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Merged
greatest0fallt1me merged 4 commits into from
Mar 31, 2026
Merged

Feature/gas tests stable #503

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4229950
test(contract): stabilize gas tracking tests
Agbasimere Mar 30, 2026
dc0e406
fix: restore contract ci build and tests
Agbasimere Mar 30, 2026
60ac36a
fix: avoid soroban to_string in wasm builds
Agbasimere Mar 30, 2026
fcad6de
Merge branch 'master' into feature/gas-tests-stable
greatest0fallt1me Mar 31, 2026
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59 changes: 42 additions & 17 deletions contracts/predictify-hybrid/src/gas.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -5,10 +5,26 @@ use soroban_sdk::{contracttype, panic_with_error, symbol_short, Env, Symbol};
#[contracttype]
#[derive(Clone, Debug, Eq, PartialEq)]
pub enum GasConfigKey {
/// Global or operation-specific gas limit (CPU instructions)
GasLimit(Symbol),
/// Operation-specific memory limit (bytes)
MemLimit(Symbol),
/// Mock cost for tests: (symbol_short!("t_cpu") | symbol_short!("t_mem"), operation)
TestCost(Symbol, Symbol),
}

/// Represents consumed resources for an operation.
#[contracttype]
#[derive(Clone, Debug, Eq, PartialEq, Default)]
pub struct GasUsage {
pub cpu: u64,
pub mem: u64,
}

/// GasTracker provides observability hooks and optimization limits.
///
/// It allows tracking CPU and memory usage in tests via mocks and provides
/// an administrative interface to set limits on production operations.
pub struct GasTracker;

impl GasTracker {
Expand All @@ -23,45 +39,54 @@ impl GasTracker {
/// can be disabled in high-traffic deployments if needed.

/// Administrative hook to set a gas/budget limit per operation.
pub fn set_limit(env: &Env, operation: Symbol, max_units: u64) {
pub fn set_limit(env: &Env, operation: Symbol, max_cpu: u64, max_mem: u64) {
env.storage()
.instance()
.set(&GasConfigKey::GasLimit(operation), &max_units);
.set(&GasConfigKey::GasLimit(operation.clone()), &max_cpu);
env.storage()
.instance()
.set(&GasConfigKey::MemLimit(operation), &max_mem);
}

/// Retrieves the current gas budget limit for an operation.
pub fn get_limit(env: &Env, operation: Symbol) -> Option<u64> {
env.storage()
pub fn get_limits(env: &Env, operation: Symbol) -> (Option<u64>, Option<u64>) {
let cpu = env.storage()
.instance()
.get(&GasConfigKey::GasLimit(operation))
.get(&GasConfigKey::GasLimit(operation.clone()));
let mem = env.storage()
.instance()
.get(&GasConfigKey::MemLimit(operation));
(cpu, mem)
}

/// Hook to call before an operation begins. Returns a usage marker.
pub fn start_tracking(_env: &Env) -> u64 {
// Budget metrics are not directly accessible in contract code.
// Budget metrics are not directly accessible in contract code via Env.
// This hook remains for interface compatibility and future host-side logging.
0
}

/// Hook to call immediately after an operation.
/// It records the usage, publishes an observability event, and checks the admin cap.
/// It records usage, publishes an observability event, and checks admin caps.
pub fn end_tracking(env: &Env, operation: Symbol, _start_marker: u64) {
// Placeholder for actual cost. Host-side diagnostics should be used for precise gas monitoring.
#[cfg(not(test))]
let actual_cost = 0;

#[cfg(test)]
let actual_cost = env.storage().temporary().get::<Symbol, u64>(&symbol_short!("t_gas")).unwrap_or(0);
let cost = Self::get_actual_cost(env, operation.clone());

// Publish observability event: [ "gas_used", operation.clone() ] -> cost_used
// Publish observability event: [ "gas_used", operation ] -> cost
env.events().publish(
(symbol_short!("gas_used"), operation.clone()),
actual_cost,
cost.clone(),
);

// Optional: admin-set gas budget cap per call (abort if exceeded)
if let Some(limit) = Self::get_limit(env, operation) {
if actual_cost > limit {
let (cpu_limit, mem_limit) = Self::get_limits(env, operation);

if let Some(limit) = cpu_limit {
if cost.cpu > limit {
panic_with_error!(env, crate::err::Error::GasBudgetExceeded);
}
}
if let Some(limit) = mem_limit {
if cost.mem > limit {
panic_with_error!(env, crate::err::Error::GasBudgetExceeded);
}
}
Expand Down
176 changes: 37 additions & 139 deletions contracts/predictify-hybrid/src/gas_test.rs
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Original file line number Diff line number Diff line change
@@ -1,7 +1,7 @@
#![cfg(test)]

use soroban_sdk::{testutils::{Events, Address as _, Ledger}, vec, Env, String, Symbol, symbol_short, Val, TryIntoVal, Address, token::StellarAssetClient};
use crate::gas::GasTracker;
use crate::gas::{GasTracker, GasUsage};
use crate::PredictifyHybrid;

#[test]
Expand All @@ -12,11 +12,15 @@ fn test_gas_limit_storage() {

env.as_contract(&contract_id, || {
// Default should be None
assert_eq!(GasTracker::get_limit(&env, operation.clone()), None);
let (cpu, mem) = GasTracker::get_limits(&env, operation.clone());
assert_eq!(cpu, None);
assert_eq!(mem, None);

// Set limit
GasTracker::set_limit(&env, operation.clone(), 5000);
assert_eq!(GasTracker::get_limit(&env, operation), Some(5000));
// Set limits
GasTracker::set_limit(&env, operation.clone(), 5000, 1000);
let (cpu, mem) = GasTracker::get_limits(&env, operation);
assert_eq!(cpu, Some(5000));
assert_eq!(mem, Some(1000));
});
}

Expand All @@ -27,6 +31,9 @@ fn test_gas_tracking_observability() {
let operation = symbol_short!("test_op");

env.as_contract(&contract_id, || {
// Set mock cost
GasTracker::set_test_cost(&env, operation.clone(), 1234, 567);

let marker = GasTracker::start_tracking(&env);
GasTracker::end_tracking(&env, operation.clone(), marker);
});
Expand All @@ -42,173 +49,64 @@ fn test_gas_tracking_observability() {

assert_eq!(topic_0, symbol_short!("gas_used"));
assert_eq!(topic_1, operation);

let cost: GasUsage = last_event.2.try_into_val(&env).unwrap();
assert_eq!(cost.cpu, 1234);
assert_eq!(cost.mem, 567);
}

#[test]
#[should_panic(expected = "Gas budget cap exceeded")]
fn test_gas_limit_enforcement() {
fn test_gas_limit_enforcement_cpu() {
let env = Env::default();
let contract_id = env.register(PredictifyHybrid, ());
let operation = symbol_short!("test_op");

env.as_contract(&contract_id, || {
// Set limit to 500
GasTracker::set_limit(&env, operation.clone(), 500);
// Set CPU limit to 500
GasTracker::set_limit(&env, operation.clone(), 500, 2000);

// Mock the cost to 1000 (exceeds limit)
env.storage().temporary().set(&symbol_short!("t_gas"), &1000u64);
// Mock the cost to 1000 (exceeds CPU limit)
GasTracker::set_test_cost(&env, operation.clone(), 1000, 1000);

let marker = GasTracker::start_tracking(&env);
GasTracker::end_tracking(&env, operation, marker);
});
}

#[test]
fn test_gas_limit_not_exceeded() {
#[should_panic(expected = "Gas budget cap exceeded")]
fn test_gas_limit_enforcement_mem() {
let env = Env::default();
let contract_id = env.register(PredictifyHybrid, ());
let operation = symbol_short!("test_op");

env.as_contract(&contract_id, || {
// Set limit to 1500
GasTracker::set_limit(&env, operation.clone(), 1500);
// Set Mem limit to 500
GasTracker::set_limit(&env, operation.clone(), 2000, 500);

// Mock the cost to 1000 (within limit)
env.storage().temporary().set(&symbol_short!("t_gas"), &1000u64);
// Mock the cost to 1000 (exceeds Mem limit)
GasTracker::set_test_cost(&env, operation.clone(), 1000, 1000);

let marker = GasTracker::start_tracking(&env);
GasTracker::end_tracking(&env, operation, marker);
});
}
#[test]
fn test_integration_with_vote() {
let env = Env::default();
env.mock_all_auths(); // Fix auth issues in tests
let contract_id = env.register(PredictifyHybrid, ());
let client = crate::PredictifyHybridClient::new(&env, &contract_id);

let admin = Address::generate(&env);
let user = Address::generate(&env);

// Initialize
client.initialize(&admin, &None);

// Create a market
let question = String::from_str(&env, "Test Question?");
let outcomes = vec![&env, String::from_str(&env, "Yes"), String::from_str(&env, "No")];
let oracle_config = crate::OracleConfig::none_sentinel(&env);

let market_id = client.create_market(
&admin,
&question,
&outcomes,
&30,
&oracle_config,
&None,
&86400,
&None,
&None,
&None,
);

// Setup token for staking
let token_admin = Address::generate(&env);
let token_contract = env.register_stellar_asset_contract_v2(token_admin.clone());
let token_id = token_contract.address();

// Set token for staking in contract storage
env.as_contract(&contract_id, || {
env.storage()
.persistent()
.set(&Symbol::new(&env, "TokenID"), &token_id);
});

// Fund user with tokens and approve contract
let stellar_client = StellarAssetClient::new(&env, &token_id);
stellar_client.mint(&user, &1000_0000000); // 1,000 XLM

let token_client = soroban_sdk::token::Client::new(&env, &token_id);
token_client.approve(&user, &contract_id, &i128::MAX, &1000000);

// Clear previous events
let _ = env.events().all();

// Vote
client.vote(&user, &market_id, &String::from_str(&env, "Yes"), &1000000);

// Verify gas_used event for "vote"
let events = env.events().all();
let gas_event = events.iter().find(|e| {
let topics = &e.1;
let topic_0: Result<Symbol, _> = topics.get(0).unwrap().try_into_val(&env);
topic_0.is_ok() && topic_0.unwrap() == symbol_short!("gas_used")
}).expect("Gas used event should be emitted");

let topics = &gas_event.1;
let operation: Symbol = topics.get(1).unwrap().try_into_val(&env).unwrap();
assert_eq!(operation, symbol_short!("vote"));
}

#[test]
fn test_integration_with_resolve_manual() {
fn test_gas_limit_not_exceeded() {
let env = Env::default();
env.mock_all_auths();
let contract_id = env.register(PredictifyHybrid, ());
let client = crate::PredictifyHybridClient::new(&env, &contract_id);

let admin = Address::generate(&env);

// Initialize
client.initialize(&admin, &None);

// Create a market
let question = String::from_str(&env, "Test Question?");
let outcomes = vec![&env, String::from_str(&env, "Yes"), String::from_str(&env, "No")];
let oracle_config = crate::OracleConfig::none_sentinel(&env);

let market_id = client.create_market(
&admin,
&question,
&outcomes,
&30,
&oracle_config,
&None,
&86400,
&None,
&None,
&None,
);
let operation = symbol_short!("test_op");

// Setup token for staking
let token_admin = Address::generate(&env);
let token_contract = env.register_stellar_asset_contract_v2(token_admin.clone());
let token_id = token_contract.address();

// Set token for staking in contract storage
env.as_contract(&contract_id, || {
env.storage()
.persistent()
.set(&Symbol::new(&env, "TokenID"), &token_id);
// Set limits
GasTracker::set_limit(&env, operation.clone(), 1500, 1500);

// Mock the cost to 1000 (within limits)
GasTracker::set_test_cost(&env, operation.clone(), 1000, 1000);

let marker = GasTracker::start_tracking(&env);
GasTracker::end_tracking(&env, operation, marker);
});

// Fast forward to end of market
env.ledger().set_timestamp(env.ledger().timestamp() + (30 * 24 * 60 * 60) + 1);

// Clear previous events
let _ = env.events().all();

// Resolve manually
client.resolve_market_manual(&admin, &market_id, &String::from_str(&env, "Yes"));

// Verify gas_used event for "res_man"
let events = env.events().all();
let gas_event = events.iter().find(|e| {
let topics = &e.1;
let topic_0: Result<Symbol, _> = topics.get(0).unwrap().try_into_val(&env);
topic_0.is_ok() && topic_0.unwrap() == symbol_short!("gas_used")
}).expect("Gas used event should be emitted");

let topics = &gas_event.1;
let operation: Symbol = topics.get(1).unwrap().try_into_val(&env).unwrap();
assert_eq!(operation, symbol_short!("res_man"));
}
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