Merge pull request #8 from mootz12/main

Update Internal Math to i256 and Add More Tests

Cargo.toml

@@ -18,7 +18,7 @@ codegen-units = 1
 lto = true
 
 [workspace.dependencies.soroban-sdk]
-version = "20.3.1"
+version = "20.5.0"
 
 [workspace.dependencies.soroban-token-sdk]
-version = "20.3.1"
+version = "20.5.0"

contracts/Cargo.toml

@@ -1,17 +1,17 @@
 [package]
 name = "contracts"
 description = "Comet Contracts"
-version = "0.0.7"
+version = "0.1.0"
 edition = "2021"
 
 [lib]
 crate-type = ["cdylib"]
 
 [dependencies]
-soroban-fixed-point-math = "1.0.0"
+soroban-fixed-point-math = "1.1.0"
 soroban-sdk = { workspace = true }
 soroban-token-sdk = { workspace = true }
 
 [dev-dependencies]
 soroban-sdk = { workspace = true, features = ["testutils"] }
-sep-41-token = { version = "0.3.0", features = ["testutils"] }
+sep-41-token = { version = "1.0.0", features = ["testutils"] }

contracts/src/c_consts.rs

@@ -1,20 +1,23 @@
 //! Comet Pool Constants
 
-use soroban_fixed_point_math::STROOP;
-
-pub const BONE: i128 = STROOP as i128;
+/// c_math 256 bit constants
+/// kept as i128 to avoid requiring `env` to define constants
+pub const BONE: i128 = 10i128.pow(18);
 pub const MIN_CPOW_BASE: i128 = 1;
 pub const MAX_CPOW_BASE: i128 = (2 * BONE) - 1;
-pub const CPOW_PRECISION: i128 = 1_000000_i128;
-pub const EXIT_FEE: i128 = 0;
-pub const MAX_TOTAL_WEIGHT: i128 = BONE * 50;
-pub const INIT_POOL_SUPPLY: i128 = BONE * 100;
-pub const MIN_FEE: i128 = 10;
-pub const MAX_FEE: i128 = 1_000000_i128;
-pub const MAX_IN_RATIO: i128 = BONE / 2;
-pub const MAX_OUT_RATIO: i128 = (BONE / 3) + 1;
+pub const CPOW_PRECISION: i128 = 10i128.pow(8);
+
+/// constants
+pub const STROOP: i128 = 10i128.pow(7);
+pub const STROOP_SCALAR: i128 = 10i128.pow(11);
+pub const MAX_IN_RATIO: i128 = (STROOP / 3) + 1;
+pub const MAX_OUT_RATIO: i128 = (STROOP / 3) + 1;
+pub const INIT_POOL_SUPPLY: i128 = STROOP * 100;
+pub const MIN_FEE: i128 = 10; // 0.0001%
+pub const MAX_FEE: i128 = STROOP / 10; // 10%
 pub const MIN_BOUND_TOKENS: u32 = 2;
 pub const MAX_BOUND_TOKENS: u32 = 8;
-pub const MIN_WEIGHT: i128 = BONE;
-pub const MAX_WEIGHT: i128 = BONE * 50;
-pub const MIN_BALANCE: i128 = (1_0000000 / 1_00000) as i128;
+pub const MAX_TOTAL_WEIGHT: i128 = STROOP * 50;
+pub const MIN_WEIGHT: i128 = STROOP / 10; // 10%
+pub const MAX_WEIGHT: i128 = MIN_WEIGHT * 9; // 90%
+pub const MIN_BALANCE: i128 = 100;