Design: 09.01.01.02/P04

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PROGRAM 4: Error 4 handled by system

CHARACTERISTICS: ynny

OPERATOR SCRIPT:
See OPERATOR SCRIPT for Program 1.

DESIGN:

Throughout this program, every time an error is signalled (as noted by
the tag "signals error"), the system-defined error handler should call
<error logging> at least once to write an error message on the error file.

Open workstation, open structure or open archive file after
initializing to test if function <close phigs> generates error 4;
ignoring function, function requires state (PHOP, WSCL, STCL,
ARCL).

*** *** ***  Generate errors; test absence of side effects  *** *** ***

<open workstation> with WKID, CONID, WTYPE
<close phigs> : signals error
TEST: #SR 4
      "If <close phigs> signals an error because PHIGS is open and a
       workstation is open, it should not cause any other effect."
pass/fail depending on (system state = PHIGS-open and
                        workstation state = open)
<close workstation>

<open structure>
<close phigs> : signals error
TEST: #SR 4
      "If <close phigs> signals an error because PHIGS is open and a
       structure is open, it should not cause any other effect."
pass/fail depending on (system state = PHIGS-open  and
                        workstation state = closed and
                        structure state = open)
<close structure>

<open archive file>
<close phigs> : signals error
TEST: #SR 4
      "If <close phigs> signals an error because PHIGS is open and
       an archive file is open, it should not cause any other
       effect."
pass/fail depending on (system state = PHIGS-open  and
                        workstation state = closed and
                        structure state = closed and
                        archive state = open)
<close archive file>

*** *** ***  Results of system-defined error handling  *** *** ***

TEST: #SR 4
      "If <close phigs> is called and PHIGS is open and a workstation
       is open, it should write an accurate, self-identifying error
       message on the error file."
pass/fail depending on (operator verifies error message)

TEST: #SR 4
      "If <close phigs> is called and PHIGS is open and a structure
       is open, it should write an accurate, self-identifying error
       message on the error file."
pass/fail depending on (operator verifies error message)

TEST: #SR 4
      "If <close phigs> is called and PHIGS is open and an archive file
       is open, it should write an accurate, self-identifying error
       message on the error file."
pass/fail depending on (operator verifies error message)

END PROGRAM 4