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ReceiptTest.php
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120 lines (97 loc) · 2.82 KB
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<?php
namespace TDD\Test;
require dirname(dirname(__FILE__)).DIRECTORY_SEPARATOR.'vendor'.DIRECTORY_SEPARATOR.'autoload.php';
use PHPUnit\Framework\TestCase;
use TDD\Receipt;
class ReceiptTest extends TestCase{
private $receipt;
private $formatter;
public function setUp()
{
$this->formatter = $this->getMockBuilder('TDD\Formatter')
->setMethods(['currencyAmount'])
->getMock();
$this->formatter->expects($this->any())
->method('currencyAmount')
->with($this->anything())
->will($this->returnArgument(0));
$this->receipt = new Receipt($this->formatter);
}
public function tearDown()
{
unset($this->receipt);
}
/**
* @dataProvider provideSubTotal
*/
public function testSubTotal($items, $expected)
{
$coupon = null;
$output = $this->receipt->subTotal($items, $coupon);
$this->assertEquals(
$expected,
$output,
"When summing the total should equals 10 {$expected}"
);
}
/**
* The data provider for testSubTotal
*/
public function provideSubTotal()
{
return [
[[1, 2, 5, 8], 16],
[[-1, 2, 5, 8], 14],
[[1, 2, 8], 11],
];
}
public function testSubTotalAndCoupon()
{
$items = [0, 2, 5, 8];
$coupon = 0.20;
$output = $this->receipt->subTotal($items, $coupon);
$this->assertEquals(
12,
$output,
'When summing the total should equals 12'
);
}
public function testSubTotalException()
{
$items = [0, 2, 5, 8];
$coupon = 1.20;
$this->expectException('BadMethodCallException');
$this->receipt->subTotal($items, $coupon);
}
public function testPostTaxTotal()
{
$items = [1, 2, 5, 8];
$tax = 0.20;
$coupon = null;
$receipt = $this->getMockBuilder('TDD\Receipt')
->setMethods(['tax', 'subTotal'])
->setConstructorArgs([$this->formatter])
->getMock();
$receipt->expects($this->once())
->method('subTotal')
->with($items, $coupon)
->will($this->returnValue(10.00));
$receipt->expects($this->once())
->method('tax')
->with(10.00)
->will($this->returnValue(1.00));
$result = $receipt->postTaxTotal([1,2,5,8], null);
$this->assertEquals(11.00, $result);
}
public function testTax()
{
$inputAmount = 10.00;
$this->receipt->tax = 0.10;
$output = $this->receipt->tax($inputAmount);
$this->assertEquals(
1.00,
$output,
'The Tax calculation should equal 1.00'
);
}
}