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October 31, 2025 04:21
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| # Download foundry installer `foundryup` | |
| > curl -L https://foundry.paradigm.xyz | bash | |
| # Install forge, cast, anvil, chisel | |
| > foundryup | |
| > forge init counter | |
| > cd counter | |
| > forge build | |
| [⠊] Compiling... | |
| [⠒] Compiling 23 files with Solc 0.8.30 | |
| [⠘] Installing Solc version 0.8.30 | |
| [⠆] Successfully installed Solc 0.8.30 | |
| [⠔] Solc 0.8.30 finished in 18.69s | |
| Compiler run successful! | |
| > forge test | |
| [⠊] Compiling... | |
| No files changed, compilation skipped | |
| Ran 2 tests for test/Counter.t.sol:CounterTest | |
| [PASS] testFuzz_SetNumber(uint256) (runs: 256, μ: 28978, ~: 29289) | |
| [PASS] test_Increment() (gas: 28783) | |
| Suite result: ok. 2 passed; 0 failed; 0 skipped; finished in 8.07ms (4.87ms CPU time) | |
| Ran 1 test suite in 134.50ms (8.07ms CPU time): 2 tests passed, 0 failed, 0 skipped (2 total tests) | |
| > forge test -vv | |
| [⠊] Compiling... | |
| No files changed, compilation skipped | |
| Ran 2 tests for test/Counter.t.sol:CounterTest | |
| [PASS] testFuzz_SetNumber(uint256) (runs: 256, μ: 29211, ~: 29289) | |
| [PASS] test_Increment() (gas: 28783) | |
| Suite result: ok. 2 passed; 0 failed; 0 skipped; finished in 9.19ms (6.06ms CPU time) | |
| Ran 1 test suite in 136.58ms (9.19ms CPU time): 2 tests passed, 0 failed, 0 skipped (2 total tests) | |
| > forge test -vvvv | |
| [⠊] Compiling... | |
| No files changed, compilation skipped | |
| Ran 2 tests for test/Counter.t.sol:CounterTest | |
| [PASS] testFuzz_SetNumber(uint256) (runs: 256, μ: 28900, ~: 29289) | |
| Traces: | |
| [29289] CounterTest::testFuzz_SetNumber(1068876234 [1.068e9]) | |
| ├─ [22492] Counter::setNumber(1068876234 [1.068e9]) | |
| │ └─ ← [Stop] | |
| ├─ [424] Counter::number() [staticcall] | |
| │ └─ ← [Return] 1068876234 [1.068e9] | |
| └─ ← [Stop] | |
| [PASS] test_Increment() (gas: 28783) | |
| Traces: | |
| [28783] CounterTest::test_Increment() | |
| ├─ [22418] Counter::increment() | |
| │ └─ ← [Stop] | |
| ├─ [424] Counter::number() [staticcall] | |
| │ └─ ← [Return] 1 | |
| └─ ← [Stop] | |
| Suite result: ok. 2 passed; 0 failed; 0 skipped; finished in 4.23ms (4.02ms CPU time) | |
| Ran 1 test suite in 133.90ms (4.23ms CPU time): 2 tests passed, 0 failed, 0 skipped (2 total tests) | |
| // update the test to fail | |
| > forge test -vvv | |
| [⠊] Compiling... | |
| No files changed, compilation skipped | |
| Ran 2 tests for test/Counter.t.sol:CounterTest | |
| [PASS] testFuzz_SetNumber(uint256) (runs: 256, μ: 29133, ~: 29289) | |
| [FAIL: assertion failed: 1 != 2] test_Increment() (gas: 31867) | |
| Traces: | |
| [31867] CounterTest::test_Increment() | |
| ├─ [22418] Counter::increment() | |
| │ └─ ← [Stop] | |
| ├─ [424] Counter::number() [staticcall] | |
| │ └─ ← [Return] 1 | |
| ├─ [0] VM::assertEq(1, 2) [staticcall] | |
| │ └─ ← [Revert] assertion failed: 1 != 2 | |
| └─ ← [Revert] assertion failed: 1 != 2 | |
| Backtrace: | |
| at VM.assertEq | |
| at CounterTest.test_Increment | |
| Suite result: FAILED. 1 passed; 1 failed; 0 skipped; finished in 4.69ms (3.69ms CPU time) | |
| Ran 1 test suite in 133.04ms (4.69ms CPU time): 1 tests passed, 1 failed, 0 skipped (2 total tests) | |
| Failing tests: | |
| Encountered 1 failing test in test/Counter.t.sol:CounterTest | |
| [FAIL: assertion failed: 1 != 2] test_Increment() (gas: 31867) | |
| Encountered a total of 1 failing tests, 1 tests succeeded |
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