fix(jest): make jest be able to transform yaml files

fixes #253
conveyal · Oct 11, 2018 · a240c03 · a240c03
1 parent 3cd4b7d
commit a240c03
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Showing 7 changed files with 41 additions and 6 deletions.
diff --git a/__tests__/lib/__snapshots__/jest.js.snap b/__tests__/lib/__snapshots__/jest.js.snap
@@ -14,6 +14,12 @@ Array [
       "another-folder",
     ],
     "coverageDirectory": "coverage",
+    "moduleFileExtensions": Array [
+      "js",
+      "jsx",
+      "json",
+      "yml",
+    ],
     "notify": true,
     "setupFiles": Array [
       "beforeTestsSetup.js",

diff --git a/__tests__/lib/jest.js b/__tests__/lib/jest.js
@@ -15,7 +15,7 @@ describe('jest.js', () => {
       updateSnapshots: true
     })
     cfg[JEST_CONFIG_INDEX] = JSON.parse(cfg[JEST_CONFIG_INDEX])
-    expect(cfg[JEST_CONFIG_INDEX].transform['.*']).toContain(
+    expect(cfg[JEST_CONFIG_INDEX].transform['^.+\\.jsx?$']).toContain(
       'lib/jest-preprocessor.js'
     )
     delete cfg[JEST_CONFIG_INDEX].transform

diff --git a/__tests__/test-utils/mocks/index-with-yaml.js b/__tests__/test-utils/mocks/index-with-yaml.js
@@ -1,8 +1,7 @@
 import React, {Component} from 'react'
 import uuid from 'uuid'
 
-const yaml = require('./mock.yaml')
-console.log(yaml)
+const yaml = require('./mock.yml')
 
 /**
  * A Mock Component to test to ensure that building of React jsx components works
@@ -16,8 +15,8 @@ export default class MockTestComponentUniqueName extends Component {
    * Render the component.
    */
   render () {
+    console.log(yaml)
+    console.log(uuid.v4())
     return <div />
   }
 }
-
-console.log(uuid.v4())
diff --git a/__tests__/test-utils/mocks/mock.yaml → __tests__/test-utils/mocks/mock.yml b/__tests__/test-utils/mocks/mock.yaml → __tests__/test-utils/mocks/mock.yml
diff --git a/lib/jest.js b/lib/jest.js
@@ -8,13 +8,22 @@ module.exports.generateTestConfig = (patterns, options) => {
     collectCoverage: options.coverage,
     collectCoverageFrom: ['lib/**/*.js'],
     coverageDirectory: 'coverage',
+    moduleFileExtensions: [
+      'js',
+      'jsx',
+      'json',
+      'yml'
+    ],
     notify: true,
     testPathIgnorePatterns: [
       '<rootDir>/node_modules/',
       '<rootDir>/__tests__/test-utils'
     ],
     testURL: 'http://localhost:9966',
-    transform: { '.*': path.resolve(__dirname, 'jest-preprocessor.js') }
+    transform: {
+      '\\.yml$': 'jest-yaml-transform',
+      '^.+\\.jsx?$': path.resolve(__dirname, 'jest-preprocessor.js')
+    }
   }
 
   if (options.coveragePaths) {

diff --git a/package.json b/package.json
@@ -90,6 +90,7 @@
     "glob": "^7.1.3",
     "isomorphic-fetch": "^2.2.1",
     "jest": "^23.5.0",
+    "jest-yaml-transform": "^0.2.0",
     "lodash.uniq": "^4.5.0",
     "middleware-proxy": "^2.0.2",
     "mime": "^2.3.1",

diff --git a/yarn.lock b/yarn.lock
@@ -4095,6 +4095,13 @@ flat-cache@^1.2.1:
     graceful-fs "^4.1.2"
     write "^0.2.1"
 
+flat@^4.0.0:
+  version "4.1.0"
+  resolved "https://registry.yarnpkg.com/flat/-/flat-4.1.0.tgz#090bec8b05e39cba309747f1d588f04dbaf98db2"
+  integrity sha512-Px/TiLIznH7gEDlPXcUD4KnBusa6kR6ayRUVcnEAbreRIuhkqow/mun59BuRXwoYk7ZQOLW1ZM05ilIvK38hFw==
+  dependencies:
+    is-buffer "~2.0.3"
+
 flatten@^1.0.2:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/flatten/-/flatten-1.0.2.tgz#dae46a9d78fbe25292258cc1e780a41d95c03782"
@@ -5099,6 +5106,11 @@ is-buffer@^1.1.0, is-buffer@^1.1.5, is-buffer@~1.1.1:
   resolved "https://registry.yarnpkg.com/is-buffer/-/is-buffer-1.1.6.tgz#efaa2ea9daa0d7ab2ea13a97b2b8ad51fefbe8be"
   integrity sha512-NcdALwpXkTm5Zvvbk7owOUSvVvBKDgKP5/ewfXEznmQFfs4ZRmanOeKBTjRVjka3QFoN6XJ+9F3USqfHqTaU5w==
 
+is-buffer@~2.0.3:
+  version "2.0.3"
+  resolved "https://registry.yarnpkg.com/is-buffer/-/is-buffer-2.0.3.tgz#4ecf3fcf749cbd1e472689e109ac66261a25e725"
+  integrity sha512-U15Q7MXTuZlrbymiz95PJpZxu8IlipAp4dtS3wOdgPXx3mqBnslrWU14kxfHB+Py/+2PVKSr37dMAgM2A4uArw==
+
 is-builtin-module@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/is-builtin-module/-/is-builtin-module-1.0.0.tgz#540572d34f7ac3119f8f76c30cbc1b1e037affbe"
@@ -5859,6 +5871,14 @@ jest-worker@^23.2.0:
   dependencies:
     merge-stream "^1.0.1"
 
+jest-yaml-transform@^0.2.0:
+  version "0.2.0"
+  resolved "https://registry.yarnpkg.com/jest-yaml-transform/-/jest-yaml-transform-0.2.0.tgz#7e14ed59e563283b73be7e8f387f352e669147a4"
+  integrity sha512-Pu1KyURgi0Qfi0QrUr2xwV7SlYRxasLS+bPZfLxFks93LCIYFHdGnQ7pNxvqOrZdyBNXthCUT98JBjo4UCWflQ==
+  dependencies:
+    flat "^4.0.0"
+    js-yaml "^3.9.1"
+
 jest@^23.5.0:
   version "23.5.0"
   resolved "https://registry.yarnpkg.com/jest/-/jest-23.5.0.tgz#80de353d156ea5ea4a7332f7962ac79135fbc62e"