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authorsiddharth ravikumar <s@ricketyspace.net>2022-11-20 16:07:47 -0500
committersiddharth ravikumar <s@ricketyspace.net>2022-11-20 16:07:47 -0500
commit73b0bec6c8c2aaf0f8b4e22a60a925881b202a15 (patch)
tree3482d1c7cae3fc89cd1924092b025b40eba1f93e /lib/cbrt_test.go
parentc14e8eda830099f30e1a9aeb2fd4fdcef9cca94a (diff)
lib: add `BigIntCubeRoot`
Diffstat (limited to 'lib/cbrt_test.go')
-rw-r--r--lib/cbrt_test.go14
1 files changed, 14 insertions, 0 deletions
diff --git a/lib/cbrt_test.go b/lib/cbrt_test.go
index a5722c8..6b3c9f3 100644
--- a/lib/cbrt_test.go
+++ b/lib/cbrt_test.go
@@ -21,3 +21,17 @@ func TestBigCubeRoot(t *testing.T) {
return
}
}
+
+func TestBigIntCubeRoot(t *testing.T) {
+ a := big.NewInt(19683)
+ acr := BigIntCubeRoot(a)
+ if acr == nil {
+ t.Errorf("Could not find cube root of %v\n", a)
+ return
+ }
+ expected := big.NewInt(27)
+ if big.NewInt(0).Sub(acr, expected).Cmp(big.NewInt(0)) != 0 {
+ t.Errorf("Could not find cube root of %v (%v)\n", a, acr)
+ return
+ }
+}