98 lines
3.3 KiB
JavaScript
98 lines
3.3 KiB
JavaScript
|
"use strict";
|
||
|
|
|
||
|
|
Object.defineProperty(exports, "__esModule", {
|
||
|
|
value: true
|
||
|
|
});
|
||
|
|
exports.default = void 0;
|
||
|
|
|
||
|
|
var _experimentalUtils = require("@typescript-eslint/experimental-utils");
|
||
|
|
|
||
|
|
var _utils = require("./utils");
|
||
|
|
|
||
|
|
const isBooleanLiteral = node => node.type === _experimentalUtils.AST_NODE_TYPES.Literal && typeof node.value === 'boolean';
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Checks if the given `ParsedExpectMatcher` is a call to one of the equality matchers,
|
||
|
|
* with a boolean literal as the sole argument.
|
||
|
|
*
|
||
|
|
* @example javascript
|
||
|
|
* toBe(true);
|
||
|
|
* toEqual(false);
|
||
|
|
*
|
||
|
|
* @param {ParsedExpectMatcher} matcher
|
||
|
|
*
|
||
|
|
* @return {matcher is ParsedBooleanEqualityMatcher}
|
||
|
|
*/
|
||
|
|
const isBooleanEqualityMatcher = matcher => (0, _utils.isParsedEqualityMatcherCall)(matcher) && isBooleanLiteral((0, _utils.followTypeAssertionChain)(matcher.arguments[0]));
|
||
|
|
|
||
|
|
var _default = (0, _utils.createRule)({
|
||
|
|
name: __filename,
|
||
|
|
meta: {
|
||
|
|
docs: {
|
||
|
|
category: 'Best Practices',
|
||
|
|
description: 'Suggest using the built-in equality matchers',
|
||
|
|
recommended: false,
|
||
|
|
suggestion: true
|
||
|
|
},
|
||
|
|
messages: {
|
||
|
|
useEqualityMatcher: 'Prefer using one of the equality matchers instead',
|
||
|
|
suggestEqualityMatcher: 'Use `{{ equalityMatcher }}`'
|
||
|
|
},
|
||
|
|
hasSuggestions: true,
|
||
|
|
type: 'suggestion',
|
||
|
|
schema: []
|
||
|
|
},
|
||
|
|
defaultOptions: [],
|
||
|
|
|
||
|
|
create(context) {
|
||
|
|
return {
|
||
|
|
CallExpression(node) {
|
||
|
|
if (!(0, _utils.isExpectCall)(node)) {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
const {
|
||
|
|
expect: {
|
||
|
|
arguments: [comparison],
|
||
|
|
range: [, expectCallEnd]
|
||
|
|
},
|
||
|
|
matcher,
|
||
|
|
modifier
|
||
|
|
} = (0, _utils.parseExpectCall)(node);
|
||
|
|
|
||
|
|
if (!matcher || (comparison === null || comparison === void 0 ? void 0 : comparison.type) !== _experimentalUtils.AST_NODE_TYPES.BinaryExpression || comparison.operator !== '===' && comparison.operator !== '!==' || !isBooleanEqualityMatcher(matcher)) {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
const matcherValue = (0, _utils.followTypeAssertionChain)(matcher.arguments[0]).value; // we need to negate the expectation if the current expected
|
||
|
|
// value is itself negated by the "not" modifier
|
||
|
|
|
||
|
|
const addNotModifier = (comparison.operator === '!==' ? !matcherValue : matcherValue) === !!modifier;
|
||
|
|
|
||
|
|
const buildFixer = equalityMatcher => fixer => {
|
||
|
|
const sourceCode = context.getSourceCode();
|
||
|
|
return [// replace the comparison argument with the left-hand side of the comparison
|
||
|
|
fixer.replaceText(comparison, sourceCode.getText(comparison.left)), // replace the current matcher & modifier with the preferred matcher
|
||
|
|
fixer.replaceTextRange([expectCallEnd, matcher.node.range[1]], addNotModifier ? `.${_utils.ModifierName.not}.${equalityMatcher}` : `.${equalityMatcher}`), // replace the matcher argument with the right-hand side of the comparison
|
||
|
|
fixer.replaceText(matcher.arguments[0], sourceCode.getText(comparison.right))];
|
||
|
|
};
|
||
|
|
|
||
|
|
context.report({
|
||
|
|
messageId: 'useEqualityMatcher',
|
||
|
|
suggest: ['toBe', 'toEqual', 'toStrictEqual'].map(equalityMatcher => ({
|
||
|
|
messageId: 'suggestEqualityMatcher',
|
||
|
|
data: {
|
||
|
|
equalityMatcher
|
||
|
|
},
|
||
|
|
fix: buildFixer(equalityMatcher)
|
||
|
|
})),
|
||
|
|
node: (modifier || matcher).node.property
|
||
|
|
});
|
||
|
|
}
|
||
|
|
|
||
|
|
};
|
||
|
|
}
|
||
|
|
|
||
|
|
});
|
||
|
|
|
||
|
|
exports.default = _default;
|