diff --git a/tests/unit_tests/get_xtype_from_string.cpp b/tests/unit_tests/get_xtype_from_string.cpp
index 5bcb74df..0a520c16 100644
--- a/tests/unit_tests/get_xtype_from_string.cpp
+++ b/tests/unit_tests/get_xtype_from_string.cpp
@@ -151,10 +151,10 @@ TEST_neg(int16_t, "+32768"); // 2^15
 TEST_neg(int16_t, "-32769"); // -2^15 - 1
 TEST_neg(int16_t, "");
 
-TEST_pos(int32_t,  2'147'483'647,  "2147483647"); // 2^31 - 1
-TEST_pos(int32_t, -2'147'483'648, "-2147483648"); // -2^31
-TEST_pos(int32_t,              0,          "-0");
-TEST_pos(int32_t,              0,          "+0");
+TEST_pos(int32_t,      2'147'483'647,  "2147483647"); // 2^31 - 1
+TEST_pos(int32_t, -2'147'483'647 - 1, "-2147483648"); // -2^31
+TEST_pos(int32_t,                  0,          "-0");
+TEST_pos(int32_t,                  0,          "+0");
 
 TEST_neg(int32_t, "-2147483649");
 TEST_neg(int32_t,  "2147483648");