Add ploy test.

poly.test.ts

@@ -0,0 +1,22 @@
+import { poly } from './poly'; // Import your poly function from your implementation file
+
+describe('poly', () => {
+    it('should evaluate a polynomial correctly', () => {
+        // Define input, coefficients, and expected output
+        const input = 3; // Input value
+        const coefficients = [2, 1, 0.5]; // Coefficients for the polynomial 2x^2 + x + 0.5
+        const expectedOutput = 19.5; // Expected output for x=3
+
+        // Convert input and coefficients to Fields (assuming you have a way to represent numbers as Fields)
+        const inputField = ...; // Convert input to a Field
+        const coefficientsField = coefficients.map((c) => ...); // Convert coefficients to Fields
+
+        // Call the poly function
+        const result = poly(inputField, coefficientsField);
+
+        // Assert that the result matches the expected output
+        expect(result.toNumber()).toEqual(expectedOutput);
+    });
+
+    // Add more test cases as needed
+});