1 files changed, 63 insertions, 0 deletions
diff --git a/vendor/phpunit/phpunit/src/Framework/Constraint/Operator/LogicalXor.php b/vendor/phpunit/phpunit/src/Framework/Constraint/Operator/LogicalXor.php
new file mode 100644
index 000000000..fbdb479bc
--- /dev/null
+++ b/vendor/phpunit/phpunit/src/Framework/Constraint/Operator/LogicalXor.php
@@ -0,0 +1,63 @@
+<?php declare(strict_types=1);
+/*
+ * This file is part of PHPUnit.
+ *
+ * (c) Sebastian Bergmann <[email protected]>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+namespace PHPUnit\Framework\Constraint;
+
+use function array_reduce;
+use function array_shift;
+
+/**
+ * @no-named-arguments Parameter names are not covered by the backward compatibility promise for PHPUnit
+ */
+final class LogicalXor extends BinaryOperator
+{
+    /**
+     * Returns the name of this operator.
+     */
+    public function operator(): string
+    {
+        return 'xor';
+    }
+
+    /**
+     * Returns this operator's precedence.
+     *
+     * @see https://www.php.net/manual/en/language.operators.precedence.php.
+     */
+    public function precedence(): int
+    {
+        return 23;
+    }
+
+    /**
+     * Evaluates the constraint for parameter $other. Returns true if the
+     * constraint is met, false otherwise.
+     *
+     * @param mixed $other value or object to evaluate
+     */
+    public function matches($other): bool
+    {
+        $constraints = $this->constraints();
+
+        $initial = array_shift($constraints);
+
+        if ($initial === null) {
+            return false;
+        }
+
+        return array_reduce(
+            $constraints,
+            static function (bool $matches, Constraint $constraint) use ($other): bool
+            {
+                return $matches xor $constraint->evaluate($other, '', true);
+            },
+            $initial->evaluate($other, '', true)
+        );
+    }
+}