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# SolCover
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[](https://codecov.io/gh/JoinColony/solcover)
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### Code coverage for Solidity testing
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For more details about what this is, how it work and potential limitations, see
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[the accompanying article](https://blog.colony.io/code-coverage-for-solidity-eecfa88668c2).
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This branch is an attempt to prepare solcover for npm publication and simplify its use as a
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command line utility. Gas cost issues etc are managed under the hood if your tests are able to run
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using the default development network and the tool cleans up after itself if (when) it crashes.
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### Install
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```
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$ npm install --save-dev https://github.com/JoinColony/solcover.git#truffle3
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```
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### Run
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```
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$ ./node_modules/solcover/exec.js
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```
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Tests run signficantly slower while coverage is being generated. A 1 to 2 minute delay
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between the end of Truffle compilation and the beginning of test execution is not impossible if your
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test suite is large.
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Note that if you have hardcoded gas costs into your tests some of them may fail when using SolCover.
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This is because the instrumentation process increases the gas costs for using the contracts, due to
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the extra events. If this is the case, then the coverage may be incomplete. To avoid this, using
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`estimateGas` to estimate your gas costs should be more resilient in most cases.
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### TODO
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- [ ] Turn into a true command line tool, rather than just a hacked-together script
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- [ ] Allow the use of a dedicated coverage network in `truffle.js`
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- [ ] Release on NPM
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- [ ] Support for arbitrary testing commands
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- [ ] [You tell me](http://github.com/JoinColony/solcover/issues)
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