diff core/tests/Drupal/Tests/Component/Utility/CryptRandomFallbackTest.php @ 0:4c8ae668cc8c

Initial import (non-working)

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/core/tests/Drupal/Tests/Component/Utility/CryptRandomFallbackTest.php	Wed Nov 29 16:09:58 2017 +0000
@@ -0,0 +1,71 @@
+<?php
+
+namespace Drupal\Tests\Component\Utility;
+
+use Drupal\Component\Utility\Crypt;
+use PHPUnit\Framework\TestCase;
+
+/**
+ * Tests random byte generation fallback exception situations.
+ *
+ * @group Utility
+ *
+ * @runTestsInSeparateProcesses
+ *
+ * @coversDefaultClass \Drupal\Component\Utility\Crypt
+ */
+class CryptRandomFallbackTest extends TestCase {
+
+  static protected $functionCalled = 0;
+
+  /**
+   * Allows the test to confirm that the namespaced random_bytes() was called.
+   */
+  public static function functionCalled() {
+    static::$functionCalled++;
+  }
+
+  /**
+   * Tests random byte generation using the fallback generator.
+   *
+   * If the call to random_bytes() throws an exception, Crypt::random_bytes()
+   * should still return a useful string of random bytes.
+   *
+   * @covers ::randomBytes
+   *
+   * @see \Drupal\Tests\Component\Utility\CryptTest::testRandomBytes()
+   */
+  public function testRandomBytesFallback() {
+    // This loop is a copy of
+    // \Drupal\Tests\Component\Utility\CryptTest::testRandomBytes().
+    for ($i = 0; $i < 10; $i++) {
+      $count = rand(10, 10000);
+      // Check that different values are being generated.
+      $this->assertNotEquals(Crypt::randomBytes($count), Crypt::randomBytes($count));
+      // Check the length.
+      $this->assertEquals($count, strlen(Crypt::randomBytes($count)));
+    }
+    $this->assertEquals(30, static::$functionCalled, 'The namespaced function was called the expected number of times.');
+  }
+
+}
+
+namespace Drupal\Component\Utility;
+
+use Drupal\Tests\Component\Utility\CryptRandomFallbackTest;
+
+/**
+ * Defines a function in same namespace as Drupal\Component\Utility\Crypt.
+ *
+ * Forces throwing an exception in this test environment because the function
+ * in the namespace is used in preference to the global function.
+ *
+ * @param int $count
+ *   Matches the global function definition.
+ *
+ * @throws \Exception
+ */
+function random_bytes($count) {
+  CryptRandomFallbackTest::functionCalled();
+  throw new \Exception($count);
+}