From 0da9b65c1f31199f5c820f83b8bd6b7c9568b35b Mon Sep 17 00:00:00 2001
From: Jackson Jarboe <122476654+JacksonJ-KC@users.noreply.github.com>
Date: Wed, 17 Dec 2025 16:27:50 -0500
Subject: [PATCH 1/2] add test case

---
 rct229/utils/std_comparisons_test.py | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/rct229/utils/std_comparisons_test.py b/rct229/utils/std_comparisons_test.py
index 7d87069a54..4988996793 100644
--- a/rct229/utils/std_comparisons_test.py
+++ b/rct229/utils/std_comparisons_test.py
@@ -13,6 +13,7 @@
 )
 
 _M2 = ureg("m2")
+_TONS = ureg("tons")
 
 
 def test__std_equal__true_with_units():
@@ -194,6 +195,10 @@ def test__std_equal_with_precision__10_false_without_units():
     assert not std_equal_with_precision(155, 150, 10)
 
 
+def test__std_equal_with_precision__1_true_with_units():
+    assert std_equal_with_precision(19.47 * _TONS, 19.452 * _TONS, 1 * _TONS)
+
+
 def test__std_conservative_outcome__true_with_units_gt():
     assert std_conservative_outcome(1.1 * _M2, 1.05 * _M2, operator.gt)
 

From 58329818a89ba0c3fb0a87980b78f09b53c6d965 Mon Sep 17 00:00:00 2001
From: Jackson Jarboe <122476654+JacksonJ-KC@users.noreply.github.com>
Date: Wed, 17 Dec 2025 16:36:00 -0500
Subject: [PATCH 2/2] highlight rounding issue

---
 rct229/utils/std_comparisons_test.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/rct229/utils/std_comparisons_test.py b/rct229/utils/std_comparisons_test.py
index 4988996793..9213d170f1 100644
--- a/rct229/utils/std_comparisons_test.py
+++ b/rct229/utils/std_comparisons_test.py
@@ -196,7 +196,7 @@ def test__std_equal_with_precision__10_false_without_units():
 
 
 def test__std_equal_with_precision__1_true_with_units():
-    assert std_equal_with_precision(19.47 * _TONS, 19.452 * _TONS, 1 * _TONS)
+    assert std_equal_with_precision(19.47 * _TONS, 19.52 * _TONS, 1 * _TONS)
 
 
 def test__std_conservative_outcome__true_with_units_gt():