Tests changing the style plugin and changing some options of a style.
public function testStyleUI() {
$view_name = 'test_view';
$view = views_get_view($view_name);
$view_edit_url = "admin/structure/views/view/{$view_name}/edit";
$style_plugin_url = "admin/structure/views/nojs/display/{$view_name}/default/style";
$style_options_url = "admin/structure/views/nojs/display/{$view_name}/default/style_options";
$this
->drupalGet($style_plugin_url);
$this
->assertFieldByName('style', 'default', 'The default style plugin selected in the UI should be unformatted list.');
$edit = array(
'style' => 'test_style',
);
$this
->drupalPost(NULL, $edit, t('Apply'));
$this
->assertFieldByName('style_options[test_option]', NULL, 'Make sure the custom settings form from the test plugin appears.');
$random_name = $this
->randomName();
$edit = array(
'style_options[test_option]' => $random_name,
);
$this
->drupalPost(NULL, $edit, t('Apply'));
$this
->drupalGet($style_options_url);
$this
->assertFieldByName('style_options[test_option]', $random_name, 'Make sure the custom settings form field has the expected value stored.');
$this
->drupalPost($view_edit_url, array(), t('Save'));
$this
->assertLink(t('Test style plugin'), 0, 'Make sure the test style plugin is shown in the UI');
$view = views_get_view($view_name);
$view
->initDisplay();
$style = $view->display_handler
->getOption('style');
$this
->assertEqual($style['type'], 'test_style', 'Make sure that the test_style got saved as used style plugin.');
$this
->assertEqual($style['options']['test_option'], $random_name, 'Make sure that the custom settings field got saved as expected.');
}