[t] skp all tests if the first connect throws an error

t/10-mysql.t

@@ -75,10 +75,20 @@ ok $drh_version > 0, "DBDish::mysql version $drh_version"; # test 2
 #ok defined $dbh, "Connected to database";
 #ok $dbh->disconnect();
 #
-my $dbh = DBIish.connect($mdriver, :user($test_user), :password($test_password),
+my $dbh = try {
+    CATCH { default {
+        diag "Connect failed with error $_";
+        skip 'connect failed -- missing prereqs?', 85;
+        exit;
+
+    }}
+
+    DBIish.connect($mdriver, :user($test_user), :password($test_password),
         :$host, :$port, :$database,
         RaiseError => 1, PrintError => 1, AutoCommit => 0
-);
+    );
+}
+
 # die "ERROR: {DBIish.errstr}. Can't continue test" if $!.defined;
 ok $dbh.defined, "Connected to database"; # test 3
 my $result = $dbh.disconnect();

t/99-common.pl6

@@ -27,7 +27,17 @@ $drh_version = $drh.Version;
 ok $drh_version > 0, "MiniDBD::$*mdriver version $drh_version"; # test 2
 
 # Connect to the data sourcequantity*price AS amount FROM nom
-my $dbh = DBIish.connect( $*mdriver, |%*opts, :RaiseError<1> );
+my $dbh;
+try {
+    $dbh = DBIish.connect( $*mdriver, |%*opts, :RaiseError<1> );
+    CATCH {
+        default {
+            diag "Connect failed with error $_";
+            skip 'connect failed -- maybe the prerequisits are not installed?', 38;
+            exit;
+        }
+    }
+}
 ok $dbh, "connect to %*opts<database>"; # test 3
 
 try eval '$*post_connect_cb.($dbh)';