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{ | ||
"extends": ["airbnb", "plugin:prettier/recommended"], | ||
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"extends": ["prettier"], | ||
"env": { | ||
"jest": true | ||
}, | ||
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"rules": { | ||
"global-require": "off", | ||
"no-cond-assign": ["error", "except-parens"], | ||
"no-param-reassign": "off", | ||
"no-plusplus": "off", | ||
"no-underscore-dangle": ["error", { | ||
"allow": ["__DO_NOT_USE_OR_YOU_WILL_BE_HAUNTED_BY_SPOOKY_GHOSTS"] | ||
}], | ||
"prettier/prettier": ["error", { | ||
"semi": false, | ||
"singleQuote": true, | ||
"trailingComma": "es5" | ||
}], | ||
"react/jsx-filename-extension": ["error", { "extensions": [".js"] }], | ||
"react/prop-types": ["error", { "skipUndeclared": true }], | ||
} | ||
"parser": "babel-eslint" | ||
} |
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{ | ||
"preset": "react-native", | ||
"testRegex": "test/native/.*\\.spec\\.js$" | ||
"testRegex": "test/native/.*\\.spec\\.js$", | ||
"transform": { | ||
"^.+\\.js$": "<rootDir>/node_modules/react-native/jest/preprocessor.js" | ||
} | ||
} |
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const { getCSS, matcherTest, buildReturnMessage } = require('./utils') | ||
const { getCSS, matcherTest, buildReturnMessage } = require('./utils'); | ||
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const shouldDive = node => | ||
typeof node.dive === 'function' && typeof node.type() !== 'string' | ||
const shouldDive = node => typeof node.dive === 'function' && typeof node.type() !== 'string'; | ||
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const isTagWithClassName = node => | ||
node.exists() && node.prop('className') && typeof node.type() === 'string' | ||
const isTagWithClassName = node => node.exists() && node.prop('className') && typeof node.type() === 'string'; | ||
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const getClassNames = received => { | ||
let className | ||
let className; | ||
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if (received) { | ||
if (received.$$typeof === Symbol.for('react.test.json')) { | ||
className = received.props.className || received.props.class | ||
className = received.props.className || received.props.class; | ||
} else if (typeof received.exists === 'function' && received.exists()) { | ||
const tree = shouldDive(received) ? received.dive() : received | ||
const components = tree.findWhere(isTagWithClassName) | ||
const tree = shouldDive(received) ? received.dive() : received; | ||
const components = tree.findWhere(isTagWithClassName); | ||
if (components.length) { | ||
className = components.first().prop('className') | ||
className = components.first().prop('className'); | ||
} | ||
} else if (global.Element && received instanceof global.Element) { | ||
className = Array.from(received.classList).join(' ') | ||
className = Array.from(received.classList).join(' '); | ||
} | ||
} | ||
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return className ? className.split(/\s/) : [] | ||
} | ||
return className ? className.split(/\s/) : []; | ||
}; | ||
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const hasAtRule = options => | ||
Object.keys(options).some(option => ['media', 'supports'].includes(option)) | ||
const hasAtRule = options => Object.keys(options).some(option => ['media', 'supports'].includes(option)); | ||
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const getAtRules = (ast, options) => { | ||
const mediaRegex = /(\([a-z-]+:)\s?([a-z0-9.]+\))/g | ||
const mediaRegex = /(\([a-z-]+:)\s?([a-z0-9.]+\))/g; | ||
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return Object.keys(options) | ||
.map(option => | ||
ast.stylesheet.rules | ||
.filter( | ||
rule => | ||
rule.type === option && | ||
rule[option] === options[option].replace(mediaRegex, '$1$2') | ||
) | ||
.filter(rule => rule.type === option && rule[option] === options[option].replace(mediaRegex, '$1$2')) | ||
.map(rule => rule.rules) | ||
.reduce((acc, rules) => acc.concat(rules), []) | ||
) | ||
.reduce((acc, rules) => acc.concat(rules), []) | ||
} | ||
.reduce((acc, rules) => acc.concat(rules), []); | ||
}; | ||
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const getModifiedClassName = (className, modifier = '') => { | ||
const classNameSelector = `.${className}` | ||
let prefix = '' | ||
const classNameSelector = `.${className}`; | ||
let prefix = ''; | ||
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modifier = modifier.trim() | ||
modifier = modifier.trim(); | ||
if (modifier.includes('&')) { | ||
modifier = modifier.replace(/&/g, classNameSelector) | ||
modifier = modifier.replace(/&/g, classNameSelector); | ||
} else { | ||
prefix += classNameSelector | ||
prefix += classNameSelector; | ||
} | ||
const first = modifier[0] | ||
const first = modifier[0]; | ||
if (first !== ':' && first !== '[') { | ||
prefix += ' ' | ||
prefix += ' '; | ||
} | ||
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return `${prefix}${modifier}`.trim() | ||
} | ||
return `${prefix}${modifier}`.trim(); | ||
}; | ||
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const hasClassNames = (classNames, selectors, options) => | ||
classNames.some(className => | ||
selectors.includes(getModifiedClassName(className, options.modifier)) | ||
) | ||
classNames.some(className => selectors.includes(getModifiedClassName(className, options.modifier))); | ||
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const getRules = (ast, classNames, options) => { | ||
const rules = hasAtRule(options) | ||
? getAtRules(ast, options) | ||
: ast.stylesheet.rules | ||
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return rules.filter( | ||
rule => | ||
rule.type === 'rule' && hasClassNames(classNames, rule.selectors, options) | ||
) | ||
} | ||
const rules = hasAtRule(options) ? getAtRules(ast, options) : ast.stylesheet.rules; | ||
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return rules.filter(rule => rule.type === 'rule' && hasClassNames(classNames, rule.selectors, options)); | ||
}; | ||
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const handleMissingRules = options => ({ | ||
pass: false, | ||
message: () => | ||
`No style rules found on passed Component${ | ||
Object.keys(options).length | ||
? ` using options:\n${JSON.stringify(options)}` | ||
: '' | ||
Object.keys(options).length ? ` using options:\n${JSON.stringify(options)}` : '' | ||
}`, | ||
}) | ||
}); | ||
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const getDeclaration = (rule, property) => | ||
rule.declarations | ||
.filter( | ||
declaration => | ||
declaration.type === 'declaration' && declaration.property === property | ||
) | ||
.pop() | ||
.filter(declaration => declaration.type === 'declaration' && declaration.property === property) | ||
.pop(); | ||
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const getDeclarations = (rules, property) => | ||
rules.map(rule => getDeclaration(rule, property)).filter(Boolean) | ||
const getDeclarations = (rules, property) => rules.map(rule => getDeclaration(rule, property)).filter(Boolean); | ||
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const normalizeOptions = options => | ||
options.modifier | ||
? Object.assign({}, options, { | ||
modifier: Array.isArray(options.modifier) | ||
? options.modifier.join('') | ||
: options.modifier, | ||
modifier: Array.isArray(options.modifier) ? options.modifier.join('') : options.modifier, | ||
}) | ||
: options | ||
: options; | ||
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function toHaveStyleRule(component, property, expected, options = {}) { | ||
const classNames = getClassNames(component) | ||
const ast = getCSS() | ||
const normalizedOptions = normalizeOptions(options) | ||
const rules = getRules(ast, classNames, normalizedOptions) | ||
const classNames = getClassNames(component); | ||
const ast = getCSS(); | ||
const normalizedOptions = normalizeOptions(options); | ||
const rules = getRules(ast, classNames, normalizedOptions); | ||
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if (!rules.length) { | ||
return handleMissingRules(normalizedOptions) | ||
return handleMissingRules(normalizedOptions); | ||
} | ||
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const declarations = getDeclarations(rules, property) | ||
const declaration = declarations.pop() || {} | ||
const received = declaration.value | ||
const pass = | ||
!received && !expected && this.isNot | ||
? false | ||
: matcherTest(received, expected) | ||
const declarations = getDeclarations(rules, property); | ||
const declaration = declarations.pop() || {}; | ||
const received = declaration.value; | ||
const pass = !received && !expected && this.isNot ? false : matcherTest(received, expected); | ||
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return { | ||
pass, | ||
message: buildReturnMessage(this.utils, pass, property, received, expected), | ||
} | ||
}; | ||
} | ||
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module.exports = toHaveStyleRule | ||
module.exports = toHaveStyleRule; |
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