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Check node argument is defined before use #285

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merged 4 commits into from Jun 22, 2019
Merged

Check node argument is defined before use #285

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ddbd829
Merge pull request #1 from jest-community/master
G-Rath Jun 22, 2019
87eda1e
fix: add defined guards to util functions
G-Rath Jun 22, 2019
bc2a122
chore: optimise conditionals
G-Rath Jun 22, 2019
8e60dac
chore: add test to `no-empty-title`
G-Rath Jun 22, 2019
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14 changes: 9 additions & 5 deletions src/rules/util.js
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Expand Up @@ -125,18 +125,22 @@ const isTestCase = node =>
testCaseNames[getNodeName(node.callee)];

const isDescribe = node =>
node.type === 'CallExpression' && describeAliases[getNodeName(node.callee)];
node &&
node.type === 'CallExpression' &&
describeAliases[getNodeName(node.callee)];

const isFunction = node =>
node.type === 'FunctionExpression' || node.type === 'ArrowFunctionExpression';
(node && node.type === 'FunctionExpression') ||
node.type === 'ArrowFunctionExpression';

const isString = node =>
(node.type === 'Literal' && typeof node.value === 'string') ||
(node && (node.type === 'Literal' && typeof node.value === 'string')) ||
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isTemplateLiteral(node);

const isTemplateLiteral = node => node.type === 'TemplateLiteral';
const isTemplateLiteral = node => node && node.type === 'TemplateLiteral';

const hasExpressions = node => node.expressions && node.expressions.length > 0;
const hasExpressions = node =>
node && node.expressions && node.expressions.length > 0;

const getStringValue = arg =>
isTemplateLiteral(arg) ? arg.quasis[0].value.raw : arg.value;
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