/
id-match.js
869 lines (852 loc) · 25.9 KB
/
id-match.js
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/**
* @fileoverview Rule to flag non-matching identifiers
* @author Matthieu Larcher
*/
"use strict";
//------------------------------------------------------------------------------
// Requirements
//------------------------------------------------------------------------------
const rule = require("../../../lib/rules/id-match"),
{ RuleTester } = require("../../../lib/rule-tester");
//------------------------------------------------------------------------------
// Tests
//------------------------------------------------------------------------------
const ruleTester = new RuleTester();
const error = { messageId: "notMatch", type: "Identifier" };
ruleTester.run("id-match", rule, {
valid: [
{
code: "__foo = \"Matthieu\"",
options: [
"^[a-z]+$",
{
onlyDeclarations: true
}
]
},
{
code: "firstname = \"Matthieu\"",
options: ["^[a-z]+$"]
},
{
code: "first_name = \"Matthieu\"",
options: ["[a-z]+"]
},
{
code: "firstname = \"Matthieu\"",
options: ["^f"]
},
{
code: "last_Name = \"Larcher\"",
options: ["^[a-z]+(_[A-Z][a-z]+)*$"]
},
{
code: "param = \"none\"",
options: ["^[a-z]+(_[A-Z][a-z])*$"]
},
{
code: "function noUnder(){}",
options: ["^[^_]+$"]
},
{
code: "no_under()",
options: ["^[^_]+$"]
},
{
code: "foo.no_under2()",
options: ["^[^_]+$"]
},
{
code: "var foo = bar.no_under3;",
options: ["^[^_]+$"]
},
{
code: "var foo = bar.no_under4.something;",
options: ["^[^_]+$"]
},
{
code: "foo.no_under5.qux = bar.no_under6.something;",
options: ["^[^_]+$"]
},
{
code: "if (bar.no_under7) {}",
options: ["^[^_]+$"]
},
{
code: "var obj = { key: foo.no_under8 };",
options: ["^[^_]+$"]
},
{
code: "var arr = [foo.no_under9];",
options: ["^[^_]+$"]
},
{
code: "[foo.no_under10]",
options: ["^[^_]+$"]
},
{
code: "var arr = [foo.no_under11.qux];",
options: ["^[^_]+$"]
},
{
code: "[foo.no_under12.nesting]",
options: ["^[^_]+$"]
},
{
code: "if (foo.no_under13 === boom.no_under14) { [foo.no_under15] }",
options: ["^[^_]+$"]
},
{
code: "var myArray = new Array(); var myDate = new Date();",
options: ["^[a-z$]+([A-Z][a-z]+)*$"]
},
{
code: "var x = obj._foo;",
options: ["^[^_]+$"]
},
{
code: "var obj = {key: no_under}",
options: ["^[^_]+$", {
properties: true,
onlyDeclarations: true
}]
},
{
code: "var {key_no_under: key} = {}",
options: ["^[^_]+$", {
properties: true
}],
parserOptions: { ecmaVersion: 6 }
},
{
code: "var { category_id } = query;",
options: ["^[^_]+$", {
properties: true,
ignoreDestructuring: true
}],
parserOptions: { ecmaVersion: 6 }
},
{
code: "var { category_id: category_id } = query;",
options: ["^[^_]+$", {
properties: true,
ignoreDestructuring: true
}],
parserOptions: { ecmaVersion: 6 }
},
{
code: "var { category_id = 1 } = query;",
options: ["^[^_]+$", {
properties: true,
ignoreDestructuring: true
}],
parserOptions: { ecmaVersion: 6 }
},
{
code: "var o = {key: 1}",
options: ["^[^_]+$", {
properties: true
}]
},
{
code: "var o = {no_under16: 1}",
options: ["^[^_]+$", {
properties: false
}]
},
{
code: "obj.no_under17 = 2;",
options: ["^[^_]+$", {
properties: false
}]
},
{
code: "var obj = {\n no_under18: 1 \n};\n obj.no_under19 = 2;",
options: ["^[^_]+$", {
properties: false
}]
},
{
code: "obj.no_under20 = function(){};",
options: ["^[^_]+$", {
properties: false
}]
},
{
code: "var x = obj._foo2;",
options: ["^[^_]+$", {
properties: false
}]
},
// Should not report for global references - https://github.com/eslint/eslint/issues/15395
{
code: `
const foo = Object.keys(bar);
const a = Array.from(b);
const bar = () => Array;
`,
options: ["^\\$?[a-z]+([A-Z0-9][a-z0-9]+)*$", {
properties: true
}],
parserOptions: { ecmaVersion: 2022 }
},
{
code: `
const foo = {
foo_one: 1,
bar_one: 2,
fooBar: 3
};
`,
options: ["^[^_]+$", {
properties: false
}],
parserOptions: { ecmaVersion: 2022 }
},
{
code: `
const foo = {
foo_one: 1,
bar_one: 2,
fooBar: 3
};
`,
options: ["^[^_]+$", {
onlyDeclarations: true
}],
parserOptions: { ecmaVersion: 2022 }
},
{
code: `
const foo = {
foo_one: 1,
bar_one: 2,
fooBar: 3
};
`,
options: ["^[^_]+$", {
properties: false,
onlyDeclarations: false
}],
parserOptions: { ecmaVersion: 2022 }
},
// Class Methods
{
code: "class x { foo() {} }",
options: ["^[^_]+$"],
parserOptions: { ecmaVersion: 2022 }
},
{
code: "class x { #foo() {} }",
options: ["^[^_]+$"],
parserOptions: { ecmaVersion: 2022 }
},
// Class Fields
{
code: "class x { _foo = 1; }",
options: ["^[^_]+$", {
classFields: false
}],
parserOptions: { ecmaVersion: 2022 }
},
{
code: "class x { #_foo = 1; }",
options: ["^[^_]+$", {
classFields: false
}],
parserOptions: { ecmaVersion: 2022 }
}
],
invalid: [
{
code: "var __foo = \"Matthieu\"",
options: [
"^[a-z]+$",
{
onlyDeclarations: true
}
],
errors: [error]
},
{
code: "first_name = \"Matthieu\"",
options: ["^[a-z]+$"],
errors: [error]
},
{
code: "first_name = \"Matthieu\"",
options: ["^z"],
errors: [
error
]
},
{
code: "Last_Name = \"Larcher\"",
options: ["^[a-z]+(_[A-Z][a-z])*$"],
errors: [error
]
},
{
code: "var obj = {key: no_under}",
options: ["^[^_]+$", {
properties: true
}],
errors: [
{
message: "Identifier 'no_under' does not match the pattern '^[^_]+$'.",
type: "Identifier"
}
]
},
{
code: "function no_under21(){}",
options: ["^[^_]+$"],
errors: [error
]
},
{
code: "obj.no_under22 = function(){};",
options: ["^[^_]+$", {
properties: true
}],
errors: [error
]
},
{
code: "no_under23.foo = function(){};",
options: ["^[^_]+$", {
properties: true
}],
errors: [error
]
},
{
code: "[no_under24.baz]",
options: ["^[^_]+$", {
properties: true
}],
errors: [error
]
},
{
code: "if (foo.bar_baz === boom.bam_pow) { [no_under25.baz] }",
options: ["^[^_]+$", {
properties: true
}],
errors: [error
]
},
{
code: "foo.no_under26 = boom.bam_pow",
options: ["^[^_]+$", {
properties: true
}],
errors: [error
]
},
{
code: "var foo = { no_under27: boom.bam_pow }",
options: ["^[^_]+$", {
properties: true
}],
errors: [error
]
},
{
code: "foo.qux.no_under28 = { bar: boom.bam_pow }",
options: ["^[^_]+$", {
properties: true
}],
errors: [error
]
},
{
code: "var o = {no_under29: 1}",
options: ["^[^_]+$", {
properties: true
}],
errors: [error
]
},
{
code: "obj.no_under30 = 2;",
options: ["^[^_]+$", {
properties: true
}],
errors: [
{
messageId: "notMatch",
data: { name: "no_under30", pattern: "^[^_]+$" }
}
]
},
{
code: "var { category_id: category_alias } = query;",
options: ["^[^_]+$", {
properties: true
}],
parserOptions: { ecmaVersion: 6 },
errors: [
{
message: "Identifier 'category_alias' does not match the pattern '^[^_]+$'.",
type: "Identifier"
}
]
},
{
code: "var { category_id: category_alias } = query;",
options: ["^[^_]+$", {
properties: true,
ignoreDestructuring: true
}],
parserOptions: { ecmaVersion: 6 },
errors: [
{
message: "Identifier 'category_alias' does not match the pattern '^[^_]+$'.",
type: "Identifier"
}
]
},
{
code: "var { category_id: categoryId, ...other_props } = query;",
options: ["^[^_]+$", {
properties: true,
ignoreDestructuring: true
}],
parserOptions: { ecmaVersion: 2018 },
errors: [
{
message: "Identifier 'other_props' does not match the pattern '^[^_]+$'.",
type: "Identifier"
}
]
},
{
code: "var { category_id } = query;",
options: ["^[^_]+$", {
properties: true
}],
parserOptions: { ecmaVersion: 6 },
errors: [
{
message: "Identifier 'category_id' does not match the pattern '^[^_]+$'.",
type: "Identifier"
}
]
},
{
code: "var { category_id = 1 } = query;",
options: ["^[^_]+$", {
properties: true
}],
parserOptions: { ecmaVersion: 6 },
errors: [
{
message: "Identifier 'category_id' does not match the pattern '^[^_]+$'.",
type: "Identifier"
}
]
},
{
code: "import no_camelcased from \"external-module\";",
options: ["^[^_]+$", {
properties: true
}],
parserOptions: { ecmaVersion: 6, sourceType: "module" },
errors: [
{
message: "Identifier 'no_camelcased' does not match the pattern '^[^_]+$'.",
type: "Identifier"
}
]
},
{
code: "import * as no_camelcased from \"external-module\";",
options: ["^[^_]+$", {
properties: true
}],
parserOptions: { ecmaVersion: 6, sourceType: "module" },
errors: [
{
message: "Identifier 'no_camelcased' does not match the pattern '^[^_]+$'.",
type: "Identifier"
}
]
},
{
code: "export * as no_camelcased from \"external-module\";",
options: ["^[^_]+$"],
parserOptions: { ecmaVersion: 2020, sourceType: "module" },
errors: [
{
message: "Identifier 'no_camelcased' does not match the pattern '^[^_]+$'.",
type: "Identifier"
}
]
},
{
code: "import { no_camelcased } from \"external-module\";",
options: ["^[^_]+$", {
properties: true
}],
parserOptions: { ecmaVersion: 6, sourceType: "module" },
errors: [
{
message: "Identifier 'no_camelcased' does not match the pattern '^[^_]+$'.",
type: "Identifier"
}
]
},
{
code: "import { no_camelcased as no_camel_cased } from \"external module\";",
options: ["^[^_]+$", {
properties: true
}],
parserOptions: { ecmaVersion: 6, sourceType: "module" },
errors: [
{
message: "Identifier 'no_camel_cased' does not match the pattern '^[^_]+$'.",
type: "Identifier"
}
]
},
{
code: "import { camelCased as no_camel_cased } from \"external module\";",
options: ["^[^_]+$", {
properties: true
}],
parserOptions: { ecmaVersion: 6, sourceType: "module" },
errors: [
{
message: "Identifier 'no_camel_cased' does not match the pattern '^[^_]+$'.",
type: "Identifier"
}
]
},
{
code: "import { camelCased, no_camelcased } from \"external-module\";",
options: ["^[^_]+$", {
properties: true
}],
parserOptions: { ecmaVersion: 6, sourceType: "module" },
errors: [
{
message: "Identifier 'no_camelcased' does not match the pattern '^[^_]+$'.",
type: "Identifier"
}
]
},
{
code: "import { no_camelcased as camelCased, another_no_camelcased } from \"external-module\";",
options: ["^[^_]+$", {
properties: true
}],
parserOptions: { ecmaVersion: 6, sourceType: "module" },
errors: [
{
message: "Identifier 'another_no_camelcased' does not match the pattern '^[^_]+$'.",
type: "Identifier"
}
]
},
{
code: "import camelCased, { no_camelcased } from \"external-module\";",
options: ["^[^_]+$", {
properties: true
}],
parserOptions: { ecmaVersion: 6, sourceType: "module" },
errors: [
{
message: "Identifier 'no_camelcased' does not match the pattern '^[^_]+$'.",
type: "Identifier"
}
]
},
{
code: "import no_camelcased, { another_no_camelcased as camelCased } from \"external-module\";",
options: ["^[^_]+$", {
properties: true
}],
parserOptions: { ecmaVersion: 6, sourceType: "module" },
errors: [
{
message: "Identifier 'no_camelcased' does not match the pattern '^[^_]+$'.",
type: "Identifier"
}
]
},
{
code: "function foo({ no_camelcased }) {};",
options: ["^[^_]+$", {
properties: true
}],
parserOptions: { ecmaVersion: 6 },
errors: [
{
message: "Identifier 'no_camelcased' does not match the pattern '^[^_]+$'.",
type: "Identifier"
}
]
},
{
code: "function foo({ no_camelcased = 'default value' }) {};",
options: ["^[^_]+$", {
properties: true
}],
parserOptions: { ecmaVersion: 6 },
errors: [
{
message: "Identifier 'no_camelcased' does not match the pattern '^[^_]+$'.",
type: "Identifier"
}
]
},
{
code: "const no_camelcased = 0; function foo({ camelcased_value = no_camelcased }) {}",
options: ["^[^_]+$", {
properties: true
}],
parserOptions: { ecmaVersion: 6 },
errors: [
{
message: "Identifier 'no_camelcased' does not match the pattern '^[^_]+$'.",
type: "Identifier"
},
{
message: "Identifier 'camelcased_value' does not match the pattern '^[^_]+$'.",
type: "Identifier"
}
]
},
{
code: "const { bar: no_camelcased } = foo;",
options: ["^[^_]+$", {
properties: true
}],
parserOptions: { ecmaVersion: 6 },
errors: [
{
message: "Identifier 'no_camelcased' does not match the pattern '^[^_]+$'.",
type: "Identifier"
}
]
},
{
code: "function foo({ value_1: my_default }) {}",
options: ["^[^_]+$", {
properties: true
}],
parserOptions: { ecmaVersion: 6 },
errors: [
{
message: "Identifier 'my_default' does not match the pattern '^[^_]+$'.",
type: "Identifier"
}
]
},
{
code: "function foo({ isCamelcased: no_camelcased }) {};",
options: ["^[^_]+$", {
properties: true
}],
parserOptions: { ecmaVersion: 6 },
errors: [
{
message: "Identifier 'no_camelcased' does not match the pattern '^[^_]+$'.",
type: "Identifier"
}
]
},
{
code: "var { foo: bar_baz = 1 } = quz;",
options: ["^[^_]+$", {
properties: true
}],
parserOptions: { ecmaVersion: 6 },
errors: [
{
message: "Identifier 'bar_baz' does not match the pattern '^[^_]+$'.",
type: "Identifier"
}
]
},
{
code: "const { no_camelcased = false } = bar;",
options: ["^[^_]+$", {
properties: true
}],
parserOptions: { ecmaVersion: 6 },
errors: [
{
message: "Identifier 'no_camelcased' does not match the pattern '^[^_]+$'.",
type: "Identifier"
}
]
},
// https://github.com/eslint/eslint/issues/15395
{
code: `
const foo_variable = 1;
class MyClass {
}
let a = new MyClass();
let b = {id: 1};
let c = Object.keys(b);
let d = Array.from(b);
let e = (Object) => Object.keys(obj, prop); // not global Object
let f = (Array) => Array.from(obj, prop); // not global Array
foo.Array = 5; // not global Array
`,
options: ["^\\$?[a-z]+([A-Z0-9][a-z0-9]+)*$", {
properties: true
}],
parserOptions: { ecmaVersion: 6 },
errors: [
{
message: "Identifier 'foo_variable' does not match the pattern '^\\$?[a-z]+([A-Z0-9][a-z0-9]+)*$'.",
type: "Identifier",
line: 2,
column: 19
},
{
message: "Identifier 'MyClass' does not match the pattern '^\\$?[a-z]+([A-Z0-9][a-z0-9]+)*$'.",
type: "Identifier",
line: 3,
column: 19
},
// let e = (Object) => Object.keys(obj, prop)
{
message: "Identifier 'Object' does not match the pattern '^\\$?[a-z]+([A-Z0-9][a-z0-9]+)*$'.",
type: "Identifier",
line: 9,
column: 22
},
{
message: "Identifier 'Object' does not match the pattern '^\\$?[a-z]+([A-Z0-9][a-z0-9]+)*$'.",
type: "Identifier",
line: 9,
column: 33
},
// let f =(Array) => Array.from(obj, prop);
{
message: "Identifier 'Array' does not match the pattern '^\\$?[a-z]+([A-Z0-9][a-z0-9]+)*$'.",
type: "Identifier",
line: 10,
column: 22
},
{
message: "Identifier 'Array' does not match the pattern '^\\$?[a-z]+([A-Z0-9][a-z0-9]+)*$'.",
type: "Identifier",
line: 10,
column: 32
},
// foo.Array = 5;
{
message: "Identifier 'Array' does not match the pattern '^\\$?[a-z]+([A-Z0-9][a-z0-9]+)*$'.",
type: "Identifier",
line: 11,
column: 17
}
]
},
// Class Methods
{
code: "class x { _foo() {} }",
options: ["^[^_]+$"],
parserOptions: { ecmaVersion: 2022 },
errors: [
{
message: "Identifier '_foo' does not match the pattern '^[^_]+$'.",
type: "Identifier"
}
]
},
{
code: "class x { #_foo() {} }",
options: ["^[^_]+$"],
parserOptions: { ecmaVersion: 2022 },
errors: [
{
message: "Identifier '#_foo' does not match the pattern '^[^_]+$'.",
type: "PrivateIdentifier"
}
]
},
// Class Fields
{
code: "class x { _foo = 1; }",
options: ["^[^_]+$", {
classFields: true
}],
parserOptions: { ecmaVersion: 2022 },
errors: [
{
message: "Identifier '_foo' does not match the pattern '^[^_]+$'.",
type: "Identifier"
}
]
},
{
code: "class x { #_foo = 1; }",
options: ["^[^_]+$", {
classFields: true
}],
parserOptions: { ecmaVersion: 2022 },
errors: [
{
message: "Identifier '#_foo' does not match the pattern '^[^_]+$'.",
type: "PrivateIdentifier"
}
]
},
// https://github.com/eslint/eslint/issues/15123
{
code: `
const foo = {
foo_one: 1,
bar_one: 2,
fooBar: 3
};
`,
options: ["^[^_]+$", {
properties: true,
onlyDeclarations: true
}],
parserOptions: { ecmaVersion: 2022 },
errors: [
{
message: "Identifier 'foo_one' does not match the pattern '^[^_]+$'.",
type: "Identifier"
},
{
message: "Identifier 'bar_one' does not match the pattern '^[^_]+$'.",
type: "Identifier"
}
]
},
{
code: `
const foo = {
foo_one: 1,
bar_one: 2,
fooBar: 3
};
`,
options: ["^[^_]+$", {
properties: true,
onlyDeclarations: false
}],
parserOptions: { ecmaVersion: 2022 },
errors: [
{
message: "Identifier 'foo_one' does not match the pattern '^[^_]+$'.",
type: "Identifier"
},
{
message: "Identifier 'bar_one' does not match the pattern '^[^_]+$'.",
type: "Identifier"
}
]
}
]
});