Consider for a simple storage contract named `simple_storage.sol`:
```Javascript
pragma solidity >=0.4.22 <0.7.0;
pragma solidity >=0.4.22 <=0.8.0;
contract SimpleStorage {
uint public storedData;
@ -99,14 +121,14 @@ test file `simple_storage_test.sol` can be as:
```Javascript
pragma solidity >=0.4.22 <0.7.0;
pragma solidity >=0.4.22 <=0.8.0;
import "remix_tests.sol"; // injected by remix-tests
import "./simple_storage.sol";
contract MyTest {
SimpleStorage foo;
function beforeEach() public {
function beforeAll() public {
foo = new SimpleStorage();
}
@ -114,13 +136,17 @@ contract MyTest {
return Assert.equal(foo.get(), 100, "initial value is not correct");
}
function valueIsSet200() public returns (bool) {
foo.set(200);
return Assert.equal(foo.get(), 200, "value is not 200");
function initialValueShouldNotBe200() public returns (bool) {
return Assert.notEqual(foo.get(), 200, "initial value is not correct");
}
function shouldTriggerOneFail() public {
Assert.equal(uint(1), uint(2), "uint test 1 fails");
Assert.notEqual(uint(1), uint(2), "uint test 2 passes");
}
function valueIsNotSet200() public returns (bool) {
return Assert.notEqual(foo.get(), 200, "value is 200");
function shouldTriggerOnePass() public {
Assert.equal(uint(1), uint(1), "uint test 3 passes");
}
}
```
@ -128,53 +154,58 @@ contract MyTest {
Running `simple_storage_test.sol` file will output as:
```
$ remix-tests simple_storage_test.sol
👁 :: Running remix-tests - Unit testing for solidity :: 👁
'creation of library remix_tests.sol:Assert pending...'
◼ MyTest
✓ Initial value should be100
✓ Initial value should not be200
✘ Should trigger one fail
✓ Should trigger one pass
3 passing (0.282s)
1 failing
1) MyTest: Should trigger one fail
error: uint test 1 fails
expected value to be equal to: 2
returned: 1
```
Most of the `remix-tests` options are there to define a custom compiler context. With an extended custom compiler context, execution of above test file will go as:
👁 :: Running remix-tests - Unit testing for solidity :: 👁
[14:58:43] payload method is eth_accounts
[14:58:49] payload method is eth_accounts
[14:58:49] payload method is eth_estimateGas
[14:58:49] payload method is eth_gasPrice
[14:58:49] payload method is eth_sendTransaction
[14:58:49] payload method is eth_getTransactionReceipt
[14:58:49] payload method is eth_getCode
[14:03:18] info: Compiler version set to 0.7.4. Latest version is 0.8.0
[14:03:18] info: EVM set to istanbul
[14:03:18] info: Optimization is enabled
[14:03:18] info: Runs set to 300
Loading remote solc version v0.7.4+commit.3f05b770 ...
'creation of library remix_tests.sol:Assert pending...'
[14:58:49] payload method is eth_estimateGas
[14:58:49] payload method is eth_gasPrice
[14:58:49] payload method is eth_sendTransaction
[14:58:49] payload method is eth_getTransactionReceipt
[14:58:49] payload method is eth_getCode
[14:58:49] payload method is eth_estimateGas
[14:58:49] payload method is eth_gasPrice
[14:58:49] payload method is eth_sendTransaction
[14:58:49] payload method is eth_getTransactionReceipt
[14:58:49] payload method is eth_getCode
◼ MyTest
[14:58:49] payload method is eth_gasPrice
[14:58:49] payload method is eth_sendTransaction
[14:58:50] payload method is eth_getTransactionReceipt
[14:58:50] payload method is eth_gasPrice
[14:58:50] payload method is eth_sendTransaction
[14:58:50] payload method is eth_getTransactionReceipt
✓ Initial value should be100
[14:58:50] payload method is eth_gasPrice
[14:58:50] payload method is eth_sendTransaction
[14:58:50] payload method is eth_getTransactionReceipt
[14:58:50] payload method is eth_gasPrice
[14:58:50] payload method is eth_sendTransaction
[14:58:50] payload method is eth_getTransactionReceipt
✓ Value is set200
[14:58:50] payload method is eth_gasPrice
[14:58:50] payload method is eth_sendTransaction
[14:58:50] payload method is eth_getTransactionReceipt
[14:58:50] payload method is eth_gasPrice
[14:58:50] payload method is eth_sendTransaction
[14:58:50] payload method is eth_getTransactionReceipt
✓ Value is not set200
✓ Initial value should not be200
✘ Should trigger one fail
✓ Should trigger one pass
3 passing (0.316s)
1 failing
1) MyTest: Should trigger one fail
3 passing (0s)
error: uint test 1 fails
expected value to be equal to: 2
returned: 1
```
:point_right: remix-test can also be used for continuous integration testing. See example [Su Squares contract](https://github.com/su-squares/ethereum-contract/tree/e542f37d4f8f6c7b07d90a6554424268384a4186) and [Travis build](https://travis-ci.org/su-squares/ethereum-contract/builds/446186067)
aniket-engg
4 years ago
committed by
Aniket