Adapter for unexpected-htmllike for react-test-renderer

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001.0.27 years ago8 years agoMinified + gzip package size for unexpected-htmllike-testrenderer-adapter in KB


This is the JSX / ReactElement adapter for unexpected-htmllike
You need to instantiate a new instance of the adapter in order to use it. With the instance, you can set options (using setOptions({ ... })) to influence how certain things are returned to unexpected-htmllike.
var UnexpectedHtmlLike = require('unexpected-htmllike');
var TestRendererAdapter = require('unexpected-htmllike-testrenderer-adapter');

var adapter = new TestRendererAdapter();

var jsxHtmlLike = new UnexpectedHtmlLike(adapter);

// Now you can use jsxHtmlLike.diff(...) etc


Available options:
  • concatTextContent - (default false) set this to true, to concatenate text content items.
  • convertToString - (default false) converts the content to strings. This is useful when comparing against a rendered
result, where only strings are available, but you want to maintain the separate items
  • convertMultipleRawToStrings - (default: false) - converts content to strings, when there is more than one content item.
This is done specifically for comparing with rendered react elements, where the type is the original for single children, but is already converted to a string when there are multiple raw siblings
For example, with the following JSX, when rendered with the react-test-renderer
  Button was clicked {this.state.clickCount} times

The <button> will have 3 content items:
(Let's say this.state.clickCount === 10)
[ 'Button was clicked ', 10, ' times' ]
If you're diffing with unexpected-htmllike, these 3 content items must match exactly. When setting concatTextContent to true, this would result in a single string content item
[ 'Button was clicked 10 times' ]
If the convertToString option is true, the following is returned
[ 'Button was clicked ', '10', ' times' ]
The options take immediate effect, and can be changed per instance of the adapter (hence, you could, although not recommended), set the options differently for the actualAdapter and the expectedAdapter for unexpected-htmllike