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| 1 | +// @ts-check |
| 2 | + |
| 3 | +import test from "ava"; |
| 4 | +import path from "node:path"; |
| 5 | +import { __dirname as getDirname } from "./esm-helpers.mjs"; |
| 6 | +import { resolveModule, resolveModuleCustomResolve } from "../lib/resolve-module.cjs"; |
| 7 | + |
| 8 | +import { createRequire } from "node:module"; |
| 9 | +const require = createRequire(import.meta.url); |
| 10 | +// eslint-disable-next-line no-underscore-dangle |
| 11 | +const __dirname = getDirname(import.meta); |
| 12 | + |
| 13 | +test("built-in module", (t) => { |
| 14 | + t.plan(1); |
| 15 | + t.deepEqual( |
| 16 | + resolveModule("node:fs"), |
| 17 | + require.resolve("node:fs") |
| 18 | + ); |
| 19 | +}); |
| 20 | + |
| 21 | +test("locally-installed module", (t) => { |
| 22 | + t.plan(1); |
| 23 | + t.deepEqual( |
| 24 | + resolveModule("micromark"), |
| 25 | + require.resolve("micromark") |
| 26 | + ); |
| 27 | +}); |
| 28 | + |
| 29 | +test("absolute path to module", (t) => { |
| 30 | + t.plan(1); |
| 31 | + const absolute = |
| 32 | + path.resolve( |
| 33 | + __dirname, |
| 34 | + "./rules/node_modules/markdownlint-rule-sample-commonjs" |
| 35 | + ); |
| 36 | + t.deepEqual( |
| 37 | + resolveModule(absolute), |
| 38 | + require.resolve(absolute) |
| 39 | + ); |
| 40 | +}); |
| 41 | + |
| 42 | +test("relative (to __dirname) path to module", (t) => { |
| 43 | + t.plan(1); |
| 44 | + t.deepEqual( |
| 45 | + resolveModule( |
| 46 | + "./rules/node_modules/markdownlint-rule-sample-module", |
| 47 | + // __dirname is needed because require.resolve is relative to this |
| 48 | + // file while resolveModule is relative to resolve-module.cjs |
| 49 | + [ __dirname ] |
| 50 | + ), |
| 51 | + require.resolve( |
| 52 | + "./rules/node_modules/markdownlint-rule-sample-module" |
| 53 | + ) |
| 54 | + ); |
| 55 | +}); |
| 56 | + |
| 57 | +test("module in alternate node_modules", (t) => { |
| 58 | + t.plan(3); |
| 59 | + t.throws( |
| 60 | + () => require.resolve("markdownlint-rule-sample-commonjs"), |
| 61 | + { "code": "MODULE_NOT_FOUND" } |
| 62 | + ); |
| 63 | + t.throws( |
| 64 | + () => resolveModule("markdownlint-rule-sample-commonjs"), |
| 65 | + { "code": "MODULE_NOT_FOUND" } |
| 66 | + ); |
| 67 | + t.deepEqual( |
| 68 | + resolveModule( |
| 69 | + "markdownlint-rule-sample-commonjs", |
| 70 | + [ path.join(__dirname, "rules") ] |
| 71 | + ), |
| 72 | + require.resolve( |
| 73 | + "markdownlint-rule-sample-commonjs", |
| 74 | + { "paths": [ path.join(__dirname, "rules") ] } |
| 75 | + ) |
| 76 | + ); |
| 77 | +}); |
| 78 | + |
| 79 | +test("module local, relative, and in alternate node_modules (same paths)", (t) => { |
| 80 | + t.plan(3); |
| 81 | + const paths = [ |
| 82 | + __dirname, |
| 83 | + path.join(__dirname, "rules") |
| 84 | + ]; |
| 85 | + t.deepEqual( |
| 86 | + resolveModule( |
| 87 | + "micromark", |
| 88 | + paths |
| 89 | + ), |
| 90 | + require.resolve( |
| 91 | + "micromark", |
| 92 | + { paths } |
| 93 | + ) |
| 94 | + ); |
| 95 | + t.deepEqual( |
| 96 | + resolveModule( |
| 97 | + "./rules/node_modules/markdownlint-rule-sample-commonjs", |
| 98 | + paths |
| 99 | + ), |
| 100 | + require.resolve( |
| 101 | + "./rules/node_modules/markdownlint-rule-sample-commonjs", |
| 102 | + { paths } |
| 103 | + ) |
| 104 | + ); |
| 105 | + t.deepEqual( |
| 106 | + resolveModule( |
| 107 | + "markdownlint-rule-sample-commonjs", |
| 108 | + paths |
| 109 | + ), |
| 110 | + require.resolve( |
| 111 | + "markdownlint-rule-sample-commonjs", |
| 112 | + { paths } |
| 113 | + ) |
| 114 | + ); |
| 115 | +}); |
| 116 | + |
| 117 | +test("custom resolve implementation", (t) => { |
| 118 | + t.plan(1); |
| 119 | + const expected = |
| 120 | + require.resolve("./rules/node_modules/markdownlint-rule-sample-module"); |
| 121 | + const customResolve = (id, options) => require.resolve(id, options); |
| 122 | + customResolve.paths = (request) => require.resolve.paths(request); |
| 123 | + t.deepEqual( |
| 124 | + resolveModuleCustomResolve( |
| 125 | + customResolve, |
| 126 | + "./rules/node_modules/markdownlint-rule-sample-module", |
| 127 | + [ __dirname ] |
| 128 | + ), |
| 129 | + expected |
| 130 | + ); |
| 131 | +}); |
| 132 | + |
| 133 | +test("custom resolve implementation, missing paths", (t) => { |
| 134 | + t.plan(1); |
| 135 | + const expected = |
| 136 | + require.resolve("./rules/node_modules/markdownlint-rule-sample-commonjs"); |
| 137 | + const customResolve = (id, options) => require.resolve(id, options); |
| 138 | + t.deepEqual( |
| 139 | + resolveModuleCustomResolve( |
| 140 | + // @ts-ignore |
| 141 | + customResolve, |
| 142 | + "./rules/node_modules/markdownlint-rule-sample-commonjs", |
| 143 | + [ __dirname ] |
| 144 | + ), |
| 145 | + expected |
| 146 | + ); |
| 147 | +}); |
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