diff options
Diffstat (limited to 'ruby_1_9_3/lib/test/unit/assertions.rb')
| -rw-r--r-- | ruby_1_9_3/lib/test/unit/assertions.rb | 324 |
1 files changed, 324 insertions, 0 deletions
diff --git a/ruby_1_9_3/lib/test/unit/assertions.rb b/ruby_1_9_3/lib/test/unit/assertions.rb new file mode 100644 index 0000000000..39a3c85600 --- /dev/null +++ b/ruby_1_9_3/lib/test/unit/assertions.rb @@ -0,0 +1,324 @@ +require 'minitest/unit' +require 'pp' + +module Test + module Unit + module Assertions + include MiniTest::Assertions + + def mu_pp(obj) #:nodoc: + obj.pretty_inspect.chomp + end + + MINI_DIR = File.join(File.dirname(File.dirname(File.expand_path(__FILE__))), "minitest") #:nodoc: + + UNASSIGNED = Object.new # :nodoc: + + # :call-seq: + # assert( test, failure_message = UNASSIGNED ) + # + #Tests if +test+ is true. + # + #+msg+ may be a String or a Proc. If +msg+ is a String, it will be used + #as the failure message. Otherwise, the result of calling +msg+ will be + #used as the message if the assertion fails. + # + #If no +msg+ is given, a default message will be used. + # + # assert(false, "This was expected to be true") + def assert(test, msg = UNASSIGNED) + case msg + when UNASSIGNED + msg = nil + when String, Proc + else + bt = caller.reject { |s| s.rindex(MINI_DIR, 0) } + raise ArgumentError, "assertion message must be String or Proc, but #{msg.class} was given.", bt + end + super + end + + # :call-seq: + # assert_block( failure_message = nil ) + # + #Tests the result of the given block. If the block does not return true, + #the assertion will fail. The optional +failure_message+ argument is the same as in + #Assertions#assert. + # + # assert_block do + # [1, 2, 3].any? { |num| num < 1 } + # end + def assert_block(*msgs) + assert yield, *msgs + end + + # :call-seq: + # assert_raise( *args, &block ) + # + #Tests if the given block raises an exception. Acceptable exception + #types maye 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(*args, &b) + assert_raises(*args, &b) + end + + # :call-seq: + # assert_nothing_raised( *args, &block ) + # + #If any exceptions are given as arguments, the assertion will + #fail if one of those exceptions are raised. Otherwise, the test fails + #if any exceptions are raised. + # + #The final argument may be a failure message. + # + # assert_nothing_raised RuntimeError do + # raise Exception #Assertion passes, Exception is not a RuntimeError + # end + # + # assert_nothing_raised do + # raise Exception #Assertion fails + # end + def assert_nothing_raised(*args) + self._assertions += 1 + if Module === args.last + msg = nil + else + msg = args.pop + end + begin + line = __LINE__; yield + rescue MiniTest::Skip + raise + rescue Exception => e + bt = e.backtrace + as = e.instance_of?(MiniTest::Assertion) + if as + ans = /\A#{Regexp.quote(__FILE__)}:#{line}:in /o + bt.reject! {|ln| ans =~ ln} + end + if ((args.empty? && !as) || + args.any? {|a| a.instance_of?(Module) ? e.is_a?(a) : e.class == a }) + msg = message(msg) { "Exception raised:\n<#{mu_pp(e)}>" } + raise MiniTest::Assertion, msg.call, bt + else + raise + end + end + nil + end + + # :call-seq: + # assert_nothing_thrown( failure_message = nil, &block ) + # + #Fails if the given block uses a call to Kernel#throw. + # + #An optional failure message may be provided as the final argument. + # + # assert_nothing_thrown "Something was thrown!" do + # throw :problem? + # end + def assert_nothing_thrown(msg=nil) + begin + yield + rescue ArgumentError => error + raise error if /\Auncaught throw (.+)\z/m !~ error.message + msg = message(msg) { "<#{$1}> was thrown when nothing was expected" } + flunk(msg) + end + assert(true, "Expected nothing to be thrown") + end + + # :call-seq: + # assert_equal( expected, actual, failure_message = nil ) + # + #Tests if +expected+ is equal to +actual+. + # + #An optional failure message may be provided as the final argument. + def assert_equal(exp, act, msg = nil) + msg = message(msg) { + exp_str = mu_pp(exp) + act_str = mu_pp(act) + exp_comment = '' + act_comment = '' + if exp_str == act_str + if (exp.is_a?(String) && act.is_a?(String)) || + (exp.is_a?(Regexp) && act.is_a?(Regexp)) + exp_comment = " (#{exp.encoding})" + act_comment = " (#{act.encoding})" + elsif exp.is_a?(Float) && act.is_a?(Float) + exp_str = "%\#.#{Float::DIG+2}g" % exp + act_str = "%\#.#{Float::DIG+2}g" % act + elsif exp.is_a?(Time) && act.is_a?(Time) + if exp.subsec * 1000_000_000 == exp.nsec + exp_comment = " (#{exp.nsec}[ns])" + else + exp_comment = " (subsec=#{exp.subsec})" + end + if act.subsec * 1000_000_000 == act.nsec + act_comment = " (#{act.nsec}[ns])" + else + act_comment = " (subsec=#{act.subsec})" + end + elsif exp.class != act.class + # a subclass of Range, for example. + exp_comment = " (#{exp.class})" + act_comment = " (#{act.class})" + end + elsif !Encoding.compatible?(exp_str, act_str) + if exp.is_a?(String) && act.is_a?(String) + exp_str = exp.dump + act_str = act.dump + exp_comment = " (#{exp.encoding})" + act_comment = " (#{act.encoding})" + else + exp_str = exp_str.dump + act_str = act_str.dump + end + end + "<#{exp_str}>#{exp_comment} expected but was\n<#{act_str}>#{act_comment}" + } + assert(exp == act, msg) + end + + # :call-seq: + # assert_not_nil( expression, failure_message = nil ) + # + #Tests if +expression+ is not nil. + # + #An optional failure message may be provided as the final argument. + def assert_not_nil(exp, msg=nil) + msg = message(msg) { "<#{mu_pp(exp)}> expected to not be nil" } + assert(!exp.nil?, msg) + end + + # :call-seq: + # assert_not_equal( expected, actual, failure_message = nil ) + # + #Tests if +expected+ is not equal to +actual+. + # + #An optional failure message may be provided as the final argument. + def assert_not_equal(exp, act, msg=nil) + msg = message(msg) { "<#{mu_pp(exp)}> expected to be != to\n<#{mu_pp(act)}>" } + assert(exp != act, msg) + end + + # :call-seq: + # assert_no_match( regexp, string, failure_message = nil ) + # + #Tests if the given Regexp does not match a given String. + # + #An optional failure message may be provided as the final argument. + def assert_no_match(regexp, string, msg=nil) + assert_instance_of(Regexp, regexp, "The first argument to assert_no_match should be a Regexp.") + self._assertions -= 1 + msg = message(msg) { "<#{mu_pp(regexp)}> expected to not match\n<#{mu_pp(string)}>" } + assert(regexp !~ string, msg) + end + + # :call-seq: + # assert_not_same( expected, actual, failure_message = nil ) + # + #Tests if +expected+ is not the same object as +actual+. + #This test uses Object#equal? to test equality. + # + #An optional failure message may be provided as the final argument. + # + # assert_not_same("x", "x") #Succeeds + def assert_not_same(expected, actual, message="") + msg = message(msg) { build_message(message, <<EOT, expected, expected.__id__, actual, actual.__id__) } +<?> +with id <?> expected to not be equal\\? to +<?> +with id <?>. +EOT + assert(!actual.equal?(expected), msg) + end + + # :call-seq: + # assert_respond_to( object, method, failure_message = nil ) + # + #Tests if the given Object responds to +method+. + # + #An optional failure message may be provided as the final argument. + # + # assert_respond_to("hello", :reverse) #Succeeds + # assert_respond_to("hello", :does_not_exist) #Fails + def assert_respond_to obj, meth, msg = nil + #get rid of overcounting + super if !caller[0].rindex(MINI_DIR, 0) || !obj.respond_to?(meth) + end + + # :call-seq: + # assert_send( +send_array+, failure_message = nil ) + # + # Passes if the method send returns a true value. + # + # +send_array+ is composed of: + # * A receiver + # * A method + # * Arguments to the method + # + # Example: + # assert_send([[1, 2], :member?, 1]) # -> pass + # assert_send([[1, 2], :member?, 4]) # -> fail + def assert_send send_ary, m = nil + recv, msg, *args = send_ary + m = message(m) { + if args.empty? + argsstr = "" + else + (argsstr = mu_pp(args)).sub!(/\A\[(.*)\]\z/m, '(\1)') + end + "Expected #{mu_pp(recv)}.#{msg}#{argsstr} to return true" + } + assert recv.__send__(msg, *args), m + end + + # :call-seq: + # assert_not_send( +send_array+, failure_message = nil ) + # + # Passes if the method send doesn't return a true value. + # + # +send_array+ is composed of: + # * A receiver + # * A method + # * Arguments to the method + # + # Example: + # assert_not_send([[1, 2], :member?, 1]) # -> fail + # assert_not_send([[1, 2], :member?, 4]) # -> pass + def assert_not_send send_ary, m = nil + recv, msg, *args = send_ary + m = message(m) { + if args.empty? + argsstr = "" + else + (argsstr = mu_pp(args)).sub!(/\A\[(.*)\]\z/m, '(\1)') + end + "Expected #{mu_pp(recv)}.#{msg}#{argsstr} to return false" + } + assert !recv.__send__(msg, *args), m + end + + ms = instance_methods(true).map {|sym| sym.to_s } + ms.grep(/\Arefute_/) do |m| + mname = ('assert_not_' << m.to_s[/.*?_(.*)/, 1]) + alias_method(mname, m) unless ms.include? mname + end + alias assert_include assert_includes + alias assert_not_include assert_not_includes + + def build_message(head, template=nil, *arguments) #:nodoc: + template &&= template.chomp + template.gsub(/\G((?:[^\\]|\\.)*?)(\\)?\?/) { $1 + ($2 ? "?" : mu_pp(arguments.shift)) } + end + end + end +end |