Confirms that we can update two blob columns in the same table.
function testUpdateMultipleBlob() {
$id = db_insert('test_two_blobs')
->fields(array(
'blob1' => 'This is',
'blob2' => 'a test',
))
->execute();
db_update('test_two_blobs')
->condition('id', $id)
->fields(array(
'blob1' => 'and so',
'blob2' => 'is this',
))
->execute();
$r = db_query('SELECT * FROM {test_two_blobs} WHERE id = :id', array(
':id' => $id,
))
->fetchAssoc();
$this
->assertTrue($r['blob1'] === 'and so' && $r['blob2'] === 'is this', 'Can update multiple blobs per row.');
}