Foundry tests are written in Solidity and follow a specific naming convention. Test functions must start with test and test contracts should inherit from Test:
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.13;
import "forge-std/Test.sol";
import "../src/Counter.sol";
contract CounterTest is Test {
Counter public counter;
function setUp() public {
counter = new Counter();
}
function testIncrement() public {
counter.increment();
assertEq(counter.number(), 1);
}
}
Run tests using:
forge test # Run all tests
forge test --match-test testIncrement # Run specific test
forge test -vvv # Verbose output
Rewriting in plainer words…
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