Chris@13: <?php declare(strict_types=1);
Chris@13: 
Chris@13: namespace PhpParser;
Chris@13: 
Chris@17: class JsonDecoderTest extends \PHPUnit\Framework\TestCase
Chris@13: {
Chris@13:     public function testRoundTrip() {
Chris@13:         $code = <<<'PHP'
Chris@13: <?php
Chris@13: // comment
Chris@13: /** doc comment */
Chris@13: function functionName(&$a = 0, $b = 1.0) {
Chris@13:     echo 'Foo';
Chris@13: }
Chris@13: PHP;
Chris@13: 
Chris@13:         $parser = new Parser\Php7(new Lexer());
Chris@13:         $stmts = $parser->parse($code);
Chris@13:         $json = json_encode($stmts);
Chris@13: 
Chris@13:         $jsonDecoder = new JsonDecoder();
Chris@13:         $decodedStmts = $jsonDecoder->decode($json);
Chris@13:         $this->assertEquals($stmts, $decodedStmts);
Chris@13:     }
Chris@13: 
Chris@13:     /** @dataProvider provideTestDecodingError */
Chris@13:     public function testDecodingError($json, $expectedMessage) {
Chris@13:         $jsonDecoder = new JsonDecoder();
Chris@13:         $this->expectException(\RuntimeException::class);
Chris@13:         $this->expectExceptionMessage($expectedMessage);
Chris@13:         $jsonDecoder->decode($json);
Chris@13:     }
Chris@13: 
Chris@13:     public function provideTestDecodingError() {
Chris@13:         return [
Chris@13:             ['???', 'JSON decoding error: Syntax error'],
Chris@13:             ['{"nodeType":123}', 'Node type must be a string'],
Chris@13:             ['{"nodeType":"Name","attributes":123}', 'Attributes must be an array'],
Chris@13:             ['{"nodeType":"Comment"}', 'Comment must have text'],
Chris@13:             ['{"nodeType":"xxx"}', 'Unknown node type "xxx"'],
Chris@13:         ];
Chris@13:     }
Chris@13: }