797506f09f
Summary:
Currently the jest mock for `ListViewDataSource` has a property called `items` which returns the number of items of the data source. Example from a snapshot:
ListViewDataSource {
"items": 6,
}
If the datablob includes immutable Maps like:
const dataBlob = {
'alpha': immutable.Map({ name: 'Alpha' }),
'beta': immutable.Map({ name: 'Beta' }),
};
then the result is:
ListViewDataSource {
"items": NaN,
}
This PR checks if the properties of the `dataBlob` are immutable Maps and then checks whether they are empty.
The result for the above dataBlob would be:
ListViewDataSource {
"items": 2,
}
Closes https://github.com/facebook/react-native/pull/11567
Differential Revision: D4354977
Pulled By: cpojer
fbshipit-source-id: 9f6bd6ea9896eebd9373344a43ffe97deee5015b
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| .. | ||
| mockComponent.js | ||
| preprocessor.js | ||
| setup.js | ||