woocommerce/tests/unit-tests/discounts/discounts.php

376 lines
8.6 KiB
PHP

<?php
/**
* Test for the discounts class.
* @package WooCommerce\Tests\Discounts
*/
class WC_Tests_Discounts extends WC_Unit_Test_Case {
/**
* Test get and set items.
*/
public function test_get_set_items_from_cart() {
// Create dummy product - price will be 10
$product = WC_Helper_Product::create_simple_product();
// Add product to the cart.
WC()->cart->add_to_cart( $product->get_id(), 1 );
// Add product to a dummy order.
$order = new WC_Order();
$order->add_product( $product, 1 );
$order->calculate_totals();
$order->save();
// Test setting items to the cart.
$discounts = new WC_Discounts();
$discounts->set_items_from_cart( WC()->cart );
$this->assertEquals( 1, count( $discounts->get_items() ) );
// Test setting items to an order.
$discounts = new WC_Discounts();
$discounts->set_items_from_cart( WC()->cart );
$this->assertEquals( 1, count( $discounts->get_items() ) );
// Empty array of items.
$discounts = new WC_Discounts();
$discounts->set_items_from_cart( array() );
$this->assertEquals( array(), $discounts->get_items() );
// Invalid items.
$discounts = new WC_Discounts();
$discounts->set_items_from_cart( false );
$this->assertEquals( array(), $discounts->get_items() );
// Cleanup.
WC()->cart->empty_cart();
$product->delete( true );
$order->delete( true );
}
/**
* Test applying a coupon (make sure it changes prices).
*/
public function test_apply_coupon() {
$discounts = new WC_Discounts();
// Create dummy content.
$product = WC_Helper_Product::create_simple_product();
$product->set_tax_status( 'taxable' );
$product->save();
WC()->cart->empty_cart();
WC()->cart->add_to_cart( $product->get_id(), 1 );
$coupon = WC_Helper_Coupon::create_coupon( 'test' );
$coupon->set_amount( 10 );
// Apply a percent discount.
$coupon->set_discount_type( 'percent' );
$discounts->set_items_from_cart( WC()->cart );
$discounts->apply_coupon( $coupon );
$this->assertEquals( 9, $discounts->get_discounted_price( current( $discounts->get_items() ) ), print_r( $discounts->get_discounts(), true ) );
// Apply a fixed cart coupon.
$coupon->set_discount_type( 'fixed_cart' );
$discounts->set_items_from_cart( WC()->cart );
$discounts->apply_coupon( $coupon );
$this->assertEquals( 0, $discounts->get_discounted_price( current( $discounts->get_items() ) ), print_r( $discounts->get_discounts(), true ) );
// Apply a fixed product coupon.
$coupon->set_discount_type( 'fixed_product' );
$discounts->set_items_from_cart( WC()->cart );
$discounts->apply_coupon( $coupon );
$this->assertEquals( 0, $discounts->get_discounted_price( current( $discounts->get_items() ) ), print_r( $discounts->get_discounts(), true ) );
// Cleanup.
WC()->cart->empty_cart();
$product->delete( true );
$coupon->delete( true );
}
/**
* Test various discount calculations are working correctly and produding expected results.
*/
public function test_calculations() {
$tax_rate = array(
'tax_rate_country' => '',
'tax_rate_state' => '',
'tax_rate' => '20.0000',
'tax_rate_name' => 'VAT',
'tax_rate_priority' => '1',
'tax_rate_compound' => '0',
'tax_rate_shipping' => '1',
'tax_rate_order' => '1',
'tax_rate_class' => '',
);
$tax_rate_id = WC_Tax::_insert_tax_rate( $tax_rate );
update_option( 'woocommerce_calc_taxes', 'yes' );
$tests = array(
array(
'prices_include_tax' => false,
'cart' => array(
array(
'price' => 10,
'qty' => 1,
),
),
'coupons' => array(
array(
'code' => 'test',
'discount_type' => 'percent',
'amount' => '20',
),
),
'expected_total_discount' => 2,
),
array(
'prices_include_tax' => false,
'cart' => array(
array(
'price' => 10,
'qty' => 2,
),
),
'coupons' => array(
array(
'code' => 'test',
'discount_type' => 'fixed_cart',
'amount' => '10',
),
),
'expected_total_discount' => 10,
),
array(
'prices_include_tax' => false,
'cart' => array(
array(
'price' => 10,
'qty' => 1,
),
array(
'price' => 10,
'qty' => 1,
),
),
'coupons' => array(
array(
'code' => 'test',
'discount_type' => 'fixed_cart',
'amount' => '10',
),
),
'expected_total_discount' => 10,
),
array(
'prices_include_tax' => false,
'cart' => array(
array(
'price' => 10,
'qty' => 1,
),
array(
'price' => 10,
'qty' => 1,
),
array(
'price' => 10,
'qty' => 1,
),
),
'coupons' => array(
array(
'code' => 'test',
'discount_type' => 'fixed_cart',
'amount' => '10',
),
),
'expected_total_discount' => 10,
),
array(
'prices_include_tax' => false,
'cart' => array(
array(
'price' => 10,
'qty' => 2,
),
array(
'price' => 10,
'qty' => 3,
),
array(
'price' => 10,
'qty' => 2,
),
),
'coupons' => array(
array(
'code' => 'test',
'discount_type' => 'fixed_cart',
'amount' => '10',
),
),
'expected_total_discount' => 10,
),
array(
'prices_include_tax' => false,
'cart' => array(
array(
'price' => 10,
'qty' => 1,
),
array(
'price' => 10,
'qty' => 1,
),
array(
'price' => 10,
'qty' => 1,
),
array(
'price' => 10,
'qty' => 1,
),
array(
'price' => 10,
'qty' => 1,
),
array(
'price' => 10,
'qty' => 1,
),
array(
'price' => 10,
'qty' => 1,
),
array(
'price' => 10,
'qty' => 1,
),
array(
'price' => 10,
'qty' => 1,
),
array(
'price' => 10,
'qty' => 1,
),
array(
'price' => 10,
'qty' => 1,
),
),
'coupons' => array(
array(
'code' => 'test',
'discount_type' => 'fixed_cart',
'amount' => '10',
),
),
'expected_total_discount' => 10,
),
array(
'prices_include_tax' => false,
'cart' => array(
array(
'price' => 1,
'qty' => 1,
),
array(
'price' => 1,
'qty' => 1,
),
array(
'price' => 1,
'qty' => 1,
),
),
'coupons' => array(
array(
'code' => 'test',
'discount_type' => 'fixed_cart',
'amount' => '1',
),
),
'expected_total_discount' => 1,
),
array(
'prices_include_tax' => false,
'cart' => array(
array(
'price' => 10,
'qty' => 2,
),
),
'coupons' => array(
array(
'code' => 'test',
'discount_type' => 'percent',
'amount' => '10',
'limit_usage_to_x_items' => 1,
),
),
'expected_total_discount' => 1,
),
array(
'prices_include_tax' => false,
'cart' => array(
array(
'price' => 10,
'qty' => 2,
),
array(
'price' => 10,
'qty' => 2,
),
),
'coupons' => array(
array(
'code' => 'test',
'discount_type' => 'percent',
'amount' => '10',
'limit_usage_to_x_items' => 1,
),
),
'expected_total_discount' => 1,
),
);
$coupon = WC_Helper_Coupon::create_coupon( 'test' );
foreach ( $tests as $test_index => $test ) {
$discounts = new WC_Discounts();
$products = array();
foreach ( $test['cart'] as $item ) {
$product = WC_Helper_Product::create_simple_product();
$product->set_regular_price( $item['price'] );
$product->set_tax_status( 'taxable' );
$product->save();
WC()->cart->add_to_cart( $product->get_id(), $item['qty'] );
$products[] = $product;
}
$discounts->set_items_from_cart( WC()->cart );
foreach ( $test['coupons'] as $coupon_props ) {
$coupon->set_props( $coupon_props );
$discounts->apply_coupon( $coupon );
}
$all_discounts = $discounts->get_discounts();
$this->assertEquals( $test['expected_total_discount'], array_sum( $all_discounts['test'] ), 'Test case ' . $test_index . ' failed (' . print_r( $test, true ) . ' - ' . print_r( $discounts->get_discounts(), true ) . ')' );
// Clean.
WC()->cart->empty_cart();
foreach ( $products as $product ) {
$product->delete( true );
}
}
WC_Tax::_delete_tax_rate( $tax_rate_id );
update_option( 'woocommerce_calc_taxes', 'no' );
$coupon->delete( true );
}
}