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129 lines
6.2 KiB
129 lines
6.2 KiB
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# solidity-coverage
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Solidity code coverage plugin for [buidler](http://getbuidler.com).
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## What
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![coverage example][22]
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+ For more details about how it works and potential limitations, see [the accompanying article][16].
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+ `solidity-coverage` is also [JoinColony/solcover][17]
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## Installation
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```bash
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$ npm install --save-dev solidity-coverage
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```
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And add the following to your `buidler.config.js`:
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```js
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usePlugin("solidity-coverage");
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module.exports = {
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networks: {
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coverage: {
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url: 'http://localhost:8555'
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}
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},
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}
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```
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## Tasks
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This plugin implements a `coverage` task
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```bash
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npx buidler coverage --network coverage [options]
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```
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| Option <img width=200/> | Example <img width=750/>| Description <img width=1000/> |
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|--------------|------------------------------------|--------------------------------|
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| testfiles | `--testfiles="test/registry/*.ts"` | Test file(s) to run. (Globs must be enclosed by quotes.)|
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| solcoverjs | `--solcoverjs ./../.solcover.js` | Relative path from working directory to config. Useful for monorepo packages that share settings. (Path must be "./" prefixed) |
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| network | `--network development` | Use network settings defined in the Buidler config |
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## Configuration
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Options can be specified in a `.solcover.js` config file located in the root directory of your project.
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**Project Examples:**
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+ Simple: [buidler-metacoin][29]
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+ More complex: [MolochDao/moloch][30]
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**Config Example:**
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```javascript
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module.exports = {
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skipFiles: ['Routers/EtherRouter.sol']
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};
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```
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| Option <img width=200/>| Type <img width=200/> | Default <img width=1300/> | Description <img width=800/> |
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| ------ | ---- | ------- | ----------- |
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| silent | *Boolean* | false | Suppress logging output |
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| client | *Object* | `require("ganache-core")` | Useful if you need a specific ganache version. |
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| providerOptions | *Object* | `{ }` | [ganache-core options][1] |
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| skipFiles | *Array* | `['Migrations.sol']` | Array of contracts or folders (with paths expressed relative to the `contracts` directory) that should be skipped when doing instrumentation. |
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| istanbulFolder | *String* | `./coverage` | Folder location for Istanbul coverage reports. |
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| istanbulReporter | *Array* | `['html', 'lcov', 'text', 'json']` | [Istanbul coverage reporters][2] |
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| mocha | *Object* | `{ }` | [Mocha options][3] to merge into existing mocha config. `grep` and `invert` are useful for skipping certain tests under coverage using tags in the test descriptions.|
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| onServerReady[<sup>*</sup>][14] | *Function* | | Hook run *after* server is launched, *before* the tests execute. Useful if you need to use the Oraclize bridge or have setup scripts which rely on the server's availability. [More...][23] |
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| onCompileComplete[<sup>*</sup>][14] | *Function* | | Hook run *after* compilation completes, *before* tests are run. Useful if you have secondary compilation steps or need to modify built artifacts. [More...][23]|
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| onTestsComplete[<sup>*</sup>][14] | *Function* | | Hook run *after* the tests complete, *before* Istanbul reports are generated. [More...][23]|
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| onIstanbulComplete[<sup>*</sup>][14] | *Function* | | Hook run *after* the Istanbul reports are generated, *before* the ganache server is shut down. Useful if you need to clean resources up. [More...][23]|
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[<sup>*</sup> Advanced use][14]
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## Usage
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+ Coverage runs tests a little more slowly.
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+ Coverage launches its own in-process ganache server.
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+ You can set [ganache options][1] using the `providerOptions` key in your `.solcover.js` [config][15].
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+ Coverage [distorts gas consumption][13]. Tests that check exact gas consumption should be [skipped][24].
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+ :warning: Contracts are compiled **without optimization**. Please report unexpected compilation faults to [issue 417][25]
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## Documentation
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More documentation, including FAQ and information about solidity-coverage's API [is available here][28].
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[1]: https://github.com/trufflesuite/ganache-core#options
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[2]: https://istanbul.js.org/docs/advanced/alternative-reporters/
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[3]: https://mochajs.org/api/mocha
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[4]: https://github.com/sc-forks/solidity-coverage/blob/beta/docs/faq.md#running-out-of-gas
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[5]: https://github.com/sc-forks/solidity-coverage/blob/beta/docs/faq.md#running-out-of-memory
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[6]: https://github.com/sc-forks/solidity-coverage/blob/beta/docs/faq.md#running-out-of-time
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[7]: https://github.com/sc-forks/solidity-coverage/blob/beta/docs/faq.md#continuous-integration
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[8]: https://github.com/sc-forks/solidity-coverage/blob/beta/docs/faq.md#notes-on-branch-coverage
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[9]: https://sc-forks.github.io/metacoin/
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[10]: https://coveralls.io/github/OpenZeppelin/openzeppelin-solidity?branch=master
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[11]: https://github.com/sc-forks/solidity-coverage/tree/beta/test/units
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[12]: https://github.com/sc-forks/solidity-coverage/issues
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[13]: https://github.com/sc-forks/solidity-coverage/blob/beta/docs/faq.md#notes-on-gas-distortion
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[14]: https://github.com/sc-forks/solidity-coverage/blob/beta/docs/advanced.md
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[15]: #config-options
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[16]: https://blog.colony.io/code-coverage-for-solidity-eecfa88668c2
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[17]: https://github.com/JoinColony/solcover
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[18]: https://gitter.im/sc-forks/solidity-coverage?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge
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[19]: https://badge.fury.io/js/solidity-coverage
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[20]: https://circleci.com/gh/sc-forks/solidity-coverage
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[21]: https://codecov.io/gh/sc-forks/solidity-coverage
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[22]: https://cdn-images-1.medium.com/max/800/1*uum8t-31bUaa6dTRVVhj6w.png
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[23]: https://github.com/sc-forks/solidity-coverage/blob/beta/docs/advanced.md#workflow-hooks
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[24]: https://github.com/sc-forks/solidity-coverage/blob/beta/docs/advanced.md#skipping-tests
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[25]: https://github.com/sc-forks/solidity-coverage/issues/417
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[26]: https://buidler.dev/
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[27]: https://www.trufflesuite.com/docs
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[28]: https://github.com/sc-forks/solidity-coverage/blob/beta/README.md
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[29]: https://github.com/sc-forks/buidler-e2e/tree/coverage
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[30]: https://github.com/sc-forks/moloch
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