bt = caller
msg ||= "Skipped, no message given"
raise MiniTest::Skip, msg, bt
end
end
class Unit
VERSION = "2.0.2" # :nodoc:
attr_accessor :report, :failures, :errors, :skips # :nodoc:
attr_accessor :test_count, :assertion_count # :nodoc:
attr_accessor :start_time # :nodoc:
attr_accessor :help # :nodoc:
attr_accessor :verbose # :nodoc:
attr_writer :options # :nodoc:
def options
@options ||= {}
end
@@installed_at_exit ||= false
@@out = $stdout
##
# A simple hook allowing you to run a block of code after the
# tests are done. Eg:
#
# MiniTest::Unit.after_tests { p $debugging_info }
def self.after_tests
at_exit { at_exit { yield } }
end
##
# Registers MiniTest::Unit to run tests at process exit
def self.autorun
at_exit {
next if $! # don't run if there was an exception
# 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 { 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
##
# Returns the stream to use for output.
#
# DEPRECATED: use ::output instead.
def self.out
warn "::out deprecated, use ::output instead." if $VERBOSE
output
end
##
# Sets MiniTest::Unit to write output to +stream+. $stdout is the default
# output
def self.output= stream
@@out = stream
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
def output
self.class.output
end
def puts *a # :nodoc:
output.puts(*a)
end
def print *a # :nodoc:
output.print(*a)
end
def _run_anything type
suites = TestCase.send "#{type}_suites"
return if suites.empty?
start = Time.now
puts
puts "# Running #{type}s:"
puts
@test_count, @assertion_count = 0, 0
sync = output.respond_to? :"sync=" # stupid emacs
old_sync, output.sync = output.sync, true if sync
results = _run_suites suites, type
@test_count = results.inject(0) { |sum, (tc, _)| sum + tc }
@assertion_count = results.inject(0) { |sum, (_, ac)| sum + ac }
output.sync = old_sync if sync
t = Time.now - start
puts
puts
puts "Finished #{type}s in %.6fs, %.4f tests/s, %.4f assertions/s." %
[t, test_count / t, assertion_count / t]
report.each_with_index do |msg, i|
puts "\n%3d) %s" % [i + 1, msg]
end
puts
status
end
def _run_suites suites, type
suites.map { |suite| _run_suite suite, type }
end
def _run_suite suite, type
header = "#{type}_suite_header"
puts send(header, suite) if respond_to? header
filter = options[:filter] || '/./'
filter = Regexp.new $1 if filter =~ /\/(.*)\//
assertions = suite.send("#{type}_methods").grep(filter).map { |method|
inst = suite.new method
inst._assertions = 0
print "#{suite}##{method} = " if @verbose
@start_time = Time.now
result = inst.run self
time = Time.now - @start_time
print "%.2f s = " % time if @verbose
print result
puts if @verbose
inst._assertions
}
return assertions.size, assertions.inject(0) { |sum, n| sum + n }
end
def location e # :nodoc:
last_before_assertion = ""
e.backtrace.reverse_each do |s|
break if s =~ /in .(assert|refute|flunk|pass|fail|raise|must|wont)/
last_before_assertion = s
end
last_before_assertion.sub(/:in .*$/, '')
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
"Skipped:\n#{meth}(#{klass}) [#{location e}]:\n#{e.message}\n"
when MiniTest::Assertion then
@failures += 1
"Failure:\n#{meth}(#{klass}) [#{location e}]:\n#{e.message}\n"
else
@errors += 1
bt = MiniTest::filter_backtrace(e.backtrace).join "\n "
"Error:\n#{meth}(#{klass}):\n#{e.class}: #{e.message}\n #{bt}\n"
end
@report << e
e[0, 1]
end
def initialize # :nodoc:
@report = []
@errors = @failures = @skips = 0
@verbose = false
end
def process_args args = []
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." 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
##
# Top level driver, controls all output and filtering.
def run args = []
self.options = process_args args
puts "Run options: #{help}"
self.class.plugins.each do |plugin|
send plugin
break unless report.empty?
end
return failures + errors if @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
##
# Subclass TestCase to create your own tests. Typically you'll want a
# TestCase subclass per implementation class.
#
# See MiniTest::Assertions
class TestCase
attr_reader :__name__ # :nodoc:
PASSTHROUGH_EXCEPTIONS = [NoMemoryError, SignalException,
Interrupt, SystemExit] # :nodoc:
SUPPORTS_INFO_SIGNAL = Signal.list['INFO'] # :nodoc:
##
# Runs the tests reporting the status to +runner+
def run runner
trap "INFO" do
time = runner.start_time ? Time.now - runner.start_time : 0
warn "%s#%s %.2fs" % [self.class, self.__name__, time]
runner.status $stderr
end if SUPPORTS_INFO_SIGNAL
result = ""
begin
@passed = nil
self.setup
self.__send__ self.__name__
result = "." unless io?
@passed = true
rescue *PASSTHROUGH_EXCEPTIONS
raise
rescue Exception => e
@passed = false
result = runner.puke self.class, self.__name__, e
ensure
begin
self.teardown
rescue *PASSTHROUGH_EXCEPTIONS
raise
rescue Exception => e
result = runner.puke self.class, self.__name__, e
end
trap 'INFO', 'DEFAULT' if SUPPORTS_INFO_SIGNAL
end
result
end
def initialize name # :nodoc:
@__name__ = name
@__io__ = nil
@passed = nil
end
def io
@__io__ = true
MiniTest::Unit.output
end
def io?
@__io__
end
def self.reset # :nodoc:
@@test_suites = {}
end
reset
def self.inherited klass # :nodoc:
@@test_suites[klass] = true
end
##
# Defines test order and is subclassable. Defaults to :random
# but can be overridden to return :alpha if your tests are order
# dependent (read: weak).
def self.test_order
:random
end
def self.test_suites # :nodoc:
@@test_suites.keys.sort_by { |ts| ts.name.to_s }
end
def self.test_methods # :nodoc:
methods = public_instance_methods(true).grep(/^test/).map { |m| m.to_s }
case self.test_order
when :random then
max = methods.size
methods.sort.sort_by { rand max }
when :alpha, :sorted then
methods.sort
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 refactor test initialization.
def setup; end
##
# Runs after every test. Use this to refactor test cleanup.
def teardown; end
include MiniTest::Assertions
end # class TestCase
end # class Unit
end # module MiniTest
if $DEBUG then
module Test # :nodoc:
module Unit # :nodoc:
class TestCase # :nodoc:
def self.inherited x # :nodoc:
# this helps me ferret out porting issues
raise "Using minitest and test/unit in the same process: #{x}"
end
end
end
end
end
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