/
no-unsafe-negation.js
108 lines (102 loc) · 3.05 KB
/
no-unsafe-negation.js
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/**
* @fileoverview Tests for no-unsafe-negation rule.
* @author Toru Nagashima
*/
"use strict";
//------------------------------------------------------------------------------
// Requirements
//------------------------------------------------------------------------------
const rule = require("../../../lib/rules/no-unsafe-negation"),
{ RuleTester } = require("../../../lib/rule-tester");
//------------------------------------------------------------------------------
// Tests
//------------------------------------------------------------------------------
const ruleTester = new RuleTester();
const unexpectedInError = { messageId: "unexpected", data: { operator: "in" } };
const unexpectedInstanceofError = {
messageId: "unexpected",
data: { operator: "instanceof" }
};
const unexpectedLessThanOperatorError = {
messageId: "unexpected",
data: { operator: "<" }
};
const unexpectedMoreThanOperatorError = {
messageId: "unexpected",
data: { operator: ">" }
};
const unexpectedMoreThanOrEqualOperatorError = {
messageId: "unexpected",
data: { operator: ">=" }
};
const unexpectedLessThanOrEqualOperatorError = {
messageId: "unexpected",
data: { operator: "<=" }
};
ruleTester.run("no-unsafe-negation", rule, {
valid: [
"a in b",
"a in b === false",
"!(a in b)",
"(!a) in b",
"a instanceof b",
"a instanceof b === false",
"!(a instanceof b)",
"(!a) instanceof b",
"if (! a < b) {}",
"while (! a > b) {}",
"foo = ! a <= b;",
"foo = ! a >= b;",
{
code: "foo = (!a) >= b;",
options: [{ enforceForOrderingRelations: true }],
errors: [unexpectedMoreThanOrEqualOperatorError]
}
],
invalid: [
{
code: "!a in b",
errors: [unexpectedInError]
},
{
code: "(!a in b)",
errors: [unexpectedInError]
},
{
code: "!(a) in b",
errors: [unexpectedInError]
},
{
code: "!a instanceof b",
errors: [unexpectedInstanceofError]
},
{
code: "(!a instanceof b)",
errors: [unexpectedInstanceofError]
},
{
code: "!(a) instanceof b",
errors: [unexpectedInstanceofError]
},
{
code: "if (! a < b) {}",
options: [{ enforceForOrderingRelations: true }],
errors: [unexpectedLessThanOperatorError]
},
{
code: "while (! a > b) {}",
options: [{ enforceForOrderingRelations: true }],
errors: [unexpectedMoreThanOperatorError]
},
{
code: "foo = ! a <= b;",
options: [{ enforceForOrderingRelations: true }],
errors: [unexpectedLessThanOrEqualOperatorError]
},
{
code: "foo = ! a >= b;",
options: [{ enforceForOrderingRelations: true }],
errors: [unexpectedMoreThanOrEqualOperatorError]
}
]
});