From 574877c74494cff56aafebc7ecb72d968eb1c932 Mon Sep 17 00:00:00 2001
From: Justus Kuhlmann <justus@kuhl-mann.de>
Date: Mon, 1 Dec 2025 18:43:47 +0100
Subject: [PATCH] add two more trivial tests

---
 tests/tools_test.py | 18 ++++++++++++------
 1 file changed, 12 insertions(+), 6 deletions(-)

diff --git a/tests/tools_test.py b/tests/tools_test.py
index 71c5267..ee76f1c 100644
--- a/tests/tools_test.py
+++ b/tests/tools_test.py
@@ -4,15 +4,21 @@ from corrlib import tools as tl
 
 
 def test_m2k():
-    assert tl.m2k(0.1) == 1/(2*0.1+8)
-    assert tl.m2k(0.5) == 1/(2*0.5+8)
-    assert tl.m2k(1.0) == 1/(2*1.0+8)
+    for m in [0.1, 0.5, 1.0]:
+        expected_k = 1 / (2 * m + 8)
+        assert tl.m2k(m) == expected_k
 
 
 def test_k2m():
-    assert tl.k2m(0.1) == (1/(2*0.1))-4
-    assert tl.k2m(0.5) == (1/(2*0.5))-4
-    assert tl.k2m(1.0) == (1/(2*1.0))-4
+    for m in [0.1, 0.5, 1.0]:
+        assert tl.k2m(m) == (1/(2*m))-4
+
+
+def test_k2m_m2k():
+    for m in [0.1, 0.5, 1.0]:
+        k = tl.m2k(m)
+        m_converted = tl.k2m(k)
+        assert abs(m - m_converted) < 1e-9
 
 
 def test_str2list():