Fix DatabaseMetaDataTest in JDBC test suite

Your patch has been added to the PostgreSQL unapplied patches list at:

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I will try to apply it within the next 48 hours.

Attached is a patch that fixes DatabaseMetaDataTest in the JDBC
driver's test suite. With previous patches applied, this reduces
the number of failures of the test suite from 6 to 4. The patch
fixes the test case itself, rather than the driver.

Details:

1) The driver correctly provided DatabaseMetaData about the sort
order of NULLs. This was confirmed by Peter Eisentraut on
pgsql-hackers. I fixed the test to accept/require the current
behaviour, and made it dependent on the backend version. See
nullsAreSortedAtStart(), nullsAreSortedAtEnd(),
nullsAreSortedHigh() and nullsAreSortedLow().

2) DatabaseMetaData.supportsOrderByUnrelated() correctly
returned true (an ORDER BY clause can contain columns that are
not in the SELECT clause), but the test case required false.
Fixed that.

3) Replaced deprecated assert() of junit.framework.TestCase by
assertEquals(), assertTrue() and assertNotNull(). This is
because assert will be a new keyword in Java 1.4.

4) Replaced assert(message,false) by the more elegant
fail(message).

Regards,
Ren? Pijlman <rene@lab.applinet.nl>

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-- 
  Bruce Momjian                        |  http://candle.pha.pa.us
  pgman@candle.pha.pa.us               |  (610) 853-3000
  +  If your life is a hard drive,     |  830 Blythe Avenue
  +  Christ can be your backup.        |  Drexel Hill, Pennsylvania 19026

Patch applied. Thanks.

Attached is a patch that fixes DatabaseMetaDataTest in the JDBC
driver's test suite. With previous patches applied, this reduces
the number of failures of the test suite from 6 to 4. The patch
fixes the test case itself, rather than the driver.

Details:

1) The driver correctly provided DatabaseMetaData about the sort
order of NULLs. This was confirmed by Peter Eisentraut on
pgsql-hackers. I fixed the test to accept/require the current
behaviour, and made it dependent on the backend version. See
nullsAreSortedAtStart(), nullsAreSortedAtEnd(),
nullsAreSortedHigh() and nullsAreSortedLow().

2) DatabaseMetaData.supportsOrderByUnrelated() correctly
returned true (an ORDER BY clause can contain columns that are
not in the SELECT clause), but the test case required false.
Fixed that.

3) Replaced deprecated assert() of junit.framework.TestCase by
assertEquals(), assertTrue() and assertNotNull(). This is
because assert will be a new keyword in Java 1.4.

4) Replaced assert(message,false) by the more elegant
fail(message).

Regards,
Ren? Pijlman <rene@lab.applinet.nl>

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-- 
  Bruce Momjian                        |  http://candle.pha.pa.us
  pgman@candle.pha.pa.us               |  (610) 853-3000
  +  If your life is a hard drive,     |  830 Blythe Avenue
  +  Christ can be your backup.        |  Drexel Hill, Pennsylvania 19026