/
no-string-prototype-substr.js
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/
no-string-prototype-substr.js
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"use strict"
const path = require("path")
const RuleTester = require("../../tester")
const rule = require("../../../lib/rules/no-string-prototype-substr.js")
const ruleId = "no-string-prototype-substr"
new RuleTester().run(ruleId, rule, {
valid: [
"substr()",
"foo.charAt(0)",
"foo.substr()",
{ code: "substr()", settings: { "es-x": { aggressive: true } } },
{ code: "foo.charAt(0)", settings: { "es-x": { aggressive: true } } },
{
code: "foo.substr()",
options: [{ aggressive: false }],
settings: { "es-x": { aggressive: true } },
},
],
invalid: [
{
code: "'foo'.substr()",
errors: [
"Annex B feature 'String.prototype.substr' method is forbidden.",
],
},
{
code: "foo.substr()",
errors: [
"Annex B feature 'String.prototype.substr' method is forbidden.",
],
settings: { "es-x": { aggressive: true } },
},
{
code: "foo.substr()",
options: [{ aggressive: true }],
errors: [
"Annex B feature 'String.prototype.substr' method is forbidden.",
],
settings: { "es-x": { aggressive: false } },
},
],
})
// -----------------------------------------------------------------------------
// TypeScript
// -----------------------------------------------------------------------------
const parser = require("@typescript-eslint/parser")
const tsconfigRootDir = path.resolve(__dirname, "../../fixtures")
const project = "tsconfig.json"
const filename = path.join(tsconfigRootDir, "test.ts")
new RuleTester({
languageOptions: { parser, parserOptions: { tsconfigRootDir, project } },
}).run(`${ruleId} TS Full Type Information`, rule, {
valid: [
{ filename, code: "substr()" },
{ filename, code: "foo.charAt(0)" },
{ filename, code: "foo.substr()" },
{ filename, code: "let foo = {}; foo.substr()" },
{
filename,
code: "substr()",
settings: { "es-x": { aggressive: true } },
},
{
filename,
code: "foo.charAt(0)",
settings: { "es-x": { aggressive: true } },
},
],
invalid: [
{
filename,
code: "'foo'.substr()",
errors: [
"Annex B feature 'String.prototype.substr' method is forbidden.",
],
},
{
filename,
code: "let foo = 'foo'; foo.substr()",
errors: [
"Annex B feature 'String.prototype.substr' method is forbidden.",
],
},
{
filename,
code: "let foo = String(); foo.substr()",
errors: [
"Annex B feature 'String.prototype.substr' method is forbidden.",
],
},
{
filename,
code: "function f<T extends string>(a: T) { a.substr() }",
errors: [
"Annex B feature 'String.prototype.substr' method is forbidden.",
],
},
{
filename,
code: "function f<T extends 'a' | 'b'>(a: T) { a.substr() }",
errors: [
"Annex B feature 'String.prototype.substr' method is forbidden.",
],
},
{
filename,
code: "foo.substr()",
errors: [
"Annex B feature 'String.prototype.substr' method is forbidden.",
],
settings: { "es-x": { aggressive: true } },
},
],
})