Test the submission of single and multiple values when #multiple is TRUE.
function testMultipleTrueSubmit() {
// Test a submission with one checkbox checked.
$edit = array();
$edit['tableselect[row1]'] = TRUE;
$this
->drupalPost('form_test/tableselect/multiple-true', $edit, 'Submit');
$this
->assertText(t('Submitted: row1 = row1'), 'Checked checkbox row1');
$this
->assertText(t('Submitted: row2 = 0'), 'Unchecked checkbox row2.');
$this
->assertText(t('Submitted: row3 = 0'), 'Unchecked checkbox row3.');
// Test a submission with multiple checkboxes checked.
$edit['tableselect[row1]'] = TRUE;
$edit['tableselect[row3]'] = TRUE;
$this
->drupalPost('form_test/tableselect/multiple-true', $edit, 'Submit');
$this
->assertText(t('Submitted: row1 = row1'), 'Checked checkbox row1.');
$this
->assertText(t('Submitted: row2 = 0'), 'Unchecked checkbox row2.');
$this
->assertText(t('Submitted: row3 = row3'), 'Checked checkbox row3.');
}