Mock a CALL statement and provide fake results

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Example 1

       TESTSUITE 'Grade 91-100 = A, 81-90 = B, 71-80 = C, 65-70 = D, below 65 = F' 

       TESTCASE 'Grade 91 is A' 
           MOCK CALL 'CALCGRADES'
               MOVE 91 TO CALC-AVG-GRADE
           END-MOCK
           PERFORM ASSIGN-LETTER-GRADE
           EXPECT WS-LETTER-GRADE TO BE 'A'

Example 2

       TESTCASE "Call mock is performed"
           MOCK CALL 'PROG3' USING
             BY CONTENT VALUE-1,
             BY VALUE VALUE-2,
             VALUE-3
                MOVE "content" TO VALUE-1
                MOVE "value" TO VALUE-2
                MOVE "reference" TO VALUE-3
           END-MOCK
           PERFORM 800-MAKE-CALL
           EXPECT VALUE-1 TO BE "content"
           EXPECT VALUE-2 TO BE "value"
           EXPECT VALUE-3 TO BE "reference"

Example 3

END-CALL is ignored by the parser, and is thus allowed in the mock.

       TESTCASE "END-CALL is allowed"
           MOCK CALL VALUE-2 USING VALUE-1
           END-CALL.
                MOVE "Local PROG1" TO VALUE-1
           END-MOCK
           PERFORM 600-MAKE-CALL
           EXPECT VALUE-1 TO BE "Local PROG1"