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<?php |
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namespace Hateoas\Tests\Expression; |
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use Hateoas\Expression\ExpressionEvaluator; |
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use Hateoas\Expression\LinkExpressionFunction; |
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use Symfony\Component\ExpressionLanguage\ExpressionLanguage; |
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class LinkExpressionFunctionTest extends \PHPUnit_Framework_TestCase |
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{ |
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public function testEvaluate() |
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{ |
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$object = new \StdClass(); |
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$linkHelperMock = $this->mockHelper('/foo', $object, 'self', false); |
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$expressionEvaluator = new ExpressionEvaluator(new ExpressionLanguage()); |
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$expressionEvaluator->registerFunction(new LinkExpressionFunction($linkHelperMock)); |
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$this->assertEquals( |
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'/foo', |
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$expressionEvaluator->evaluate('expr(link(object, "self", false))', $object) |
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); |
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} |
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public function testCompile() |
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{ |
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$object = new \StdClass(); |
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$linkHelperMock = $this->mockHelper('/foo', $object, 'self', false); |
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$expressionLanguage = new ExpressionLanguage(); |
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$expressionEvaluator = new ExpressionEvaluator($expressionLanguage); |
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$expressionEvaluator->registerFunction(new LinkExpressionFunction($linkHelperMock)); |
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$compiledExpression = $expressionLanguage->compile('link(object, "self", false)', array('object', 'link_helper')); |
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// setup variables for expression eval |
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$object = $object; |
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$link_helper = $linkHelperMock; |
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$this->assertEquals('/foo', eval(sprintf('return %s;', $compiledExpression))); |
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} |
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/** |
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* @param string $result |
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* @param \stdClass $expectedObject |
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* @param string $expectedRel |
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* @param boolean $expectedAbsolute |
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* |
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* @return \Hateoas\Helper\LinkHelper |
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*/ |
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private function mockHelper($result, $expectedObject, $expectedRel, $expectedAbsolute) |
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{ |
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$linkHelperMock = $this |
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->getMockBuilder('Hateoas\Helper\LinkHelper') |
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->disableOriginalConstructor() |
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->getMock() |
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; |
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$linkHelperMock |
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->expects($this->once()) |
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->method('getLinkHref') |
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->will($this->returnValue('/foo')) |
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->with($expectedObject, $expectedRel, $expectedAbsolute) |
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; |
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return $linkHelperMock; |
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} |
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} |
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This checks looks for cases where a variable has been assigned to itself.
This assignement can be removed without consequences.