Path resolution issues with Jest@20

[kentcdodds]

Do you want to request a feature or report a bug?

bug

What is the current behavior?

I'm unsure what's happened, but maybe a diff will help reveal what's going on.

Here's how I had to change things when upgrading from a working Jest@19 setup to an almost working setup with Jest@20

diff --git a/tests/jest.config.client.json b/tests/jest.config.client.json
index 242ccad0ed..9abc83cdb3 100644
--- a/tests/jest.config.client.json
+++ b/tests/jest.config.client.json
@@ -1,13 +1,13 @@
 {
   "roots": [
-    "<rootDir>/public/js"
+    "../public/js"
   ],
   "setupFiles": [
-    "<rootDir>/tests/lib/setup-test-env-jest-client.js"
+    "./lib/setup-test-env-jest-client.js"
   ],
-  "setupTestFrameworkScriptFile": "<rootDir>/tests/lib/before-each-test-client.js",
+  "setupTestFrameworkScriptFile": "./lib/before-each-test-client.js",
   "transform": {
-    "^.+\\.js$": "<rootDir>/tests/lib/client-preprocessor.js"
+    "^.+\\.js$": "./lib/client-preprocessor.js"
   },
   "testURL": "http://example.com",
   "testPathIgnorePatterns": [
@@ -15,7 +15,7 @@
     "/__tests__/helpers/",
     "/__tests__/fixtures/"
   ],
-  "testEnvironment": "jest-environment-jsdom",
+  "testEnvironment": "jsdom",
   "moduleNameMapper": {
     "^.+\\.svg$": "<rootDir>/public/js/__mocks__/custom/file-mock.js"
   },

I think this is important to note: My config is located in <rootDir>/tests/jest.config.client.json and my root is in <rootDir>/public/js.

Really sorry I was unable to try the alpha out on my project :-(

With these changes, Jest starts running the tests, but it appears it's not transpiling things properly.

[kentcdodds]

This is probably related to #3541

[thymikee]

This should fix it: #3538 (except for testEnvironment issue)

[kentcdodds]

Thanks @thymikee! Does that also cover the transform, setupTestFrameworkScriptFile, roots, and setupFiles changes?

[thymikee]

Hm, not sure about that, we need to test nested configs more thoroughly after recent rewrite.
In one project with config being in different dir than root, I had to explicitly set "rootDir": "../path/to/root". So I'll keep this open.

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