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# This test makes sure that there is no way to disable InnoDB in 5.7.
# In other words: even though --skip-innodb (or --innodb=OFF) is specified,
# InnoDB is still enabled.

# Just for consistency.
--source include/have_innodb.inc

--let SEARCH_FILE= $MYSQLTEST_VARDIR/log/mysqld.1.err
--let SEARCH_PATTERN= The use of InnoDB is mandatory since MySQL 5\.7\. The former options like .* are ignored\.
# >= 7 because
# - We have 7 server startup options which cause one warning in server error
#   log per option.
# - It cannot be excluded that
#   - some MTR run setup goes with additional options causing more of such
#     warnings. Example:
#        ./mtr --mysqld=--innodb innodb_disabled -> 1 + 7 warnings
#   - at runtime several tests use such options
#     Example:
#        ./mtr <execute somehow many tests>
#        ...
#        test A uses "--innodb" and causes a server restart --> 1 warning
#        ...
#        innodb_disabled --> 7 warnings more
#
--let MINIMUM_MATCHES= 7
eval CALL mtr.add_suppression("$SEARCH_PATTERN");

SELECT support FROM INFORMATION_SCHEMA.ENGINES WHERE engine = 'innodb';

# In case of the embedded server the server error log will not contain
# the warnings.
if (`select version() like '%embedded%' = 1`)
{
exit;
}
perl;
    use strict;
    my $search_file=     $ENV{'SEARCH_FILE'}     or die "SEARCH_FILE not set";
    my $search_pattern=  $ENV{'SEARCH_PATTERN'}  or die "SEARCH_PATTERN not set";
    my $minimum_matches= $ENV{'MINIMUM_MATCHES'} or die "MINIMUM_MATCHES not set";
    open(FILE, "$search_file") or die("Unable to open '$search_file': $!\n");
    read(FILE, my $file_content, 10000000, 0);
    close(FILE);
    my $file_content1= $file_content;
    my $count = ( $file_content1 =~ s{$search_pattern}{}gm );
    if ( not $count >= $minimum_matches ) {
       die("# ERROR: The file '$search_file' does not contain \n".
           "#        the expected pattern '$search_pattern' often enough.\n".
           "#        Found: $count    Expected: >= $minimum_matches\n".
           "# File content begin ===========\n$file_content\n".
           "# File content end   ===========\n");
    }
EOF