From 908c8c1f154c198cf2e17d06dae64165f17d9d35 Mon Sep 17 00:00:00 2001
From: Andreas Braun <git@alcaeus.org>
Date: Fri, 9 Aug 2019 09:23:13 +0200
Subject: [PATCH] Add compatibility trait for PHPUnit constraint classes

---
 .../Bridge/PhpUnit/ConstraintTrait.php        | 28 ++++++
 .../PhpUnit/Legacy/ConstraintTraitForV6.php   | 99 +++++++++++++++++++
 .../PhpUnit/Legacy/ConstraintTraitForV7.php   | 68 +++++++++++++
 3 files changed, 195 insertions(+)
 create mode 100644 src/Symfony/Bridge/PhpUnit/ConstraintTrait.php
 create mode 100644 src/Symfony/Bridge/PhpUnit/Legacy/ConstraintTraitForV6.php
 create mode 100644 src/Symfony/Bridge/PhpUnit/Legacy/ConstraintTraitForV7.php

diff --git a/src/Symfony/Bridge/PhpUnit/ConstraintTrait.php b/src/Symfony/Bridge/PhpUnit/ConstraintTrait.php
new file mode 100644
index 0000000000000..64b24ee166858
--- /dev/null
+++ b/src/Symfony/Bridge/PhpUnit/ConstraintTrait.php
@@ -0,0 +1,28 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Bridge\PhpUnit;
+
+use PHPUnit\Framework\Constraint\Constraint;
+use ReflectionClass;
+
+$r = new ReflectionClass(Constraint::class);
+if (\PHP_VERSION_ID < 70000 || !$r->getMethod('matches')->hasReturnType()) {
+    trait ConstraintTrait
+    {
+        use Legacy\ConstraintTraitForV6;
+    }
+} else {
+    trait ConstraintTrait
+    {
+        use Legacy\ConstraintTraitForV7;
+    }
+}
diff --git a/src/Symfony/Bridge/PhpUnit/Legacy/ConstraintTraitForV6.php b/src/Symfony/Bridge/PhpUnit/Legacy/ConstraintTraitForV6.php
new file mode 100644
index 0000000000000..64942d8dfe711
--- /dev/null
+++ b/src/Symfony/Bridge/PhpUnit/Legacy/ConstraintTraitForV6.php
@@ -0,0 +1,99 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Bridge\PhpUnit\Legacy;
+
+use SebastianBergmann\Exporter\Exporter;
+
+/**
+ * @internal
+ */
+trait ConstraintTraitForV6
+{
+    /**
+     * @return int
+     */
+    public function count()
+    {
+        return $this->doCount();
+    }
+
+    /**
+     * @return string
+     */
+    public function toString()
+    {
+        return $this->doToString();
+    }
+
+    /**
+     * @param mixed $other
+     *
+     * @return string
+     */
+    protected function additionalFailureDescription($other)
+    {
+        return $this->doAdditionalFailureDescription($other);
+    }
+
+    /**
+     * @return Exporter
+     */
+    protected function exporter()
+    {
+        return $this->exporter;
+    }
+
+    /**
+     * @param mixed $other
+     *
+     * @return string
+     */
+    protected function failureDescription($other)
+    {
+        return $this->doFailureDescription($other);
+    }
+
+    /**
+     * @param mixed $other
+     *
+     * @return bool
+     */
+    protected function matches($other)
+    {
+        return $this->doMatches($other);
+    }
+
+    private function doAdditionalFailureDescription($other)
+    {
+        return '';
+    }
+
+    private function doCount()
+    {
+        return 1;
+    }
+
+    private function doFailureDescription($other)
+    {
+        return $this->exporter()->export($other).' '.$this->toString();
+    }
+
+    private function doMatches($other)
+    {
+        return false;
+    }
+
+    private function doToString()
+    {
+        return '';
+    }
+}
diff --git a/src/Symfony/Bridge/PhpUnit/Legacy/ConstraintTraitForV7.php b/src/Symfony/Bridge/PhpUnit/Legacy/ConstraintTraitForV7.php
new file mode 100644
index 0000000000000..48c79a76dd0cf
--- /dev/null
+++ b/src/Symfony/Bridge/PhpUnit/Legacy/ConstraintTraitForV7.php
@@ -0,0 +1,68 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Bridge\PhpUnit\Legacy;
+
+/**
+ * @internal
+ */
+trait ConstraintTraitForV7
+{
+    public function count(): int
+    {
+        return $this->doCount();
+    }
+
+    public function toString(): string
+    {
+        return $this->doToString();
+    }
+
+    protected function additionalFailureDescription($other): string
+    {
+        return $this->doAdditionalFailureDescription($other);
+    }
+
+    protected function failureDescription($other): string
+    {
+        return $this->doFailureDescription($other);
+    }
+
+    protected function matches($other): bool
+    {
+        return $this->doMatches($other);
+    }
+
+    private function doAdditionalFailureDescription($other): string
+    {
+        return '';
+    }
+
+    private function doCount(): int
+    {
+        return 1;
+    }
+
+    private function doFailureDescription($other): string
+    {
+        return $this->exporter()->export($other).' '.$this->toString();
+    }
+
+    private function doMatches($other): bool
+    {
+        return false;
+    }
+
+    private function doToString(): string
+    {
+        return '';
+    }
+}

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