note description: "[ Testing suite for the DECIMAL Class covering the is_equal, is_less, divisible, is_integer, is_natural, is_natural1, and is_negative queries. ]" author: "JSO & CD" date: "June 10 2019" revision: "1.00" class interface DECIMAL_PREDICATE_TEST create make feature -- Access generating_type: TYPE [detachable DECIMAL_PREDICATE_TEST] -- Type of current object -- (type of which it is a direct instance) -- (from ANY) ensure -- from ANY generating_type_not_void: Result /= Void generator: STRING_8 -- Name of current object's generating class -- (base class of the type of which it is a direct instance) -- (from ANY) ensure -- from ANY generator_not_void: Result /= Void generator_not_empty: not Result.is_empty 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) ensure -- from ANY instance_free: class 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) 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) ensure -- from ANY instance_free: class definition: Result = (a = Void and b = Void) or else ((a /= Void and b /= Void) and then a.is_equal (b)) frozen is_deep_equal (other: DECIMAL_PREDICATE_TEST): BOOLEAN -- Are Current and other attached to isomorphic object structures? -- (from ANY) require -- from ANY other_not_void: other /= Void 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) is_equal (other: DECIMAL_PREDICATE_TEST): BOOLEAN -- Is other attached to an object considered -- equal to current object? -- (from ANY) require -- from ANY other_not_void: other /= Void ensure -- from ANY symmetric: Result implies other ~ Current consistent: standard_is_equal (other) implies Result 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) ensure -- from ANY instance_free: class definition: Result = (a = Void and b = Void) or else ((a /= Void and b /= Void) and then a.standard_is_equal (b)) frozen standard_is_equal (other: DECIMAL_PREDICATE_TEST): 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 ensure -- from ANY same_type: Result implies same_type (other) symmetric: Result implies other.standard_is_equal (Current) feature -- Status report 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 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 ensure -- from ANY definition: Result = (conforms_to (other) and other.conforms_to (Current)) feature -- Duplication copy (other: DECIMAL_PREDICATE_TEST) -- 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) ensure -- from ANY is_equal: Current ~ other frozen deep_copy (other: DECIMAL_PREDICATE_TEST) -- Effect equivalent to that of: -- copy (other . deep_twin) -- (from ANY) require -- from ANY other_not_void: other /= Void ensure -- from ANY deep_equal: deep_equal (Current, other) frozen deep_twin: DECIMAL_PREDICATE_TEST -- New object structure recursively duplicated from Current. -- (from ANY) ensure -- from ANY deep_twin_not_void: Result /= Void deep_equal: deep_equal (Current, Result) frozen standard_copy (other: DECIMAL_PREDICATE_TEST) -- 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) ensure -- from ANY is_standard_equal: standard_is_equal (other) frozen standard_twin: DECIMAL_PREDICATE_TEST -- New object field-by-field identical to other. -- Always uses default copying semantics. -- (from ANY) ensure -- from ANY standard_twin_not_void: Result /= Void equal: standard_equal (Result, Current) frozen twin: DECIMAL_PREDICATE_TEST -- New object equal to Current -- twin calls copy; to change copying/twinning semantics, redefine copy. -- (from ANY) ensure -- from ANY twin_not_void: Result /= Void is_equal: Result ~ Current feature -- Basic operations add_boolean_case (v: PREDICATE) -- Add boolean function v. -- (from ES_TEST) require -- from ES_TEST v_valid: v /= Void add_violation_case (v: PROCEDURE) -- Add boolean function v. -- (from ES_TEST) require -- from ES_TEST v_valid: v /= Void add_violation_case_with_tag (expected_tag: STRING_8; v: PROCEDURE) -- Add boolean function v. -- (from ES_TEST) require -- from ES_TEST v_valid: v /= Void frozen default: detachable DECIMAL_PREDICATE_TEST -- Default value of object's type -- (from ANY) frozen default_pointer: POINTER -- Default value of type POINTER -- (Avoid the need to write p.default for -- some p of type POINTER.) -- (from ANY) ensure -- from ANY instance_free: class default_rescue -- Process exception for routines with no Rescue clause. -- (Default: do nothing.) -- (from ANY) frozen do_nothing -- Execute a null action. -- (from ANY) ensure -- from ANY instance_free: class feature browser: BOOLEAN -- (from ES_TESTABLE) check_browser -- Run the browser on the generated HTML. -- (from ES_TESTABLE) curr_os_dir_separator: CHARACTER_8 -- Return path separator for current OS. -- (from ES_TESTABLE) ensure -- from ES_TESTABLE separator_is_a_slash: Result = '/' or Result = '\' 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) 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) print_to_screen (message: STRING_8) -- Prints the message to the screen, handles both GUI and standard output. -- (from ES_TESTABLE) run_espec -- New feature instead of run_all. -- (from ES_TESTABLE) safe_put_string (message: STRING_8) -- Socket.putstring with exception handling. -- (from ES_TESTABLE) set_error_report (v: BOOLEAN) -- Show the contract violations if set to true. -- (from ES_TESTABLE) set_html_name (s: STRING_8) -- Set the output html name. -- (from ES_TESTABLE) show_browser -- Show the default browser. -- (from ES_TESTABLE) show_err: BOOLEAN -- (from ES_TESTABLE) show_errors -- Print error traces to the output. -- (from ES_TESTABLE) feature -- Output Io: STD_FILES -- Handle to standard file setup -- (from ANY) ensure -- from ANY instance_free: class io_not_void: Result /= Void out: STRING_8 -- New string containing terse printable representation -- of current object -- (from ANY) ensure -- from ANY out_not_void: Result /= Void print (o: detachable ANY) -- Write terse external representation of o -- on standard output. -- (from ANY) ensure -- from ANY instance_free: class frozen tagged_out: STRING_8 -- New string containing terse printable representation -- of current object -- (from ANY) ensure -- from ANY tagged_out_not_void: Result /= Void feature -- Platform Operating_environment: OPERATING_ENVIRONMENT -- Objects available from the operating system -- (from ANY) ensure -- from ANY instance_free: class operating_environment_not_void: Result /= Void feature -- Tests t1: BOOLEAN -- is_equal t2: BOOLEAN -- is_less t3: BOOLEAN -- is_less cont. t4: BOOLEAN -- divisible t5: BOOLEAN -- is_integer t6: BOOLEAN -- is_natural t7: BOOLEAN -- is_natural1 t8: BOOLEAN -- is_negative invariant -- from ANY reflexive_equality: standard_is_equal (Current) reflexive_conformance: conforms_to (Current) end -- class DECIMAL_PREDICATE_TEST
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