You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
134 lines
7.8 KiB
134 lines
7.8 KiB
# solidity-coverage
|
|
[](https://badge.fury.io/js/solidity-coverage)
|
|
[](https://circleci.com/gh/sc-forks/solidity-coverage)
|
|
[](https://codecov.io/gh/sc-forks/solidity-coverage)
|
|
[](https://waffle.io/sc-forks/solidity-coverage?utm_source=badge)
|
|
|
|
### Code coverage for Solidity testing
|
|
|
|
|
|
+ For more details about what this is, how it works and potential limitations, see
|
|
[the accompanying article](https://blog.colony.io/code-coverage-for-solidity-eecfa88668c2).
|
|
+ `solidity-coverage` is in development and **its accuracy is unknown.** If you
|
|
find discrepancies between the coverage report and your suite's behavior, please open an
|
|
[issue](https://github.com/sc-forks/solidity-coverage/issues).
|
|
+ `solidity-coverage` is [Solcover](https://github.com/JoinColony/solcover)
|
|
|
|
### Install
|
|
```
|
|
$ npm install --save-dev solidity-coverage // Post-Byzantium fork, testrpc >= 6.0.1
|
|
|
|
$ npm install --save-dev solidity-coverage@0.2.5 // Pre-Byzantium fork, testrpc ~ 4.0.0
|
|
```
|
|
|
|
**Important:** `v0.4.0` targets `solidity >= pragma 0.4.18` and introduces a breaking
|
|
change for projects that rely on Truffle's simplified contract method interface. All `constant`
|
|
`view` or `pure` methods now need to be explicitly invoked using `.call`. e.g:
|
|
```
|
|
myMethod.getViewValue(param) // Old way
|
|
myMethod.getViewValue.call(param) // New way
|
|
```
|
|
Methods invoked the old way will return a transaction object instead of a value when run under coverage.
|
|
See [issue #146](https://github.com/sc-forks/solidity-coverage/issues/146#issuecomment-342781441) for a more
|
|
detailed explanation. `0.3.5` is an intermediate release that contains the Byzantium
|
|
fork upgrade but does not require other code changes as long as your pragma is `<= 0.4.17`.
|
|
|
|
### Run
|
|
```
|
|
$ ./node_modules/.bin/solidity-coverage
|
|
```
|
|
|
|
Tests run signficantly slower while coverage is being generated. A 1 to 2 minute delay
|
|
between the end of Truffle compilation and the beginning of test execution is possible if your
|
|
test suite is large. Large Solidity files can also take a while to instrument.
|
|
|
|
### Network Configuration
|
|
|
|
By default, solidity-coverage generates a stub `truffle.js` that accomodates its special gas needs and
|
|
connects to a modified version of testrpc on port 8555. If your tests will run on the development network
|
|
using a standard `truffle.js` and testrpc instance, you shouldn't have to do any configuration. If your tests depend on logic or special options added to `truffle.js` you should declare a coverage network there following the example below.
|
|
|
|
**Example**
|
|
```javascript
|
|
module.exports = {
|
|
networks: {
|
|
development: {
|
|
host: "localhost",
|
|
port: 8545,
|
|
network_id: "*"
|
|
},
|
|
coverage: {
|
|
host: "localhost",
|
|
network_id: "*",
|
|
port: 8555, // <-- If you change this, also set the port option in .solcover.js.
|
|
gas: 0xfffffffffff, // <-- Use this high gas value
|
|
gasPrice: 0x01 // <-- Use this low gas price
|
|
},
|
|
...etc...
|
|
}
|
|
};
|
|
```
|
|
### Options
|
|
|
|
You can also create a `.solcover.js` config file in the root directory of your project and specify
|
|
additional options if necessary:
|
|
|
|
**Example:**
|
|
```javascript
|
|
module.exports = {
|
|
port: 6545,
|
|
testrpcOptions: '-p 6545 -u 0x54fd80d6ae7584d8e9a19fe1df43f04e5282cc43',
|
|
testCommand: 'mocha --timeout 5000',
|
|
norpc: true,
|
|
dir: './secretDirectory',
|
|
skipFiles: ['Routers/EtherRouter.sol']
|
|
};
|
|
```
|
|
|
|
|
|
| Option | Type | Default | Description |
|
|
| ------ | ---- | ------- | ----------- |
|
|
| accounts | *Number* | 35 | Number of accounts to launch testrpc with. |
|
|
| port | *Number* | 8555 | Port to run testrpc on / have truffle connect to |
|
|
| norpc | *Boolean* | false | Prevent solidity-coverage from launching its own testrpc. Useful if you are managing a complex test suite with a [shell script](https://github.com/OpenZeppelin/zeppelin-solidity/blob/ed872ca0a11c4926f8bb91dd103bea1378a3384c/scripts/coverage.sh) |
|
|
| testCommand | *String* | `truffle test` | Run an arbitrary test command. ex: `mocha --timeout 5000`. NB: Also set the `port` option to whatever your tests require (probably 8545). |
|
|
| testrpcOptions | *String* | `--port 8555` | options to append to a command line invocation of testrpc. NB: Using this overwrites the defaults so always specify a port in this string *and* in the `port` option |
|
|
| copyNodeModules | *Boolean* | false | Copies `node_modules` into the coverage environment. May significantly increase the time for coverage to complete if enabled. Useful if your contracts import solidity files from an npm installed package. |
|
|
| skipFiles | *Array* | `['Migrations.sol']` | Array of contracts (with paths expressed relative to the `contracts` directory) that should be skipped when doing instrumentation. `Migrations.sol` is skipped by default, and does not need to be added to this configuration option if it is used. |
|
|
| dir | *String* | `.` | Solidity-coverage copies all the assets in your root directory (except `node_modules`) to a special folder where it instruments the contracts and executes the tests. `dir` allows you to define a relative path from the root directory to those assets. Useful if your contracts & tests are within their own folder as part of a larger project.|
|
|
|
|
### FAQ
|
|
|
|
Solutions to common issues people run into using this tool:
|
|
|
|
+ [Running out of gas](https://github.com/sc-forks/solidity-coverage/blob/master/docs/faq.md#running-out-of-gas)
|
|
+ [Running out of memory (locally and in CI)](https://github.com/sc-forks/solidity-coverage/blob/master/docs/faq.md#running-out-of-memory-locally-and-in-ci)
|
|
+ [Running out of time (in mocha)](https://github.com/sc-forks/solidity-coverage/blob/master/docs/faq.md#running-out-of-time-in-mocha)
|
|
+ [Running on windows](https://github.com/sc-forks/solidity-coverage/blob/master/docs/faq.md#running-on-windows)
|
|
+ [Running testrpc-sc on its own](https://github.com/sc-forks/solidity-coverage/blob/master/docs/faq.md#running-testrpc-sc-on-its-own)
|
|
+ [Using alongside HDWalletProvider](https://github.com/sc-forks/solidity-coverage/blob/master/docs/faq.md#using-alongside-hdwalletprovider)
|
|
+ [Integrating into CI](https://github.com/sc-forks/solidity-coverage/blob/master/docs/faq.md#continuous-integration-installing-metacoin-on-travisci-with-coveralls)
|
|
+ [Why are asserts and requires highlighted as branch points?](https://github.com/sc-forks/solidity-coverage/blob/master/docs/faq.md#why-has-my-branch-coverage-decreased-why-is-assert-being-shown-as-a-branch-point)
|
|
+ [Why are `send` and `transfer` throwing in my tests?](https://github.com/sc-forks/solidity-coverage/blob/master/docs/faq.md#why-are-send-and-transfer-throwing)
|
|
|
|
|
|
### Example reports
|
|
+ [metacoin](https://sc-forks.github.io/metacoin/) (Istanbul HTML)
|
|
+ [zeppelin-solidity](https://coveralls.io/github/OpenZeppelin/zeppelin-solidity?branch=master) (Coveralls)
|
|
+ [gnosis-contracts](https://codecov.io/gh/gnosis/gnosis-contracts/tree/master/contracts) (Codecov)
|
|
|
|
### Contribution Guidelines
|
|
|
|
Contributions are welcome! If you're opening a PR that adds features please consider writing some
|
|
[unit tests](https://github.com/sc-forks/solidity-coverage/tree/master/test) for them. You could
|
|
also lint your submission with `npm run lint`. Bugs can be reported in the
|
|
[issues](https://github.com/sc-forks/solidity-coverage/issues).
|
|
|
|
### Contributors
|
|
+ [@area](https://github.com/area)
|
|
+ [@cgewecke](https://github.com/cgewecke)
|
|
+ [@adriamb](https://github.com/adriamb)
|
|
+ [@cag](https://github.com/cag)
|
|
+ [@maurelian](https://github.com/maurelian)
|
|
+ [@rudolfix](https://github.com/rudolfix)
|
|
+ [@phiferd](https://github.com/phiferd)
|
|
|