From aad0682a404814a03d47efb8bcb88c7b14f8bcdb Mon Sep 17 00:00:00 2001
From: vulppine <vulppine@gmail.com>
Date: Sat, 2 Oct 2021 08:46:09 -0700
Subject: [PATCH] seq: Adds testing for hexadecimal integer parsing

---
 tests/by-util/test_seq.rs | 40 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 40 insertions(+)

diff --git a/tests/by-util/test_seq.rs b/tests/by-util/test_seq.rs
index 27b5f99bc..2d2ea5344 100644
--- a/tests/by-util/test_seq.rs
+++ b/tests/by-util/test_seq.rs
@@ -1,6 +1,46 @@
 use crate::common::util::*;
 use std::io::Read;
 
+#[test]
+fn test_hex_rejects_posneg_after_identifier() {
+    new_ucmd!()
+        .args(&["0x-123ABC"])
+        .fails()
+        .no_stdout()
+        .stderr_contains("invalid hexadecimal argument: '0x-123ABC'")
+        .stderr_contains("for more information.");
+    new_ucmd!()
+        .args(&["0x+123ABC"])
+        .fails()
+        .no_stdout()
+        .stderr_contains("invalid hexadecimal argument: '0x+123ABC'")
+        .stderr_contains("for more information.");
+    new_ucmd!()
+        .args(&["-0x-123ABC"])
+        .fails()
+        .no_stdout()
+        .stderr_contains("invalid hexadecimal argument: '-0x-123ABC'")
+        .stderr_contains("for more information.");
+    new_ucmd!()
+        .args(&["-0x+123ABC"])
+        .fails()
+        .no_stdout()
+        .stderr_contains("invalid hexadecimal argument: '-0x+123ABC'")
+        .stderr_contains("for more information.");
+}
+
+#[test]
+fn test_hex_lowercase_uppercase() {
+    new_ucmd!()
+        .args(&["0xa", "0xA"])
+        .succeeds()
+        .stdout_is("10\n");
+    new_ucmd!()
+        .args(&["0Xa", "0XA"])
+        .succeeds()
+        .stdout_is("10\n");
+}
+
 #[test]
 fn test_rejects_nan() {
     let ts = TestScenario::new(util_name!());