From 3063d69fd53f075d06318c0b19a7ddd700fe57a6 Mon Sep 17 00:00:00 2001
From: Alisa Sireneva <me@purplesyringa.moe>
Date: Mon, 29 Jul 2024 13:23:01 +0300
Subject: [PATCH] Add better tests

---
 tests/test.rs | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/tests/test.rs b/tests/test.rs
index 71087162b..6923e6e38 100644
--- a/tests/test.rs
+++ b/tests/test.rs
@@ -2497,3 +2497,22 @@ fn hash_positive_and_negative_zero() {
         assert_eq!(rand.hash_one(k1), rand.hash_one(k2));
     }
 }
+
+#[test]
+fn test_control_character_search() {
+    // Different space circumstances
+    for n in 0..16 {
+        for m in 0..16 {
+            test_parse_err::<String>(&[(
+                &format!("\"{}\n{}\"", ".".repeat(n), ".".repeat(m)),
+                "control character (\\u0000-\\u001F) found while parsing a string at line 2 column 0",
+            )]);
+        }
+    }
+
+    // Multiple occurrences
+    test_parse_err::<String>(&[(
+        &"\"\t\n\r\"",
+        "control character (\\u0000-\\u001F) found while parsing a string at line 1 column 2",
+    )]);
+}