add subtraction tests for overflow

SamHerts · May 21, 2024 · 898a2d1 · 898a2d1
1 parent 0b5e6c1
commit 898a2d1
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/tests/test.cpp b/tests/test.cpp
@@ -55,9 +55,11 @@ TEST(BigInt_test, Subtraction_Tests)
     bigint small_number = 9955;
     bigint huge_number_1 = "123456789";
     bigint huge_number_2 = "10000000000000000000";
+    bigint min_ll = LLONG_MIN;
     ASSERT_EQ(bigint("30") - bigint("20"), "10");
     ASSERT_EQ(small_number - 5, 9950);
     ASSERT_EQ(small_number - small_number, 0);
+    ASSERT_EQ(min_ll - 1, bigint("-9223372036854775809"));
     ASSERT_EQ(huge_number_1 - 1, "123456788");
     ASSERT_EQ(huge_number_2 - 1, "9999999999999999999");
 }