Tests form alterations by #element_validate, #validate, and form_set_value().
function testValidate() {
$this
->drupalGet('form-test/validate');
// Verify that #element_validate handlers can alter the form and submitted
// form values.
$edit = array(
'name' => 'element_validate',
);
$this
->drupalPost(NULL, $edit, 'Save');
$this
->assertFieldByName('name', '#value changed by #element_validate', 'Form element #value was altered.');
$this
->assertText('Name value: value changed by form_set_value() in #element_validate', 'Form element value in $form_state was altered.');
// Verify that #validate handlers can alter the form and submitted
// form values.
$edit = array(
'name' => 'validate',
);
$this
->drupalPost(NULL, $edit, 'Save');
$this
->assertFieldByName('name', '#value changed by #validate', 'Form element #value was altered.');
$this
->assertText('Name value: value changed by form_set_value() in #validate', 'Form element value in $form_state was altered.');
// Verify that #element_validate handlers can make form elements
// inaccessible, but values persist.
$edit = array(
'name' => 'element_validate_access',
);
$this
->drupalPost(NULL, $edit, 'Save');
$this
->assertNoFieldByName('name', 'Form element was hidden.');
$this
->assertText('Name value: element_validate_access', 'Value for inaccessible form element exists.');
// Verify that value for inaccessible form element persists.
$this
->drupalPost(NULL, array(), 'Save');
$this
->assertNoFieldByName('name', 'Form element was hidden.');
$this
->assertText('Name value: element_validate_access', 'Value for inaccessible form element exists.');
}