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solidity-coverage-forked

0.8.1 • Public • Published

solidity-coverage

Gitter chat npm (tag) CircleCI codecov buidler

Code coverage for Solidity testing

coverage example

Requirements

  • Hardhat >= 2.11.0

Install

$ yarn add solidity-coverage --dev

Require the plugin in hardhat.config.js (Hardhat docs)

require('solidity-coverage')

Or, if you are using TypeScript, add this to your hardhat.config.ts:

import 'solidity-coverage'

Resources:

Run

npx hardhat coverage [command-options]

Command Options

Option Example Description
testfiles --testfiles "test/registry/*.ts" Test file(s) to run. (Globs must be enclosed by quotes and use globby matching patterns)
solcoverjs --solcoverjs ./../.solcover.js Relative path from working directory to config. Useful for monorepo packages that share settings. (Path must be "./" prefixed)
network --network development Use network settings defined in the Hardhat config
temp* --temp build ⚠️ Caution ⚠️ Path to a disposable folder to store compilation artifacts in. Useful when your test setup scripts include hard-coded paths to a build directory. More...
matrix --matrix Generate a JSON object that maps which mocha tests hit which lines of code. (Useful as an input for some fuzzing, mutation testing and fault-localization algorithms.) More...

* Advanced use

Config Options

Additional options can be specified in a .solcover.js config file located in the root directory of your project.

Example:

module.exports = {
  skipFiles: ['Routers/EtherRouter.sol']
};
Option Type Default Description
silent Boolean false Suppress logging output
skipFiles Array ['Migrations.sol'] Array of contracts or folders (with paths expressed relative to the contracts directory) that should be skipped when doing instrumentation.
measureStatementCoverage boolean true Computes statement (in addition to line) coverage. More...
measureFunctionCoverage boolean true Computes function coverage. More...
measureModifierCoverage boolean true Computes each modifier invocation as a code branch. More...
modifierWhitelist String[] [] List of modifier names (ex: "onlyOwner") to exclude from branch measurement. (Useful for modifiers which prepare something instead of acting as a gate.))
matrixOutputPath String ./testMatrix.json Relative path to write test matrix JSON object to. More...
mochaJsonOutputPath String ./mochaOutput.json Relative path to write mocha JSON reporter object to. More...
abiOutputPath String ./humanReadableAbis.json Relative path to write diff-able ABI data to
istanbulFolder String ./coverage Folder location for Istanbul coverage reports.
istanbulReporter Array ['html', 'lcov', 'text', 'json'] Istanbul coverage reporters
mocha Object { } Mocha options to merge into existing mocha config. grep and invert are useful for skipping certain tests under coverage using tags in the test descriptions.
coverageContractsTemp String .coverage_contracts Temporary folder location for instrumented contracts - Note that this directory will automatically be deleted when coverage completes.
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. More...
onPreCompile* Function Hook run after filesystem and compiler configuration is applied, before the compiler is run. Can be used with the other hooks to be able to generate coverage reports on non-standard / customized directory structures, as well as contracts with absolute import paths. More...
onCompileComplete* Function Hook run after compilation completes, before tests are run. Useful if you have secondary compilation steps or need to modify built artifacts. More...
onTestsComplete* Function Hook run after the tests complete, before Istanbul reports are generated. More...
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. More...
configureYulOptimizer Boolean false (Experimental) Setting to true should resolve "stack too deep" compiler errors in large projects using ABIEncoderV2
solcOptimizerDetails Object undefined (Experimental) Must be used in combination with configureYulOptimizer. Allows you configure solc's optimizer details. Useful if the default remedy for stack-too-deep errors doesn't work in your case (See FAQ below).
client Object require("ganache-core") Ganache only: useful if you need a specific ganache version
providerOptions Object { } Ganache only: ganache-core options

* Advanced use

Viewing the reports:

  • You can find the Istanbul reports written to the ./coverage/ folder generated in your root directory.

API

Solidity-coverage's core methods and many utilities are available as an API.

const CoverageAPI = require('solidity-coverage/api');

Documentation available here.

Detecting solidity-coverage from another task

If you're writing another plugin or task, it can be helpful to detect whether coverage is running or not. The coverage plugin sets a boolean variable on the globally injected hardhat environment object for this purpose.

hre.__SOLIDITY_COVERAGE_RUNNING === true

FAQ

Common problems & questions:

Example reports

Contribution Guidelines

Contributions are welcome! If you're opening a PR that adds features or options please consider writing full unit tests for them. (We've built simple fixtures for almost everything and are happy to add some for your case if necessary).

Set up the development environment with:

$ git clone https://github.com/sc-forks/solidity-coverage.git
$ yarn

Contributors

Readme

Keywords

none

Package Sidebar

Install

npm i solidity-coverage-forked

Repository

github.com/sc-forks/solidity-coverage

Homepage

github.com/sc-forks/solidity-coverage

Weekly Downloads

0

Version

0.8.1

License

ISC

Unpacked Size

149 kB

Total Files

29

Last publish

Collaborators

  • ronyang
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