(wip) feat: fuzzy search

Author: aymericbouzy

package.json

@@ -34,6 +34,7 @@
   "dependencies": {
     "ansi-escapes": "^4.3.1",
     "chalk": "^4.0.0",
+    "fuzzysearch": "^1.0.3",
     "jest-regex-util": "^27.0.0",
     "jest-watcher": "^27.0.0",
     "slash": "^4.0.0",

src/file_name_plugin/__tests__/__snapshots__/plugin.test.ts.snap

@@ -1,5 +1,51 @@
 // Jest Snapshot v1, https://goo.gl/fbAQLP
 
+exports[`can fuzzy search 1`] = `
+
+[MOCK - cursorLeft]
+
+ pattern › f
+[MOCK - cursorSavePosition]
+[MOCK - cursorLeft]
+
+
+ Pattern matches 3 files
+
+ › src/foo.js
+
+ › src/file-1.js
+
+ › src/file-2.js
+[MOCK - cursorTo(12, 5)]
+[MOCK - cursorRestorePosition]
+
+[MOCK - cursorLeft]
+
+ pattern › f1
+[MOCK - cursorSavePosition]
+[MOCK - cursorLeft]
+
+
+ Pattern matches 1 file
+
+ › src/file-1.js
+[MOCK - cursorTo(13, 5)]
+[MOCK - cursorRestorePosition]
+
+[MOCK - cursorLeft]
+
+ pattern › f1
+[MOCK - cursorSavePosition]
+[MOCK - cursorLeft]
+
+
+ Pattern matches 1 file
+
+ › src/file-1.js
+[MOCK - cursorTo(13, 5)]
+[MOCK - cursorRestorePosition]
+`;
+
 exports[`can select a pattern that matches multiple files 1`] = `
 
 [MOCK - cursorLeft]

src/file_name_plugin/__tests__/plugin.test.ts

@@ -119,7 +119,7 @@ it('can select a pattern that matches multiple files', async () => {
 
   expect(updateConfigAndRun).toHaveBeenCalledWith({
     mode: 'watch',
-    testPathPattern: 'fi',
+    testPathPattern: 'f.*i',
   });
 });
 
@@ -179,3 +179,21 @@ it("selected file doesn't include trimming dots", async () => {
     testPathPattern: 'ong_name_gonna_need_trimming\\.js',
   });
 });
+
+it('can fuzzy search', async () => {
+  const { stdout, hookEmitter, updateConfigAndRun, plugin, type } =
+    pluginTester(FileNamePlugin);
+
+  hookEmitter.onFileChange({ projects });
+  const runPromise = plugin.run({}, updateConfigAndRun);
+  stdout.write.mockReset();
+  type('f', '1', KEYS.ARROW_DOWN, KEYS.ENTER);
+  expect(stdout.write.mock.calls.join('\n')).toMatchSnapshot();
+
+  await runPromise;
+
+  expect(updateConfigAndRun).toHaveBeenCalledWith({
+    mode: 'watch',
+    testPathPattern: 'src/file-1\\.js',
+  });
+});

src/file_name_plugin/prompt.ts

@@ -8,6 +8,7 @@ import {
   printRestoredPatternCaret,
 } from 'jest-watcher';
 import { escapeStrForRegex } from 'jest-regex-util';
+import fuzzysearch from 'fuzzysearch';
 import type { Config } from '@jest/types';
 import {
   highlight,
@@ -91,14 +92,6 @@ export default class FileNamePatternPrompt extends PatternPrompt {
     path: string;
     context: { config: Config.ProjectConfig };
   }> {
-    let regex: RegExp;
-
-    try {
-      regex = new RegExp(pattern, 'i');
-    } catch (e) {
-      return [];
-    }
-
     return this._searchSources.reduce<
       Array<{
         path: string;
@@ -107,7 +100,9 @@ export default class FileNamePatternPrompt extends PatternPrompt {
     >((tests, { testPaths, config }) => {
       return tests.concat(
         testPaths
-          .filter((testPath) => regex.test(testPath))
+          .filter((testPath) =>
+            fuzzysearch(pattern.toLowerCase(), testPath.toLowerCase()),
+          )
           .map((path) => ({
             path,
             context: { config },
@@ -130,7 +125,7 @@ export default class FileNamePatternPrompt extends PatternPrompt {
     super.run(
       (value) => {
         onSuccess(
-          removeTrimmingDots(value).split('/').map(escapeStrForRegex).join('/'),
+          removeTrimmingDots(value).split('').map(escapeStrForRegex).join('.*'),
         );
       },
       onCancel,

src/fuzzysearch.d.ts

@@ -0,0 +1,6 @@
+/** Declaration file generated by dts-gen */
+declare module 'fuzzysearch' {
+  function fuzzysearch(needle: string, haystack: string): boolean;
+
+  export = fuzzysearch;
+}

yarn.lock

@@ -3310,6 +3310,11 @@ functional-red-black-tree@^1.0.1:
   resolved "https://registry.yarnpkg.com/functional-red-black-tree/-/functional-red-black-tree-1.0.1.tgz#1b0ab3bd553b2a0d6399d29c0e3ea0b252078327"
   integrity sha1-GwqzvVU7Kg1jmdKcDj6gslIHgyc=
 
+fuzzysearch@^1.0.3:
+  version "1.0.3"
+  resolved "https://registry.yarnpkg.com/fuzzysearch/-/fuzzysearch-1.0.3.tgz#dffc80f6d6b04223f2226aa79dd194231096d008"
+  integrity sha1-3/yA9tawQiPyImqnndGUIxCW0Ag=
+
 gauge@^4.0.0:
   version "4.0.3"
   resolved "https://registry.yarnpkg.com/gauge/-/gauge-4.0.3.tgz#286cf105c1962c659f0963058fb05116c1b82d3f"
@@ -5164,76 +5169,76 @@ npm@^7.0.0:
   resolved "https://registry.yarnpkg.com/npm/-/npm-7.24.2.tgz#861117af8241bea592289f22407230e5300e59ca"
   integrity sha512-120p116CE8VMMZ+hk8IAb1inCPk4Dj3VZw29/n2g6UI77urJKVYb7FZUDW8hY+EBnfsjI/2yrobBgFyzo7YpVQ==
   dependencies:
-    "@isaacs/string-locale-compare" "*"
-    "@npmcli/arborist" "*"
-    "@npmcli/ci-detect" "*"
-    "@npmcli/config" "*"
-    "@npmcli/map-workspaces" "*"
-    "@npmcli/package-json" "*"
-    "@npmcli/run-script" "*"
-    abbrev "*"
-    ansicolors "*"
-    ansistyles "*"
-    archy "*"
-    cacache "*"
-    chalk "*"
-    chownr "*"
-    cli-columns "*"
-    cli-table3 "*"
-    columnify "*"
-    fastest-levenshtein "*"
-    glob "*"
-    graceful-fs "*"
-    hosted-git-info "*"
-    ini "*"
-    init-package-json "*"
-    is-cidr "*"
-    json-parse-even-better-errors "*"
-    libnpmaccess "*"
-    libnpmdiff "*"
-    libnpmexec "*"
-    libnpmfund "*"
-    libnpmhook "*"
-    libnpmorg "*"
-    libnpmpack "*"
-    libnpmpublish "*"
-    libnpmsearch "*"
-    libnpmteam "*"
-    libnpmversion "*"
-    make-fetch-happen "*"
-    minipass "*"
-    minipass-pipeline "*"
-    mkdirp "*"
-    mkdirp-infer-owner "*"
-    ms "*"
-    node-gyp "*"
-    nopt "*"
-    npm-audit-report "*"
-    npm-install-checks "*"
-    npm-package-arg "*"
-    npm-pick-manifest "*"
-    npm-profile "*"
-    npm-registry-fetch "*"
-    npm-user-validate "*"
-    npmlog "*"
-    opener "*"
-    pacote "*"
-    parse-conflict-json "*"
-    qrcode-terminal "*"
-    read "*"
-    read-package-json "*"
-    read-package-json-fast "*"
-    readdir-scoped-modules "*"
-    rimraf "*"
-    semver "*"
-    ssri "*"
-    tar "*"
-    text-table "*"
-    tiny-relative-date "*"
-    treeverse "*"
-    validate-npm-package-name "*"
-    which "*"
-    write-file-atomic "*"
+    "@isaacs/string-locale-compare" "^1.1.0"
+    "@npmcli/arborist" "^2.9.0"
+    "@npmcli/ci-detect" "^1.2.0"
+    "@npmcli/config" "^2.3.0"
+    "@npmcli/map-workspaces" "^1.0.4"
+    "@npmcli/package-json" "^1.0.1"
+    "@npmcli/run-script" "^1.8.6"
+    abbrev "~1.1.1"
+    ansicolors "~0.3.2"
+    ansistyles "~0.1.3"
+    archy "~1.0.0"
+    cacache "^15.3.0"
+    chalk "^4.1.2"
+    chownr "^2.0.0"
+    cli-columns "^3.1.2"
+    cli-table3 "^0.6.0"
+    columnify "~1.5.4"
+    fastest-levenshtein "^1.0.12"
+    glob "^7.2.0"
+    graceful-fs "^4.2.8"
+    hosted-git-info "^4.0.2"
+    ini "^2.0.0"
+    init-package-json "^2.0.5"
+    is-cidr "^4.0.2"
+    json-parse-even-better-errors "^2.3.1"
+    libnpmaccess "^4.0.2"
+    libnpmdiff "^2.0.4"
+    libnpmexec "^2.0.1"
+    libnpmfund "^1.1.0"
+    libnpmhook "^6.0.2"
+    libnpmorg "^2.0.2"
+    libnpmpack "^2.0.1"
+    libnpmpublish "^4.0.1"
+    libnpmsearch "^3.1.1"
+    libnpmteam "^2.0.3"
+    libnpmversion "^1.2.1"
+    make-fetch-happen "^9.1.0"
+    minipass "^3.1.3"
+    minipass-pipeline "^1.2.4"
+    mkdirp "^1.0.4"
+    mkdirp-infer-owner "^2.0.0"
+    ms "^2.1.2"
+    node-gyp "^7.1.2"
+    nopt "^5.0.0"
+    npm-audit-report "^2.1.5"
+    npm-install-checks "^4.0.0"
+    npm-package-arg "^8.1.5"
+    npm-pick-manifest "^6.1.1"
+    npm-profile "^5.0.3"
+    npm-registry-fetch "^11.0.0"
+    npm-user-validate "^1.0.1"
+    npmlog "^5.0.1"
+    opener "^1.5.2"
+    pacote "^11.3.5"
+    parse-conflict-json "^1.1.1"
+    qrcode-terminal "^0.12.0"
+    read "~1.0.7"
+    read-package-json "^4.1.1"
+    read-package-json-fast "^2.0.3"
+    readdir-scoped-modules "^1.1.0"
+    rimraf "^3.0.2"
+    semver "^7.3.5"
+    ssri "^8.0.1"
+    tar "^6.1.11"
+    text-table "~0.2.0"
+    tiny-relative-date "^1.3.0"
+    treeverse "^1.0.4"
+    validate-npm-package-name "~3.0.0"
+    which "^2.0.2"
+    write-file-atomic "^3.0.3"
 
 npmlog@*, npmlog@^6.0.0, npmlog@^6.0.1:
   version "6.0.1"