eslint/tests/lib/rules/dot-location.js

   1 /**
   2  * @fileoverview Tests for dot-location.
   3  * @author Greg Cochard
   4  */
   5
   6 "use strict";
   7
   8 //------------------------------------------------------------------------------
   9 // Requirements
  10 //------------------------------------------------------------------------------
  11
  12 const rule = require("../../../lib/rules/dot-location"),
  13     { RuleTester } = require("../../../lib/rule-tester");
  14
  15 //------------------------------------------------------------------------------
  16 // Tests
  17 //------------------------------------------------------------------------------
  18
  19 const ruleTester = new RuleTester();
  20
  21 ruleTester.run("dot-location", rule, {
  22     valid: [
  23         "obj.\nprop",
  24         "obj. \nprop",
  25         "obj.\n prop",
  26         "(obj).\nprop",
  27         "obj\n['prop']",
  28         "obj['prop']",
  29         {
  30             code: "obj.\nprop",
  31             options: ["object"]
  32         },
  33         {
  34             code: "obj\n.prop",
  35             options: ["property"]
  36         },
  37         {
  38             code: "(obj)\n.prop",
  39             options: ["property"]
  40         },
  41         {
  42             code: "obj . prop",
  43             options: ["object"]
  44         },
  45         {
  46             code: "obj /* a */ . prop",
  47             options: ["object"]
  48         },
  49         {
  50             code: "obj . \nprop",
  51             options: ["object"]
  52         },
  53         {
  54             code: "obj . prop",
  55             options: ["property"]
  56         },
  57         {
  58             code: "obj . /* a */ prop",
  59             options: ["property"]
  60         },
  61         {
  62             code: "obj\n. prop",
  63             options: ["property"]
  64         },
  65         {
  66             code: "f(a\n).prop",
  67             options: ["object"]
  68         },
  69         {
  70             code: "`\n`.prop",
  71             options: ["object"],
  72             parserOptions: { ecmaVersion: 6 }
  73         },
  74         {
  75             code: "obj[prop]",
  76             options: ["object"]
  77         },
  78         {
  79             code: "obj\n[prop]",
  80             options: ["object"]
  81         },
  82         {
  83             code: "obj[\nprop]",
  84             options: ["object"]
  85         },
  86         {
  87             code: "obj\n[\nprop\n]",
  88             options: ["object"]
  89         },
  90         {
  91             code: "obj[prop]",
  92             options: ["property"]
  93         },
  94         {
  95             code: "obj\n[prop]",
  96             options: ["property"]
  97         },
  98         {
  99             code: "obj[\nprop]",
 100             options: ["property"]
 101         },
 102         {
 103             code: "obj\n[\nprop\n]",
 104             options: ["property"]
 105         },
 106
 107         // https://github.com/eslint/eslint/issues/11868 (also in invalid)
 108         {
 109             code: "(obj).prop",
 110             options: ["object"]
 111         },
 112         {
 113             code: "(obj).\nprop",
 114             options: ["object"]
 115         },
 116         {
 117             code: "(obj\n).\nprop",
 118             options: ["object"]
 119         },
 120         {
 121             code: "(\nobj\n).\nprop",
 122             options: ["object"]
 123         },
 124         {
 125             code: "((obj\n)).\nprop",
 126             options: ["object"]
 127         },
 128         {
 129             code: "(f(a)\n).\nprop",
 130             options: ["object"]
 131         },
 132         {
 133             code: "((obj\n)\n).\nprop",
 134             options: ["object"]
 135         },
 136         {
 137             code: "(\na &&\nb()\n).toString()",
 138             options: ["object"]
 139         }
 140     ],
 141     invalid: [
 142         {
 143             code: "obj\n.property",
 144             output: "obj.\nproperty",
 145             options: ["object"],
 146             errors: [{ messageId: "expectedDotAfterObject", type: "MemberExpression", line: 2, column: 1, endLine: 2, endColumn: 2 }]
 147         },
 148         {
 149             code: "obj.\nproperty",
 150             output: "obj\n.property",
 151             options: ["property"],
 152             errors: [{ messageId: "expectedDotBeforeProperty", type: "MemberExpression", line: 1, column: 4, endLine: 1, endColumn: 5 }]
 153         },
 154         {
 155             code: "(obj).\nproperty",
 156             output: "(obj)\n.property",
 157             options: ["property"],
 158             errors: [{ messageId: "expectedDotBeforeProperty", type: "MemberExpression", line: 1, column: 6 }]
 159         },
 160         {
 161             code: "5\n.toExponential()",
 162             output: "5 .\ntoExponential()",
 163             options: ["object"],
 164             errors: [{ messageId: "expectedDotAfterObject", type: "MemberExpression", line: 2, column: 1 }]
 165         },
 166         {
 167             code: "-5\n.toExponential()",
 168             output: "-5 .\ntoExponential()",
 169             options: ["object"],
 170             errors: [{ messageId: "expectedDotAfterObject", type: "MemberExpression", line: 2, column: 1 }]
 171         },
 172         {
 173             code: "foo /* a */ . /* b */ \n /* c */ bar",
 174             output: "foo /* a */  /* b */ \n /* c */ .bar",
 175             options: ["property"],
 176             errors: [{ messageId: "expectedDotBeforeProperty", type: "MemberExpression", line: 1, column: 13 }]
 177         },
 178         {
 179             code: "foo /* a */ \n /* b */ . /* c */ bar",
 180             output: "foo. /* a */ \n /* b */  /* c */ bar",
 181             options: ["object"],
 182             errors: [{ messageId: "expectedDotAfterObject", type: "MemberExpression", line: 2, column: 10 }]
 183         },
 184         {
 185             code: "f(a\n)\n.prop",
 186             output: "f(a\n).\nprop",
 187             options: ["object"],
 188             errors: [{ messageId: "expectedDotAfterObject", type: "MemberExpression", line: 3, column: 1 }]
 189         },
 190         {
 191             code: "`\n`\n.prop",
 192             output: "`\n`.\nprop",
 193             options: ["object"],
 194             parserOptions: { ecmaVersion: 6 },
 195             errors: [{ messageId: "expectedDotAfterObject", type: "MemberExpression", line: 3, column: 1 }]
 196         },
 197
 198         // https://github.com/eslint/eslint/issues/11868 (also in valid)
 199         {
 200             code: "(a\n)\n.prop",
 201             output: "(a\n).\nprop",
 202             options: ["object"],
 203             errors: [{ messageId: "expectedDotAfterObject", type: "MemberExpression", line: 3, column: 1 }]
 204         },
 205         {
 206             code: "(a\n)\n.\nprop",
 207             output: "(a\n).\n\nprop",
 208             options: ["object"],
 209             errors: [{ messageId: "expectedDotAfterObject", type: "MemberExpression", line: 3, column: 1 }]
 210         },
 211         {
 212             code: "(f(a)\n)\n.prop",
 213             output: "(f(a)\n).\nprop",
 214             options: ["object"],
 215             errors: [{ messageId: "expectedDotAfterObject", type: "MemberExpression", line: 3, column: 1 }]
 216         },
 217         {
 218             code: "(f(a\n)\n)\n.prop",
 219             output: "(f(a\n)\n).\nprop",
 220             options: ["object"],
 221             errors: [{ messageId: "expectedDotAfterObject", type: "MemberExpression", line: 4, column: 1 }]
 222         },
 223         {
 224             code: "((obj\n))\n.prop",
 225             output: "((obj\n)).\nprop",
 226             options: ["object"],
 227             errors: [{ messageId: "expectedDotAfterObject", type: "MemberExpression", line: 3, column: 1 }]
 228         },
 229         {
 230             code: "((obj\n)\n)\n.prop",
 231             output: "((obj\n)\n).\nprop",
 232             options: ["object"],
 233             errors: [{ messageId: "expectedDotAfterObject", type: "MemberExpression", line: 4, column: 1 }]
 234         },
 235         {
 236             code: "(a\n) /* a */ \n.prop",
 237             output: "(a\n). /* a */ \nprop",
 238             options: ["object"],
 239             errors: [{ messageId: "expectedDotAfterObject", type: "MemberExpression", line: 3, column: 1 }]
 240         },
 241         {
 242             code: "(a\n)\n/* a */\n.prop",
 243             output: "(a\n).\n/* a */\nprop",
 244             options: ["object"],
 245             errors: [{ messageId: "expectedDotAfterObject", type: "MemberExpression", line: 4, column: 1 }]
 246         },
 247         {
 248             code: "(a\n)\n/* a */.prop",
 249             output: "(a\n).\n/* a */prop",
 250             options: ["object"],
 251             errors: [{ messageId: "expectedDotAfterObject", type: "MemberExpression", line: 3, column: 8 }]
 252         },
 253         {
 254             code: "(5)\n.toExponential()",
 255             output: "(5).\ntoExponential()",
 256             options: ["object"],
 257             errors: [{ messageId: "expectedDotAfterObject", type: "MemberExpression", line: 2, column: 1 }]
 258         }
 259     ]
 260 });