test(drive): test various token distribution algorithms

packages/rs-dpp/src/data_contract/associated_token/token_perpetual_distribution/distribution_function/evaluate.rs

@@ -39,7 +39,7 @@ impl DistributionFunction {
                 z = z ^ (z >> 31);
 
                 // Calculate the range size: (max - min + 1)
-                let range = max.wrapping_sub(*min).wrapping_add(1);
+                let range = max.saturating_sub(*min).saturating_add(1);
 
                 // Map the pseudorandom number into the desired range.
                 let value = min.wrapping_add(z % range);

packages/rs-dpp/src/data_contract/associated_token/token_perpetual_distribution/distribution_function/mod.rs

@@ -85,6 +85,8 @@ pub enum DistributionFunction {
     /// f(x) = n * (1 - (decrease_per_interval_numerator / decrease_per_interval_denominator))^((x - s) / step_count)
     /// ```
     ///
+    /// For `x <= s`, `f(x) = n`
+    ///
     /// # Parameters
     /// - `step_count`: The number of periods between each step.
     /// - `decrease_per_interval_numerator` and `decrease_per_interval_denominator`: Define the reduction factor per step.

packages/rs-drive-abci/Cargo.toml

@@ -103,7 +103,6 @@ assert_matches = "1.5.0"
 drive-abci = { path = ".", features = ["testing-config", "mocks"] }
 bls-signatures = { git = "https://github.com/dashpay/bls-signatures", tag = "1.3.3" }
 mockall = { version = "0.13" }
-
 # For tests of grovedb verify
 rocksdb = { version = "0.23.0" }
 integer-encoding = { version = "4.0.0" }