diff --git a/client/Cargo.toml b/client/Cargo.toml
index f704f37..b1db26e 100644
--- a/client/Cargo.toml
+++ b/client/Cargo.toml
@@ -10,10 +10,10 @@ nostr-sdk = { version = "0.32.0", features = ["nip04"] }
 cdk = "0.1.1"
 dotenv = "0.15.0"
 anyhow = "1.0.86"
-tokio = "1.38.0"
+tokio = { version = "1.38.0", features = ["test-util"] }
 rand = "0.8.5"
 serde = "1.0.203"
 serde_json = "1.0.117"
 sha2 = "0.10.8"
 
-cashu_escrow_common = { path = "../common" }
\ No newline at end of file
+cashu_escrow_common = { path = "../common" }
diff --git a/client/src/ecash/mod.rs b/client/src/ecash/mod.rs
index a8e10f5..09699cf 100644
--- a/client/src/ecash/mod.rs
+++ b/client/src/ecash/mod.rs
@@ -1,6 +1,7 @@
+mod tests_ecash;
+
 use super::*;
 
-use escrow_client::EscrowUser;
 use cdk::secp256k1::rand::Rng;
 use cdk::{
     amount::SplitTarget,
@@ -8,6 +9,7 @@ use cdk::{
     nuts::{Conditions, CurrencyUnit, PublicKey, SecretKey, SigFlag, SpendingConditions, Token},
     wallet::Wallet,
 };
+use escrow_client::EscrowUser;
 use std::str::FromStr;
 use std::sync::Arc;
 
@@ -50,7 +52,7 @@ impl EcashWallet {
                 Some(vec![buyer_pubkey]),
                 Some(2),
                 Some(SigFlag::SigAll),
-            )?)
+            )?),
         );
         Ok(spending_conditions)
     }
diff --git a/client/src/ecash/tests_ecash.rs b/client/src/ecash/tests_ecash.rs
new file mode 100644
index 0000000..393941d
--- /dev/null
+++ b/client/src/ecash/tests_ecash.rs
@@ -0,0 +1,53 @@
+use cdk::wallet;
+
+#[cfg(test)]
+use super::super::EcashWallet;
+use super::*;
+
+async fn _new_testing_wallet() -> EcashWallet {
+    let secret = SecretKey::generate();
+    let trade_pubkey: String = secret.public_key().to_string();
+    EcashWallet {
+        secret,
+        wallet: Wallet::new(
+            "",
+            CurrencyUnit::Sat,
+            Arc::new(WalletMemoryDatabase::default()),
+            &rand::thread_rng().gen::<[u8; 32]>(),
+        ),
+        trade_pubkey,
+    }
+}
+
+async fn _get_dummy_escrow_user() -> EscrowUser {
+    let trade_beginning_ts = Timestamp::from(1720724405);
+    let escrow_coordintor_npub = "";
+    let escrow_coordinator_cashu_pk = PublicKey::from_hex("").unwrap();
+    let contract = TradeContract {
+        trade_id: 0,
+        buyer_ecash_public_key: "".to_string(),
+        seller_ecash_public_key: "".to_string(),
+        trade_amount_sat: 0,
+        trade_description: "".to_string(),
+        time_limit: 0,
+        trade_beginning_ts: 0,
+    };
+    let wallet = _new_testing_wallet().await;
+    let nostr_client = NostrClient::new().await.unwrap();
+    EscrowUser {}
+}
+
+#[tokio::test]
+async fn test_escrow_token_creation() {
+    let wallet = _new_testing_wallet().await;
+}
+
+#[tokio::test]
+async fn test_invalid_escrow_token_validation() {
+    let wallet = _new_testing_wallet().await;
+}
+
+#[tokio::test]
+async fn test_valid_escrow_token_validation() {
+    let wallet = _new_testing_wallet().await;
+}