diff --git a/proof-input/tests/sampling.rs b/proof-input/tests/sampling.rs
index 26bf34c..e1e9c21 100644
--- a/proof-input/tests/sampling.rs
+++ b/proof-input/tests/sampling.rs
@@ -1,70 +1,91 @@
-use plonky2::hash::poseidon::PoseidonHash;
-use plonky2::plonk::config::PoseidonGoldilocksConfig;
+use plonky2::plonk::circuit_data::CircuitConfig;
+use plonky2::plonk::config::{AlgebraicHasher, GenericConfig, Hasher, PoseidonGoldilocksConfig};
+use plonky2::plonk::proof::ProofWithPublicInputs;
 use plonky2_field::goldilocks_field::GoldilocksField;
+use codex_plonky2_circuits::circuit_trait::Plonky2Circuit;
+use codex_plonky2_circuits::circuits::sample_cells::SampleCircuit;
+use proof_input::input_generator::InputGenerator;
+use proof_input::params::Params;
 
 // types used in all tests
 type F = GoldilocksField;
 const D: usize = 2;
-type H = PoseidonHash;
 type C = PoseidonGoldilocksConfig;
 
+fn test_sampling_proof<H: Hasher<F>>(){
+    let input_gen = InputGenerator::<F,D, H>::default();
+    let w = input_gen.gen_testing_circuit_input();
+    assert!(input_gen.verify_circuit_input(w));
+}
+
+fn test_sampling_proof_in_circuit<C: GenericConfig<D, F = F>, H: AlgebraicHasher<F>>(config: CircuitConfig) -> anyhow::Result<()> {
+    // get input
+    let mut params = Params::default();
+    params.set_n_samples(10);
+    let input_params = params.input_params;
+    let circuit_params = params.circuit_params;
+    let input_gen = InputGenerator::<F,D,H>::new(input_params);
+    let circ_input = input_gen.gen_testing_circuit_input();
+
+    // build the circuit
+    let circ = SampleCircuit::<F,D,H>::new(circuit_params.clone());
+    let (targets, data) = circ.build(config)?;
+
+    // separate the prover and verifier
+    let verifier_data = data.verifier_data();
+    let prover_data = data.prover_data();
+
+    // Prove the circuit using the circuit input
+    let proof_with_pis: ProofWithPublicInputs<F, C, D> = circ.prove(&targets, &circ_input, &prover_data)?;
+
+    // Verify the proof
+    assert!(
+        verifier_data.verify(proof_with_pis).is_ok(),
+        "Merkle proof verification failed"
+    );
+
+    Ok(())
+}
 
 #[cfg(test)]
-mod sampling_tests {
+mod poseidon2_sampling_tests {
     use super::*;
-    use proof_input::input_generator::InputGenerator;
+    use plonky2_poseidon2::poseidon2_hash::poseidon2::Poseidon2Hash;
+
+    type H = Poseidon2Hash;
 
     // Test sample cells (non-circuit)
     #[test]
-    fn test_gen_verify_proof(){
-        let input_gen = InputGenerator::<F,D,H>::default();
-        let w = input_gen.gen_testing_circuit_input();
-        assert!(input_gen.verify_circuit_input(w));
+    fn test_poseidon2_sampling_proof(){
+        test_sampling_proof::<H>();
+    }
+
+    // Test sample cells in-circuit for a selected slot
+    #[test]
+    fn test_poseidon2_sampling_proof_in_circuit() -> anyhow::Result<()> {
+        let config = CircuitConfig::standard_recursion_config();
+        test_sampling_proof_in_circuit::<C,H>(config)
     }
 }
 
 #[cfg(test)]
-mod sampling_circuit_tests {
+mod monolith_sampling_tests {
+    use plonky2_monolith::gates::generate_config_for_monolith_gate;
     use super::*;
-    use std::time::Instant;
-    use plonky2::plonk::proof::ProofWithPublicInputs;
-    use codex_plonky2_circuits::circuit_trait::Plonky2Circuit;
-    use codex_plonky2_circuits::circuits::sample_cells::SampleCircuit;
-    use proof_input::input_generator::InputGenerator;
-    use proof_input::params::Params;
+    use plonky2_monolith::monolith_hash::MonolithHash;
+
+    type H = MonolithHash;
+
+    // Test sample cells (non-circuit)
+    #[test]
+    fn test_monolith_sampling_proof(){
+        test_sampling_proof::<H>();
+    }
 
     // Test sample cells in-circuit for a selected slot
     #[test]
-    fn test_proof_in_circuit() -> anyhow::Result<()> {
-        // get input
-        let mut params = Params::default();
-        params.set_n_samples(10);
-        let input_params = params.input_params;
-        let circuit_params = params.circuit_params;
-        let input_gen = InputGenerator::<F,D,H>::new(input_params);
-        let circ_input = input_gen.gen_testing_circuit_input();
-
-        // build the circuit
-        let circ = SampleCircuit::<F,D,H>::new(circuit_params.clone());
-        let (targets, data) = circ.build_with_standard_config()?;
-        println!("circuit size = {:?}", data.common.degree_bits());
-
-        // separate the prover and verifier
-        let verifier_data = data.verifier_data();
-        let prover_data = data.prover_data();
-
-        // Prove the circuit using the circuit input
-        let start_time = Instant::now();
-        let proof_with_pis: ProofWithPublicInputs<F, C, D> = circ.prove(&targets, &circ_input, &prover_data)?;
-        println!("prove_time = {:?}", start_time.elapsed());
-
-        // Verify the proof
-        assert!(
-            verifier_data.verify(proof_with_pis).is_ok(),
-            "Merkle proof verification failed"
-        );
-
-        Ok(())
+    fn test_monolith_sampling_proof_in_circuit() -> anyhow::Result<()> {
+        let config = generate_config_for_monolith_gate::<F, D>();
+        test_sampling_proof_in_circuit::<C,H>(config)
     }
-
 }
\ No newline at end of file