Fixture for a product's group price not working

Question

I'm using EcomDev_PHPUnit on Magento EE 1.14.2.1, and am trying to set up a simple unit test for a configurable and simple product which have group prices associated, but I'm not having any luck getting the fixture to work.

My test:

# File: .../ObserverTest.php
/**
 * @loadFixture stores
 * @loadFixture
 */
public function testGroupPriceExample()
{
    $configurable = Mage::getModel('catalog/product')->load(1);
    var_dump($configurable->getData('group_price'));
}

For now, I just want to output the group_price as happens when I do this through the observer subject class that I want to test.

My fixtures:

# File: fixtures/stores.yaml
scope:
    website:
        - website_id: 1
          code: us_eng
          name: United States
          default_group_id: 1
    group:
        - group_id: 1
          website_id: 1
          name: United States
          default_store_id: 1
          root_category_id: 2
    store:
        - store_id: 1
          website_id: 1
          group_id: 1
          code: us_eng
          name: United States

The stores fixture works fine, and I have used it in plenty of other unit tests.

The product fixture:

# File: fixtures/testGroupPriceExample.yaml
# Set up a configurable with group pricing and a bunch of simples without
eav:
    catalog_product:
        - entity_id: 1
          sku: 12345/RED/
          name: Configurable
          attribute_set_id: 4
          entity_type_id: 4
          type_id: configurable
          group_price: test
        - entity_id: 2
          sku: 12345/RED/S
          attribute_set_id: 4
          entity_type_id: 4
          name: Some simple
          type_id: simple
        - entity_id: 3
          sku: 12345/RED/M
          attribute_set_id: 4
          entity_type_id: 4
          name: Another simple
          type_id: simple
tables:
    # Set up the simple/configurable relationships
    catalog/product_relation:
        - parent_id       : 1
          child_id        : 2
        - parent_id       : 1
          child_id        : 2
    # Set up the customer group
    customer/customer_group:
        - customer_group_id: 4
          customer_group_code: Loyalty Group
          tax_class_id: 3

I've tried a bunch of different ways of getting a group price set, e.g. under tables: catalog/product_group_price (results in fixture load failure), eav: catalog/product_group_price (same), directly as an attribute on the product entity e.g. group_price: 123.00 and still I always get NULL from the var_dump in my unit test.

Has anyone created a group price fixture before and could point me in the direction of how to do it?

FYI the stores fixture is in place so that I can fixture a product's group price to be say "$25.99" for Loyalty Group (group_id 4) and the US website (website_id 1).

Answer 1

First, remove the group_price attribute from your product fixture and assign a proper price that is higher than the group price, e.g.

eav:
    catalog_product:
        - entity_id: 1
          […]
          price: 29.99

Second, use the correct table alias for your group price fixture, e.g.

tables:
    […]
    catalog/product_attribute_group_price:
        - value_id: 1
          entity_id: 1
          all_groups: 0
          customer_group_id: 4
          value: 25.99
          website_id: 0

Third, in your test method, make sure your "customer" is in a customer group that a group price can be applied to, e.g.

$sessionMock = $this->getModelMock(
    'customer/session',
    array('init', 'getCustomerGroupId')
);
$sessionMock
    ->expects($this->any())
    ->method('getCustomerGroupId')
    ->willReturn(4)
;
$this->replaceByMock('singleton', 'customer/session', $sessionMock);

And finally, test whatever is important to be tested, e.g.

$configurable = Mage::getModel('catalog/product')->load(1);
$this->assertNotNull($configurable->getGroupPrice());
$this->assertLessThan($configurable->getPrice(), $configurable->getGroupPrice());