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118 lines
3.0 KiB
Markdown
118 lines
3.0 KiB
Markdown
[![power-assert][power-assert-banner]][power-assert-url]
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[![Build Status][travis-image]][travis-url]
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[![NPM version][npm-image]][npm-url]
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[![License][license-image]][license-url]
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Produces comparison of expected and actual values of `BinaryExpression`.
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```
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assert(a.name === 'bar')
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--- [string] 'bar'
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+++ [string] a.name
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@@ -1,3 +1,3 @@
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-bar
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```
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USAGE
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---------------------------------------
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`var ComparisonRenderer = require('power-assert-renderer-comparison');`
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#### options.stringify
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| type | default value |
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|:-----------|:--------------|
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| `function` | [stringifier module](https://github.com/twada/stringifier) |
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Function to stringify any target value.
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#### options.maxDepth
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| type | default value |
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|:---------|:--------------|
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| `number` | `2` |
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Depth of object traversal. If object depth is greater than `maxDepth`, compound object (IOW, `Array` or `object`) will be pruned with `#` like `["foo",#Array#,#Object#]`.
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#### options.lineSeparator
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| type | default value |
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|:---------|:--------------|
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| `string` | `"\n"` |
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Line separator in power assert output.
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#### options.anonymous
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| type | default value |
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|:---------|:--------------|
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| `string` | `"Object"` |
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Type name to show when target object is created by anonymous constructor.
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#### options.circular
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| type | default value |
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|:---------|:----------------|
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| `string` | `"#@Circular#"` |
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Name to show when target object is detected as circular structure.
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#### options.diff
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| type | default value |
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|:-----------|:--------------|
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| `function` | [udiff.js](https://github.com/twada/power-assert-runtime/blob/master/packages/power-assert-renderer-comparison/lib/udiff.js) |
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Function to create diff string between two strings.
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#### options.lineDiffThreshold
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| type | default value |
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|:---------|:--------------|
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| `number` | `5` |
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Threshold to show diff at character level or line level. If number of lines in target string is greater than `lineDiffThreshold`, then line diff mode will be used to show diff output.
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INSTALL
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---------------------------------------
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```sh
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$ npm install --save-dev power-assert-renderer-comparison
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```
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AUTHOR
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---------------------------------------
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* [Takuto Wada](https://github.com/twada)
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LICENSE
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---------------------------------------
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Licensed under the [MIT](https://github.com/twada/power-assert-runtime/blob/master/LICENSE) license.
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[power-assert-url]: https://github.com/power-assert-js/power-assert
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[power-assert-banner]: https://raw.githubusercontent.com/power-assert-js/power-assert-js-logo/master/banner/banner-official-fullcolor.png
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[travis-url]: https://travis-ci.org/twada/power-assert-runtime
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[travis-image]: https://secure.travis-ci.org/twada/power-assert-runtime.svg?branch=master
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[npm-url]: https://npmjs.org/package/power-assert-renderer-comparison
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[npm-image]: https://badge.fury.io/js/power-assert-renderer-comparison.svg
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[license-url]: https://github.com/twada/power-assert-runtime/blob/master/LICENSE
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[license-image]: https://img.shields.io/badge/license-MIT-brightgreen.svg
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