diff --git a/Makefile b/Makefile
index 074b444eb..f85df16eb 100644
--- a/Makefile
+++ b/Makefile
@@ -49,7 +49,7 @@ $(BINS): token_lists contracts $(PROOFS_BIN) $(BINDEPS)
 	RUSTFLAGS="$(RUSTFLAGS)" $(CARGO) build --all-features --release --package $@
 	cp -f target/release/$@ $@
 
-check: token_lists zkas $(PROOFS_BIN)
+check: token_lists zkas $(PROOFS_BIN) contracts
 	RUSTFLAGS="$(RUSTFLAGS)" $(CARGO) hack check --release --feature-powerset --all
 
 fix: token_lists zkas $(PROOFS_BIN)
@@ -62,8 +62,9 @@ rustdoc: token_lists zkas
 	RUSTFLAGS="$(RUSTFLAGS)" $(CARGO) doc --release --workspace --all-features \
 		--no-deps --document-private-items
 
-test: token_lists zkas $(PROOFS_BIN)
+test: token_lists zkas $(PROOFS_BIN) contracts
 	RUSTFLAGS="$(RUSTFLAGS)" $(CARGO) test --release --all-features --all
+	$(MAKE) -c src/contract/money test
 
 test-dao: zkas
 	$(MAKE) -C example/dao
diff --git a/src/sdk/src/crypto/merkle_node.rs b/src/sdk/src/crypto/merkle_node.rs
index 8c7e3582c..be3f33378 100644
--- a/src/sdk/src/crypto/merkle_node.rs
+++ b/src/sdk/src/crypto/merkle_node.rs
@@ -158,3 +158,32 @@ impl Hashable for MerkleNode {
         EMPTY_ROOTS[<usize>::from(altitude)]
     }
 }
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    use halo2_proofs::arithmetic::Field;
+    use incrementalmerkletree::Tree;
+    use pasta_curves::pallas;
+    use rand::rngs::OsRng;
+
+    #[test]
+    fn bridgetree_checkpoints() {
+        const MAX_CHECKPOINTS: usize = 100;
+        let mut tree = MerkleTree::new(MAX_CHECKPOINTS);
+        let mut roots = vec![];
+
+        for _ in 0..MAX_CHECKPOINTS {
+            let leaf = MerkleNode::from(pallas::Base::random(&mut OsRng));
+            tree.append(&leaf);
+            roots.push(tree.root(0).unwrap());
+            tree.checkpoint();
+        }
+
+        for root in roots.iter().rev() {
+            tree.rewind();
+            assert!(root == &tree.root(0).unwrap());
+        }
+    }
+}
diff --git a/tests/arithmetic_proof.rs b/tests/arithmetic_proof.rs
deleted file mode 100644
index ca499a4d0..000000000
--- a/tests/arithmetic_proof.rs
+++ /dev/null
@@ -1,84 +0,0 @@
-/* This file is part of DarkFi (https://dark.fi)
- *
- * Copyright (C) 2020-2022 Dyne.org foundation
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License as
- * published by the Free Software Foundation, either version 3 of the
- * License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
- */
-
-use halo2_proofs::circuit::Value;
-use pasta_curves::pallas;
-use rand::rngs::OsRng;
-use simplelog::{ColorChoice, Config, LevelFilter, TermLogger, TerminalMode};
-
-use darkfi::{
-    zk::{
-        proof::{ProvingKey, VerifyingKey},
-        vm::{Witness, ZkCircuit},
-        vm_stack::empty_witnesses,
-        Proof,
-    },
-    zkas::decoder::ZkBinary,
-    Result,
-};
-
-#[test]
-fn arithmetic_proof() -> Result<()> {
-    TermLogger::init(LevelFilter::Debug, Config::default(), TerminalMode::Mixed, ColorChoice::Auto)
-        .unwrap();
-
-    /* ANCHOR: main */
-    let bincode = include_bytes!("../proof/arithmetic.zk.bin");
-    let zkbin = ZkBinary::decode(bincode)?;
-
-    // ======
-    // Prover
-    // ======
-
-    // Witness values
-    let a = pallas::Base::from(42);
-    let b = pallas::Base::from(69);
-    let y_0 = pallas::Base::from(0); // Here we will compare a > b, which is false (0)
-    let y_1 = pallas::Base::from(1); // Here we will compare b > a, which is true (1)
-
-    let prover_witnesses = vec![Witness::Base(Value::known(a)), Witness::Base(Value::known(b))];
-
-    // Create the public inputs
-    let sum = a + b;
-    let product = a * b;
-    let difference = a - b;
-
-    let public_inputs = vec![sum, product, difference, y_0, y_1];
-
-    // Create the circuit
-    let circuit = ZkCircuit::new(prover_witnesses, zkbin.clone());
-
-    let proving_key = ProvingKey::build(13, &circuit);
-    let proof = Proof::create(&proving_key, &[circuit], &public_inputs, &mut OsRng)?;
-
-    // ========
-    // Verifier
-    // ========
-
-    // Construct empty witnesses
-    let verifier_witnesses = empty_witnesses(&zkbin);
-
-    // Create the circuit
-    let circuit = ZkCircuit::new(verifier_witnesses, zkbin);
-
-    let verifying_key = VerifyingKey::build(13, &circuit);
-    proof.verify(&verifying_key, &public_inputs)?;
-    /* ANCHOR_END: main */
-
-    Ok(())
-}
diff --git a/tests/bridgetree_checkpoints.rs b/tests/bridgetree_checkpoints.rs
deleted file mode 100644
index 737719fb0..000000000
--- a/tests/bridgetree_checkpoints.rs
+++ /dev/null
@@ -1,44 +0,0 @@
-/* This file is part of DarkFi (https://dark.fi)
- *
- * Copyright (C) 2020-2022 Dyne.org foundation
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License as
- * published by the Free Software Foundation, either version 3 of the
- * License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
- */
-
-use darkfi_sdk::{
-    crypto::{MerkleNode, MerkleTree},
-    incrementalmerkletree::Tree,
-};
-use halo2_proofs::arithmetic::Field;
-use pasta_curves::pallas;
-use rand::rngs::OsRng;
-
-#[test]
-fn bridgetree_checkpoints() {
-    const MAX_CHECKPOINTS: usize = 100;
-    let mut tree = MerkleTree::new(MAX_CHECKPOINTS);
-    let mut roots = vec![];
-
-    for _ in 0..MAX_CHECKPOINTS {
-        let leaf = MerkleNode::from(pallas::Base::random(&mut OsRng));
-        tree.append(&leaf);
-        roots.push(tree.root(0).unwrap());
-        tree.checkpoint();
-    }
-
-    for root in roots.iter().rev() {
-        tree.rewind();
-        assert!(root == &tree.root(0).unwrap());
-    }
-}
diff --git a/tests/burn_proof.rs b/tests/burn_proof.rs
deleted file mode 100644
index d5001a1c9..000000000
--- a/tests/burn_proof.rs
+++ /dev/null
@@ -1,153 +0,0 @@
-/* This file is part of DarkFi (https://dark.fi)
- *
- * Copyright (C) 2020-2022 Dyne.org foundation
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License as
- * published by the Free Software Foundation, either version 3 of the
- * License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
- */
-
-use darkfi_sdk::{
-    crypto::{
-        pedersen::{pedersen_commitment_base, pedersen_commitment_u64},
-        poseidon_hash, MerkleNode, Nullifier, PublicKey, SecretKey,
-    },
-    incrementalmerkletree::{bridgetree::BridgeTree, Tree},
-    pasta::{
-        arithmetic::CurveAffine,
-        group::{ff::Field, Curve},
-        pallas,
-    },
-};
-use halo2_gadgets::poseidon::primitives as poseidon;
-use halo2_proofs::circuit::Value;
-use rand::rngs::OsRng;
-
-use darkfi::{
-    zk::{
-        proof::{ProvingKey, VerifyingKey},
-        vm::{Witness, ZkCircuit},
-        vm_stack::empty_witnesses,
-        Proof,
-    },
-    zkas::decoder::ZkBinary,
-    Result,
-};
-
-#[test]
-fn burn_proof() -> Result<()> {
-    /* ANCHOR: main */
-    let bincode = include_bytes!("../proof/burn.zk.bin");
-    let zkbin = ZkBinary::decode(bincode)?;
-
-    // ======
-    // Prover
-    // ======
-
-    // Witness values
-    let value = 42;
-    let token_id = pallas::Base::random(&mut OsRng);
-    let value_blind = pallas::Scalar::random(&mut OsRng);
-    let token_blind = pallas::Scalar::random(&mut OsRng);
-    let serial = pallas::Base::random(&mut OsRng);
-    let coin_blind = pallas::Base::random(&mut OsRng);
-    let secret = SecretKey::random(&mut OsRng);
-    let sig_secret = SecretKey::random(&mut OsRng);
-
-    // Build the coin
-    let coin2 = {
-        let (pub_x, pub_y) = PublicKey::from_secret(secret).xy();
-        let messages = [pub_x, pub_y, pallas::Base::from(value), token_id, serial, coin_blind];
-
-        poseidon::Hash::<_, poseidon::P128Pow5T3, poseidon::ConstantLength<6>, 3, 2>::init()
-            .hash(messages)
-    };
-
-    // Fill the merkle tree with some random coins that we want to witness,
-    // and also add the above coin.
-    let mut tree = BridgeTree::<MerkleNode, 32>::new(100);
-    let coin0 = pallas::Base::random(&mut OsRng);
-    let coin1 = pallas::Base::random(&mut OsRng);
-    let coin3 = pallas::Base::random(&mut OsRng);
-
-    tree.append(&MerkleNode::from(coin0));
-    tree.witness();
-    tree.append(&MerkleNode::from(coin1));
-    tree.append(&MerkleNode::from(coin2));
-    let leaf_pos = tree.witness().unwrap();
-    tree.append(&MerkleNode::from(coin3));
-    tree.witness();
-
-    let root = tree.root(0).unwrap();
-    let merkle_path = tree.authentication_path(leaf_pos, &root).unwrap();
-    let leaf_pos: u64 = leaf_pos.into();
-
-    let prover_witnesses = vec![
-        Witness::Base(Value::known(secret.inner())),
-        Witness::Base(Value::known(serial)),
-        Witness::Base(Value::known(pallas::Base::from(value))),
-        Witness::Base(Value::known(token_id)),
-        Witness::Base(Value::known(coin_blind)),
-        Witness::Scalar(Value::known(value_blind)),
-        Witness::Scalar(Value::known(token_blind)),
-        Witness::Uint32(Value::known(leaf_pos.try_into().unwrap())),
-        Witness::MerklePath(Value::known(merkle_path.try_into().unwrap())),
-        Witness::Base(Value::known(sig_secret.inner())),
-    ];
-
-    // Create the public inputs
-    let nullifier = Nullifier::from(poseidon_hash::<2>([secret.inner(), serial]));
-
-    let value_commit = pedersen_commitment_u64(value, value_blind);
-    let value_coords = value_commit.to_affine().coordinates().unwrap();
-
-    let token_commit = pedersen_commitment_base(token_id, token_blind);
-    let token_coords = token_commit.to_affine().coordinates().unwrap();
-
-    let sig_pubkey = PublicKey::from_secret(sig_secret);
-    let (sig_x, sig_y) = sig_pubkey.xy();
-
-    let merkle_root = tree.root(0).unwrap();
-
-    let public_inputs = vec![
-        nullifier.inner(),
-        *value_coords.x(),
-        *value_coords.y(),
-        *token_coords.x(),
-        *token_coords.y(),
-        merkle_root.inner(),
-        sig_x,
-        sig_y,
-    ];
-
-    // Create the circuit
-    let circuit = ZkCircuit::new(prover_witnesses, zkbin.clone());
-
-    let proving_key = ProvingKey::build(13, &circuit);
-    let proof = Proof::create(&proving_key, &[circuit], &public_inputs, &mut OsRng)?;
-
-    // ========
-    // Verifier
-    // ========
-
-    // Construct empty witnesses
-    let verifier_witnesses = empty_witnesses(&zkbin);
-
-    // Create the circuit
-    let circuit = ZkCircuit::new(verifier_witnesses, zkbin);
-
-    let verifying_key = VerifyingKey::build(13, &circuit);
-    proof.verify(&verifying_key, &public_inputs)?;
-    /* ANCHOR_END: main */
-
-    Ok(())
-}
diff --git a/tests/data/erc20tokenlisttest.json b/tests/data/erc20tokenlisttest.json
deleted file mode 100644
index 925a7949f..000000000
--- a/tests/data/erc20tokenlisttest.json
+++ /dev/null
@@ -1,34 +0,0 @@
-{
-	"name": "CoinGecko",
-	"logoURI": "https://www.coingecko.com/assets/thumbnail-007177f3eca19695592f0b8b0eabbdae282b54154e1be912285c9034ea6cbaf2.png",
-	"keywords": [
-		"defi"
-	],
-	"timestamp": "2021-10-25T10:07:01.891+00:00",
-	"tokens": [
-		{
-			"chainId": 1,
-			"address": "0xdac17f958d2ee523a2206206994597c13d831ec7",
-			"name": "Tether",
-			"symbol": "USDT",
-			"decimals": 6,
-			"logoURI": "https://assets.coingecko.com/coins/images/325/thumb/Tether-logo.png?1598003707"
-		},
-		        {
-            "chainId": 1,
-            "address": "0xeb4c2781e4eba804ce9a9803c67d0893436bb27d",
-            "name": "renBTC",
-            "symbol": "RENBTC",
-            "decimals": 8,
-            "logoURI": "https://assets.coingecko.com/coins/images/11370/thumb/Bitcoin.jpg?1628072791"
-        },
-		        {
-            "chainId": 1,
-            "address": "0x2260fac5e5542a773aa44fbcfedf7c193bc2c599",
-            "name": "Wrapped Bitcoin",
-            "symbol": "WBTC",
-            "decimals": 8,
-            "logoURI": "https://assets.coingecko.com/coins/images/7598/thumb/wrapped_bitcoin_wbtc.png?1548822744"
-        }
-	]
-}
diff --git a/tests/data/solanatokenlisttest.json b/tests/data/solanatokenlisttest.json
deleted file mode 100644
index 1fc1374da..000000000
--- a/tests/data/solanatokenlisttest.json
+++ /dev/null
@@ -1,88 +0,0 @@
-{
-	"tokens": [
-		{
-			"chainId": 101,
-			"address": "HDLRMKW1FDz2q5Zg778CZx26UgrtnqpUDkNNJHhmVUFr",
-			"symbol": "MILLI",
-			"name": "MILLIONSY",
-			"decimals": 9,
-			"logoURI": "https://github.com/millionsy/token-list/blob/main/assets/mainnet/HDLRMKW1FDz2q5Zg778CZx26UgrtnqpUDkNNJHhmVUFr/logo.png",
-			"tags": [
-				"Solana tokenized",
-				"Solana Community token"
-			],
-			"extensions": {
-				"website": "https://www.millionsy.io/",
-				"telegram": "https://t.me/MILLIONSYofficialchat",
-				"twitter": "https://twitter.com/MILLIONSYio"
-			}
-		},
-		{
-			"chainId": 101,
-			"address": "99pifp4v4qQNk3irTHpmAEEzgKfs3ahLE7iFKEqfyxPj",
-			"symbol": "ZI",
-			"name": "ZI (The Z Institute Token)",
-			"decimals": 6,
-			"logoURI": "https://raw.githubusercontent.com/solana-labs/token-list/main/assets/mainnet/99pifp4v4qQNk3irTHpmAEEzgKfs3ahLE7iFKEqfyxPj/logo.png",
-			"tags": [
-				"utility-token"
-			],
-			"extensions": {
-				"website": "https://zinstitute.net/",
-				"twitter": "https://twitter.com/the_z_institute"
-			}
-		},
-		{
-			"chainId": 101,
-			"address": "FYfQ9uaRaYvRiaEGUmct45F9WKam3BYXArTrotnTNFXF",
-			"symbol": "SOLA",
-			"name": "Sola Token",
-			"decimals": 9,
-			"logoURI": "https://raw.githubusercontent.com/solana-labs/token-list/main/assets/mainnet/FYfQ9uaRaYvRiaEGUmct45F9WKam3BYXArTrotnTNFXF/logo.png",
-			"tags": [
-				"Solana tokenized",
-				"Solana Community token"
-			],
-			"extensions": {
-				"website": "https://solatoken.net/",
-				"telegram": "https://t.me/solatokennet",
-				"twitter": "https://twitter.com/EcoSolana",
-				"serumV3Usdc": "4RZ27tjRnSwrtRqsJxDEgsERnDKFs7yx6Ra3HsJvkboy",
-				"coingeckoId": "sola-token"
-			}
-		},
-		{
-			"chainId": 101,
-			"address": "So11111111111111111111111111111111111111112",
-			"symbol": "SOL",
-			"name": "Wrapped SOL",
-			"decimals": 9,
-			"logoURI": "https://raw.githubusercontent.com/solana-labs/token-list/main/assets/mainnet/So11111111111111111111111111111111111111112/logo.png",
-			"tags": [],
-			"extensions": {
-				"website": "https://solana.com/",
-				"serumV3Usdc": "9wFFyRfZBsuAha4YcuxcXLKwMxJR43S7fPfQLusDBzvT",
-				"serumV3Usdt": "HWHvQhFmJB3NUcu1aihKmrKegfVxBEHzwVX6yZCKEsi1",
-				"coingeckoId": "solana"
-			}
-		},
-		{
-			"chainId": 101,
-			"address": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
-			"symbol": "USDC",
-			"name": "USD Coin",
-			"decimals": 6,
-			"logoURI": "https://raw.githubusercontent.com/solana-labs/token-list/main/assets/mainnet/EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v/logo.png",
-			"tags": [
-				"stablecoin"
-			],
-			"extensions": {
-				"website": "https://www.centre.io/",
-				"coingeckoId": "usd-coin",
-				"serumV3Usdt": "77quYg4MGneUdjgXCunt9GgM1usmrxKY31twEy3WHwcS"
-			}
-		}
-	]
-}
-
-
diff --git a/tests/mint_proof.rs b/tests/mint_proof.rs
deleted file mode 100644
index 1c0416d76..000000000
--- a/tests/mint_proof.rs
+++ /dev/null
@@ -1,111 +0,0 @@
-/* This file is part of DarkFi (https://dark.fi)
- *
- * Copyright (C) 2020-2022 Dyne.org foundation
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License as
- * published by the Free Software Foundation, either version 3 of the
- * License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
- */
-
-use darkfi_sdk::{
-    crypto::{
-        pedersen::{pedersen_commitment_base, pedersen_commitment_u64},
-        PublicKey, SecretKey,
-    },
-    pasta::{
-        arithmetic::CurveAffine,
-        group::{ff::Field, Curve},
-        pallas,
-    },
-};
-use halo2_gadgets::poseidon::primitives as poseidon;
-use halo2_proofs::circuit::Value;
-use rand::rngs::OsRng;
-
-use darkfi::{
-    zk::{
-        proof::{ProvingKey, VerifyingKey},
-        vm::{Witness, ZkCircuit},
-        vm_stack::empty_witnesses,
-        Proof,
-    },
-    zkas::decoder::ZkBinary,
-    Result,
-};
-
-#[test]
-fn mint_proof() -> Result<()> {
-    /* ANCHOR: main */
-    let bincode = include_bytes!("../proof/mint.zk.bin");
-    let zkbin = ZkBinary::decode(bincode)?;
-
-    // ======
-    // Prover
-    // ======
-
-    // Witness values
-    let value = 42;
-    let token_id = pallas::Base::random(&mut OsRng);
-    let value_blind = pallas::Scalar::random(&mut OsRng);
-    let token_blind = pallas::Scalar::random(&mut OsRng);
-    let serial = pallas::Base::random(&mut OsRng);
-    let coin_blind = pallas::Base::random(&mut OsRng);
-    let public_key = PublicKey::from_secret(SecretKey::random(&mut OsRng));
-    let (pub_x, pub_y) = public_key.xy();
-
-    let prover_witnesses = vec![
-        Witness::Base(Value::known(pub_x)),
-        Witness::Base(Value::known(pub_y)),
-        Witness::Base(Value::known(pallas::Base::from(value))),
-        Witness::Base(Value::known(token_id)),
-        Witness::Base(Value::known(serial)),
-        Witness::Base(Value::known(coin_blind)),
-        Witness::Scalar(Value::known(value_blind)),
-        Witness::Scalar(Value::known(token_blind)),
-    ];
-
-    // Create the public inputs
-    let msgs = [pub_x, pub_y, pallas::Base::from(value), token_id, serial, coin_blind];
-    let coin = poseidon::Hash::<_, poseidon::P128Pow5T3, poseidon::ConstantLength<6>, 3, 2>::init()
-        .hash(msgs);
-
-    let value_commit = pedersen_commitment_u64(value, value_blind);
-    let value_coords = value_commit.to_affine().coordinates().unwrap();
-
-    let token_commit = pedersen_commitment_base(token_id, token_blind);
-    let token_coords = token_commit.to_affine().coordinates().unwrap();
-
-    let public_inputs =
-        vec![coin, *value_coords.x(), *value_coords.y(), *token_coords.x(), *token_coords.y()];
-
-    // Create the circuit
-    let circuit = ZkCircuit::new(prover_witnesses, zkbin.clone());
-
-    let proving_key = ProvingKey::build(13, &circuit);
-    let proof = Proof::create(&proving_key, &[circuit], &public_inputs, &mut OsRng)?;
-
-    // ========
-    // Verifier
-    // ========
-
-    // Construct empty witnesses
-    let verifier_witnesses = empty_witnesses(&zkbin);
-
-    // Create the circuit
-    let circuit = ZkCircuit::new(verifier_witnesses, zkbin);
-
-    let verifying_key = VerifyingKey::build(13, &circuit);
-    proof.verify(&verifying_key, &public_inputs)?;
-    /* ANCHOR_END: main */
-
-    Ok(())
-}