feat(handlers): prevent default behavior with preventDownshiftDefault #358
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,45 @@ | ||
| import {composeEventHandlers} from '../utils' | ||
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| test('prevent default handlers when defaultPrevented is true', () => { | ||
| const handler = composeEventHandlers( | ||
| e => { | ||
| e.defaultPrevented = true | ||
| }, | ||
| () => { | ||
|
There was a problem hiding this comment. Rather than this, could we use Jest mock functions (via |
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| throw new Error( | ||
| 'preventing default should prevent default downshift behavior', | ||
| ) | ||
| }, | ||
| ) | ||
| handler({}) | ||
| }) | ||
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| test('prevent default handlers when defaultDownshiftPrevented is true', () => { | ||
| const handler = composeEventHandlers( | ||
| e => { | ||
| e.preventDownshiftDefault = true | ||
| }, | ||
| () => { | ||
| throw new Error( | ||
| 'setting defaultDownshiftPrevented = true should prevent default downshift behavior', | ||
| ) | ||
| }, | ||
| ) | ||
| handler({}) | ||
| }) | ||
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| test('call default handler when defaultDownshiftPrevented and defaultPrevented are false', () => { | ||
| let defaultCalled = false | ||
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| const handler = composeEventHandlers( | ||
| () => {}, | ||
| () => { | ||
| defaultCalled = true | ||
| }, | ||
| ) | ||
| handler({}) | ||
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| if (!defaultCalled) { | ||
| throw new Error("default handler not called when default wasn't prevented") | ||
| } | ||
| }) | ||
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Maybe we should add a simple example here: