silverstripe-framework/tests/php/Forms/DropdownFieldTest.php

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<?php
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namespace SilverStripe\Forms\Tests;
use SilverStripe\Control\Controller;
use SilverStripe\ORM\ArrayList;
use SilverStripe\Dev\CSSContentParser;
use SilverStripe\Dev\SapphireTest;
use SilverStripe\Forms\DropdownField;
use SilverStripe\Forms\RequiredFields;
use SilverStripe\Forms\FieldList;
use SilverStripe\Forms\Form;
use SilverStripe\View\ArrayData;
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use SilverStripe\ORM\Map;
class DropdownFieldTest extends SapphireTest
{
public function testGetSource()
{
$source = array(1=>'one', 2 => 'two');
$field = new DropdownField('Field', null, $source);
$this->assertEquals(
$source,
$field->getSource()
);
$this->assertEquals(
$source,
$field->getSource()
);
$items = new ArrayList(
array(
array( 'ID' => 1, 'Title' => 'ichi', 'OtherField' => 'notone' ),
array( 'ID' => 2, 'Title' => 'ni', 'OtherField' => 'nottwo' ),
)
);
$field->setSource($items);
$this->assertEquals(
$field->getSource(),
array(
1 => 'ichi',
2 => 'ni',
)
);
$map = new Map($items, 'ID', 'OtherField');
$field->setSource($map);
$this->assertEquals(
$field->getSource(),
array(
1 => 'notone',
2 => 'nottwo',
)
);
}
/**
* Test different data sources
*/
public function testSources()
{
// Array
$items = array('a' => 'Apple', 'b' => 'Banana', 'c' => 'Cranberry');
$field = new DropdownField('Field', null, $items);
$this->assertEquals($items, $field->getSource());
// SS_List
$list = new ArrayList(
array(
new ArrayData(
array(
'ID' => 'a',
'Title' => 'Apple'
)
),
new ArrayData(
array(
'ID' => 'b',
'Title' => 'Banana'
)
),
new ArrayData(
array(
'ID' => 'c',
'Title' => 'Cranberry'
)
)
)
);
$field2 = new DropdownField('Field', null, $list);
$this->assertEquals($items, $field2->getSource());
$field3 = new DropdownField('Field', null, $list->map());
$this->assertEquals($items, $field3->getSource());
}
public function testReadonlyField()
{
$field = new DropdownField('FeelingOk', 'Are you feeling ok?', array(0 => 'No', 1 => 'Yes'));
$field->setEmptyString('(Select one)');
$field->setValue(1);
$readonlyField = $field->performReadonlyTransformation();
preg_match('/Yes/', $field->Field(), $matches);
$this->assertEquals($matches[0], 'Yes');
}
public function testHasEmptyDefault()
{
$source = array(1 => 'one');
// Test getSource with empty
$field = new DropdownField('Field', null, $source);
$field->setHasEmptyDefault(true);
$this->assertEquals(
$field->getSource(),
array(
1 => 'one'
)
);
// Test that an empty option comes through in the markup however
$options = $this->findOptionElements($field->Field());
$this->assertEquals(
2,
count($options),
'Two options exist in the markup, one for the source, one for empty'
);
// the default value should be first
$first = array_shift($options);
$attrs = $first->attributes();
$this->assertNotEquals(
1,
$attrs['value'],
'First value is the not value (not the source value)'
);
// Test Field Without Empty
$FieldWithoutEmpty = new DropdownField('Field', null, $source);
$this->assertEquals(
$FieldWithoutEmpty->getSource(),
array(
1 => 'one'
)
);
$this->assertEquals(
1,
count($options),
'As hasEmptyDefault is not provided, then no default option.'
);
}
public function testZeroArraySourceNotOverwrittenByEmptyString()
{
$source = array(0=>'zero');
$field = new DropdownField('Field', null, $source);
$field->setEmptyString('select...');
$this->assertEquals(
$field->getSource(),
array(
0 => 'zero'
)
);
$options = $this->findOptionElements($field->Field());
$this->assertEquals(
2,
count($options),
'Two options exist in the markup, one for the source, one for empty'
);
}
public function testStringZeroValueSelectedOptionBehaviour()
{
$field = new DropdownField(
'Field',
null,
array(
'-1' => 'some negative',
'0' => 'none',
'1' => 'one',
'2+' => 'two or more'
),
'0'
);
$selectedOptions = $this->findSelectedOptionElements($field->Field());
$this->assertEquals((string) $selectedOptions[0], 'none', 'The selected option is "none"');
$field = new DropdownField(
'Field',
null,
array(
'-1' => 'some negative',
'0' => 'none',
'1' => 'one',
'2+' => 'two or more'
),
0
);
$selectedOptions = $this->findSelectedOptionElements($field->Field());
$this->assertEquals((string) $selectedOptions[0], 'none', 'The selected option is "none"');
}
public function testStringOneValueSelectedOptionBehaviour()
{
$field = new DropdownField(
'Field',
null,
array(
'-1' => 'some negative',
'0' => 'none',
'1' => 'one',
'2+' => 'two or more'
),
'1'
);
$selectedOptions = $this->findSelectedOptionElements($field->Field());
$this->assertEquals((string) $selectedOptions[0], 'one', 'The selected option is "one"');
$field = new DropdownField(
'Field',
null,
array(
'-1' => 'some negative',
'0' => 'none',
'1' => 'one',
'2+' => 'two or more'
),
1
);
$selectedOptions = $this->findSelectedOptionElements($field->Field());
$this->assertEquals((string) $selectedOptions[0], 'one', 'The selected option is "one"');
}
public function testNumberOfSelectOptionsAvailable()
{
/* Create a field with a blank value */
$field = $this->createDropdownField('(Any)');
/* 3 options are available */
$this->assertEquals(count($this->findOptionElements($field->Field())), 3, '3 options are available');
$selectedOptions = $this->findSelectedOptionElements($field->Field());
$this->assertEquals(
count($selectedOptions),
1,
'We only have 1 selected option, since a dropdown can only possibly have one!'
);
/* Create a field without a blank value */
$field = $this->createDropdownField();
/* 2 options are available */
$this->assertEquals(count($this->findOptionElements($field->Field())), 2, '2 options are available');
$selectedOptions = $this->findSelectedOptionElements($field->Field());
$this->assertEquals(count($selectedOptions), 0, 'There are no selected options');
}
public function testIntegerZeroValueSeelctedOptionBehaviour()
{
$field = $this->createDropdownField('(Any)', 0);
$selectedOptions = $this->findSelectedOptionElements($field->Field());
$this->assertEquals((string) $selectedOptions[0], 'No', 'The selected option is "No"');
}
public function testBlankStringValueSelectedOptionBehaviour()
{
$field = $this->createDropdownField('(Any)');
$selectedOptions = $this->findSelectedOptionElements($field->Field());
$this->assertEquals((string) $selectedOptions[0], '(Any)', 'The selected option is "(Any)"');
}
public function testNullValueSelectedOptionBehaviour()
{
$field = $this->createDropdownField('(Any)', null);
$selectedOptions = $this->findSelectedOptionElements($field->Field());
$this->assertEquals((string) $selectedOptions[0], '(Any)', 'The selected option is "(Any)"');
}
public function testStringValueSelectedOptionBehaviour()
{
$field = $this->createDropdownField('(Any)', '1');
$selectedOptions = $this->findSelectedOptionElements($field->Field());
$this->assertEquals((string) $selectedOptions[0], 'Yes', 'The selected option is "Yes"');
$field->setSource(
array(
'Cats' => 'Cats and Kittens',
'Dogs' => 'Dogs and Puppies'
)
);
$field->setValue('Cats');
$selectedOptions = $this->findSelectedOptionElements($field->Field());
$this->assertEquals(
(string) $selectedOptions[0],
'Cats and Kittens',
'The selected option is "Cats and Kittens"'
);
}
public function testNumberOfDisabledOptions()
{
/* Create a field with a blank value & set 0 & 1 to disabled */
$field = $this->createDropdownField('(Any)');
$field->setDisabledItems(array(0,1));
/* 3 options are available */
$this->assertEquals(count($this->findOptionElements($field->Field())), 3, '3 options are available');
/* There are 2 disabled options */
$disabledOptions = $this->findDisabledOptionElements($field->Field());
$this->assertEquals(count($disabledOptions), 2, 'We have 2 disabled options');
/* Create a field without a blank value & set 1 to disabled, then set none to disabled (unset) */
$field = $this->createDropdownField();
$field->setDisabledItems(array(1));
/* 2 options are available */
$this->assertEquals(count($this->findOptionElements($field->Field())), 2, '2 options are available');
/* get disabled items returns an array of one */
$this->assertEquals(
$field->getDisabledItems(),
array( 1 )
);
/* unset disabled items */
$field->setDisabledItems(array());
/* There are no disabled options anymore */
$disabledOptions = $this->findDisabledOptionElements($field->Field());
$this->assertEquals(count($disabledOptions), 0, 'There are no disabled options');
}
/**
* The Field() method should be able to handle arrays as values in an edge case. If it couldn't handle it then
* this test would trigger an array to string conversion PHP notice
*
* @dataProvider arrayValueProvider
*/
public function testDropdownWithArrayValues($value)
{
$field = $this->createDropdownField();
$field->setValue($value);
$this->assertInstanceOf('SilverStripe\\ORM\\FieldType\\DBHTMLText', $field->Field());
$this->assertSame($value, $field->Value());
}
/**
* @return array
*/
public function arrayValueProvider()
{
return array(
array(array()),
array(array(0)),
array(array(123)),
array(array('string')),
array('Regression-ish test.')
);
}
/**
* Create a test dropdown field, with the option to
* set what source and blank value it should contain
* as optional parameters.
*
* @param string|null $emptyString The text to display for the empty value
* @param string|integer $value The default value of the field
* @return DropdownField object
*/
public function createDropdownField($emptyString = null, $value = '')
{
/* Set up source, with 0 and 1 integers as the values */
$source = array(
0 => 'No',
1 => 'Yes'
);
$field = new DropdownField('Field', null, $source, $value);
if ($emptyString !== null) {
$field->setEmptyString($emptyString);
}
return $field;
}
/**
* Find all the <OPTION> elements from a
* string of HTML.
*
* @param string $html HTML to scan for elements
* @return SimpleXMLElement
*/
public function findOptionElements($html)
{
$parser = new CSSContentParser($html);
return $parser->getBySelector('option');
}
/**
* Find all the <OPTION> elements from a
* string of HTML that have the "selected"
* attribute.
*
* @param string $html HTML to parse for elements
* @return array of SimpleXMLElement objects
*/
public function findSelectedOptionElements($html)
{
$options = $this->findOptionElements($html);
/* Find any elements that have the "selected" attribute and put them into a list */
$foundSelected = array();
foreach ($options as $option) {
$attributes = $option->attributes();
if ($attributes) {
foreach ($attributes as $attribute => $value) {
if ($attribute == 'selected') {
$foundSelected[] = $option;
}
}
}
}
return $foundSelected;
}
/**
* Find all the <OPTION> elements from a
* string of HTML that have the "disabled"
* attribute.
*
* @param string $html HTML to parse for elements
* @return array of SimpleXMLElement objects
*/
public function findDisabledOptionElements($html)
{
$options = $this->findOptionElements($html);
/* Find any elements that have the "disabled" attribute and put them into a list */
$foundDisabled = array();
foreach ($options as $option) {
$attributes = $option->attributes();
if ($attributes) {
foreach ($attributes as $attribute => $value) {
if ($attribute == 'disabled') {
$foundDisabled[] = $option;
}
}
}
}
return $foundDisabled;
}
/**
* @skipUpgrade
*/
public function testValidation()
{
$field = DropdownField::create(
'Test',
'Testing',
array(
"One" => "One",
"Two" => "Two",
"Five" => "Five"
)
);
$validator = new RequiredFields();
$form = new Form(null, 'Form', new FieldList($field), new FieldList(), $validator);
$field->setValue("One");
$this->assertTrue($field->validate($validator));
$field->setName("TestNew"); //try changing name of field
$this->assertTrue($field->validate($validator));
//non-existent value should make the field invalid
$field->setValue("Three");
$this->assertFalse($field->validate($validator));
//empty string shouldn't validate
$field->setValue('');
$this->assertFalse($field->validate($validator));
//empty field should validate after being set
$field->setEmptyString('Empty String');
$field->setValue('');
$this->assertTrue($field->validate($validator));
//disabled items shouldn't validate
$field->setDisabledItems(array('Five'));
$field->setValue('Five');
$this->assertFalse($field->validate($validator));
}
/**
* #2939 DropdownField creates invalid HTML when required
*/
public function testRequiredDropdownHasEmptyDefault()
{
$field = new \SilverStripe\Forms\DropdownField("RequiredField", "dropdown", ["item 1", "item 2"]);
$form = new Form(
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Controller::curr(),
"form",
new FieldList($field),
new FieldList(),
new RequiredFields(["RequiredField"])
);
$this->assertTrue($field->getHasEmptyDefault());
}
}