1 files changed, 77 insertions, 0 deletions
diff --git a/vendor/phpunit/phpunit/src/Framework/Constraint/String/IsJson.php b/vendor/phpunit/phpunit/src/Framework/Constraint/String/IsJson.php
new file mode 100644
index 000000000..97b294617
--- /dev/null
+++ b/vendor/phpunit/phpunit/src/Framework/Constraint/String/IsJson.php
@@ -0,0 +1,77 @@
+<?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 json_decode;
+use function json_last_error;
+use function sprintf;
+
+/**
+ * @no-named-arguments Parameter names are not covered by the backward compatibility promise for PHPUnit
+ */
+final class IsJson extends Constraint
+{
+    /**
+     * Returns a string representation of the constraint.
+     */
+    public function toString(): string
+    {
+        return 'is valid JSON';
+    }
+
+    /**
+     * Evaluates the constraint for parameter $other. Returns true if the
+     * constraint is met, false otherwise.
+     *
+     * @param mixed $other value or object to evaluate
+     */
+    protected function matches($other): bool
+    {
+        if ($other === '') {
+            return false;
+        }
+
+        json_decode($other);
+
+        if (json_last_error()) {
+            return false;
+        }
+
+        return true;
+    }
+
+    /**
+     * Returns the description of the failure.
+     *
+     * The beginning of failure messages is "Failed asserting that" in most
+     * cases. This method should return the second part of that sentence.
+     *
+     * @param mixed $other evaluated value or object
+     *
+     * @throws \SebastianBergmann\RecursionContext\InvalidArgumentException
+     */
+    protected function failureDescription($other): string
+    {
+        if ($other === '') {
+            return 'an empty string is valid JSON';
+        }
+
+        json_decode($other);
+        $error = (string) JsonMatchesErrorMessageProvider::determineJsonError(
+            (string) json_last_error()
+        );
+
+        return sprintf(
+            '%s is valid JSON (%s)',
+            $this->exporter()->shortenedExport($other),
+            $error
+        );
+    }
+}