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array-bracket-newline.js
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array-bracket-newline.js
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/**
* @fileoverview Tests for array-bracket-newline rule.
* @author Jan Peer Stöcklmair <https://github.com/JPeer264>
*/
"use strict";
//------------------------------------------------------------------------------
// Requirements
//------------------------------------------------------------------------------
const rule = require("../../../lib/rules/array-bracket-newline");
const RuleTester = require("../../../lib/rule-tester/rule-tester");
//------------------------------------------------------------------------------
// Tests
//------------------------------------------------------------------------------
const ruleTester = new RuleTester();
ruleTester.run("array-bracket-newline", rule, {
valid: [
/*
* ArrayExpression
* "default" { multiline: true }
*/
"var foo = [];",
"var foo = [1];",
"var foo = /* any comment */[1];",
"var foo = /* any comment */\n[1];",
"var foo = [1, 2];",
"var foo = [ // any comment\n1, 2\n];",
"var foo = [\n// any comment\n1, 2\n];",
"var foo = [\n1, 2\n// any comment\n];",
"var foo = [\n1,\n2\n];",
"var foo = [\nfunction foo() {\nreturn dosomething();\n}\n];",
"var foo = [/* \nany comment\n */];",
"var foo = [/* single line multiline comment for no real reason */];",
"var foo = [[1,2]]",
// "always"
{ code: "var foo = [\n];", options: ["always"] },
{ code: "var foo = [\n1\n];", options: ["always"] },
{ code: "var foo = [\n// any\n1\n];", options: ["always"] },
{ code: "var foo = [\n/* any */\n1\n];", options: ["always"] },
{ code: "var foo = [\n1, 2\n];", options: ["always"] },
{ code: "var foo = [\n1, 2 // any comment\n];", options: ["always"] },
{
code: "var foo = [\n1, 2 /* any comment */\n];",
options: ["always"]
},
{ code: "var foo = [\n1,\n2\n];", options: ["always"] },
{
code: "var foo = [\nfunction foo() {\ndosomething();\n}\n];",
options: ["always"]
},
{
code: `
var foo = [
[
1,2
]
]
`,
options: ["always"]
},
{
code: `
var foo = [
0,
[
1,2
],
3
]
`,
options: ["always"]
},
// "never"
{ code: "var foo = [];", options: ["never"] },
{ code: "var foo = [1];", options: ["never"] },
{ code: "var foo = [/* any comment */1];", options: ["never"] },
{ code: "var foo = [1, 2];", options: ["never"] },
{ code: "var foo = [1,\n2];", options: ["never"] },
{ code: "var foo = [1,\n/* any comment */\n2];", options: ["never"] },
{
code: "var foo = [function foo() {\ndosomething();\n}];",
options: ["never"]
},
{
code: "var foo = [[1,2],3];",
options: ["never"]
},
// "consistent"
{ code: "var a = []", options: ["consistent"] },
{ code: "var a = [\n]", options: ["consistent"] },
{ code: "var a = [1]", options: ["consistent"] },
{ code: "var a = [\n1\n]", options: ["consistent"] },
{ code: "var a = [//\n1\n]", options: ["consistent"] },
{ code: "var a = [/**/\n1\n]", options: ["consistent"] },
{ code: "var a = [/*\n*/1\n]", options: ["consistent"] },
{ code: "var a = [//\n]", options: ["consistent"] },
{
code: `var a = [
[1,2]
]`,
options: ["consistent"]
},
{
code: `var a = [
[[1,2]]
]`,
options: ["consistent"]
},
// { multiline: true }
{ code: "var foo = [];", options: [{ multiline: true }] },
{ code: "var foo = [1];", options: [{ multiline: true }] },
{
code: "var foo = /* any comment */[1];",
options: [{ multiline: true }]
},
{
code: "var foo = /* any comment */\n[1];",
options: [{ multiline: true }]
},
{ code: "var foo = [1, 2];", options: [{ multiline: true }] },
{
code: "var foo = [ // any comment\n1, 2\n];",
options: [{ multiline: true }]
},
{
code: "var foo = [\n// any comment\n1, 2\n];",
options: [{ multiline: true }]
},
{
code: "var foo = [\n1, 2\n// any comment\n];",
options: [{ multiline: true }]
},
{ code: "var foo = [\n1,\n2\n];", options: [{ multiline: true }] },
{
code: "var foo = [\nfunction foo() {\nreturn dosomething();\n}\n];",
options: [{ multiline: true }]
},
{
code: "var foo = [/* \nany comment\n */];",
options: [{ multiline: true }]
},
{
code: "var foo = [\n1,\n2,\n[3,4],\n];",
options: [{ multiline: true }]
},
{
code: "var foo = [\n1,\n2,\n[\n3,\n4\n],\n];",
options: [{ multiline: true }]
},
// { multiline: false }
{ code: "var foo = [];", options: [{ multiline: false }] },
{ code: "var foo = [1];", options: [{ multiline: false }] },
{
code: "var foo = [1]/* any comment*/;",
options: [{ multiline: false }]
},
{
code: "var foo = [1]\n/* any comment*/\n;",
options: [{ multiline: false }]
},
{ code: "var foo = [1, 2];", options: [{ multiline: false }] },
{ code: "var foo = [1,\n2];", options: [{ multiline: false }] },
{
code: "var foo = [function foo() {\nreturn dosomething();\n}];",
options: [{ multiline: false }]
},
{ code: "var foo = [1,\n2,[3,\n4]];", options: [{ multiline: false }] },
// { minItems: 2 }
{ code: "var foo = [];", options: [{ minItems: 2 }] },
{ code: "var foo = [1];", options: [{ minItems: 2 }] },
{ code: "var foo = [\n1, 2\n];", options: [{ minItems: 2 }] },
{ code: "var foo = [\n1,\n2\n];", options: [{ minItems: 2 }] },
{
code: "var foo = [function foo() {\ndosomething();\n}];",
options: [{ minItems: 2 }]
},
{
code: `var foo = [
1,[
2,3
]
];`,
options: [{ minItems: 2 }]
},
{
code: `var foo = [[
1,2
]]`,
options: [{ minItems: 2 }]
},
// { minItems: 0 }
{ code: "var foo = [\n];", options: [{ minItems: 0 }] },
{ code: "var foo = [\n1\n];", options: [{ minItems: 0 }] },
{ code: "var foo = [\n1, 2\n];", options: [{ minItems: 0 }] },
{ code: "var foo = [\n1,\n2\n];", options: [{ minItems: 0 }] },
{
code: "var foo = [\nfunction foo() {\ndosomething();\n}\n];",
options: [{ minItems: 0 }]
},
// { minItems: null }
{ code: "var foo = [];", options: [{ minItems: null }] },
{ code: "var foo = [1];", options: [{ minItems: null }] },
{ code: "var foo = [1, 2];", options: [{ minItems: null }] },
{ code: "var foo = [1,\n2];", options: [{ minItems: null }] },
{
code: "var foo = [function foo() {\ndosomething();\n}];",
options: [{ minItems: null }]
},
// { multiline: true, minItems: null }
{
code: "var foo = [];",
options: [{ multiline: true, minItems: null }]
},
{
code: "var foo = [1];",
options: [{ multiline: true, minItems: null }]
},
{
code: "var foo = [1, 2];",
options: [{ multiline: true, minItems: null }]
},
{
code: "var foo = [\n1,\n2\n];",
options: [{ multiline: true, minItems: null }]
},
{
code: "var foo = [\nfunction foo() {\ndosomething();\n}\n];",
options: [{ multiline: true, minItems: null }]
},
// { multiline: true, minItems: 2 }
{ code: "var a = [];", options: [{ multiline: true, minItems: 2 }] },
{ code: "var b = [1];", options: [{ multiline: true, minItems: 2 }] },
{
code: "var b = [ // any comment\n1\n];",
options: [{ multiline: true, minItems: 2 }]
},
{
code: "var b = [ /* any comment */ 1];",
options: [{ multiline: true, minItems: 2 }]
},
{
code: "var c = [\n1, 2\n];",
options: [{ multiline: true, minItems: 2 }]
},
{
code: "var c = [\n/* any comment */1, 2\n];",
options: [{ multiline: true, minItems: 2 }]
},
{
code: "var c = [\n1, /* any comment */ 2\n];",
options: [{ multiline: true, minItems: 2 }]
},
{
code: "var d = [\n1,\n2\n];",
options: [{ multiline: true, minItems: 2 }]
},
{
code: "var e = [\nfunction foo() {\ndosomething();\n}\n];",
options: [{ multiline: true, minItems: 2 }]
},
/*
* ArrayPattern
* default { multiline: true }
*/
{ code: "var [] = foo", languageOptions: { ecmaVersion: 6 } },
{ code: "var [a] = foo;", languageOptions: { ecmaVersion: 6 } },
{
code: "var /* any comment */[a] = foo;",
languageOptions: { ecmaVersion: 6 }
},
{
code: "var /* any comment */\n[a] = foo;",
languageOptions: { ecmaVersion: 6 }
},
{ code: "var [a, b] = foo;", languageOptions: { ecmaVersion: 6 } },
{
code: "var [ // any comment\na, b\n] = foo;",
languageOptions: { ecmaVersion: 6 }
},
{
code: "var [\n// any comment\na, b\n] = foo;",
languageOptions: { ecmaVersion: 6 }
},
{
code: "var [\na, b\n// any comment\n] = foo;",
languageOptions: { ecmaVersion: 6 }
},
{ code: "var [\na,\nb\n] = foo;", languageOptions: { ecmaVersion: 6 } },
// "always"
{
code: "var [\n] = foo;",
options: ["always"],
languageOptions: { ecmaVersion: 6 }
},
{
code: "var [\na\n] = foo;",
options: ["always"],
languageOptions: { ecmaVersion: 6 }
},
{
code: "var [\n// any\na\n] = foo;",
options: ["always"],
languageOptions: { ecmaVersion: 6 }
},
{
code: "var [\n/* any */\na\n] = foo;",
options: ["always"],
languageOptions: { ecmaVersion: 6 }
},
{
code: "var [\na, b\n] = foo;",
options: ["always"],
languageOptions: { ecmaVersion: 6 }
},
{
code: "var [\na, b // any comment\n] = foo;",
options: ["always"],
languageOptions: { ecmaVersion: 6 }
},
{
code: "var [\na, b /* any comment */\n] = foo;",
options: ["always"],
languageOptions: { ecmaVersion: 6 }
},
{
code: "var [\na,\nb\n] = foo;",
options: ["always"],
languageOptions: { ecmaVersion: 6 }
},
// "consistent"
{
code: "var [] = foo",
options: ["consistent"],
languageOptions: { ecmaVersion: 6 }
},
{
code: "var [\n] = foo",
options: ["consistent"],
languageOptions: { ecmaVersion: 6 }
},
{
code: "var [a] = foo",
options: ["consistent"],
languageOptions: { ecmaVersion: 6 }
},
{
code: "var [\na\n] = foo",
options: ["consistent"],
languageOptions: { ecmaVersion: 6 }
},
{
code: "var [//\na\n] = foo",
options: ["consistent"],
languageOptions: { ecmaVersion: 6 }
},
{
code: "var [/**/\na\n] = foo",
options: ["consistent"],
languageOptions: { ecmaVersion: 6 }
},
{
code: "var [/*\n*/a\n] = foo",
options: ["consistent"],
languageOptions: { ecmaVersion: 6 }
},
{
code: "var [//\n] = foo",
options: ["consistent"],
languageOptions: { ecmaVersion: 6 }
},
// { multiline: true }
{
code: "var [] = foo;",
options: [{ multiline: true }],
languageOptions: { ecmaVersion: 6 }
},
{
code: "var [a] = foo;",
options: [{ multiline: true }],
languageOptions: { ecmaVersion: 6 }
},
{
code: "var /* any comment */[a] = foo;",
options: [{ multiline: true }],
languageOptions: { ecmaVersion: 6 }
},
{
code: "var /* any comment */\n[a] = foo;",
options: [{ multiline: true }],
languageOptions: { ecmaVersion: 6 }
},
{
code: "var [a, b] = foo;",
options: [{ multiline: true }],
languageOptions: { ecmaVersion: 6 }
},
{
code: "var [ // any comment\na, b\n] = foo;",
options: [{ multiline: true }],
languageOptions: { ecmaVersion: 6 }
},
{
code: "var [\n// any comment\na, b\n] = foo;",
options: [{ multiline: true }],
languageOptions: { ecmaVersion: 6 }
},
{
code: "var [\na, b\n// any comment\n] = foo;",
options: [{ multiline: true }],
languageOptions: { ecmaVersion: 6 }
},
{
code: "var [\na,\nb\n] = foo;",
options: [{ multiline: true }],
languageOptions: { ecmaVersion: 6 }
}
],
invalid: [
// default : { multiline : true}
{
code: `var foo = [
[1,2]
]`,
output: "var foo = [[1,2]]",
errors: [
{
messageId: "unexpectedOpeningLinebreak",
type: "ArrayExpression",
line: 1,
column: 11,
endLine: 1,
endColumn: 12
},
{
messageId: "unexpectedClosingLinebreak",
type: "ArrayExpression",
line: 3,
column: 13,
endLine: 3,
endColumn: 14
}
]
},
{
code: "var foo = [[2,\n3]]",
output: "var foo = [\n[\n2,\n3\n]\n]",
errors: [
{
line: 1,
column: 11,
messageId: "missingOpeningLinebreak",
endLine: 1,
endColumn: 12
},
{
line: 1,
column: 12,
messageId: "missingOpeningLinebreak",
endLine: 1,
endColumn: 13
},
{
line: 2,
column: 2,
messageId: "missingClosingLinebreak",
endLine: 2,
endColumn: 3
},
{
line: 2,
column: 3,
messageId: "missingClosingLinebreak",
endLine: 2,
endColumn: 4
}
]
},
/*
* ArrayExpression
* "always"
*/
{
code: "var foo = [[1,2]]",
output: "var foo = [\n[\n1,2\n]\n]",
options: ["always"],
errors: [
{
line: 1,
column: 11,
messageId: "missingOpeningLinebreak",
endLine: 1,
endColumn: 12
},
{
line: 1,
column: 12,
messageId: "missingOpeningLinebreak",
endLine: 1,
endColumn: 13
},
{
line: 1,
column: 16,
messageId: "missingClosingLinebreak",
endLine: 1,
endColumn: 17
},
{
line: 1,
column: 17,
messageId: "missingClosingLinebreak",
endLine: 1,
endColumn: 18
}
]
},
{
code: "var foo = [];",
output: "var foo = [\n];",
options: ["always"],
errors: [
{
messageId: "missingOpeningLinebreak",
type: "ArrayExpression",
line: 1,
column: 11,
endLine: 1,
endColumn: 12
},
{
messageId: "missingClosingLinebreak",
type: "ArrayExpression",
line: 1,
column: 12,
endLine: 1,
endColumn: 13
}
]
},
{
code: "var foo = [1];",
output: "var foo = [\n1\n];",
options: ["always"],
errors: [
{
messageId: "missingOpeningLinebreak",
type: "ArrayExpression",
line: 1,
column: 11
},
{
messageId: "missingClosingLinebreak",
type: "ArrayExpression",
line: 1,
column: 13
}
]
},
{
code: "var foo = [ // any comment\n1];",
output: "var foo = [ // any comment\n1\n];",
options: ["always"],
errors: [
{
messageId: "missingClosingLinebreak",
type: "ArrayExpression",
line: 2,
column: 2,
endLine: 2,
endColumn: 3
}
]
},
{
code: "var foo = [ /* any comment */\n1];",
output: "var foo = [ /* any comment */\n1\n];",
options: ["always"],
errors: [
{
messageId: "missingClosingLinebreak",
type: "ArrayExpression",
line: 2,
column: 2
}
]
},
{
code: "var foo = [1, 2];",
output: "var foo = [\n1, 2\n];",
options: ["always"],
errors: [
{
messageId: "missingOpeningLinebreak",
type: "ArrayExpression",
line: 1,
column: 11,
endLine: 1,
endColumn: 12
},
{
messageId: "missingClosingLinebreak",
type: "ArrayExpression",
line: 1,
column: 16,
endLine: 1,
endColumn: 17
}
]
},
{
code: "var foo = [1, 2 // any comment\n];",
output: "var foo = [\n1, 2 // any comment\n];",
options: ["always"],
errors: [
{
messageId: "missingOpeningLinebreak",
type: "ArrayExpression",
line: 1,
column: 11
}
]
},
{
code: "var foo = [1, 2 /* any comment */];",
output: "var foo = [\n1, 2 /* any comment */\n];",
options: ["always"],
errors: [
{
messageId: "missingOpeningLinebreak",
type: "ArrayExpression",
line: 1,
column: 11
},
{
messageId: "missingClosingLinebreak",
type: "ArrayExpression",
line: 1,
column: 34
}
]
},
{
code: "var foo = [1,\n2];",
output: "var foo = [\n1,\n2\n];",
options: ["always"],
errors: [
{
messageId: "missingOpeningLinebreak",
type: "ArrayExpression",
line: 1,
column: 11
},
{
messageId: "missingClosingLinebreak",
type: "ArrayExpression",
line: 2,
column: 2
}
]
},
{
code: "var foo = [function foo() {\ndosomething();\n}];",
output: "var foo = [\nfunction foo() {\ndosomething();\n}\n];",
options: ["always"],
errors: [
{
messageId: "missingOpeningLinebreak",
type: "ArrayExpression",
line: 1,
column: 11
},
{
messageId: "missingClosingLinebreak",
type: "ArrayExpression",
line: 3,
column: 2
}
]
},
// "never"
{
code: `var foo = [[
1,2],3];`,
output: "var foo = [[1,2],3];",
options: ["never"],
errors: [
{
line: 1,
column: 12,
messageId: "unexpectedOpeningLinebreak",
endLine: 1,
endColumn: 13
}
]
},
{
code: "var foo = [\n];",
output: "var foo = [];",
options: ["never"],
errors: [
{
messageId: "unexpectedOpeningLinebreak",
type: "ArrayExpression",
line: 1,
column: 11
},
{
messageId: "unexpectedClosingLinebreak",
type: "ArrayExpression",
line: 2,
column: 1
}
]
},
{
code: "var foo = [\n1\n];",
output: "var foo = [1];",
options: ["never"],
errors: [
{
messageId: "unexpectedOpeningLinebreak",
type: "ArrayExpression",
line: 1,
column: 11,
endLine: 1,
endColumn: 12
},
{
messageId: "unexpectedClosingLinebreak",
type: "ArrayExpression",
line: 3,
column: 1,
endLine: 3,
endColumn: 2
}
]
},
{
code: "var foo = [ /* any comment */\n1, 2\n];",
output: "var foo = [ /* any comment */\n1, 2];",
options: ["never"],
errors: [
{
messageId: "unexpectedOpeningLinebreak",
type: "ArrayExpression",
line: 1,
column: 11
},
{
messageId: "unexpectedClosingLinebreak",
type: "ArrayExpression",
line: 3,
column: 1
}
]
},
{
code: "var foo = [\n1, 2\n/* any comment */];",
output: "var foo = [1, 2\n/* any comment */];",
options: ["never"],
errors: [
{
messageId: "unexpectedOpeningLinebreak",
type: "ArrayExpression",
line: 1,
column: 11
},
{
messageId: "unexpectedClosingLinebreak",
type: "ArrayExpression",
line: 3,
column: 18
}
]
},
{
code: "var foo = [ // any comment\n1, 2\n];",
output: "var foo = [ // any comment\n1, 2];",
options: ["never"],
errors: [
{
messageId: "unexpectedOpeningLinebreak",
type: "ArrayExpression",
line: 1,
column: 11
},
{
messageId: "unexpectedClosingLinebreak",
type: "ArrayExpression",
line: 3,
column: 1
}
]
},
{
code: "var foo = [\n1,\n2\n];",
output: "var foo = [1,\n2];",
options: ["never"],
errors: [
{
messageId: "unexpectedOpeningLinebreak",
type: "ArrayExpression",
line: 1,
column: 11
},
{
messageId: "unexpectedClosingLinebreak",
type: "ArrayExpression",
line: 4,
column: 1
}
]
},
{
code: "var foo = [\nfunction foo() {\ndosomething();\n}\n];",
output: "var foo = [function foo() {\ndosomething();\n}];",
options: ["never"],
errors: [
{
messageId: "unexpectedOpeningLinebreak",
type: "ArrayExpression",
line: 1,
column: 11
},
{
messageId: "unexpectedClosingLinebreak",
type: "ArrayExpression",
line: 5,
column: 1
}
]
},
// "consistent"
{
code: `var a = [[1,2]
]`,
output: "var a = [[1,2]]",
options: ["consistent"],
errors: [
{
line: 2,
column: 13,
messageId: "unexpectedClosingLinebreak",
endLine: 2,
endColumn: 14
}
]
},
{
code: "var a = [\n[\n[1,2]]\n]",
output: "var a = [\n[\n[1,2]\n]\n]",
options: ["consistent"],
errors: [
{
line: 3,
column: 6,
messageId: "missingClosingLinebreak",
endLine: 3,
endColumn: 7
}
]
},
{
code: "var foo = [\n1]",
output: "var foo = [\n1\n]",
options: ["consistent"],
errors: [
{
messageId: "missingClosingLinebreak",
type: "ArrayExpression",
line: 2,
column: 2,
endLine: 2,
endColumn: 3
}
]
},
{
code: "var foo = [1\n]",
output: "var foo = [1]",
options: ["consistent"],
errors: [
{
messageId: "unexpectedClosingLinebreak",
type: "ArrayExpression",
line: 2,
column: 1,
endLine: 2,
endColumn: 2
}
]
},
{
code: "var foo = [//\n1]",
output: "var foo = [//\n1\n]",
options: ["consistent"],
errors: [
{
messageId: "missingClosingLinebreak",
type: "ArrayExpression",
line: 2,
column: 2,
endLine: 2,
endColumn: 3
}
]
},
// { multiline: true }
{
code: "var foo = [\n];",
output: "var foo = [];",
options: [{ multiline: true }],
errors: [
{
messageId: "unexpectedOpeningLinebreak",
type: "ArrayExpression",
line: 1,
column: 11
},
{
messageId: "unexpectedClosingLinebreak",
type: "ArrayExpression",
line: 2,
column: 1
}
]
},
{
code: "var foo = [\n// any comment\n];",
output: null,
options: [{ multiline: true }],
errors: [
{
messageId: "unexpectedOpeningLinebreak",
type: "ArrayExpression",
line: 1,
column: 11
},
{
messageId: "unexpectedClosingLinebreak",
type: "ArrayExpression",
line: 3,
column: 1
}
]
},
{
code: "var foo = [\n1\n];",
output: "var foo = [1];",
options: [{ multiline: true }],
errors: [
{
messageId: "unexpectedOpeningLinebreak",
type: "ArrayExpression",
line: 1,
column: 11
},
{
messageId: "unexpectedClosingLinebreak",
type: "ArrayExpression",
line: 3,
column: 1
}
]
},
{
code: "var foo = [\n1, 2\n];",
output: "var foo = [1, 2];",
options: [{ multiline: true }],
errors: [
{
messageId: "unexpectedOpeningLinebreak",