diff --git a/registry/numeric/helpers_test.go b/registry/numeric/helpers_test.go
new file mode 100644
index 0000000..dbdafb4
--- /dev/null
+++ b/registry/numeric/helpers_test.go
@@ -0,0 +1,27 @@
+package numeric
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestOperateNumeric(t *testing.T) {
+	var tests = []struct {
+		values   []any
+		op       numericOperation
+		initial  any
+		expected any
+	}{
+		{[]any{1, 2}, func(a, b float64) float64 { return a + b }, 0, 3},
+		{[]any{1.5, 2.5}, func(a, b float64) float64 { return a - b }, 0, -1.0},
+		{[]any{1.5, 2.5}, func(a, b float64) float64 { return a * b }, 1, 3.75},
+		{[]any{1.5, 2.5}, func(a, b float64) float64 { return a / b }, 1, 0.6},
+		{[]any{uint(1), uint(2)}, func(a, b float64) float64 { return a + b }, uint(0), uint(3)},
+	}
+
+	for _, test := range tests {
+		result := operateNumeric(test.values, test.op, test.initial)
+		assert.Equal(t, test.expected, result, "operateNumeric(%v, %v, %v) returned %v, expected %v", test.values, test.op, test.initial, result, test.expected)
+	}
+}