eslint/tests/lib/rules/no-import-assign.js

   1 /**
   2  * @fileoverview Tests for no-import-assign rule.
   3  * @author Toru Nagashima <https://github.com/mysticatea>
   4  */
   5
   6 "use strict";
   7
   8 //------------------------------------------------------------------------------
   9 // Requirements
  10 //------------------------------------------------------------------------------
  11
  12 const rule = require("../../../lib/rules/no-import-assign"),
  13     { RuleTester } = require("../../../lib/rule-tester");
  14
  15 //------------------------------------------------------------------------------
  16 // Tests
  17 //------------------------------------------------------------------------------
  18
  19 const ruleTester = new RuleTester({
  20     parserOptions: {
  21         ecmaVersion: 2018,
  22         sourceType: "module"
  23     },
  24     globals: {
  25         Reflect: "readonly"
  26     }
  27 });
  28
  29 ruleTester.run("no-import-assign", rule, {
  30     valid: [
  31         "import mod from 'mod'; mod.prop = 0",
  32         "import mod from 'mod'; mod.prop += 0",
  33         "import mod from 'mod'; mod.prop++",
  34         "import mod from 'mod'; delete mod.prop",
  35         "import mod from 'mod'; for (mod.prop in foo);",
  36         "import mod from 'mod'; for (mod.prop of foo);",
  37         "import mod from 'mod'; [mod.prop] = foo;",
  38         "import mod from 'mod'; [...mod.prop] = foo;",
  39         "import mod from 'mod'; ({ bar: mod.prop } = foo);",
  40         "import mod from 'mod'; ({ ...mod.prop } = foo);",
  41         "import {named} from 'mod'; named.prop = 0",
  42         "import {named} from 'mod'; named.prop += 0",
  43         "import {named} from 'mod'; named.prop++",
  44         "import {named} from 'mod'; delete named.prop",
  45         "import {named} from 'mod'; for (named.prop in foo);",
  46         "import {named} from 'mod'; for (named.prop of foo);",
  47         "import {named} from 'mod'; [named.prop] = foo;",
  48         "import {named} from 'mod'; [...named.prop] = foo;",
  49         "import {named} from 'mod'; ({ bar: named.prop } = foo);",
  50         "import {named} from 'mod'; ({ ...named.prop } = foo);",
  51         "import * as mod from 'mod'; mod.named.prop = 0",
  52         "import * as mod from 'mod'; mod.named.prop += 0",
  53         "import * as mod from 'mod'; mod.named.prop++",
  54         "import * as mod from 'mod'; delete mod.named.prop",
  55         "import * as mod from 'mod'; for (mod.named.prop in foo);",
  56         "import * as mod from 'mod'; for (mod.named.prop of foo);",
  57         "import * as mod from 'mod'; [mod.named.prop] = foo;",
  58         "import * as mod from 'mod'; [...mod.named.prop] = foo;",
  59         "import * as mod from 'mod'; ({ bar: mod.named.prop } = foo);",
  60         "import * as mod from 'mod'; ({ ...mod.named.prop } = foo);",
  61         "import * as mod from 'mod'; obj[mod] = 0",
  62         "import * as mod from 'mod'; obj[mod.named] = 0",
  63         "import * as mod from 'mod'; for (var foo in mod.named);",
  64         "import * as mod from 'mod'; for (var foo of mod.named);",
  65         "import * as mod from 'mod'; [bar = mod.named] = foo;",
  66         "import * as mod from 'mod'; ({ bar = mod.named } = foo);",
  67         "import * as mod from 'mod'; ({ bar: baz = mod.named } = foo);",
  68         "import * as mod from 'mod'; ({ [mod.named]: bar } = foo);",
  69         "import * as mod from 'mod'; var obj = { ...mod.named };",
  70         "import * as mod from 'mod'; var obj = { foo: mod.named };",
  71         "import mod from 'mod'; { let mod = 0; mod = 1 }",
  72         "import * as mod from 'mod'; { let mod = 0; mod = 1 }",
  73         "import * as mod from 'mod'; { let mod = 0; mod.named = 1 }",
  74         "import {} from 'mod'",
  75         "import 'mod'",
  76         "import mod from 'mod'; Object.assign(mod, obj);",
  77         "import {named} from 'mod'; Object.assign(named, obj);",
  78         "import * as mod from 'mod'; Object.assign(mod.prop, obj);",
  79         "import * as mod from 'mod'; Object.assign(obj, mod, other);",
  80         "import * as mod from 'mod'; Object[assign](mod, obj);",
  81         "import * as mod from 'mod'; Object.getPrototypeOf(mod);",
  82         "import * as mod from 'mod'; Reflect.set(obj, key, mod);",
  83         "import * as mod from 'mod'; { var Object; Object.assign(mod, obj); }",
  84         "import * as mod from 'mod'; var Object; Object.assign(mod, obj);",
  85         "import * as mod from 'mod'; Object.seal(mod, obj)",
  86         "import * as mod from 'mod'; Object.preventExtensions(mod)",
  87         "import * as mod from 'mod'; Reflect.preventExtensions(mod)"
  88     ],
  89     invalid: [
  90         {
  91             code: "import mod1 from 'mod'; mod1 = 0",
  92             errors: [{ messageId: "readonly", data: { name: "mod1" }, column: 25 }]
  93         },
  94         {
  95             code: "import mod2 from 'mod'; mod2 += 0",
  96             errors: [{ messageId: "readonly", data: { name: "mod2" }, column: 25 }]
  97         },
  98         {
  99             code: "import mod3 from 'mod'; mod3++",
 100             errors: [{ messageId: "readonly", data: { name: "mod3" }, column: 25 }]
 101         },
 102         {
 103             code: "import mod4 from 'mod'; for (mod4 in foo);",
 104             errors: [{ messageId: "readonly", data: { name: "mod4" }, column: 25 }]
 105         },
 106         {
 107             code: "import mod5 from 'mod'; for (mod5 of foo);",
 108             errors: [{ messageId: "readonly", data: { name: "mod5" }, column: 25 }]
 109         },
 110         {
 111             code: "import mod6 from 'mod'; [mod6] = foo",
 112             errors: [{ messageId: "readonly", data: { name: "mod6" }, column: 25 }]
 113         },
 114         {
 115             code: "import mod7 from 'mod'; [mod7 = 0] = foo",
 116             errors: [{ messageId: "readonly", data: { name: "mod7" }, column: 25 }]
 117         },
 118         {
 119             code: "import mod8 from 'mod'; [...mod8] = foo",
 120             errors: [{ messageId: "readonly", data: { name: "mod8" }, column: 25 }]
 121         },
 122         {
 123             code: "import mod9 from 'mod'; ({ bar: mod9 } = foo)",
 124             errors: [{ messageId: "readonly", data: { name: "mod9" }, column: 26 }]
 125         },
 126         {
 127             code: "import mod10 from 'mod'; ({ bar: mod10 = 0 } = foo)",
 128             errors: [{ messageId: "readonly", data: { name: "mod10" }, column: 27 }]
 129         },
 130         {
 131             code: "import mod11 from 'mod'; ({ ...mod11 } = foo)",
 132             errors: [{ messageId: "readonly", data: { name: "mod11" }, column: 27 }]
 133         },
 134         {
 135             code: "import {named1} from 'mod'; named1 = 0",
 136             errors: [{ messageId: "readonly", data: { name: "named1" }, column: 29 }]
 137         },
 138         {
 139             code: "import {named2} from 'mod'; named2 += 0",
 140             errors: [{ messageId: "readonly", data: { name: "named2" }, column: 29 }]
 141         },
 142         {
 143             code: "import {named3} from 'mod'; named3++",
 144             errors: [{ messageId: "readonly", data: { name: "named3" }, column: 29 }]
 145         },
 146         {
 147             code: "import {named4} from 'mod'; for (named4 in foo);",
 148             errors: [{ messageId: "readonly", data: { name: "named4" }, column: 29 }]
 149         },
 150         {
 151             code: "import {named5} from 'mod'; for (named5 of foo);",
 152             errors: [{ messageId: "readonly", data: { name: "named5" }, column: 29 }]
 153         },
 154         {
 155             code: "import {named6} from 'mod'; [named6] = foo",
 156             errors: [{ messageId: "readonly", data: { name: "named6" }, column: 29 }]
 157         },
 158         {
 159             code: "import {named7} from 'mod'; [named7 = 0] = foo",
 160             errors: [{ messageId: "readonly", data: { name: "named7" }, column: 29 }]
 161         },
 162         {
 163             code: "import {named8} from 'mod'; [...named8] = foo",
 164             errors: [{ messageId: "readonly", data: { name: "named8" }, column: 29 }]
 165         },
 166         {
 167             code: "import {named9} from 'mod'; ({ bar: named9 } = foo)",
 168             errors: [{ messageId: "readonly", data: { name: "named9" }, column: 30 }]
 169         },
 170         {
 171             code: "import {named10} from 'mod'; ({ bar: named10 = 0 } = foo)",
 172             errors: [{ messageId: "readonly", data: { name: "named10" }, column: 31 }]
 173         },
 174         {
 175             code: "import {named11} from 'mod'; ({ ...named11 } = foo)",
 176             errors: [{ messageId: "readonly", data: { name: "named11" }, column: 31 }]
 177         },
 178         {
 179             code: "import {named12 as foo} from 'mod'; foo = 0; named12 = 0",
 180             errors: [{ messageId: "readonly", data: { name: "foo" }, column: 37 }]
 181         },
 182         {
 183             code: "import * as mod1 from 'mod'; mod1 = 0",
 184             errors: [{ messageId: "readonly", data: { name: "mod1" }, column: 30 }]
 185         },
 186         {
 187             code: "import * as mod2 from 'mod'; mod2 += 0",
 188             errors: [{ messageId: "readonly", data: { name: "mod2" }, column: 30 }]
 189         },
 190         {
 191             code: "import * as mod3 from 'mod'; mod3++",
 192             errors: [{ messageId: "readonly", data: { name: "mod3" }, column: 30 }]
 193         },
 194         {
 195             code: "import * as mod4 from 'mod'; for (mod4 in foo);",
 196             errors: [{ messageId: "readonly", data: { name: "mod4" }, column: 30 }]
 197         },
 198         {
 199             code: "import * as mod5 from 'mod'; for (mod5 of foo);",
 200             errors: [{ messageId: "readonly", data: { name: "mod5" }, column: 30 }]
 201         },
 202         {
 203             code: "import * as mod6 from 'mod'; [mod6] = foo",
 204             errors: [{ messageId: "readonly", data: { name: "mod6" }, column: 30 }]
 205         },
 206         {
 207             code: "import * as mod7 from 'mod'; [mod7 = 0] = foo",
 208             errors: [{ messageId: "readonly", data: { name: "mod7" }, column: 30 }]
 209         },
 210         {
 211             code: "import * as mod8 from 'mod'; [...mod8] = foo",
 212             errors: [{ messageId: "readonly", data: { name: "mod8" }, column: 30 }]
 213         },
 214         {
 215             code: "import * as mod9 from 'mod'; ({ bar: mod9 } = foo)",
 216             errors: [{ messageId: "readonly", data: { name: "mod9" }, column: 31 }]
 217         },
 218         {
 219             code: "import * as mod10 from 'mod'; ({ bar: mod10 = 0 } = foo)",
 220             errors: [{ messageId: "readonly", data: { name: "mod10" }, column: 32 }]
 221         },
 222         {
 223             code: "import * as mod11 from 'mod'; ({ ...mod11 } = foo)",
 224             errors: [{ messageId: "readonly", data: { name: "mod11" }, column: 32 }]
 225         },
 226         {
 227             code: "import * as mod1 from 'mod'; mod1.named = 0",
 228             errors: [{ messageId: "readonlyMember", data: { name: "mod1" }, column: 30 }]
 229         },
 230         {
 231             code: "import * as mod2 from 'mod'; mod2.named += 0",
 232             errors: [{ messageId: "readonlyMember", data: { name: "mod2" }, column: 30 }]
 233         },
 234         {
 235             code: "import * as mod3 from 'mod'; mod3.named++",
 236             errors: [{ messageId: "readonlyMember", data: { name: "mod3" }, column: 30 }]
 237         },
 238         {
 239             code: "import * as mod4 from 'mod'; for (mod4.named in foo);",
 240             errors: [{ messageId: "readonlyMember", data: { name: "mod4" }, column: 30 }]
 241         },
 242         {
 243             code: "import * as mod5 from 'mod'; for (mod5.named of foo);",
 244             errors: [{ messageId: "readonlyMember", data: { name: "mod5" }, column: 30 }]
 245         },
 246         {
 247             code: "import * as mod6 from 'mod'; [mod6.named] = foo",
 248             errors: [{ messageId: "readonlyMember", data: { name: "mod6" }, column: 30 }]
 249         },
 250         {
 251             code: "import * as mod7 from 'mod'; [mod7.named = 0] = foo",
 252             errors: [{ messageId: "readonlyMember", data: { name: "mod7" }, column: 30 }]
 253         },
 254         {
 255             code: "import * as mod8 from 'mod'; [...mod8.named] = foo",
 256             errors: [{ messageId: "readonlyMember", data: { name: "mod8" }, column: 30 }]
 257         },
 258         {
 259             code: "import * as mod9 from 'mod'; ({ bar: mod9.named } = foo)",
 260             errors: [{ messageId: "readonlyMember", data: { name: "mod9" }, column: 31 }]
 261         },
 262         {
 263             code: "import * as mod10 from 'mod'; ({ bar: mod10.named = 0 } = foo)",
 264             errors: [{ messageId: "readonlyMember", data: { name: "mod10" }, column: 32 }]
 265         },
 266         {
 267             code: "import * as mod11 from 'mod'; ({ ...mod11.named } = foo)",
 268             errors: [{ messageId: "readonlyMember", data: { name: "mod11" }, column: 32 }]
 269         },
 270         {
 271             code: "import * as mod12 from 'mod'; delete mod12.named",
 272             errors: [{ messageId: "readonlyMember", data: { name: "mod12" }, column: 31 }]
 273         },
 274         {
 275             code: "import * as mod from 'mod'; Object.assign(mod, obj)",
 276             errors: [{ messageId: "readonlyMember", data: { name: "mod" }, column: 29 }]
 277         },
 278         {
 279             code: "import * as mod from 'mod'; Object.defineProperty(mod, key, d)",
 280             errors: [{ messageId: "readonlyMember", data: { name: "mod" }, column: 29 }]
 281         },
 282         {
 283             code: "import * as mod from 'mod'; Object.defineProperties(mod, d)",
 284             errors: [{ messageId: "readonlyMember", data: { name: "mod" }, column: 29 }]
 285         },
 286         {
 287             code: "import * as mod from 'mod'; Object.setPrototypeOf(mod, proto)",
 288             errors: [{ messageId: "readonlyMember", data: { name: "mod" }, column: 29 }]
 289         },
 290         {
 291             code: "import * as mod from 'mod'; Object.freeze(mod)",
 292             errors: [{ messageId: "readonlyMember", data: { name: "mod" }, column: 29 }]
 293         },
 294         {
 295             code: "import * as mod from 'mod'; Reflect.defineProperty(mod, key, d)",
 296             errors: [{ messageId: "readonlyMember", data: { name: "mod" }, column: 29 }]
 297         },
 298         {
 299             code: "import * as mod from 'mod'; Reflect.deleteProperty(mod, key)",
 300             errors: [{ messageId: "readonlyMember", data: { name: "mod" }, column: 29 }]
 301         },
 302         {
 303             code: "import * as mod from 'mod'; Reflect.set(mod, key, value)",
 304             errors: [{ messageId: "readonlyMember", data: { name: "mod" }, column: 29 }]
 305         },
 306         {
 307             code: "import * as mod from 'mod'; Reflect.setPrototypeOf(mod, proto)",
 308             errors: [{ messageId: "readonlyMember", data: { name: "mod" }, column: 29 }]
 309         },
 310         {
 311             code: "import mod, * as mod_ns from 'mod'; mod.prop = 0; mod_ns.prop = 0",
 312             errors: [{ messageId: "readonlyMember", data: { name: "mod_ns" }, column: 51 }]
 313         }
 314     ]
 315 });