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jsx-curly-spacing.js
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jsx-curly-spacing.js
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/**
* @fileoverview Enforce or disallow spaces inside of curly braces in JSX attributes.
* @author Yannick Croissant
* @author Erik Wendel
*/
'use strict';
// ------------------------------------------------------------------------------
// Requirements
// ------------------------------------------------------------------------------
const rule = require('../../../lib/rules/jsx-curly-spacing');
const RuleTester = require('eslint').RuleTester;
const parserOptions = {
ecmaVersion: 8,
sourceType: 'module',
ecmaFeatures: {
experimentalObjectRestSpread: true,
jsx: true
}
};
// ------------------------------------------------------------------------------
// Tests
// ------------------------------------------------------------------------------
const ruleTester = new RuleTester({parserOptions});
ruleTester.run('jsx-curly-spacing', rule, {
valid: [{
code: '<App foo={bar} />;'
}, {
code: '<App foo={bar}>{bar}</App>;'
}, {
code: '<App foo={bar}>{ bar }</App>;'
}, {
code: [
'<App foo={',
'bar',
'}>',
'{bar}',
'</App>;'
].join('\n')
}, {
code: '<App foo={{ bar: true, baz: true }}>{{ bar: true, baz: true }}</App>;'
}, {
code: '<App foo={{ bar: true, baz: true }}>{ { bar: true, baz: true } }</App>;'
}, {
code: [
'<App foo={',
'{ bar: true, baz: true }',
'} />;'
].join('\n')
}, {
code: [
'<App foo={',
'{ bar: true, baz: true }',
'}>',
'{{ bar: true, baz: true }}',
'</App>;'
].join('\n')
}, {
code: '<App>{ foo /* comment */ }</App>'
}, {
code: '<App>{ /* comment */ foo }</App>'
}, {
code: '<App foo={bar} />;',
options: [{attributes: true}]
}, {
code: [
'<App foo={',
'bar',
'} />;'
].join('\n'),
options: [{attributes: true}]
}, {
code: '<App foo={{ bar: true, baz: true }} />;',
options: [{attributes: true}]
}, {
code: [
'<App foo={',
'{ bar: true, baz: true }',
'} />;'
].join('\n'),
options: [{attributes: true}]
}, {
code: '<App foo={bar} />;',
options: [{attributes: false}]
}, {
code: [
'<App foo={',
'bar',
'} />;'
].join('\n'),
options: [{attributes: false}]
}, {
code: '<App foo={{ bar: true, baz: true }} />;',
options: [{attributes: false}]
}, {
code: [
'<App foo={',
'{ bar: true, baz: true }',
'} />;'
].join('\n'),
options: [{attributes: false}]
}, {
code: '<App foo={ bar } />;',
options: [{attributes: false}]
}, {
code: '<App foo={ { bar: true, baz: true } } />;',
options: [{attributes: false}]
}, {
code: '<App>{bar}</App>;',
options: [{children: true}]
}, {
code: [
'<App>{',
'bar',
'}</App>;'
].join('\n'),
options: [{children: true}]
}, {
code: '<App>{{ bar: true, baz: true }}</App>;',
options: [{children: true}]
}, {
code: [
'<App>{',
'{ bar: true, baz: true }',
'}</App>;'
].join('\n'),
options: [{children: true}]
}, {
code: '<App>{bar}</App>;',
options: [{children: false}]
}, {
code: [
'<App>{',
'bar',
'}</App>;'
].join('\n'),
options: [{children: false}]
}, {
code: '<App>{{ bar: true, baz: true }}</App>;',
options: [{children: false}]
}, {
code: [
'<App>{',
'{ bar: true, baz: true }',
'}</App>;'
].join('\n'),
options: [{children: false}]
}, {
code: '<App>{ bar }</App>;',
options: [{children: false}]
}, {
code: '<App>{ { bar: true, baz: true } }</App>;',
options: [{children: false}]
}, {
code: '<App foo={bar} />;',
options: [{when: 'never'}]
}, {
code: '<App foo={bar} />;',
options: [{when: 'never', allowMultiline: false}]
}, {
code: '<App foo={bar} />;',
options: [{when: 'never', allowMultiline: true}]
}, {
code: [
'<App foo={',
'bar',
'} />;'
].join('\n'),
options: [{when: 'never', allowMultiline: true}]
}, {
code: '<App foo={{ bar: true, baz: true }} />;',
options: [{when: 'never', spacing: {objectLiterals: 'never'}}]
}, {
code: [
'<App foo={',
'{ bar: true, baz: true }',
'} />;'
].join('\n'),
options: [{when: 'never', spacing: {objectLiterals: 'never'}}]
}, {
code: '<App foo={ bar } />;',
options: [{when: 'always'}]
}, {
code: '<App foo={ bar } />;',
options: [{when: 'always', allowMultiline: false}]
}, {
code: '<App foo={ bar } />;',
options: [{when: 'always', allowMultiline: true}]
}, {
code: [
'<App foo={',
'bar',
'} />;'
].join('\n'),
options: [{when: 'always', allowMultiline: true}]
}, {
code: '<App foo={{ bar: true, baz: true }} />;',
options: [{when: 'always', spacing: {objectLiterals: 'never'}}]
}, {
code: [
'<App foo={',
'{ bar: true, baz: true }',
'} />;'
].join('\n'),
options: [{when: 'always', spacing: {objectLiterals: 'never'}}]
}, {
code: '<App foo={bar} />;',
options: [{attributes: {when: 'never'}}]
}, {
code: '<App foo={ bar } />;',
options: [{attributes: {when: 'always'}}]
}, {
code: '<App foo={ bar } />;',
options: [{attributes: {when: 'always', allowMultiline: false}}]
}, {
code: '<App foo={{ bar:baz }} />;',
options: [{attributes: {when: 'never'}}]
}, {
code: [
'<App foo={',
'{ bar: true, baz: true }',
'} />;'
].join('\n'),
options: [{attributes: {when: 'never'}}]
}, {
code: '<App foo={ {bar:baz} } />;',
options: [{attributes: {when: 'always'}}]
}, {
code: [
'<App foo={',
'{ bar: true, baz: true }',
'} />;'
].join('\n'),
options: [{attributes: {when: 'always'}}]
}, {
code: [
'<App foo={',
'bar',
'} />;'
].join('\n'),
options: [{attributes: {when: 'always'}}]
}, {
code: [
'<App foo={',
'bar',
'} />;'
].join('\n'),
options: [{attributes: {when: 'always', allowMultiline: true}}]
}, {
code: [
'<App foo={',
'bar',
'} />;'
].join('\n'),
options: [{attributes: {when: 'never'}}]
}, {
code: [
'<App foo={',
'bar',
'} />;'
].join('\n'),
options: [{attributes: {when: 'never', allowMultiline: true}}]
}, {
code: '<App foo={bar/* comment */} />;',
options: [{attributes: {when: 'never'}}]
}, {
code: '<App foo={ bar } />;',
options: [{attributes: {when: 'always', spacing: {}}}]
}, {
code: [
'<App foo={',
'bar',
'} />;'
].join('\n'),
options: [{attributes: {when: 'always', spacing: {}}}]
}, {
code: '<App foo={{ bar: true, baz: true }} />;',
options: [{attributes: {when: 'always', spacing: {objectLiterals: 'never'}}}]
}, {
code: [
'<App foo={',
'{ bar: true, baz: true }',
'} />;'
].join('\n'),
options: [{attributes: {when: 'always', spacing: {objectLiterals: 'never'}}}]
}, {
code: '<App>{bar}</App>;',
options: [{children: {when: 'never'}}]
}, {
code: '<App>{ bar }</App>;',
options: [{children: {when: 'always'}}]
}, {
code: '<App>{ bar }</App>;',
options: [{children: {when: 'always', allowMultiline: false}}]
}, {
code: '<App>{{ bar:baz }}</App>;',
options: [{children: {when: 'never'}}]
}, {
code: [
'<App>{',
'{ bar: true, baz: true }',
'}</App>;'
].join('\n'),
options: [{children: {when: 'never'}}]
}, {
code: '<App>{ {bar:baz} }</App>;',
options: [{children: {when: 'always'}}]
}, {
code: [
'<App>{',
'{ bar: true, baz: true }',
'}</App>;'
].join('\n'),
options: [{children: {when: 'always'}}]
}, {
code: [
'<App>{',
'bar',
'}</App>;'
].join('\n'),
options: [{children: {when: 'always'}}]
}, {
code: [
'<App>{',
'bar',
'}</App>;'
].join('\n'),
options: [{children: {when: 'always', allowMultiline: true}}]
}, {
code: [
'<App>{',
'bar',
'}</App>;'
].join('\n'),
options: [{children: {when: 'never'}}]
}, {
code: [
'<App>{',
'bar',
'}</App>;'
].join('\n'),
options: [{children: {when: 'never', allowMultiline: true}}]
}, {
code: [
'<App>{/* comment */}</App>;'
].join('\n'),
options: [{children: {when: 'never'}}]
}, {
code: '<App>{bar/* comment */}</App>;',
options: [{children: {when: 'never'}}]
}, {
code: '<App>{ bar }</App>;',
options: [{children: {when: 'always', spacing: {}}}]
}, {
code: [
'<App>{',
'bar',
'}</App>;'
].join('\n'),
options: [{children: {when: 'always', spacing: {}}}]
}, {
code: '<App>{{ bar: true, baz: true }}</App>;',
options: [{children: {when: 'always', spacing: {objectLiterals: 'never'}}}]
}, {
code: [
'<App>{',
'{ bar: true, baz: true }',
'}</App>;'
].join('\n'),
options: [{children: {when: 'always', spacing: {objectLiterals: 'never'}}}]
}, {
code: '<App {...bar} />;'
}, {
code: '<App {...bar} />;',
options: [{attributes: {when: 'never'}}]
}, {
code: '<App { ...bar } />;',
options: [{attributes: {when: 'always'}}]
}, {
code: '<App { ...bar } />;',
options: [{attributes: {when: 'always', allowMultiline: false}}]
}, {
code: [
'<App {',
'...bar',
'} />;'
].join('\n'),
options: [{attributes: {when: 'always'}}]
}, {
code: [
'<App {',
'...bar',
'} />;'
].join('\n'),
options: [{attributes: {when: 'always', allowMultiline: true}}]
}, {
code: [
'<App {',
'...bar',
'} />;'
].join('\n'),
options: [{attributes: {when: 'never'}}]
}, {
code: [
'<App {',
'...bar',
'} />;'
].join('\n'),
options: [{attributes: {when: 'never', allowMultiline: true}}]
}, {
code: '<App {...bar/* comment */} />;',
options: [{attributes: {when: 'never'}}]
}, {
code: '<App foo={bar} {...baz} />;'
}, {
code: '<App foo={bar} {...baz} />;',
options: [{attributes: {when: 'never'}}]
}, {
code: '<App foo={ bar } { ...baz } />;',
options: [{attributes: {when: 'always'}}]
}, {
code: '<App foo={ bar } { ...baz } />;',
options: [{attributes: {when: 'always', allowMultiline: false}}]
}, {
code: '<App foo={{ bar:baz }} {...baz} />;',
options: [{attributes: {when: 'never'}}]
}, {
code: '<App foo={ {bar:baz} } { ...baz } />;',
options: [{attributes: {when: 'always'}}]
}, {
code: [
'<App foo={',
'bar',
'} {',
'...bar',
'} />;'
].join('\n'),
options: [{attributes: {when: 'always'}}]
}, {
code: '<App foo={bar/* comment */} {...baz/* comment */} />;',
options: [{attributes: {when: 'never'}}]
}, {
code: '<App foo={3} bar={ {a: 2} } />',
options: [{attributes: {when: 'never', spacing: {objectLiterals: 'always'}}}]
}, {
code: '<App>{bar/* comment */}</App>;',
options: [{children: {when: 'never'}}]
}, {
code: '<App>{bar} {baz}</App>;'
}, {
code: '<App>{bar} {baz}</App>;',
options: [{children: {when: 'never'}}]
}, {
code: '<App>{ bar } { baz }</App>;',
options: [{children: {when: 'always'}}]
}, {
code: '<App>{ bar } { baz }</App>;',
options: [{children: {when: 'always', allowMultiline: false}}]
}, {
code: '<App>{{ bar:baz }} {baz}</App>;',
options: [{children: {when: 'never'}}]
}, {
code: '<App>{ {bar:baz} } { baz }</App>;',
options: [{children: {when: 'always'}}]
}, {
code: [
'<App>{',
'bar',
'} {',
'bar',
'}</App>;'
].join('\n'),
options: [{children: {when: 'always'}}]
}, {
code: '<App>{bar/* comment */} {baz/* comment */}</App>;',
options: [{children: {when: 'never'}}]
}, {
code: '<App>{3} { {a: 2} }</App>',
options: [{children: {when: 'never', spacing: {objectLiterals: 'always'}}}]
}, {
code: '<App foo={ bar }>{bar}</App>',
options: [{attributes: {when: 'always'}}]
}, {
code: '<App foo={ bar }>{bar}</App>',
options: [{attributes: {when: 'always'}}]
}, {
code: [
'<App foo={ 42 } { ...bar } baz={{ 4: 2 }}>',
'{foo} {{ bar: baz }}',
'</App>'
].join('\n'),
options: [{
when: 'never',
attributes: {when: 'always', spacing: {objectLiterals: 'never'}},
children: true
}]
}, {
code: [
'<App foo={42} {...bar} baz={ { 4: 2 } }>',
'{foo} { { bar: baz } }',
'</App>'
].join('\n'),
options: [{
when: 'never',
spacing: {objectLiterals: 'always'},
attributes: true,
children: {when: 'never'}
}]
}, {
code: [
'<App foo={42} {...bar} baz={ { 4: 2 } }>',
'{foo} { { bar: baz } }',
'</App>'
].join('\n'),
options: [{
spacing: {objectLiterals: 'always'},
attributes: {when: 'never', spacing: {objectLiterals: 'always'}},
children: {when: 'never'}
}]
}, {
code: '<App foo={bar} />;',
options: ['never']
}, {
code: [
'<App foo={',
'{ bar: true, baz: true }',
'} />;'
].join('\n'),
options: ['never', {spacing: {objectLiterals: 'never'}}]
}, {
code: '<App foo={ bar } />;',
options: ['always']
}, {
code: '<App foo={ bar } />;',
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code: '<App foo={{ bar:baz }} />;',
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code: '<App foo={ {bar:baz} } />;',
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code: [
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code: [
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code: [
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code: '<App foo={bar/* comment */} />;',
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code: '<App foo={ bar } />;',
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code: [
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code: [
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options: ['always', {allowMultiline: true}]
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code: [
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code: '<App {...bar} />;',
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code: '<App { ...bar } />;',
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code: '<App { ...bar } />;',
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code: [
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code: [
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}, {
code: [
'<App {',
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}, {
code: '<App {...bar/* comment */} />;',
options: ['never']
}, {
code: '<App foo={bar} {...baz} />;',
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code: '<App foo={ bar } { ...baz } />;',
options: ['always']
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code: '<App foo={ bar } { ...baz } />;',
options: ['always', {allowMultiline: false}]
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code: '<App foo={{ bar:baz }} {...baz} />;',
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code: '<App foo={ {bar:baz} } { ...baz } />;',
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code: [
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code: '<App foo={3} bar={ {a: 2} } />',
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}, {
code: '<App foo={ bar }>{bar}</App>',
options: ['always']
}],
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code: '<App foo={ bar }>{bar}</App>;',
output: '<App foo={bar}>{bar}</App>;',
errors: [{
message: 'There should be no space after \'{\''
}, {
message: 'There should be no space before \'}\''
}]
}, {
code: '<App foo={ bar }>{ bar }</App>;',
output: '<App foo={bar}>{ bar }</App>;',
errors: [{
message: 'There should be no space after \'{\''
}, {
message: 'There should be no space before \'}\''
}]
}, {
code: '<App foo={ { bar: true, baz: true } }>{{ bar: true, baz: true }}</App>;',
output: '<App foo={{ bar: true, baz: true }}>{{ bar: true, baz: true }}</App>;',
errors: [{
message: 'There should be no space after \'{\''
}, {
message: 'There should be no space before \'}\''
}]
}, {
code: '<App foo={ { bar: true, baz: true } }>{ { bar: true, baz: true } }</App>;',
output: '<App foo={{ bar: true, baz: true }}>{ { bar: true, baz: true } }</App>;',
errors: [{
message: 'There should be no space after \'{\''
}, {
message: 'There should be no space before \'}\''
}]
}, {
code: '<App foo={ bar } />;',
output: '<App foo={bar} />;',
options: [{attributes: true}],
errors: [{
message: 'There should be no space after \'{\''
}, {
message: 'There should be no space before \'}\''
}]
}, {
code: '<App foo={ { bar: true, baz: true } } />;',
output: '<App foo={{ bar: true, baz: true }} />;',
options: [{attributes: true}],
errors: [{
message: 'There should be no space after \'{\''
}, {
message: 'There should be no space before \'}\''
}]
}, {
code: '<App>{ bar }</App>;',
output: '<App>{bar}</App>;',
options: [{children: true}],
errors: [{
message: 'There should be no space after \'{\''
}, {
message: 'There should be no space before \'}\''
}]
}, {
code: '<App>{ { bar: true, baz: true } }</App>;',
output: '<App>{{ bar: true, baz: true }}</App>;',
options: [{children: true}],
errors: [{
message: 'There should be no space after \'{\''
}, {
message: 'There should be no space before \'}\''
}]
}, {
code: '<App foo={ bar } />;',
output: '<App foo={bar} />;',
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errors: [{
message: 'There should be no space after \'{\''
}, {
message: 'There should be no space before \'}\''
}]
}, {
code: [
'<App foo={',
'bar',
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].join('\n'),
output: '<App foo={bar} />;',
options: [{when: 'never', allowMultiline: false}],
errors: [{
message: 'There should be no newline after \'{\''
}, {
message: 'There should be no newline before \'}\''
}]
}, {
code: '<App foo={ { bar: true, baz: true } } />;',
output: '<App foo={{ bar: true, baz: true }} />;',
options: [{when: 'never', spacing: {objectLiterals: 'never'}}],
errors: [{
message: 'There should be no space after \'{\''
}, {
message: 'There should be no space before \'}\''
}]
}, {
code: [
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output: '<App foo={{ bar: true, baz: true }} />;',
options: [{when: 'never', allowMultiline: false, spacing: {objectLiterals: 'never'}}],
errors: [{
message: 'There should be no newline after \'{\''
}, {
message: 'There should be no newline before \'}\''
}]
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code: '<App foo={{ bar: true, baz: true }} />;',
output: '<App foo={ { bar: true, baz: true } } />;',
options: [{when: 'never', spacing: {objectLiterals: 'always'}}],
errors: [{
message: 'A space is required after \'{\''
}, {
message: 'A space is required before \'}\''
}]
}, {
code: [
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output: '<App foo={ { bar: true, baz: true } } />;',
options: [{when: 'never', allowMultiline: false, spacing: {objectLiterals: 'always'}}],
errors: [{
message: 'There should be no newline after \'{\''
}, {
message: 'There should be no newline before \'}\''
}]
}, {
code: '<App foo={bar} />;',
output: '<App foo={ bar } />;',
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errors: [{
message: 'A space is required after \'{\''
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message: 'A space is required before \'}\''
}]
}, {
code: [
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message: 'There should be no newline after \'{\''
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message: 'There should be no newline before \'}\''
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code: '<App foo={ { bar: true, baz: true } } />;',
output: '<App foo={{ bar: true, baz: true }} />;',
options: [{when: 'always', spacing: {objectLiterals: 'never'}}],
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message: 'There should be no space after \'{\''
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message: 'There should be no space before \'}\''
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code: [
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errors: [{
message: 'There should be no newline after \'{\''
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message: 'There should be no newline before \'}\''
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code: '<App foo={{ bar: true, baz: true }} />;',
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options: [{when: 'always', spacing: {objectLiterals: 'always'}}],
errors: [{
message: 'A space is required after \'{\''
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message: 'A space is required before \'}\''
}]
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code: [
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options: [{when: 'always', allowMultiline: false, spacing: {objectLiterals: 'always'}}],
errors: [{
message: 'There should be no newline after \'{\''
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message: 'There should be no newline before \'}\''
}]
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code: '<App foo={ bar } />;',
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errors: [{
message: 'There should be no space after \'{\''
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message: 'There should be no space before \'}\''
}]
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code: [
'<App foo={',
'bar',
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errors: [{
message: 'There should be no newline after \'{\''
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message: 'There should be no newline before \'}\''
}]
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code: '<App foo={ { bar: true, baz: true } } />;',
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options: [{attributes: true, when: 'never', spacing: {objectLiterals: 'never'}}],
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message: 'There should be no space after \'{\''
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message: 'There should be no space before \'}\''
}]
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code: '<App foo={{ bar: true, baz: true }} />;',
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options: [{attributes: true, when: 'never', spacing: {objectLiterals: 'always'}}],
errors: [{
message: 'A space is required after \'{\''
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message: 'A space is required before \'}\''
}]
}, {
code: '<App foo={bar} />;',
output: '<App foo={ bar } />;',
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errors: [{
message: 'A space is required after \'{\''
}, {
message: 'A space is required before \'}\''
}]
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code: [
'<App foo={',
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output: '<App foo={ bar } />;',
options: [{attributes: true, when: 'always', allowMultiline: false}],
errors: [{
message: 'There should be no newline after \'{\''
}, {
message: 'There should be no newline before \'}\''
}]
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code: '<App foo={ { bar: true, baz: true } } />;',
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options: [{attributes: true, when: 'always', spacing: {objectLiterals: 'never'}}],
errors: [{
message: 'There should be no space after \'{\''
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message: 'There should be no space before \'}\''
}]
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code: '<App foo={{ bar: true, baz: true }} />;',
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options: [{attributes: true, when: 'always', spacing: {objectLiterals: 'always'}}],
errors: [{
message: 'A space is required after \'{\''
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message: 'A space is required before \'}\''
}]
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code: '<App foo={ bar } />;',
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message: 'There should be no space after \'{\''
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message: 'There should be no space before \'}\''
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code: '<App foo={ bar } />;',
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options: [{attributes: {when: 'never', allowMultiline: false}}],
errors: [{
message: 'There should be no space after \'{\''
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message: 'There should be no space before \'}\''
}]
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code: '<App foo={bar} />;',
output: '<App foo={ bar } />;',
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errors: [{
message: 'A space is required after \'{\''
}, {
message: 'A space is required before \'}\''
}]
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code: '<App foo={bar} />;',
output: '<App foo={ bar } />;',
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errors: [{
message: 'A space is required after \'{\''
}, {
message: 'A space is required before \'}\''
}]
}, {
code: '<App foo={ bar} />;',
output: '<App foo={ bar } />;',
options: [{attributes: {when: 'always'}}],
errors: [{
message: 'A space is required before \'}\''
}]
}, {
code: '<App foo={bar } />;',