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124 lines
6.5 KiB
124 lines
6.5 KiB
# solidity-coverage
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[](https://gitter.im/sc-forks/solidity-coverage?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
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[](https://badge.fury.io/js/solidity-coverage)
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[](https://circleci.com/gh/sc-forks/solidity-coverage)
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[](https://codecov.io/gh/sc-forks/solidity-coverage)
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### Code coverage for Solidity testing
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+ For more details about what this is, how it works and potential limitations, see
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[the accompanying article](https://blog.colony.io/code-coverage-for-solidity-eecfa88668c2).
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+ `solidity-coverage` is in development and **its accuracy is unknown.** If you
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find discrepancies between the coverage report and your suite's behavior, please open an
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[issue](https://github.com/sc-forks/solidity-coverage/issues).
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+ `solidity-coverage` is [Solcover](https://github.com/JoinColony/solcover)
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### Install
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```
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$ npm install --save-dev solidity-coverage
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```
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### Usage notes:
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+ Coverage runs tests a little more slowly.
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+ Coverage distorts gas consumption. Tests that check exact gas consumption should be skipped.
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+ Coverage launches its own in-process ganache server. [ganache options](https://github.com/trufflesuite/ganache-core#options) via the `providerOptions` key in your `.solcover.js` config file.
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### Truffle V5
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**Add** "solidity-coverage" to your plugins array in `truffle-config.js`
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```javascript
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module.exports = {
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networks: {...},
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plugins: ["solidity-coverage"]
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}
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```
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**Run**
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```
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truffle run coverage [options]
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```
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### Command Options
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| Option <img width=200/> | Example <img width=700/>| Description <img width=1000/> |
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|--------------|------------------------------------|--------------------------------|
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| file | `--file="test/registry/*.js"` | Filename or glob describing a subset of JS tests 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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| version | | Version info |
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| help | | Usage notes |
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### Config Options
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Additional options can be specified in a `.solcover.js` config file located in
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the root directory of your project.
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**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=700/> | Description <img width=1000/> |
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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](https://github.com/trufflesuite/ganache-core#options) |
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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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| istanbulReporter | *Array* | `['html', 'lcov', 'text']` | [Istanbul coverage reporters](https://istanbul.js.org/docs/advanced/alternative-reporters/) |
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| mocha | *Object* | `{ }` | [Mocha options](https://mochajs.org/api/mocha) 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 | *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 |
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| onTestsComplete | *Function* | | Hook run *after* the tests complete, *before* Istanbul reports are generated. |
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| onIstanbulComplete | *Function* | | Hook run *after* the Istanbul reports are generated, *before* the ganache server is shut down. Useful if you need to clean resources up. |
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### FAQ
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Common problems & questions:
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+ [Running out of gas](https://github.com/sc-forks/solidity-coverage/blob/master/docs/faq.md#running-out-of-gas)
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+ [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)
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+ [Running out of time (in mocha)](https://github.com/sc-forks/solidity-coverage/blob/master/docs/faq.md#running-out-of-time-in-mocha)
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+ [Running in CI](https://github.com/sc-forks/solidity-coverage/blob/master/docs/faq.md#continuous-integration-installing-metacoin-on-travisci-with-coveralls)
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+ [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)
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### Example reports
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+ [metacoin](https://sc-forks.github.io/metacoin/) (Istanbul HTML)
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+ [openzeppelin-solidity](https://coveralls.io/github/OpenZeppelin/openzeppelin-solidity?branch=master) (Coveralls)
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### Contribution Guidelines
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Contributions are welcome! If you're opening a PR that adds features please consider writing some
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[unit tests](https://github.com/sc-forks/solidity-coverage/tree/master/test) for them. Bugs can be
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reported in the [issues](https://github.com/sc-forks/solidity-coverage/issues).
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Set up the development environment with:
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```
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$ git clone https://github.com/sc-forks/solidity-coverage.git
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$ yarn
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```
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### Contributors
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+ [@area](https://github.com/area)
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+ [@cgewecke](https://github.com/cgewecke)
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+ [@adriamb](https://github.com/adriamb)
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+ [@cag](https://github.com/cag)
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+ [@maurelian](https://github.com/maurelian)
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+ [@rudolfix](https://github.com/rudolfix)
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+ [@phiferd](https://github.com/phiferd)
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+ [@e11io](https://github.com/e11io)
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+ [@elenadimitrova](https://github.com/elenadimitrova)
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+ [@ukstv](https://github.com/ukstv)
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+ [@vdrg](https://github.com/vdrg)
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+ [@andresliva](https://github.com/andresilva)
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+ [@DimitarSD](https://github.com/DimitarSD)
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+ [@sohkai](https://github.com/sohkai)
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+ [@bingen](https://github.com/bingen)
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+ [@pinkiebell](https://github.com/pinkiebell)
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+ [@obernardovieira](https://github.com/obernardovieira)
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+ [@angus-hamill](https://github.com/angus-hamill)
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+ [@kandrianov](https://github.com/kandrianov)
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+ [@yxliang01](https://github.com/yxliang01)
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