1 files changed, 37 insertions, 0 deletions
diff --git a/lib/cbrt_test.go b/lib/cbrt_test.go
new file mode 100644
index 0000000..36bcc79
--- /dev/null
+++ b/lib/cbrt_test.go
@@ -0,0 +1,37 @@
+// Copyright © 2022 siddharth ravikumar <s@ricketyspace.net>
+// SPDX-License-Identifier: ISC
+
+package lib
+
+import (
+	"math/big"
+	"testing"
+)
+
+func TestBigCubeRoot(t *testing.T) {
+	a := big.NewFloat(612)
+	acr := BigCubeRoot(a)
+	if acr == nil {
+		t.Errorf("Could not find cube root of %v\n", a)
+		return
+	}
+	expected := big.NewFloat(8.490184748)
+	if big.NewFloat(0).Sub(acr, expected).Cmp(bigCubeRootTolerance) != -1 {
+		t.Errorf("Could not find cube root of %v (%v)\n", a, acr)
+		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
+	}
+}