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IDENTIFICATION DIVISION.
PROGRAM-ID. CEPIS-TESTS.

*> ---------------------------------------------------------------------
*> The suite. Run it through tests/server.py, which binds a loopback
*> port, exports CEPIS_TEST_URL and runs this program:
*>
*>     python3 tests/server.py ./build/cepis-tests
*>
*> Every test goes through the real transport against that server, so
*> what is exercised is the code that runs in production -- request
*> construction, header handling and error-body reading included. It
*> doubles as the test that CFG-BASE-URL works: without it none of this
*> would reach anything.
*>
*> The process exits non-zero if any check fails.
*> ---------------------------------------------------------------------

DATA DIVISION.
WORKING-STORAGE SECTION.
COPY "cepis.cpy".
COPY "cepis-http.cpy".

01  WS-BASE                         PIC X(200).
01  WS-CHECKS                       PIC 9(4) VALUE 0.
01  WS-FAILURES                     PIC 9(4) VALUE 0.
01  WS-LABEL                        PIC X(56).
01  WS-DETAIL                       PIC X(200).
01  WS-OK                           PIC X.
01  WS-TALLY                        PIC 9(4).
01  WS-I                            PIC 9(4).
01  WS-COUNT                        PIC 9(9).
01  WS-COUNT-BEFORE                 PIC 9(9).
01  WS-COUNT-PATH                   PIC X(40).
01  WS-NUM8                         PIC 9(8).
01  WS-T0                           PIC S9(18) COMP-5.
01  WS-T1                           PIC S9(18) COMP-5.
01  WS-ELAPSED                      PIC S9(18).
01  WS-SAVED-ATTEMPTS               PIC 9(4).
01  WS-SAVED-RETRY                  PIC S9(9).

01  WS-GOOD-TABLE.
    05  FILLER PIC X(20) VALUE "01001000".
    05  FILLER PIC X(20) VALUE "01001-000".
    05  FILLER PIC X(20) VALUE " 01001-000 ".
    05  FILLER PIC X(20) VALUE "01001.000".
01  WS-GOODS REDEFINES WS-GOOD-TABLE.
    05  WS-GOOD OCCURS 4 TIMES      PIC X(20).

01  WS-BAD-TABLE.
    05  FILLER PIC X(20) VALUE SPACES.
    05  FILLER PIC X(20) VALUE "123".
    05  FILLER PIC X(20) VALUE "0100100a".
    05  FILLER PIC X(20) VALUE "010010000".
    05  FILLER PIC X(20) VALUE "abcdefgh".
01  WS-BADS REDEFINES WS-BAD-TABLE.
    05  WS-BAD OCCURS 5 TIMES       PIC X(20).

PROCEDURE DIVISION.

MAIN-START.
    MOVE SPACES TO WS-BASE
    ACCEPT WS-BASE FROM ENVIRONMENT "CEPIS_TEST_URL"
    IF WS-BASE = SPACES
        DISPLAY "CEPIS_TEST_URL is not set -- run through "
                "tests/server.py"
        MOVE 2 TO RETURN-CODE
        STOP RUN
    END-IF
    DISPLAY "cepis 0.2.0 test suite against " FUNCTION TRIM (WS-BASE)
    DISPLAY " "

    PERFORM T-NORMALIZE-ACCEPTS
    PERFORM T-NORMALIZE-REJECTS
    PERFORM T-LOOKUP-SUCCESS
    PERFORM T-GEO-PRECISE
    PERFORM T-GEO-CITY-WIDE
    PERFORM T-GEO-MALFORMED
    PERFORM T-UNKNOWN-FIELDS
    PERFORM T-LONG-VALUE-FLAGGED
    PERFORM T-NOT-FOUND
    PERFORM T-NOT-FOUND-FAIXA
    PERFORM T-NOT-FOUND-FAIXA-OMITTED
    PERFORM T-NOT-FOUND-FAIXA-MALFORMED
    PERFORM T-NOT-FOUND-FAIXA-NOT-OBJECT
    PERFORM T-FAIXA-CLEARED-ON-SUCCESS
    PERFORM T-NOT-FOUND-NOT-RETRIED
    PERFORM T-INVALID-NEVER-LEAVES
    PERFORM T-API-400
    PERFORM T-NOT-JSON
    PERFORM T-RETRY-THEN-SUCCESS
    PERFORM T-RETRY-EXHAUSTED
    PERFORM T-ONE-ATTEMPT-NO-RETRY
    PERFORM T-RATE-LIMITED
    PERFORM T-RETRY-AFTER-CAPPED
    PERFORM T-RETRY-AFTER-HTTP-DATE
    PERFORM T-NETWORK-ERROR
    PERFORM T-TOTAL-TIMEOUT
    PERFORM T-BATCH-ORDER
    PERFORM T-BATCH-QUOTING
    PERFORM T-BATCH-MALFORMED-ENTRY
    PERFORM T-BATCH-EMPTY
    PERFORM T-BATCH-TRUNCATED
    PERFORM T-BATCH-CHUNKING
    PERFORM T-BATCH-OVER-CAPACITY
    PERFORM T-HEALTH
    PERFORM T-HEALTH-DEGRADED
    PERFORM T-TRAILING-SLASH
    PERFORM T-DEFAULT-USER-AGENT

    DISPLAY " "
    DISPLAY WS-CHECKS " checks, " WS-FAILURES " failed"
    IF WS-FAILURES > 0
        MOVE 1 TO RETURN-CODE
    ELSE
        MOVE 0 TO RETURN-CODE
    END-IF
    STOP RUN.

*> ===================================================================
*> Fixtures
*> ===================================================================
FRESH-CONFIG.
    CALL "CEPIS-DEFAULT-CONFIG" USING CEPIS-CONFIG
    MOVE WS-BASE TO CFG-BASE-URL
    MOVE 5000 TO CFG-TIMEOUT-MS
    MOVE 3 TO CFG-MAX-ATTEMPTS
    MOVE 1 TO CFG-BACKOFF-BASE-MS
    MOVE 10 TO CFG-BACKOFF-MAX-MS
    MOVE 0 TO CFG-TOTAL-TIMEOUT-MS.

CHECK.
    ADD 1 TO WS-CHECKS
    IF WS-OK = "Y"
        DISPLAY "ok    " WS-LABEL
    ELSE
        ADD 1 TO WS-FAILURES
        DISPLAY "FAIL  " WS-LABEL " -- " FUNCTION TRIM (WS-DETAIL)
    END-IF
    MOVE SPACES TO WS-DETAIL
    MOVE "N" TO WS-OK.

*> The fake server counts requests per path; that is how a 404 not being
*> retried, or 501 CEPs becoming two requests, is proved rather than
*> assumed.
COUNT-FOR.
    PERFORM FRESH-CONFIG
    MOVE 1 TO CFG-MAX-ATTEMPTS
    MOVE SPACES TO HTTPQ-PATH
    STRING "/count?path=" FUNCTION TRIM (WS-COUNT-PATH)
        DELIMITED BY SIZE INTO HTTPQ-PATH
    END-STRING
    COMPUTE HTTPQ-PATH-LEN =
        12 + FUNCTION LENGTH (FUNCTION TRIM (WS-COUNT-PATH))
    MOVE "N" TO HTTPQ-ALLOW-503
    MOVE 0 TO WS-COUNT
    CALL "CEPIS-REQUEST" USING CEPIS-CONFIG CEPIS-HTTP-REQUEST
                               CEPIS-HTTP-RESPONSE CEPIS-STATUS
    END-CALL
    IF CEPIS-OK AND HTTP-BODY-LEN > 0
        COMPUTE WS-COUNT =
            FUNCTION NUMVAL (HTTP-BODY (1:HTTP-BODY-LEN))
    END-IF.

*> ===================================================================
*> Local validation
*> ===================================================================
T-NORMALIZE-ACCEPTS.
    PERFORM VARYING WS-I FROM 1 BY 1 UNTIL WS-I > 4
        MOVE WS-GOOD (WS-I) TO CEPIS-CEP-INPUT
        CALL "CEPIS-NORMALIZE-CEP"
            USING CEPIS-CEP-INPUT CEPIS-CEP CEPIS-STATUS
        END-CALL
        MOVE "N" TO WS-OK
        IF CEPIS-OK AND CEPIS-CEP = "01001000"
            MOVE "Y" TO WS-OK
        END-IF
        MOVE SPACES TO WS-LABEL
        STRING "normalize accepts " WS-GOOD (WS-I)
            DELIMITED BY SIZE INTO WS-LABEL
        END-STRING
        MOVE CEPIS-CEP TO WS-DETAIL
        PERFORM CHECK
    END-PERFORM.

T-NORMALIZE-REJECTS.
    PERFORM VARYING WS-I FROM 1 BY 1 UNTIL WS-I > 5
        MOVE WS-BAD (WS-I) TO CEPIS-CEP-INPUT
        CALL "CEPIS-NORMALIZE-CEP"
            USING CEPIS-CEP-INPUT CEPIS-CEP CEPIS-STATUS
        END-CALL
        MOVE "N" TO WS-OK
        IF CEPIS-INVALID-CEP AND CEPIS-CEP = SPACES
            MOVE "Y" TO WS-OK
        END-IF
        MOVE SPACES TO WS-LABEL
        STRING "normalize rejects '" WS-BAD (WS-I) "'"
            DELIMITED BY SIZE INTO WS-LABEL
        END-STRING
        MOVE CEPIS-STATUS-MESSAGE TO WS-DETAIL
        PERFORM CHECK
    END-PERFORM.

*> ===================================================================
*> Single lookup
*> ===================================================================
T-LOOKUP-SUCCESS.
    PERFORM FRESH-CONFIG
    MOVE "01001-000" TO CEPIS-CEP-INPUT
    CALL "CEPIS-LOOKUP" USING CEPIS-CONFIG CEPIS-CEP-INPUT
                              CEPIS-ADDRESS CEPIS-STATUS
    END-CALL
    MOVE "N" TO WS-OK
    IF CEPIS-OK
       AND ADDR-LOCALIDADE = "São Paulo"
       AND ADDR-UF = "SP"
       AND ADDR-LOGRADOURO = "Praça da Sé"
       AND ADDR-IBGE = "3550308"
       AND ADDR-CEP-MASKED = "01001-000"
       AND ADDR-GEO-ABSENT
       AND ADDR-NOT-TRUNCATED
        MOVE "Y" TO WS-OK
    END-IF
    MOVE "lookup returns the address, masked cep, no geo" TO WS-LABEL
    MOVE CEPIS-STATUS-MESSAGE TO WS-DETAIL
    PERFORM CHECK.

T-GEO-PRECISE.
    PERFORM FRESH-CONFIG
    MOVE "01310100" TO CEPIS-CEP-INPUT
    CALL "CEPIS-LOOKUP" USING CEPIS-CONFIG CEPIS-CEP-INPUT
                              CEPIS-ADDRESS CEPIS-STATUS
    END-CALL
    MOVE "N" TO WS-OK
    IF CEPIS-OK AND ADDR-GEO-KNOWN AND ADDR-GEO-PRECISE
       AND ADDR-GEO-RAIO-M = 120
       AND ADDR-GEO-LAT < -23.5 AND ADDR-GEO-LAT > -23.6
       AND ADDR-GEO-LON < -46.6 AND ADDR-GEO-LON > -46.7
        MOVE "Y" TO WS-OK
    END-IF
    MOVE "geo present is read and reports precisao logradouro"
      TO WS-LABEL
    PERFORM CHECK.

T-GEO-CITY-WIDE.
    PERFORM FRESH-CONFIG
    MOVE "01001001" TO CEPIS-CEP-INPUT
    CALL "CEPIS-LOOKUP" USING CEPIS-CONFIG CEPIS-CEP-INPUT
                              CEPIS-ADDRESS CEPIS-STATUS
    END-CALL
    MOVE "N" TO WS-OK
    IF CEPIS-OK AND ADDR-GEO-KNOWN AND ADDR-GEO-CITY-WIDE
       AND NOT ADDR-GEO-PRECISE AND ADDR-GEO-RAIO-M = 22000
        MOVE "Y" TO WS-OK
    END-IF
    MOVE "a municipality centroid is not precise" TO WS-LABEL
    PERFORM CHECK.

T-GEO-MALFORMED.
    PERFORM FRESH-CONFIG
    MOVE "01001002" TO CEPIS-CEP-INPUT
    CALL "CEPIS-LOOKUP" USING CEPIS-CONFIG CEPIS-CEP-INPUT
                              CEPIS-ADDRESS CEPIS-STATUS
    END-CALL
    MOVE "N" TO WS-OK
    IF CEPIS-OK AND ADDR-GEO-ABSENT
       AND ADDR-LOCALIDADE = "São Paulo"
        MOVE "Y" TO WS-OK
    END-IF
    MOVE "a malformed geo does not lose the address" TO WS-LABEL
    PERFORM CHECK.

T-UNKNOWN-FIELDS.
    PERFORM FRESH-CONFIG
    MOVE "01001003" TO CEPIS-CEP-INPUT
    CALL "CEPIS-LOOKUP" USING CEPIS-CONFIG CEPIS-CEP-INPUT
                              CEPIS-ADDRESS CEPIS-STATUS
    END-CALL
    MOVE "N" TO WS-OK
    IF CEPIS-OK AND ADDR-LOCALIDADE = "São Paulo"
       AND ADDR-GEO-ABSENT
        MOVE "Y" TO WS-OK
    END-IF
    MOVE "fields the client does not know are ignored" TO WS-LABEL
    MOVE CEPIS-STATUS-MESSAGE TO WS-DETAIL
    PERFORM CHECK.

T-LONG-VALUE-FLAGGED.
    PERFORM FRESH-CONFIG
    MOVE "01001010" TO CEPIS-CEP-INPUT
    CALL "CEPIS-LOOKUP" USING CEPIS-CONFIG CEPIS-CEP-INPUT
                              CEPIS-ADDRESS CEPIS-STATUS
    END-CALL
    MOVE "N" TO WS-OK
    IF CEPIS-OK AND ADDR-WAS-TRUNCATED
        MOVE "Y" TO WS-OK
    END-IF
    MOVE "a value past the field width sets ADDR-TRUNCATED"
      TO WS-LABEL
    PERFORM CHECK.

T-NOT-FOUND.
    PERFORM FRESH-CONFIG
    MOVE "99999999" TO CEPIS-CEP-INPUT
    CALL "CEPIS-LOOKUP" USING CEPIS-CONFIG CEPIS-CEP-INPUT
                              CEPIS-ADDRESS CEPIS-STATUS
    END-CALL
    MOVE "N" TO WS-OK
    IF CEPIS-NOT-FOUND AND ADDR-LOCALIDADE = SPACES
        MOVE "Y" TO WS-OK
    END-IF
    MOVE "a missing CEP is CEPIS-NOT-FOUND" TO WS-LABEL
    MOVE CEPIS-STATUS-MESSAGE TO WS-DETAIL
    PERFORM CHECK.

*> 25845000 is the DNE's own published start for Areal/RJ and does not
*> exist -- the classic guess. The faixa says which municipality the
*> guess landed in; cep_ini is 25845001, one past what was asked for.
T-NOT-FOUND-FAIXA.
    PERFORM FRESH-CONFIG
    MOVE "25845-000" TO CEPIS-CEP-INPUT
    CALL "CEPIS-LOOKUP" USING CEPIS-CONFIG CEPIS-CEP-INPUT
                              CEPIS-ADDRESS CEPIS-STATUS
    END-CALL
    MOVE "N" TO WS-OK
    IF CEPIS-NOT-FOUND AND CEPIS-FAIXA-KNOWN
       AND CEPIS-FAIXA-LOCALIDADE = "Areal"
       AND CEPIS-FAIXA-UF = "RJ"
       AND CEPIS-FAIXA-ESTADO = "Rio de Janeiro"
       AND CEPIS-FAIXA-REGIAO = "Sudeste"
       AND CEPIS-FAIXA-IBGE = "3300225"
       AND CEPIS-FAIXA-CEP-INI = "25845001"
       AND CEPIS-FAIXA-CEP-FIM = "25849899"
       AND CEPIS-FAIXA-CEPS = 118
       AND ADDR-LOCALIDADE = SPACES AND ADDR-CEP = SPACES
        MOVE "Y" TO WS-OK
    END-IF
    MOVE "a 404 names the municipality, and stays a 404" TO WS-LABEL
    MOVE CEPIS-FAIXA-LOCALIDADE TO WS-DETAIL
    PERFORM CHECK.

*> 25849900 is one past Areal's last CEP, in a band no municipality
*> owns, so the API sends no faixa -- it never sends null. Runs after
*> the test above on purpose: the faixa that one left behind must not
*> survive into this lookup.
T-NOT-FOUND-FAIXA-OMITTED.
    PERFORM FRESH-CONFIG
    MOVE "25849900" TO CEPIS-CEP-INPUT
    CALL "CEPIS-LOOKUP" USING CEPIS-CONFIG CEPIS-CEP-INPUT
                              CEPIS-ADDRESS CEPIS-STATUS
    END-CALL
    MOVE "N" TO WS-OK
    IF CEPIS-NOT-FOUND AND CEPIS-FAIXA-ABSENT
       AND CEPIS-FAIXA-LOCALIDADE = SPACES
       AND CEPIS-FAIXA-CEPS = 0
        MOVE "Y" TO WS-OK
    END-IF
    MOVE "a band no municipality owns has no faixa at all" TO WS-LABEL
    MOVE CEPIS-FAIXA-LOCALIDADE TO WS-DETAIL
    PERFORM CHECK.

T-NOT-FOUND-FAIXA-MALFORMED.
    PERFORM FRESH-CONFIG
    MOVE "25845002" TO CEPIS-CEP-INPUT
    CALL "CEPIS-LOOKUP" USING CEPIS-CONFIG CEPIS-CEP-INPUT
                              CEPIS-ADDRESS CEPIS-STATUS
    END-CALL
    MOVE 0 TO WS-TALLY
    INSPECT CEPIS-STATUS-MESSAGE
        TALLYING WS-TALLY FOR ALL "does not exist in the DNE database"
    MOVE "N" TO WS-OK
    IF CEPIS-NOT-FOUND AND CEPIS-FAIXA-ABSENT AND WS-TALLY = 1
       AND CEPIS-FAIXA-LOCALIDADE = SPACES
        MOVE "Y" TO WS-OK
    END-IF
    MOVE "a malformed faixa is dropped, the 404 is clean" TO WS-LABEL
    MOVE CEPIS-STATUS-MESSAGE TO WS-DETAIL
    PERFORM CHECK.

T-NOT-FOUND-FAIXA-NOT-OBJECT.
    PERFORM FRESH-CONFIG
    MOVE "25845003" TO CEPIS-CEP-INPUT
    CALL "CEPIS-LOOKUP" USING CEPIS-CONFIG CEPIS-CEP-INPUT
                              CEPIS-ADDRESS CEPIS-STATUS
    END-CALL
    MOVE "N" TO WS-OK
    IF CEPIS-NOT-FOUND AND CEPIS-FAIXA-ABSENT
        MOVE "Y" TO WS-OK
    END-IF
    MOVE "a faixa that is not an object is dropped" TO WS-LABEL
    MOVE CEPIS-STATUS-MESSAGE TO WS-DETAIL
    PERFORM CHECK.

T-FAIXA-CLEARED-ON-SUCCESS.
    PERFORM FRESH-CONFIG
    MOVE "25845000" TO CEPIS-CEP-INPUT
    CALL "CEPIS-LOOKUP" USING CEPIS-CONFIG CEPIS-CEP-INPUT
                              CEPIS-ADDRESS CEPIS-STATUS
    END-CALL
    MOVE "N" TO WS-OK
    IF CEPIS-FAIXA-KNOWN
        MOVE "01001-000" TO CEPIS-CEP-INPUT
        CALL "CEPIS-LOOKUP" USING CEPIS-CONFIG CEPIS-CEP-INPUT
                                  CEPIS-ADDRESS CEPIS-STATUS
        END-CALL
        IF CEPIS-OK AND CEPIS-FAIXA-ABSENT
           AND ADDR-LOCALIDADE = "São Paulo"
            MOVE "Y" TO WS-OK
        END-IF
    END-IF
    MOVE "a later success clears the faixa of an earlier 404"
      TO WS-LABEL
    MOVE CEPIS-FAIXA-LOCALIDADE TO WS-DETAIL
    PERFORM CHECK.

T-NOT-FOUND-NOT-RETRIED.
    MOVE "/99999999" TO WS-COUNT-PATH
    PERFORM COUNT-FOR
    MOVE "N" TO WS-OK
    IF WS-COUNT = 1
        MOVE "Y" TO WS-OK
    END-IF
    MOVE "404 is definitive and is not retried" TO WS-LABEL
    MOVE SPACES TO WS-DETAIL
    STRING "requests: " WS-COUNT
        DELIMITED BY SIZE INTO WS-DETAIL
    END-STRING
    PERFORM CHECK.

T-INVALID-NEVER-LEAVES.
    PERFORM FRESH-CONFIG
    MOVE "123" TO CEPIS-CEP-INPUT
    CALL "CEPIS-LOOKUP" USING CEPIS-CONFIG CEPIS-CEP-INPUT
                              CEPIS-ADDRESS CEPIS-STATUS
    END-CALL
    MOVE "N" TO WS-OK
    IF CEPIS-INVALID-CEP
        MOVE "Y" TO WS-OK
    END-IF
    MOVE "/123" TO WS-COUNT-PATH
    PERFORM COUNT-FOR
    IF WS-COUNT NOT = 0
        MOVE "N" TO WS-OK
    END-IF
    MOVE "a malformed CEP never leaves the machine" TO WS-LABEL
    PERFORM CHECK.

T-API-400.
    PERFORM FRESH-CONFIG
    MOVE "00000000" TO CEPIS-CEP-INPUT
    CALL "CEPIS-LOOKUP" USING CEPIS-CONFIG CEPIS-CEP-INPUT
                              CEPIS-ADDRESS CEPIS-STATUS
    END-CALL
    MOVE 0 TO WS-TALLY
    INSPECT CEPIS-STATUS-MESSAGE
        TALLYING WS-TALLY FOR ALL "rejected by the API"
    MOVE "N" TO WS-OK
    IF CEPIS-INVALID-CEP AND WS-TALLY = 1
        MOVE "Y" TO WS-OK
    END-IF
    MOVE "an API 400 carries the API's own message" TO WS-LABEL
    MOVE CEPIS-STATUS-MESSAGE TO WS-DETAIL
    PERFORM CHECK.

T-NOT-JSON.
    PERFORM FRESH-CONFIG
    MOVE "01001004" TO CEPIS-CEP-INPUT
    CALL "CEPIS-LOOKUP" USING CEPIS-CONFIG CEPIS-CEP-INPUT
                              CEPIS-ADDRESS CEPIS-STATUS
    END-CALL
    MOVE "N" TO WS-OK
    IF CEPIS-INVALID-RESPONSE
        MOVE "Y" TO WS-OK
    END-IF
    MOVE "a body that is not JSON is CEPIS-INVALID-RESPONSE"
      TO WS-LABEL
    MOVE CEPIS-STATUS-MESSAGE TO WS-DETAIL
    PERFORM CHECK.

*> ===================================================================
*> Retrying
*> ===================================================================
T-RETRY-THEN-SUCCESS.
    PERFORM FRESH-CONFIG
    MOVE "01001005" TO CEPIS-CEP-INPUT
    CALL "CEPIS-LOOKUP" USING CEPIS-CONFIG CEPIS-CEP-INPUT
                              CEPIS-ADDRESS CEPIS-STATUS
    END-CALL
    MOVE "N" TO WS-OK
    IF CEPIS-OK AND ADDR-LOCALIDADE = "São Paulo"
        MOVE "Y" TO WS-OK
    END-IF
    MOVE "/01001005" TO WS-COUNT-PATH
    PERFORM COUNT-FOR
    IF WS-COUNT NOT = 2
        MOVE "N" TO WS-OK
    END-IF
    MOVE "500 is retried and the second attempt succeeds" TO WS-LABEL
    MOVE SPACES TO WS-DETAIL
    STRING "requests: " WS-COUNT
        DELIMITED BY SIZE INTO WS-DETAIL
    END-STRING
    PERFORM CHECK.

T-RETRY-EXHAUSTED.
    PERFORM FRESH-CONFIG
    MOVE "01001006" TO CEPIS-CEP-INPUT
    CALL "CEPIS-LOOKUP" USING CEPIS-CONFIG CEPIS-CEP-INPUT
                              CEPIS-ADDRESS CEPIS-STATUS
    END-CALL
    MOVE "N" TO WS-OK
    IF CEPIS-SERVER-ERROR AND CEPIS-STATUS-HTTP = 503
       AND CEPIS-STATUS-ATTEMPTS = 3
        MOVE "Y" TO WS-OK
    END-IF
    MOVE "/01001006" TO WS-COUNT-PATH
    PERFORM COUNT-FOR
    IF WS-COUNT NOT = 3
        MOVE "N" TO WS-OK
    END-IF
    MOVE "three attempts, then CEPIS-SERVER-ERROR" TO WS-LABEL
    MOVE SPACES TO WS-DETAIL
    STRING "requests: " WS-COUNT
        DELIMITED BY SIZE INTO WS-DETAIL
    END-STRING
    PERFORM CHECK.

T-ONE-ATTEMPT-NO-RETRY.
    PERFORM FRESH-CONFIG
    MOVE 1 TO CFG-MAX-ATTEMPTS
    MOVE "01001012" TO CEPIS-CEP-INPUT
    CALL "CEPIS-LOOKUP" USING CEPIS-CONFIG CEPIS-CEP-INPUT
                              CEPIS-ADDRESS CEPIS-STATUS
    END-CALL
    MOVE "N" TO WS-OK
    IF CEPIS-SERVER-ERROR
        MOVE "Y" TO WS-OK
    END-IF
    MOVE "/01001012" TO WS-COUNT-PATH
    PERFORM COUNT-FOR
    IF WS-COUNT NOT = 1
        MOVE "N" TO WS-OK
    END-IF
    MOVE "CFG-MAX-ATTEMPTS of 1 disables retrying" TO WS-LABEL
    PERFORM CHECK.

T-RATE-LIMITED.
    PERFORM FRESH-CONFIG
    MOVE "01001007" TO CEPIS-CEP-INPUT
    CALL "CEPIS-LOOKUP" USING CEPIS-CONFIG CEPIS-CEP-INPUT
                              CEPIS-ADDRESS CEPIS-STATUS
    END-CALL
    MOVE "N" TO WS-OK
    IF CEPIS-RATE-LIMITED AND CEPIS-STATUS-RETRY-AFTER-MS = 7000
        MOVE "Y" TO WS-OK
    END-IF
    MOVE "429 exposes Retry-After in seconds" TO WS-LABEL
    MOVE SPACES TO WS-DETAIL
    STRING "retry-after ms: " CEPIS-STATUS-RETRY-AFTER-MS
        DELIMITED BY SIZE INTO WS-DETAIL
    END-STRING
    PERFORM CHECK.

T-RETRY-AFTER-CAPPED.
    PERFORM FRESH-CONFIG
    MOVE "01001008" TO CEPIS-CEP-INPUT
    CALL "cepis_monotonic_ms" USING WS-T0
    CALL "CEPIS-LOOKUP" USING CEPIS-CONFIG CEPIS-CEP-INPUT
                              CEPIS-ADDRESS CEPIS-STATUS
    END-CALL
    CALL "cepis_monotonic_ms" USING WS-T1
    COMPUTE WS-ELAPSED = WS-T1 - WS-T0
    MOVE "N" TO WS-OK
    IF CEPIS-RATE-LIMITED AND WS-ELAPSED < 3000
        MOVE "Y" TO WS-OK
    END-IF
    MOVE "an absurd Retry-After is capped at the backoff maximum"
      TO WS-LABEL
    MOVE SPACES TO WS-DETAIL
    STRING "elapsed ms: " WS-ELAPSED
        DELIMITED BY SIZE INTO WS-DETAIL
    END-STRING
    PERFORM CHECK.

T-RETRY-AFTER-HTTP-DATE.
    PERFORM FRESH-CONFIG
    MOVE "01001009" TO CEPIS-CEP-INPUT
    CALL "CEPIS-LOOKUP" USING CEPIS-CONFIG CEPIS-CEP-INPUT
                              CEPIS-ADDRESS CEPIS-STATUS
    END-CALL
    MOVE "N" TO WS-OK
    IF CEPIS-RATE-LIMITED
       AND CEPIS-STATUS-RETRY-AFTER-MS >= 1000
       AND CEPIS-STATUS-RETRY-AFTER-MS <= 8000
        MOVE "Y" TO WS-OK
    END-IF
    MOVE "Retry-After is also read as an HTTP date" TO WS-LABEL
    MOVE SPACES TO WS-DETAIL
    STRING "retry-after ms: " CEPIS-STATUS-RETRY-AFTER-MS
        DELIMITED BY SIZE INTO WS-DETAIL
    END-STRING
    PERFORM CHECK.

T-NETWORK-ERROR.
    PERFORM FRESH-CONFIG
    MOVE "http://127.0.0.1:1" TO CFG-BASE-URL
    MOVE 2 TO CFG-MAX-ATTEMPTS
    MOVE 1000 TO CFG-TIMEOUT-MS
    MOVE "01001000" TO CEPIS-CEP-INPUT
    CALL "CEPIS-LOOKUP" USING CEPIS-CONFIG CEPIS-CEP-INPUT
                              CEPIS-ADDRESS CEPIS-STATUS
    END-CALL
    MOVE "N" TO WS-OK
    IF CEPIS-NETWORK-ERROR AND CEPIS-STATUS-ATTEMPTS = 2
        MOVE "Y" TO WS-OK
    END-IF
    MOVE "a refused connection is CEPIS-NETWORK-ERROR" TO WS-LABEL
    MOVE CEPIS-STATUS-MESSAGE TO WS-DETAIL
    PERFORM CHECK.

T-TOTAL-TIMEOUT.
    PERFORM FRESH-CONFIG
    MOVE 50 TO CFG-MAX-ATTEMPTS
    MOVE 50 TO CFG-BACKOFF-BASE-MS
    MOVE 50 TO CFG-BACKOFF-MAX-MS
    MOVE 300 TO CFG-TOTAL-TIMEOUT-MS
    MOVE "01001011" TO CEPIS-CEP-INPUT
    CALL "cepis_monotonic_ms" USING WS-T0
    CALL "CEPIS-LOOKUP" USING CEPIS-CONFIG CEPIS-CEP-INPUT
                              CEPIS-ADDRESS CEPIS-STATUS
    END-CALL
    CALL "cepis_monotonic_ms" USING WS-T1
    COMPUTE WS-ELAPSED = WS-T1 - WS-T0
    MOVE CEPIS-STATUS-ATTEMPTS TO WS-SAVED-ATTEMPTS
    MOVE "N" TO WS-OK
    IF CEPIS-SERVER-ERROR AND WS-ELAPSED < 3000
       AND WS-SAVED-ATTEMPTS < 50
        MOVE "Y" TO WS-OK
    END-IF
    MOVE "CFG-TOTAL-TIMEOUT-MS bounds the whole call" TO WS-LABEL
    MOVE SPACES TO WS-DETAIL
    STRING "elapsed ms: " WS-ELAPSED
           " attempts: " WS-SAVED-ATTEMPTS
        DELIMITED BY SIZE INTO WS-DETAIL
    END-STRING
    PERFORM CHECK.

*> ===================================================================
*> Batch
*> ===================================================================
T-BATCH-ORDER.
    PERFORM FRESH-CONFIG
    MOVE 3 TO BATCH-COUNT
    MOVE "01001000" TO BATCH-REQUESTED (1)
    MOVE "99999999" TO BATCH-REQUESTED (2)
    MOVE "20040020" TO BATCH-REQUESTED (3)
    CALL "CEPIS-LOOKUP-MANY" USING CEPIS-CONFIG CEPIS-BATCH
                                   CEPIS-STATUS
    END-CALL
    MOVE "N" TO WS-OK
    IF CEPIS-OK
       AND BATCH-ENTRY-FOUND (1)
       AND BAT-LOCALIDADE (1) = "São Paulo"
       AND BATCH-ENTRY-MISSING (2)
       AND BATCH-ENTRY-FOUND (3)
       AND BAT-UF (3) = "RJ"
       AND BAT-GEO-ABSENT (1)
        MOVE "Y" TO WS-OK
    END-IF
    MOVE "a missing CEP keeps its slot and nothing shifts" TO WS-LABEL
    MOVE CEPIS-STATUS-MESSAGE TO WS-DETAIL
    PERFORM CHECK.

T-BATCH-QUOTING.
    PERFORM FRESH-CONFIG
    MOVE 1 TO BATCH-COUNT
    MOVE "01001111" TO BATCH-REQUESTED (1)
    CALL "CEPIS-LOOKUP-MANY" USING CEPIS-CONFIG CEPIS-BATCH
                                   CEPIS-STATUS
    END-CALL
    MOVE "N" TO WS-OK
    IF CEPIS-OK AND BATCH-ENTRY-FOUND (1)
       AND BAT-LOGRADOURO (1) = "Rua Um, Dois"
       AND BAT-COMPLEMENTO (1) = 'aspas "aqui"'
        MOVE "Y" TO WS-OK
    END-IF
    MOVE "quoted CSV fields with commas and quotes are parsed"
      TO WS-LABEL
    MOVE BAT-LOGRADOURO (1) TO WS-DETAIL
    PERFORM CHECK.

T-BATCH-MALFORMED-ENTRY.
    PERFORM FRESH-CONFIG
    MOVE 3 TO BATCH-COUNT
    MOVE "01001000" TO BATCH-REQUESTED (1)
    MOVE "nonsense" TO BATCH-REQUESTED (2)
    MOVE "20040020" TO BATCH-REQUESTED (3)
    CALL "CEPIS-LOOKUP-MANY" USING CEPIS-CONFIG CEPIS-BATCH
                                   CEPIS-STATUS
    END-CALL
    MOVE "N" TO WS-OK
    IF CEPIS-OK
       AND BATCH-ENTRY-FOUND (1)
       AND BATCH-ENTRY-MISSING (2)
       AND BATCH-ENTRY-FOUND (3)
       AND BAT-UF (3) = "RJ"
        MOVE "Y" TO WS-OK
    END-IF
    MOVE "a malformed CEP is missing, not an error" TO WS-LABEL
    PERFORM CHECK.

T-BATCH-EMPTY.
    MOVE "/csv" TO WS-COUNT-PATH
    PERFORM COUNT-FOR
    MOVE WS-COUNT TO WS-COUNT-BEFORE
    PERFORM FRESH-CONFIG
    MOVE 0 TO BATCH-COUNT
    CALL "CEPIS-LOOKUP-MANY" USING CEPIS-CONFIG CEPIS-BATCH
                                   CEPIS-STATUS
    END-CALL
    MOVE "N" TO WS-OK
    IF CEPIS-OK
        MOVE "Y" TO WS-OK
    END-IF
    MOVE "/csv" TO WS-COUNT-PATH
    PERFORM COUNT-FOR
    IF WS-COUNT NOT = WS-COUNT-BEFORE
        MOVE "N" TO WS-OK
    END-IF
    MOVE "an empty batch makes no request" TO WS-LABEL
    PERFORM CHECK.

T-BATCH-TRUNCATED.
    PERFORM FRESH-CONFIG
    MOVE 2 TO BATCH-COUNT
    MOVE "01001000" TO BATCH-REQUESTED (1)
    MOVE "00000099" TO BATCH-REQUESTED (2)
    CALL "CEPIS-LOOKUP-MANY" USING CEPIS-CONFIG CEPIS-BATCH
                                   CEPIS-STATUS
    END-CALL
    MOVE "N" TO WS-OK
    IF CEPIS-OK AND BATCH-ENTRY-FOUND (1)
       AND BATCH-ENTRY-MISSING (2)
        MOVE "Y" TO WS-OK
    END-IF
    MOVE "a short response pads rather than shifts" TO WS-LABEL
    PERFORM CHECK.

T-BATCH-CHUNKING.
    MOVE "/csv" TO WS-COUNT-PATH
    PERFORM COUNT-FOR
    MOVE WS-COUNT TO WS-COUNT-BEFORE
    PERFORM FRESH-CONFIG
    MOVE 501 TO BATCH-COUNT
    PERFORM VARYING WS-I FROM 1 BY 1 UNTIL WS-I > 501
        COMPUTE WS-NUM8 = 70000000 + WS-I
        MOVE WS-NUM8 TO BATCH-REQUESTED (WS-I)
    END-PERFORM
    CALL "CEPIS-LOOKUP-MANY" USING CEPIS-CONFIG CEPIS-BATCH
                                   CEPIS-STATUS
    END-CALL
    MOVE "N" TO WS-OK
    IF CEPIS-OK AND BATCH-ENTRY-FOUND (1)
       AND BATCH-ENTRY-FOUND (500)
       AND BATCH-ENTRY-FOUND (501)
       AND BAT-LOCALIDADE (501) = "Cidade Sintetica"
        MOVE "Y" TO WS-OK
    END-IF
    MOVE "/csv" TO WS-COUNT-PATH
    PERFORM COUNT-FOR
    COMPUTE WS-COUNT = WS-COUNT - WS-COUNT-BEFORE
    IF WS-COUNT NOT = 2
        MOVE "N" TO WS-OK
    END-IF
    MOVE "501 CEPs become two requests, not one 400" TO WS-LABEL
    MOVE SPACES TO WS-DETAIL
    STRING "requests: " WS-COUNT " status: " CEPIS-STATUS-MESSAGE
        DELIMITED BY SIZE INTO WS-DETAIL
    END-STRING
    PERFORM CHECK.

T-BATCH-OVER-CAPACITY.
    PERFORM FRESH-CONFIG
    MOVE 1001 TO BATCH-COUNT
    CALL "CEPIS-LOOKUP-MANY" USING CEPIS-CONFIG CEPIS-BATCH
                                   CEPIS-STATUS
    END-CALL
    MOVE "N" TO WS-OK
    IF CEPIS-INVALID-CEP
        MOVE "Y" TO WS-OK
    END-IF
    MOVE 0 TO BATCH-COUNT
    MOVE "a BATCH-COUNT past the table is refused, not truncated"
      TO WS-LABEL
    MOVE CEPIS-STATUS-MESSAGE TO WS-DETAIL
    PERFORM CHECK.

*> ===================================================================
*> Health and configuration
*> ===================================================================
T-HEALTH.
    PERFORM FRESH-CONFIG
    CALL "CEPIS-HEALTH" USING CEPIS-CONFIG CEPIS-HEALTH CEPIS-STATUS
    END-CALL
    MOVE "N" TO WS-OK
    IF CEPIS-OK AND HEALTH-OK AND HEALTH-DNE = "26071"
       AND HEALTH-CEPS = 1596168 AND HEALTH-GEO = 894489
       AND HEALTH-BASE-GERADA-EM = "2026-07-24T03:48:28Z"
        MOVE "Y" TO WS-OK
    END-IF
    MOVE "health reports the live database" TO WS-LABEL
    MOVE CEPIS-STATUS-MESSAGE TO WS-DETAIL
    PERFORM CHECK.

T-HEALTH-DEGRADED.
    PERFORM FRESH-CONFIG
    MOVE SPACES TO CFG-BASE-URL
    STRING FUNCTION TRIM (WS-BASE) "/degraded"
        DELIMITED BY SIZE INTO CFG-BASE-URL
    END-STRING
    CALL "CEPIS-HEALTH" USING CEPIS-CONFIG CEPIS-HEALTH CEPIS-STATUS
    END-CALL
    MOVE "N" TO WS-OK
    IF CEPIS-OK AND NOT HEALTH-OK
       AND HEALTH-STATUS = "degradado"
       AND CEPIS-STATUS-ATTEMPTS = 1
        MOVE "Y" TO WS-OK
    END-IF
    MOVE "a degraded API is diagnosed, not retried" TO WS-LABEL
    MOVE HEALTH-STATUS TO WS-DETAIL
    PERFORM CHECK.

T-TRAILING-SLASH.
    PERFORM FRESH-CONFIG
    MOVE SPACES TO CFG-BASE-URL
    STRING FUNCTION TRIM (WS-BASE) "/"
        DELIMITED BY SIZE INTO CFG-BASE-URL
    END-STRING
    MOVE "01001000" TO CEPIS-CEP-INPUT
    CALL "CEPIS-LOOKUP" USING CEPIS-CONFIG CEPIS-CEP-INPUT
                              CEPIS-ADDRESS CEPIS-STATUS
    END-CALL
    MOVE "N" TO WS-OK
    IF CEPIS-OK AND ADDR-UF = "SP"
        MOVE "Y" TO WS-OK
    END-IF
    MOVE "a trailing slash on the base URL is dropped" TO WS-LABEL
    MOVE CEPIS-STATUS-MESSAGE TO WS-DETAIL
    PERFORM CHECK.

T-DEFAULT-USER-AGENT.
    CALL "CEPIS-DEFAULT-CONFIG" USING CEPIS-CONFIG
    MOVE 0 TO WS-TALLY
    INSPECT CFG-USER-AGENT TALLYING WS-TALLY FOR ALL "cepis-cobol/0.2.0"
    MOVE "N" TO WS-OK
    IF WS-TALLY = 1 AND CFG-BASE-URL = "https://cep.is"
       AND CFG-MAX-ATTEMPTS = 3 AND CFG-BACKOFF-BASE-MS = 500
       AND CFG-BACKOFF-MAX-MS = 8000
        MOVE "Y" TO WS-OK
    END-IF
    MOVE "the defaults identify the library and its version"
      TO WS-LABEL
    MOVE CFG-USER-AGENT TO WS-DETAIL
    PERFORM CHECK.

END PROGRAM CEPIS-TESTS.