function SchemaTestCase::testUnsignedColumns in Drupal 7

Tests creating unsigned columns and data integrity thereof.

File

modules/simpletest/tests/schema.test, line 172

Tests for the Database Schema API.

Class

SchemaTestCase

Unit tests for the Schema API.

Code

function testUnsignedColumns() {

  // First create the table with just a serial column.
  $table_name = 'unsigned_table';
  $table_spec = array(
    'fields' => array(
      'serial_column' => array(
        'type' => 'serial',
        'unsigned' => TRUE,
        'not null' => TRUE,
      ),
    ),
    'primary key' => array(
      'serial_column',
    ),
  );
  $ret = array();
  db_create_table($table_name, $table_spec);

  // Now set up columns for the other types.
  $types = array(
    'int',
    'float',
    'numeric',
  );
  foreach ($types as $type) {
    $column_spec = array(
      'type' => $type,
      'unsigned' => TRUE,
    );
    if ($type == 'numeric') {
      $column_spec += array(
        'precision' => 10,
        'scale' => 0,
      );
    }
    $column_name = $type . '_column';
    $table_spec['fields'][$column_name] = $column_spec;
    db_add_field($table_name, $column_name, $column_spec);
  }

  // Finally, check each column and try to insert invalid values into them.
  foreach ($table_spec['fields'] as $column_name => $column_spec) {
    $this
      ->assertTrue(db_field_exists($table_name, $column_name), format_string('Unsigned @type column was created.', array(
      '@type' => $column_spec['type'],
    )));
    $this
      ->assertFalse($this
      ->tryUnsignedInsert($table_name, $column_name), format_string('Unsigned @type column rejected a negative value.', array(
      '@type' => $column_spec['type'],
    )));
  }
}