Test/custom token support tests

contracts/predictify-hybrid/src/custom_token_tests.rs

@@ -0,0 +1,381 @@
+#![cfg(test)]
+
+use crate::{PredictifyHybrid, PredictifyHybridClient};
+use crate::types::{OracleConfig, OracleProvider};
+use soroban_sdk::{
+    testutils::{Address as _, Ledger, LedgerInfo},
+    token::StellarAssetClient,
+    vec, Address, Env, String, Symbol,
+};
+
+// Test setup with flexible token configuration
+struct CustomTokenTestSetup {
+    env: Env,
+    contract_id: Address,
+    admin: Address,
+    token_id: Address,
+    token_admin: Address,
+    market_id: Symbol,
+}
+
+impl CustomTokenTestSetup {
+    fn new() -> Self {
+        let env = Env::default();
+        env.mock_all_auths();
+
+        // Setup admin
+        let admin = Address::generate(&env);
+
+        // Register contract
+        let contract_id = env.register(PredictifyHybrid, ());
+        let client = PredictifyHybridClient::new(&env, &contract_id);
+        client.initialize(&admin, &None);
+
+        // Setup custom token
+        let token_admin = Address::generate(&env);
+        let token_contract = env.register_stellar_asset_contract_v2(token_admin.clone());
+        let token_id = token_contract.address();
+
+        // Configure contract to use this token
+        env.as_contract(&contract_id, || {
+            env.storage()
+                .persistent()
+                .set(&Symbol::new(&env, "TokenID"), &token_id);
+        });
+
+        // Create a test market
+        let outcomes = vec![
+            &env,
+            String::from_str(&env, "yes"),
+            String::from_str(&env, "no"),
+        ];
+
+        let oracle_address = Address::generate(&env);
+        let market_id = client.create_market(
+            &admin,
+            &String::from_str(&env, "Will it rain?"),
+            &outcomes,
+            &30,
+            &OracleConfig {
+                provider: OracleProvider::Reflector,
+                oracle_address: oracle_address.clone(),
+                feed_id: String::from_str(&env, "RAIN"),
+                threshold: 1,
+                comparison: String::from_str(&env, "gt"),
+            },
+            &None,       // fallback_oracle_config
+            &3600,       // resolution_timeout
+            &None,       // min_pool_size
+            &None,       // bet_deadline_mins_before_end
+            &None,       // dispute_window_seconds
+        );
+
+        Self {
+            env,
+            contract_id,
+            admin,
+            token_id,
+            token_admin,
+            market_id,
+        }
+    }
+
+    fn client(&self) -> PredictifyHybridClient<'_> {
+        PredictifyHybridClient::new(&self.env, &self.contract_id)
+    }
+
+    fn token_admin_client(&self) -> StellarAssetClient<'_> {
+        StellarAssetClient::new(&self.env, &self.token_id)
+    }
+
+    fn token_client(&self) -> soroban_sdk::token::Client<'_> {
+        soroban_sdk::token::Client::new(&self.env, &self.token_id)
+    }
+}
+
+#[test]
+fn test_bet_placement_with_custom_token() {
+    let setup = CustomTokenTestSetup::new();
+    let client = setup.client();
+    let token_admin_client = setup.token_admin_client();
+    let token_client = setup.token_client();
+
+    let user = Address::generate(&setup.env);
+    let bet_amount = 10_000_000; // 1 token
+
+    // Mint tokens to user
+    token_admin_client.mint(&user, &100_000_000); // 10 tokens
+
+    // Place bet
+    client.place_bet(
+        &user,
+        &setup.market_id,
+        &String::from_str(&setup.env, "yes"),
+        &bet_amount,
+    );
+
+    // Verify balance decreased
+    assert_eq!(token_client.balance(&user), 90_000_000);
+
+    // Verify contract balance increased
+    assert_eq!(token_client.balance(&setup.contract_id), bet_amount);
+}
+
+#[test]
+fn test_insufficient_balance() {
+    let setup = CustomTokenTestSetup::new();
+    let client = setup.client();
+    let token_admin_client = setup.token_admin_client();
+
+    let user = Address::generate(&setup.env);
+    let bet_amount = 10_000_000;
+
+    // Mint LESS tokens than bet amount
+    token_admin_client.mint(&user, &5_000_000); // 0.5 tokens
+
+    // Attempt to place bet using try_place_bet to avoid panics/segfaults
+    let result = client.try_place_bet(
+        &user,
+        &setup.market_id,
+        &String::from_str(&setup.env, "yes"),
+        &bet_amount,
+    );
+
+    // Should return an error (likely HostError due to transfer failure)
+    assert!(result.is_err());
+}
+
+#[test]
+fn test_payout_distribution_flow() {
+    let setup = CustomTokenTestSetup::new();
+    let client = setup.client();
+    let token_admin_client = setup.token_admin_client();
+    let token_client = setup.token_client();
+
+    let user_winner = Address::generate(&setup.env);
+    let user_loser = Address::generate(&setup.env);
+    let bet_amount = 10_000_000;
+
+    // Mint tokens
+    token_admin_client.mint(&user_winner, &100_000_000);
+    token_admin_client.mint(&user_loser, &100_000_000);
+
+    // Place bets
+    client.place_bet(
+        &user_winner,
+        &setup.market_id,
+        &String::from_str(&setup.env, "yes"),
+        &bet_amount,
+    );
+
+    client.place_bet(
+        &user_loser,
+        &setup.market_id,
+        &String::from_str(&setup.env, "no"),
+        &bet_amount,
+    );
+
+    // Advance time to end market but NOT past dispute window
+    let market = client.get_market(&setup.market_id).unwrap();
+    setup.env.ledger().set(LedgerInfo {
+        timestamp: market.end_time + 1,
+        protocol_version: 22,
+        sequence_number: setup.env.ledger().sequence(),
+        network_id: Default::default(),
+        base_reserve: 10,
+        min_temp_entry_ttl: 1,
+        min_persistent_entry_ttl: 1,
+        max_entry_ttl: 10000,
+    });
+
+    // Resolve market manually (Admin wins "yes")
+    client.resolve_market_manual(
+        &setup.admin,
+        &setup.market_id,
+        &String::from_str(&setup.env, "yes"),
+    );
+
+    // Verify market is resolved but no payout distributed yet (due to dispute window)
+    let market_after = client.get_market(&setup.market_id).unwrap();
+    assert!(market_after.winning_outcomes.is_some());
+    assert_eq!(token_client.balance(&user_winner), 90_000_000); // Only initial balance minus bet
+
+    // Advance time past dispute window (24h default)
+    setup.env.ledger().set(LedgerInfo {
+        timestamp: market.end_time + 86400 + 1,
+        protocol_version: 22,
+        sequence_number: setup.env.ledger().sequence(),
+        network_id: Default::default(),
+        base_reserve: 10,
+        min_temp_entry_ttl: 1,
+        min_persistent_entry_ttl: 1,
+        max_entry_ttl: 10000,
+    });
+
+    // Distribute payouts
+    let total_distributed = client.distribute_payouts(&setup.market_id);
+    assert!(total_distributed > 0);
+
+    // Verify winner received payout (Original stake + winnings - fees)
+    // Winner staked 10M, Loser staked 10M. Total pool 20M.
+    // Fee 2% = 400k. Payout pool = 19.6M.
+    // Winner share = 100%. Payout = 19.6M.
+    // Final balance = 90M + 19.6M = 109.6M
+    let winner_balance = token_client.balance(&user_winner);
+    assert_eq!(winner_balance, 109_600_000);
+
+    // Loser gets nothing
+    assert_eq!(token_client.balance(&user_loser), 90_000_000);
+}
+
+#[test]
+fn test_switch_token_support() {
+    // This test verifies that we can switch the token used by the contract
+    // by updating the TokenID storage key.
+
+    let setup = CustomTokenTestSetup::new();
+    let token1_client = setup.token_client();
+    let client = setup.client();
+
+    // 1. Verify betting with Token 1
+    let user1 = Address::generate(&setup.env);
+    setup.token_admin_client().mint(&user1, &10_000_000);
+
+    client.place_bet(
+        &user1,
+        &setup.market_id,
+        &String::from_str(&setup.env, "yes"),
+        &10_000_000,
+    );
+    assert_eq!(token1_client.balance(&user1), 0);
+
+    // 2. Create and switch to Token 2
+    let token2_admin = Address::generate(&setup.env);
+    let token2_contract = setup.env.register_stellar_asset_contract_v2(token2_admin.clone());
+    let token2_id = token2_contract.address();
+    let token2_admin_client = StellarAssetClient::new(&setup.env, &token2_id);
+    let token2_client = soroban_sdk::token::Client::new(&setup.env, &token2_id);
+
+    // Update contract storage to use Token 2
+    setup.env.as_contract(&setup.contract_id, || {
+        setup.env.storage()
+            .persistent()
+            .set(&Symbol::new(&setup.env, "TokenID"), &token2_id);
+    });
+
+    // 3. Verify betting with Token 2
+    let user2 = Address::generate(&setup.env);
+    token2_admin_client.mint(&user2, &20_000_000);
+
+    // Bet on existing one is fine.
+    client.place_bet(
+        &user2,
+        &setup.market_id,
+        &String::from_str(&setup.env, "no"),
+        &20_000_000,
+    );
+
+    // Verify balances for Token 2
+    assert_eq!(token2_client.balance(&user2), 0);
+    assert_eq!(token2_client.balance(&setup.contract_id), 20_000_000);
+
+    // Verify Token 1 balances are unchanged
+    assert_eq!(token1_client.balance(&setup.contract_id), 10_000_000);
+}
+
+#[test]
+fn test_cancel_refund_custom_token() {
+    let setup = CustomTokenTestSetup::new();
+    let client = setup.client();
+    let token_admin_client = setup.token_admin_client();
+    let token_client = setup.token_client();
+
+    let user = Address::generate(&setup.env);
+    let bet_amount = 10_000_000;
+
+    // Mint tokens
+    token_admin_client.mint(&user, &20_000_000);
+
+    // Place bet
+    client.place_bet(
+        &user,
+        &setup.market_id,
+        &String::from_str(&setup.env, "yes"),
+        &bet_amount,
+    );
+
+    // Verify balance before cancellation
+    assert_eq!(token_client.balance(&user), 10_000_000);
+    assert_eq!(token_client.balance(&setup.contract_id), bet_amount);
+
+    // Cancel event
+    client.cancel_event(
+        &setup.admin,
+        &setup.market_id,
+        &Some(String::from_str(&setup.env, "Technical issue")),
+    );
+
+    // Verify balance after cancellation (should be refunded)
+    assert_eq!(token_client.balance(&user), 20_000_000);
+    assert_eq!(token_client.balance(&setup.contract_id), 0);
+}
+
+#[test]
+fn test_fee_collection_custom_token() {
+    let setup = CustomTokenTestSetup::new();
+    let client = setup.client();
+    let token_admin_client = setup.token_admin_client();
+    let token_client = setup.token_client();
+
+    let user = Address::generate(&setup.env);
+    let bet_amount = 100_000_000;
+
+    // Mint tokens
+    token_admin_client.mint(&user, &bet_amount);
+
+    // Place bet
+    client.place_bet(
+        &user,
+        &setup.market_id,
+        &String::from_str(&setup.env, "yes"),
+        &bet_amount,
+    );
+
+    // Advance time to end market
+    let market = client.get_market(&setup.market_id).unwrap();
+    setup.env.ledger().set(LedgerInfo {
+        timestamp: market.end_time + 1,
+        protocol_version: 22,
+        sequence_number: setup.env.ledger().sequence(),
+        network_id: Default::default(),
+        base_reserve: 10,
+        min_temp_entry_ttl: 1,
+        min_persistent_entry_ttl: 1,
+        max_entry_ttl: 10000,
+    });
+
+    // Resolve market
+    client.resolve_market_manual(
+        &setup.admin,
+        &setup.market_id,
+        &String::from_str(&setup.env, "yes"),
+    );
+
+    // Collect fees
+    let fee_amount = client.collect_fees(
+        &setup.admin,
+        &setup.market_id,
+    );
+
+    // Verify admin balance has not increased yet (as fees are in vault)
+    let admin_balance_before = token_client.balance(&setup.admin);
+    assert_eq!(admin_balance_before, 0);
+
+    // Withdraw fees from vault
+    let withdrawn_amount = client.withdraw_fees(&setup.admin, &fee_amount);
+    assert_eq!(withdrawn_amount, fee_amount);
+
+    // Verify admin balance increased by withdrawn amount
+    let admin_balance_after = token_client.balance(&setup.admin);
+    assert_eq!(admin_balance_after, fee_amount);
+}