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note
	description: "Root class to hold tests"
	date: "$Date$"
	revision: "$Revision$"

class 
	ROOT

create 
	make

feature {NONE} -- Initialization

	default_create
			-- Process instances of classes with no creation clause.
			-- (Default: do nothing.)
			-- (from ANY)
		do
		end

	make
			-- Run application.
		do
			add_test (create {TESTS}.make)
			show_browser
			run_espec
		end
	
feature -- Access

	argument (i: INTEGER_32): STRING_8
			-- `i'-th argument of command that started system execution
			-- (the command name if `i' = 0)
			-- (from ARGUMENTS)
		require -- from ARGUMENTS
			index_large_enough: i >= 0
			index_small_enough: i <= argument_count
		do
			Result := Internal_arguments.argument (i).as_string_8
		ensure -- from ARGUMENTS
			argument_not_void: Result /= Void
		end

	Argument_array: ARRAY [STRING_8]
			-- Array containing command name (position 0) and arguments
			-- (from ARGUMENTS)
		once
			Result := internal_argument_array
		ensure -- from ARGUMENTS
			argument_array_not_void: Result /= Void
			argument_array_compare_objects: Result.object_comparison
		end

	Command_line: STRING_8
			-- Total command line
			-- (from ARGUMENTS)
		local
			i: INTEGER_32
		once
			Result := Command_name.twin
			from
				i := 1
			until
				i > argument_count
			loop
				Result.append (" ")
				Result.append (argument (i))
				i := i + 1
			end
		ensure -- from ARGUMENTS
				Result.count >= Command_name.count
		end

	Command_name: STRING_8
			-- Name of command that started system execution
			-- (from ARGUMENTS)
		once
			Result := argument (0)
		ensure -- from ARGUMENTS
			definition: Result ~ argument (0)
		end

	generating_type: TYPE [detachable ROOT]
			-- Type of current object
			-- (type of which it is a direct instance)
			-- (from ANY)
		external
			"built_in"
		ensure -- from ANY
			generating_type_not_void: Result /= Void
		end

	generator: STRING_8
			-- Name of current object's generating class
			-- (base class of the type of which it is a direct instance)
			-- (from ANY)
		external
			"built_in"
		ensure -- from ANY
			generator_not_void: Result /= Void
			generator_not_empty: not Result.is_empty
		end
	
feature -- Measurement

	argument_count: INTEGER_32
			-- Number of arguments given to command that started
			-- system execution (command name does not count)
			-- (from ARGUMENTS)
		do
			Result := Internal_arguments.argument_count
		ensure -- from ARGUMENTS
			argument_count_positive: Result >= 0
		end
	
feature -- Comparison

	frozen deep_equal (a: detachable ANY; b: like arg #1): BOOLEAN
			-- Are `a' and `b' either both void
			-- or attached to isomorphic object structures?
			-- (from ANY)
		do
			if a = Void then
				Result := b = Void
			else
				Result := b /= Void and then a.is_deep_equal (b)
			end
		ensure -- from ANY
			shallow_implies_deep: standard_equal (a, b) implies Result
			both_or_none_void: (a = Void) implies (Result = (b = Void))
			same_type: (Result and (a /= Void)) implies (b /= Void and then a.same_type (b))
			symmetric: Result implies deep_equal (b, a)
		end

	frozen equal (a: detachable ANY; b: like arg #1): BOOLEAN
			-- Are `a' and `b' either both void or attached
			-- to objects considered equal?
			-- (from ANY)
		do
			if a = Void then
				Result := b = Void
			else
				Result := b /= Void and then a.is_equal (b)
			end
		ensure -- from ANY
			definition: Result = (a = Void and b = Void) or else ((a /= Void and b /= Void) and then a.is_equal (b))
		end

	frozen is_deep_equal (other: attached ROOT): BOOLEAN
			-- Are `Current' and `other' attached to isomorphic object structures?
			-- (from ANY)
		require -- from ANY
			other_not_void: other /= Void
		external
			"built_in"
		ensure -- from ANY
			shallow_implies_deep: standard_is_equal (other) implies Result
			same_type: Result implies same_type (other)
			symmetric: Result implies other.is_deep_equal (Current)
		end

	is_equal (other: attached ROOT): BOOLEAN
			-- Is `other' attached to an object considered
			-- equal to current object?
			-- (from ANY)
		require -- from ANY
			other_not_void: other /= Void
		external
			"built_in"
		ensure -- from ANY
			symmetric: Result implies other ~ Current
			consistent: standard_is_equal (other) implies Result
		end

	frozen standard_equal (a: detachable ANY; b: like arg #1): BOOLEAN
			-- Are `a' and `b' either both void or attached to
			-- field-by-field identical objects of the same type?
			-- Always uses default object comparison criterion.
			-- (from ANY)
		do
			if a = Void then
				Result := b = Void
			else
				Result := b /= Void and then a.standard_is_equal (b)
			end
		ensure -- from ANY
			definition: Result = (a = Void and b = Void) or else ((a /= Void and b /= Void) and then a.standard_is_equal (b))
		end

	frozen standard_is_equal (other: attached ROOT): BOOLEAN
			-- Is `other' attached to an object of the same type
			-- as current object, and field-by-field identical to it?
			-- (from ANY)
		require -- from ANY
			other_not_void: other /= Void
		external
			"built_in"
		ensure -- from ANY
			same_type: Result implies same_type (other)
			symmetric: Result implies other.standard_is_equal (Current)
		end
	
feature -- Status report

	coalesced_character_option_value (o: CHARACTER_8): detachable STRING_8
			-- The value, if any, specified for character option `o' on
			-- the command line.
			-- Defined as follows (where 'X' is the current 'option_sign' and
			-- 'xx' is an arbitrary, possibly empty sequence of characters):
			--   `val' if command line includes an argument of the form `Xxxoval'
			--	   (this may be an empty string if argument is just `Xxxo').
			--   Void otherwise.
			-- (from ARGUMENTS)
		require -- from ARGUMENTS
			o_non_null: o /= '%U'
		local
			p: INTEGER_32
			l: STRING_8
		do
			p := index_of_character_option (o)
			if p /= 0 then
				l := Argument_array.item (p).twin
				if Option_sign.item /= '%U' then
					l.remove (1)
				end
				Result := l.substring (l.index_of (o, 1) + 1, l.count)
			end
		end

	coalesced_option_character_value (o: CHARACTER_8): detachable STRING_8
		obsolete "Use coalesced_character_option_value instead."
			-- (from ARGUMENTS)
		do
			Result := coalesced_character_option_value (o)
		end

	coalesced_option_word_value (opt: STRING_8): detachable STRING_8
		obsolete "Use coalesced_word_option_value instead."
			-- (from ARGUMENTS)
		do
			Result := coalesced_word_option_value (opt)
		end

	coalesced_word_option_value (opt: STRING_8): detachable STRING_8
			-- The value, if any, specified for word option `opt' on the
			-- command line.
			-- Defined as follows (where X is the current Option_sign):
			--   `val' if command line includes an argument of the form `Xoptval'
			--	   (this may be an empty string if argument is just `Xopt').
			--   Void otherwise.
			-- (from ARGUMENTS)
		require -- from ARGUMENTS
			opt_non_void: opt /= Void
			opt_meaningful: not opt.is_empty
		local
			p: INTEGER_32
			l: STRING_8
		do
			p := index_of_beginning_with_word_option (opt)
			if p /= 0 then
				l := Argument_array.item (p).twin
				if Option_sign.item /= '%U' then
					l.remove (1)
				end
				Result := l.substring (opt.count + 1, l.count)
			end
		end

	conforms_to (other: ANY): BOOLEAN
			-- Does type of current object conform to type
			-- of `other' (as per Eiffel: The Language, chapter 13)?
			-- (from ANY)
		require -- from ANY
			other_not_void: other /= Void
		external
			"built_in"
		end

	has_character_option (o: CHARACTER_8): INTEGER_32
		obsolete "Use index_of_character_option instead."
			-- (from ARGUMENTS)
		do
			Result := index_of_character_option (o)
		end

	has_word_option (opt: STRING_8): INTEGER_32
		obsolete "Use index_of_word_option instead."
			-- (from ARGUMENTS)
		do
			Result := index_of_word_option (opt)
		end

	index_of_beginning_with_word_option (opt: STRING_8): INTEGER_32
			-- Does command line specify argument beginning with word
			-- option `opt' and, if so, at what position?
			-- If one of the arguments in list of space-separated arguments
			-- is `Xoptxx', where `X' is the current Option_sign, 'xx'
			-- is arbitrary, possibly empty sequence of characters,
			-- then index of this argument in list;
			-- else 0.
			-- (from ARGUMENTS)
		require -- from ARGUMENTS
			opt_non_void: opt /= Void
			opt_meaningful: not opt.is_empty
		local
			i: INTEGER_32
		do
			from
				i := 1
			until
				i > argument_count or else option_word_begins_with (Argument_array.item (i), opt)
			loop
				i := i + 1
			end
			if i <= argument_count then
				Result := i
			end
		end

	index_of_character_option (o: CHARACTER_8): INTEGER_32
			-- Does command line specify character option `o' and, if so,
			-- at what position?
			-- If one of the space-separated arguments is of the form `Xxxoyy',
			-- where `X' is the current Option_sign, `xx' and `yy'
			-- are arbitrary, possibly empty sequences of characters,
			-- then index of this argument in list of arguments;
			-- else 0.
			-- (from ARGUMENTS)
		require -- from ARGUMENTS
			o_non_null: o /= '%U'
		local
			i: INTEGER_32
		do
			from
				i := 1
			until
				i > argument_count or else option_character_equal (Argument_array.item (i), o)
			loop
				i := i + 1
			end
			if i <= argument_count then
				Result := i
			end
		end

	index_of_word_option (opt: STRING_8): INTEGER_32
			-- Does command line specify word option `opt' and, if so,
			-- at what position?
			-- If one of the arguments in list of space-separated arguments
			-- is `Xopt', where `X' is the current Option_sign,
			-- then index of this argument in list;
			-- else 0.
			-- (from ARGUMENTS)
		require -- from ARGUMENTS
			opt_non_void: opt /= Void
			opt_meaningful: not opt.is_empty
		local
			i: INTEGER_32
		do
			from
				i := 1
			until
				i > argument_count or else option_word_equal (Argument_array.item (i), opt)
			loop
				i := i + 1
			end
			if i <= argument_count then
				Result := i
			end
		end

	Option_sign: CHARACTER_8_REF
			-- The character used to signal options on the command line.
			-- This can be '%U' if no sign is necessary for the argument
			-- to be an option
			-- Default is '-'
			-- (from ARGUMENTS)
		once
			create Result
			Result.set_item ('-')
		end

	same_type (other: ANY): BOOLEAN
			-- Is type of current object identical to type of `other'?
			-- (from ANY)
		require -- from ANY
			other_not_void: other /= Void
		external
			"built_in"
		ensure -- from ANY
			definition: Result = (conforms_to (other) and other.conforms_to (Current))
		end

	separate_character_option_value (o: CHARACTER_8): detachable STRING_8
			-- The value, if any, specified after character option `o' on
			-- the command line.
			-- This is one of the following (where `X' is the current
			-- Option_sign, `xx' and 'yy' are arbitrary, possibly empty
			-- sequences of characters):
			--   `val' if command line includes two consecutive arguments
			--	   of the form `Xxxoyy' and `val' respectively.
			--   Empty string if command line includes argument `Xxxoyy', which is
			--	   either last argument or followed by argument starting with `X'.
			--   Void if there is no argument of the form `Xxxoyy'.
			-- (from ARGUMENTS)
		require -- from ARGUMENTS
			o_non_null: o /= '%U'
		local
			p: INTEGER_32
		do
			p := index_of_character_option (o)
			if p /= 0 then
				if p = argument_count or else Argument_array.item (p + 1).item (1) = Option_sign.item then
					Result := ""
				else
					Result := Argument_array.item (p + 1)
				end
			end
		end

	separate_word_option_value (opt: STRING_8): detachable STRING_8
			-- The value, if any, specified after word option `opt' on the
			-- command line.
			-- This is one of the following (where `X' is the current Option_sign):
			--   `val' if command line includes two consecutive arguments
			--	   of the form `Xopt' and `val' respectively.
			--   Empty string if command line includes argument `Xopt', which is
			--	   either last argument or followed by argument starting with `X'.
			--   Void if no `Xopt' argument.
			-- (from ARGUMENTS)
		require -- from ARGUMENTS
			opt_non_void: opt /= Void
			opt_meaningful: not opt.is_empty
		local
			p: INTEGER_32
		do
			p := index_of_word_option (opt)
			if p /= 0 then
				if p = argument_count or else Argument_array.item (p + 1).item (1) = Option_sign.item then
					Result := ""
				else
					Result := Argument_array.item (p + 1)
				end
			end
		end
	
feature -- Status setting

	set_option_sign (c: CHARACTER_8)
			-- Make `c' the option sign.
			-- Use'%U' if no sign is necessary for the argument to
			-- be an option
			-- (from ARGUMENTS)
		do
			Option_sign.set_item (c)
		end
	
feature -- Duplication

	frozen clone (other: detachable ANY): like other
		obsolete "Use `twin' instead."
			-- Void if `other' is void; otherwise new object
			-- equal to `other'
			--
			-- For non-void `other', clone calls copy;
			-- to change copying/cloning semantics, redefine copy.
			-- (from ANY)
		do
			if other /= Void then
				Result := other.twin
			end
		ensure -- from ANY
			equal: Result ~ other
		end

	copy (other: attached ROOT)
			-- Update current object using fields of object attached
			-- to `other', so as to yield equal objects.
			-- (from ANY)
		require -- from ANY
			other_not_void: other /= Void
			type_identity: same_type (other)
		external
			"built_in"
		ensure -- from ANY
			is_equal: Current ~ other
		end

	frozen deep_clone (other: detachable ANY): like other
		obsolete "Use `deep_twin' instead."
			-- Void if `other' is void: otherwise, new object structure
			-- recursively duplicated from the one attached to `other'
			-- (from ANY)
		do
			if other /= Void then
				Result := other.deep_twin
			end
		ensure -- from ANY
			deep_equal: deep_equal (other, Result)
		end

	frozen deep_copy (other: attached ROOT)
			-- Effect equivalent to that of:
			--		copy (`other' . deep_twin)
			-- (from ANY)
		require -- from ANY
			other_not_void: other /= Void
		do
			copy (other.deep_twin)
		ensure -- from ANY
			deep_equal: deep_equal (Current, other)
		end

	frozen deep_twin: attached ROOT
			-- New object structure recursively duplicated from Current.
			-- (from ANY)
		external
			"built_in"
		ensure -- from ANY
			deep_twin_not_void: Result /= Void
			deep_equal: deep_equal (Current, Result)
		end

	frozen standard_clone (other: detachable ANY): like other
		obsolete "Use `standard_twin' instead."
			-- Void if `other' is void; otherwise new object
			-- field-by-field identical to `other'.
			-- Always uses default copying semantics.
			-- (from ANY)
		do
			if other /= Void then
				Result := other.standard_twin
			end
		ensure -- from ANY
			equal: standard_equal (Result, other)
		end

	frozen standard_copy (other: attached ROOT)
			-- Copy every field of `other' onto corresponding field
			-- of current object.
			-- (from ANY)
		require -- from ANY
			other_not_void: other /= Void
			type_identity: same_type (other)
		external
			"built_in"
		ensure -- from ANY
			is_standard_equal: standard_is_equal (other)
		end

	frozen standard_twin: attached ROOT
			-- New object field-by-field identical to `other'.
			-- Always uses default copying semantics.
			-- (from ANY)
		external
			"built_in"
		ensure -- from ANY
			standard_twin_not_void: Result /= Void
			equal: standard_equal (Result, Current)
		end

	frozen twin: attached ROOT
			-- New object equal to `Current'
			-- twin calls copy; to change copying/twinning semantics, redefine copy.
			-- (from ANY)
		external
			"built_in"
		ensure -- from ANY
			twin_not_void: Result /= Void
			is_equal: Result ~ Current
		end
	
feature -- Basic operations

	frozen as_attached: attached ROOT
			-- Attached version of Current
			-- (Can be used during transitional period to convert
			-- non-void-safe classes to void-safe ones.)
			-- (from ANY)
		do
			Result := Current
		end

	frozen default: detachable ROOT
			-- Default value of object's type
			-- (from ANY)
		do
		end

	frozen default_pointer: POINTER
			-- Default value of type `POINTER'
			-- (Avoid the need to write `p'.default for
			-- some `p' of type `POINTER'.)
			-- (from ANY)
		do
		end

	default_rescue
			-- Process exception for routines with no Rescue clause.
			-- (Default: do nothing.)
			-- (from ANY)
		do
		end

	frozen do_nothing
			-- Execute a null action.
			-- (from ANY)
		do
		end
	
feature {NONE} -- Implementation

	internal_argument_array: ARRAY [STRING_8]
			-- Array containing command name (position 0) and arguments
			-- (from ARGUMENTS)
		local
			i: INTEGER_32
		do
			create Result.make_filled ("", 0, argument_count)
			Result.compare_objects
			from
			until
				i > argument_count
			loop
				Result.put (argument (i), i)
				i := i + 1
			end
		ensure -- from ARGUMENTS
			internal_argument_array_not_void: Result /= Void
			internal_argument_array_compare_objects: Result.object_comparison
		end

	Internal_arguments: ARGUMENTS_32
			-- Access to the Unicode arguments.
			-- (from ARGUMENTS)
		once
			create Result
		end

	option_character_equal (arg: STRING_8; c: CHARACTER_8): BOOLEAN
			-- Does `arg' contain the character option `c'?
			-- (from ARGUMENTS)
		require -- from ARGUMENTS
			arg_not_void: arg /= Void
		do
			if Option_sign.item = '%U' then
				Result := arg.has (c)
			elseif arg.item (1) = Option_sign.item then
				Result := arg.substring (2, arg.count).has (c)
			end
		end

	option_word_begins_with (arg, w: STRING_8): BOOLEAN
			-- Does `arg' begin with the word option `w'?
			-- (from ARGUMENTS)
		require -- from ARGUMENTS
			arg_not_void: arg /= Void
			w_not_void: w /= Void
		do
			if Option_sign.item = '%U' and then arg.count >= w.count then
				Result := arg.substring (1, w.count) ~ w
			elseif arg.item (1) = Option_sign.item and then arg.count > w.count then
				Result := arg.substring (2, w.count + 1) ~ w
			end
		end

	option_word_equal (arg, w: STRING_8): BOOLEAN
			-- Is `arg' equal to the word option `w'?
			-- (from ARGUMENTS)
		require -- from ARGUMENTS
			arg_not_void: arg /= Void
			w_not_void: w /= Void
		do
			if Option_sign.item = '%U' then
				Result := arg ~ w
			elseif not arg.is_empty and then arg.item (1) = Option_sign.item then
				Result := arg.substring (2, arg.count) ~ w
			end
		end
	
feature {ES_TEST} -- Implementation

	count: INTEGER_32
			-- number of tests in `Current'
			-- (from ES_SUITE)
		do
			check
					attached classes as classes1
			then
				Result := classes1.count
			end
		end

	failed_cases: LIST [STRING_8]
			-- list of the name of all the failed test cases
			-- (from ES_SUITE)
		do
			create {ARRAYED_LIST [STRING_8]} Result.make (10)
			if attached classes as classes1 then
				across
					classes1 as it
				loop
					Result.append (it.item.failed_cases)
				end
			end
		end

	make_test (v: BOOLEAN)
			-- Initialize Current
			-- (from ES_SUITE)
		do
			show_err := v
			name := "default_name"
		end

	pass_values (e: BOOLEAN; b: BOOLEAN; n: like name)
			-- (from ES_SUITE)
		do
			show_err := e
			browser := b
			name := n
		end

	passed_cases: LIST [STRING_8]
			-- list of the name of all the successful test cases
			-- (from ES_SUITE)
		do
			create {ARRAYED_LIST [STRING_8]} Result.make (10)
			if attached classes as classes1 then
				across
					classes1 as it
				loop
					Result.append (it.item.passed_cases)
				end
			end
		end

	run_es_test
			-- run es-test in suite mode
			-- (from ES_SUITE)
		do
			if attached classes as classes1 then
				number_of_tests := 0
				number_passed_tests := 0
				from
					classes1.start
				until
					classes1.after
				loop
					check
							attached classes1.item as item1
					then
						if show_err then
							item1.set_error_report (show_err)
						end
						item1.run_es_test
						number_of_tests := number_of_tests + item1.number_of_tests
						number_passed_tests := number_passed_tests + item1.number_passed_tests
						classes1.forth
					end
				end
				to_html (get_html_name)
				check_browser
			else
				print_to_screen ("Error: No test cases added%N")
			end
		end

	to_html (output_file_name: STRING_8)
			-- generate HTML report with details
			-- (from ES_SUITE)
		require -- from ES_SUITE
			output_file_name_valid: output_file_name /= Void
		local
			gen: ES_HTML_GEN_SUITE
		do
			check
					attached classes as cl
			then
				check
						attached name as n
				then
					create gen.make (n, output_file_name, cl, show_err)
				end
			end
		end
	
feature {ES_SUITE, ES_SUITE} 

	classes: detachable LINKED_LIST [ES_TEST]
			-- (from ES_SUITE)

	name: detachable STRING_8
			-- (from ES_SUITE)
	
feature 

	browser: BOOLEAN
			-- (from ES_TESTABLE)

	check_browser
			-- run the browser on the generated HTML
			-- (from ES_TESTABLE)
		local
			env: EXECUTION_ENVIRONMENT
			command: STRING_8
		do
			create env
			check
					attached get_html_name
			end
			if browser then
				if {PLATFORM}.is_windows then
					command := "%"explorer%" " + (get_html_name.twin) + "%""
					env.launch (command)
				elseif {PLATFORM}.is_mac then
					command := "open" + " '" + get_html_name.twin + "'"
					env.launch (command)
				else
					check
							{PLATFORM}.is_unix
					end
					command := "xdg-open" + " '" + get_html_name.twin + "'"
					env.launch (command)
				end
			end
		end

	curr_os_dir_separator: CHARACTER_8
			--  return path separator for current OS
			-- (from ES_TESTABLE)
		do
			Result := (create {OPERATING_ENVIRONMENT}).Directory_separator
		ensure -- from ES_TESTABLE
			separator_is_a_slash: Result = '/' or Result = '\'
		end

	default_html_name: detachable STRING_8
			-- (from ES_TESTABLE)

	get_html_name: STRING_8
			-- return the name of the default html for this unit test
			-- (from ES_TESTABLE)
		do
			if default_html_name /= Void then
				check
						attached default_html_name as d
				then
					Result := d.twin
				end
			else
				Result := (generating_type.name + ".html").as_string_8
			end
		end

	number_of_tests: INTEGER_32
			-- (from ES_TESTABLE)

	number_passed_tests: INTEGER_32
			-- (from ES_TESTABLE)

	print_console_report
			-- print a summary of all the test case results to the
			-- console.
			-- (from ES_TESTABLE)
		local
			failed: LIST [STRING_8]
			success: LIST [STRING_8]
			passed, total: INTEGER_32
			line: STRING_8
		do
			failed := failed_cases
			success := passed_cases
			passed := success.count
			total := success.count + failed.count
			create line.make_filled ('=', 60)
			Io.put_string (line)
			Io.put_new_line
			safe_put_string ("passing tests%N")
			across
				success as it
			loop
				safe_put_string ("> " + it.item + "%N")
			end
			safe_put_string ("failing tests%N")
			across
				failed as it
			loop
				safe_put_string ("> " + it.item + "%N")
			end
			safe_put_string (passed.out + "/" + total.out + " passed%N")
			if number_of_tests = number_passed_tests then
				safe_put_string ("passed%N")
			else
				safe_put_string ("failed%N")
			end
		end

	print_to_screen (message: STRING_8)
			-- prints the message to the screen, handles both GUI and standard output
			-- (from ES_TESTABLE)
		do
			safe_put_string (message)
		end

	run_espec
			-- new feature instead of run_all
			-- (from ES_TESTABLE)
		local
			problem: BOOLEAN
		do
			if not problem then
				run_es_test
				print_console_report
			end
		rescue
			problem := True
			print_to_screen ("Error: No test cases found, Please add ES_TEST classes to the class that inherits from ES_SUITE%N")
			retry
		end

	safe_put_string (message: STRING_8)
			-- socket.putstring with exception handling
			-- (from ES_TESTABLE)
		do
			print (message)
		end

	set_error_report (v: BOOLEAN)
			-- show the contract violations if set to true
			-- (from ES_TESTABLE)
		do
			show_err := v
		end

	set_html_name (s: STRING_8)
			-- set the output html name
			-- (from ES_TESTABLE)
		do
			default_html_name := s
		end

	show_browser
			--shows the default browser
			-- (from ES_TESTABLE)
		do
			browser := True
		end

	show_err: BOOLEAN
			-- (from ES_TESTABLE)

	show_errors
			-- print error traces to the output
			-- (from ES_TESTABLE)
		do
			show_err := True
		end
	
feature -- Access: Cursor

	new_cursor: ITERATION_CURSOR [STRING_8]
			-- Fresh cursor associated with current structure
			-- (from ARGUMENTS)
		do
			Result := Argument_array.new_cursor
		ensure -- from ITERABLE
			result_attached: Result /= Void
		end
	
feature -- Basic Operations

	add_suite (suite_test_class: ES_SUITE)
			-- Adds a suite of tests to the current suite
			-- (from ES_SUITE)
		require -- from ES_SUITE
			suite_test_class_exists: suite_test_class /= Void
		do
			if attached suite_test_class.classes as c then
				from
					c.start
				until
					c.after
				loop
					add_test (c.item)
					c.forth
				end
			end
		end

	add_test (unit_test_class: ES_TEST)
			-- Adds class level test `unit_test_class' to Current test suite
			-- use this feature to add your unit test classes to the suite
			-- (from ES_SUITE)
		require -- from ES_SUITE
			unit_tests_class_exists: unit_test_class /= Void
		do
			if classes = Void then
				create classes.make
				name := generating_type.name.twin.as_string_8
			end
			if attached classes as classes1 then
				classes1.extend (unit_test_class)
			end
		end
	
feature -- Output

	Io: STD_FILES
			-- Handle to standard file setup
			-- (from ANY)
		once
			create Result
			Result.set_output_default
		ensure -- from ANY
			io_not_void: Result /= Void
		end

	out: STRING_8
			-- New string containing terse printable representation
			-- of current object
			-- (from ANY)
		do
			Result := tagged_out
		ensure -- from ANY
			out_not_void: Result /= Void
		end

	print (o: detachable ANY)
			-- Write terse external representation of `o'
			-- on standard output.
			-- (from ANY)
		do
			if o /= Void then
				Io.put_string (o.out)
			end
		end

	frozen tagged_out: STRING_8
			-- New string containing terse printable representation
			-- of current object
			-- (from ANY)
		external
			"built_in"
		ensure -- from ANY
			tagged_out_not_void: Result /= Void
		end
	
feature -- Platform

	Operating_environment: OPERATING_ENVIRONMENT
			-- Objects available from the operating system
			-- (from ANY)
		once
			create Result
		ensure -- from ANY
			operating_environment_not_void: Result /= Void
		end
	
feature {NONE} -- Retrieval

	frozen internal_correct_mismatch
			-- Called from runtime to perform a proper dynamic dispatch on `correct_mismatch'
			-- from MISMATCH_CORRECTOR.
			-- (from ANY)
		local
			l_msg: STRING_8
			l_exc: EXCEPTIONS
		do
			if attached {MISMATCH_CORRECTOR} Current as l_corrector then
				l_corrector.correct_mismatch
			else
				create l_msg.make_from_string ("Mismatch: ")
				create l_exc
				l_msg.append (generating_type.name)
				l_exc.raise_retrieval_exception (l_msg)
			end
		end
	
invariant
		-- from ARGUMENTS
	argument_array_consistent: Argument_array ~ internal_argument_array

		-- from ANY
	reflexive_equality: standard_is_equal (Current)
	reflexive_conformance: conforms_to (Current)

end -- class ROOT


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