Add truly random numbers and use them in places where randomness matters

1 files changed, 20 insertions, 0 deletions

diff --git a/_test/tests/inc/auth_random.test.php b/_test/tests/inc/auth_random.test.php
new file mode 100644
index 000000000..f380eba53
--- /dev/null
+++ b/_test/tests/inc/auth_random.test.php
@@ -0,0 +1,20 @@
+<?php
+
+/**
+ * Tests the random generator functions
+ */
+class auth_random_test extends DokuWikiTest {
+    function testRandomRange() {
+        $rand = auth_random(300, 2000);
+        $this->assertTrue($rand <= 2000, 'The generated number was above the limit');
+        $this->assertTrue($rand >= 300, 'The generate number was too low');
+    }
+
+    function testLargeRandoms() {
+        $min = (1 << 30);
+        $max = $min + (1 << 33) + 17;
+        $rand = auth_random($min, $max);
+        $this->assertTrue($rand >= $min, 'The generated number was too low');
+        $this->assertTrue($rand <= $max, 'The generated number was too high');
+    }
+}