From fe5c278fcac16ac51257e47e35d898659b009164 Mon Sep 17 00:00:00 2001
From: Feoramund <161657516+Feoramund@users.noreply.github.com>
Date: Sun, 9 Jun 2024 20:40:19 -0400
Subject: [PATCH] Add test for `core:math/big` permutation & combination procs

---
 tests/core/math/big/test_core_math_big.odin | 37 +++++++++++++++++++++
 1 file changed, 37 insertions(+)
 create mode 100644 tests/core/math/big/test_core_math_big.odin

diff --git a/tests/core/math/big/test_core_math_big.odin b/tests/core/math/big/test_core_math_big.odin
new file mode 100644
index 000000000..9a1e7b01b
--- /dev/null
+++ b/tests/core/math/big/test_core_math_big.odin
@@ -0,0 +1,37 @@
+package test_core_math_big
+
+import "core:math/big"
+import "core:testing"
+
+@(test)
+test_permutations_and_combinations :: proc(t: ^testing.T) {
+	{
+		calc, exp := &big.Int{}, &big.Int{}
+		defer big.destroy(calc, exp)
+		big.permutations_without_repetition(calc, 9000, 10)
+		big.int_atoi(exp, "3469387884476822917768284664849390080000")
+		equals, error := big.equals(calc, exp)
+		testing.expect(t, equals)
+		testing.expect_value(t, error, nil)
+	}
+
+	{
+		calc, exp := &big.Int{}, &big.Int{}
+		defer big.destroy(calc, exp)
+		big.combinations_with_repetition(calc, 9000, 10)
+		big.int_atoi(exp, "965678962435231708695393645683400")
+		equals, error := big.equals(calc, exp)
+		testing.expect(t, equals)
+		testing.expect_value(t, error, nil)
+	}
+
+	{
+		calc, exp := &big.Int{}, &big.Int{}
+		defer big.destroy(calc, exp)
+		big.combinations_without_repetition(calc, 9000, 10)
+		big.int_atoi(exp, "956070294443568925751842114431600")
+		equals, error := big.equals(calc, exp)
+		testing.expect(t, equals)
+		testing.expect_value(t, error, nil)
+	}
+}