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Chore: add nested array tests for array-element-newline (#13161)
* Chore: nested array tests for array-element-newline

* Chore: linting fixes
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anikethsaha committed Apr 23, 2020
1 parent 63ac918 commit e4f57b7
Showing 1 changed file with 88 additions and 0 deletions.
88 changes: 88 additions & 0 deletions tests/lib/rules/array-element-newline.js
Expand Up @@ -43,6 +43,8 @@ ruleTester.run("array-element-newline", rule, {
"var foo = [1\n, 2\n, 3];",
"var foo = [1,\n2,\n,\n3];",
"var foo = [\nfunction foo() {\ndosomething();\n},\nfunction bar() {\nosomething();\n}\n];",
"var foo = [1,\n[2,\n3],\n4]",
"var foo = [[],\n[\n[]]]",

{ code: "var foo = [];", options: ["always"] },
{ code: "var foo = [1];", options: ["always"] },
Expand All @@ -54,6 +56,7 @@ ruleTester.run("array-element-newline", rule, {
{ code: "var foo = [1,\n2 // any comment\n];", options: ["always"] },
{ code: "var foo = [1,\n2,\n3];", options: ["always"] },
{ code: "var foo = [\nfunction foo() {\ndosomething();\n},\nfunction bar() {\ndosomething();\n}\n];", options: ["always"] },
{ code: "var foo = [\n[1,\n2],\n3,\n[\n4]]", options: ["always"] },

// "never"
{ code: "var foo = [];", options: ["never"] },
Expand All @@ -65,6 +68,8 @@ ruleTester.run("array-element-newline", rule, {
{ code: "var foo = [1, 2, 3];", options: ["never"] },
{ code: "var foo = [1, (\n2\n), 3];", options: ["never"] },
{ code: "var foo = [\nfunction foo() {\ndosomething();\n}, function bar() {\ndosomething();\n}\n];", options: ["never"] },
{ code: "var foo = [\n[1,2],3,[4]\n]", options: ["never"] },
{ code: "var foo = [[1,2\n],3,[4\n]\n]", options: ["never"] },

// "consistent"
{ code: "var foo = [];", options: ["consistent"] },
Expand All @@ -82,34 +87,41 @@ ruleTester.run("array-element-newline", rule, {
{ code: "var foo = [\nfunction foo() {\ndosomething();\n}, function bar() {\ndosomething();\n}\n];", options: ["consistent"] },
{ code: "var foo = [\nfunction foo() {\ndosomething();\n},\nfunction bar() {\ndosomething();\n},\nfunction bar() {\ndosomething();\n}];", options: ["consistent"] },
{ code: "var foo = [\nfunction foo() {\ndosomething();\n}, function bar() {\ndosomething();\n}, function bar() {\ndosomething();\n}];", options: ["consistent"] },
{ code: "var foo = [1,\n[\n2,3,\n]\n];", options: ["consistent"] },
{ code: "var foo = [\n1,\n[2\n,3\n,]\n];", options: ["consistent"] },
{ code: "var foo = [\n1,[2,\n3]];", options: ["consistent"] },

// { multiline: true }
{ code: "var foo = [];", options: [{ multiline: true }] },
{ code: "var foo = [1];", options: [{ multiline: true }] },
{ code: "var foo = [1, 2];", options: [{ multiline: true }] },
{ code: "var foo = [1, 2, 3];", options: [{ multiline: true }] },
{ code: "var f = [\nfunction foo() {\ndosomething();\n},\nfunction bar() {\ndosomething();\n}\n];", options: [{ multiline: true }] },
{ code: "var foo = [\n1,\n2,\n3,\n[\n]\n];", options: [{ multiline: true }] },

// { 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, 2, 3];", options: [{ minItems: null }] },
{ code: "var foo = [\nfunction foo() {\ndosomething();\n}, function bar() {\ndosomething();\n}\n];", options: [{ minItems: null }] },
{ code: "var foo = [1, 2, 3, [[],1,[[]]]];", options: [{ minItems: null }] },

// { minItems: 0 }
{ code: "var foo = [];", options: [{ minItems: 0 }] },
{ code: "var foo = [1];", options: [{ minItems: 0 }] },
{ code: "var foo = [1,\n2];", options: [{ minItems: 0 }] },
{ code: "var foo = [1,\n2,\n3];", options: [{ minItems: 0 }] },
{ code: "var foo = [\nfunction foo() {\ndosomething();\n},\nfunction bar() {\ndosomething();\n}\n];", options: [{ minItems: 0 }] },
{ code: "var foo = [\n1, \n2, \n3,\n[\n[],\n[]],\n[]];", options: [{ minItems: 0 }] },

// { minItems: 3 }
{ code: "var foo = [];", options: [{ minItems: 3 }] },
{ code: "var foo = [1];", options: [{ minItems: 3 }] },
{ code: "var foo = [1, 2];", options: [{ minItems: 3 }] },
{ code: "var foo = [1,\n2,\n3];", options: [{ minItems: 3 }] },
{ code: "var foo = [\nfunction foo() {\ndosomething();\n}, function bar() {\ndosomething();\n}\n];", options: [{ minItems: 3 }] },
{ code: "var foo = [[1,2],[[\n1,\n2,\n3]]];", options: [{ minItems: 3 }] },

// { multiline: true, minItems: 3 }
{ code: "var foo = [];", options: [{ multiline: true, minItems: 3 }] },
Expand All @@ -130,6 +142,10 @@ ruleTester.run("array-element-newline", rule, {
{ code: "var [// any comment \na,\nb] = foo;", parserOptions: { ecmaVersion: 6 } },
{ code: "var [a,\nb // any comment\n] = foo;", parserOptions: { ecmaVersion: 6 } },
{ code: "var [a,\nb,\nb] = foo;", parserOptions: { ecmaVersion: 6 } },
{ code: "var [\na,\n[\nb,\nc]] = foo;", parserOptions: { ecmaVersion: 6 } },

// "never"
{ code: "var [a,[b,c]] = foo;", options: ["never"], parserOptions: { ecmaVersion: 6 } },

// { minItems: 3 }
{ code: "var [] = foo;", options: [{ minItems: 3 }], parserOptions: { ecmaVersion: 6 } },
Expand All @@ -144,6 +160,19 @@ ruleTester.run("array-element-newline", rule, {
{ code: "var [a, b] = [1,\n2]", options: [{ ArrayExpression: "always", ArrayPattern: "never" }], parserOptions: { ecmaVersion: 6 } }],

invalid: [
{
code: "var foo = [\n1,[2,\n3]]",
output: "var foo = [\n1,\n[2,\n3]]",
errors: [
{
line: 2,
column: 3,
messageId: "missingLineBreak",
endLine: 2,
endColumn: 3
}
]
},

/*
* ArrayExpression
Expand Down Expand Up @@ -363,6 +392,18 @@ ruleTester.run("array-element-newline", rule, {
}
]
},
{
code: "var foo = [\n[1,\n2],\n3,[\n4]]",
output: "var foo = [\n[1,\n2],\n3,\n[\n4]]",
options: ["always"],
errors: [
{
line: 4,
column: 3,
messageId: "missingLineBreak"
}
]
},

// "never"
{
Expand Down Expand Up @@ -471,6 +512,19 @@ ruleTester.run("array-element-newline", rule, {
]
},

{
code: "var foo = [[1,\n2\n],3,[4\n]\n]",
output: "var foo = [[1, 2\n],3,[4\n]\n]",
options: ["never"],
errors: [
{
line: 1,
column: 15,
messageId: "unexpectedLineBreak"
}
]
},

// "consistent"
{
code: "var foo = [1,\n2, 3];",
Expand Down Expand Up @@ -552,6 +606,23 @@ ruleTester.run("array-element-newline", rule, {
}
]
},
{
code: "var foo = [\n1,[2,3,\n[]],\n[]\n];",
output: "var foo = [\n1,\n[2,\n3,\n[]],\n[]\n];",
options: ["consistent"],
errors: [
{
line: 2,
column: 3,
messageId: "missingLineBreak"
},
{
line: 2,
column: 6,
messageId: "missingLineBreak"
}
]
},

// { multiline: true }
{
Expand Down Expand Up @@ -590,6 +661,23 @@ ruleTester.run("array-element-newline", rule, {
}
]
},
{
code: "var foo = [\n1,2,3,\n[\n]\n];",
output: "var foo = [\n1,\n2,\n3,\n[\n]\n];",
options: [{ multiline: true }],
errors: [
{
line: 2,
column: 3,
messageId: "missingLineBreak"
},
{
line: 2,
column: 5,
messageId: "missingLineBreak"
}
]
},

// { minItems: null }
{
Expand Down

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