CalculatorVW3 is a smart contract written in Solidity that performs main arithmetic operations while showcasing fundamental smart contract development concepts.
The contract keeps track of the most recent calculation result and emits an event for every operation executed. This enables off-chain applications and users to easily monitor contract activity.
This project was built using the Foundry smart contract development framework using core Solidity concept and best practices including: Smart contract structure, Events, Enums, Modifiers, State variables, NatSpec documentation, Foundry project organization, Unit testing
Created using Solidity version 0.8.33
Contract interaction:
The contract supports the following arithmetic operations:
| Operation | Function Name |
|---|---|
| Addition | addition() |
| Subtraction | subtraction() |
| Multiplication | multiplication() |
| Division | division() |
| Power | power() |
Power function uses a basic access control system, owner address is required.
Each function follows the same workflow:
- Performs the arithmetic operation
- Stores the result in the
lastResultstate variable - Emits the
OperationPerformedevent
All unit tests are located in the /unit directory and cover every operation implemented in the contract while fuzzing test is included in the /fuzz directory.
╭-----------------------+-----------------+-----------------+---------------+-----------------╮
| File | % Lines | % Statements | % Branches | % Funcs |
+=============================================================================================+
| src/CalculatorVW3.sol | 100.00% (30/30) | 100.00% (21/21) | 100.00% (3/3) | 100.00% (10/10) |
|-----------------------+-----------------+-----------------+---------------+-----------------|
| Total | 100.00% | 100.00% | 100.00% | 100.00% |
╰-----------------------+-----------------+-----------------+---------------+-----------------╯
Build
forge buildTest
forge test
This project is licensed under the MIT License.