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amp/test/InvalidYieldErrorTest.php

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<?php
namespace Amp\Test;
use Amp\InvalidYieldError;
class InvalidYieldErrorTest extends BaseTest
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{
public function testWithInvalidGenerator()
{
/** @var \Generator $gen */
$gen = (function () {
if (false) {
yield;
}
})();
$gen->current();
$error = new InvalidYieldError($gen, "prefix message");
$this->assertSame("prefix message; NULL yielded at key NULL", $error->getMessage());
}
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public function testSubgenerator()
{
$subgen = (function () {
yield "foo" => 42;
})();
/** @var \Generator $gen */
$gen = (function () use ($subgen) {
yield from $subgen;
})();
$error = new InvalidYieldError($gen, "prefix");
$this->assertSame("prefix; integer yielded at key 'foo' on line " . (__LINE__ - 8) . " in " . __FILE__, $error->getMessage());
}
}