docs: ts jest config migration (#142)

Author: sebastianrothe

.github/workflows/ci.yml

@@ -2,7 +2,7 @@ name: CI
 on:
   push:
     branches:
-      - master
+      - main
   pull_request:
 jobs:
   Tests:

README.md

@@ -68,7 +68,7 @@ Add the following to your Jest config:
     "^.+\\.svelte$": "svelte-jester"
   },
   "moduleFileExtensions": ["js", "svelte"],
-  "extensionsToTreatAsEsm": ["svelte"]
+  "extensionsToTreatAsEsm": [".svelte"]
 }
 ```
 
@@ -136,7 +136,7 @@ export default config = {
 };
 ```
 
-   To learn what options you can pass to `sveltePreprocess`, please refer to the [documentation](https://github.com/sveltejs/svelte-preprocess/blob/master/docs/preprocessing.md#typescript).
+   To learn what options you can pass to `sveltePreprocess`, please refer to the [documentation](https://github.com/sveltejs/svelte-preprocess/blob/main/docs/preprocessing.md#typescript).
 
 1. In your Jest config, enable preprocessing for `svelte-jester`, and add `ts-jest` as a transform:
 
@@ -148,7 +148,14 @@ export default config = {
         "preprocess": true
       }
     ],
-    "^.+\\.ts$": "ts-jest"
+    "^.+\\.ts$": [
+      "ts-jest",
+      {
+        "useESM": true
+        // optional: seperate tsconfig for tests
+        //"tsconfig": "tsconfig.spec.json",
+      }
+    ],
   },
   "moduleFileExtensions": [
     "js",
@@ -159,12 +166,6 @@ export default config = {
     ".svelte",
     ".ts"
   ],
-  "globals": {
-    "ts-jest": {
-      "tsconfig": "tsconfig.spec.json",
-      "useESM": true
-    }
-  },
 ```
 
 However if you do not want to create a `svelte.config.js` at the root of your
@@ -179,7 +180,14 @@ path to the config file to the `preprocess` option thus:
         "preprocess": "/some/path/to/svelte.config.js"
       }
     ],
-    "^.+\\.ts$": "ts-jest"
+    "^.+\\.ts$": [
+      "ts-jest",
+      {
+        "useESM": true
+        // optional: seperate tsconfig for tests
+        //"tsconfig": "tsconfig.spec.json",
+      }
+    ],
   },
   "moduleFileExtensions": [
     "js",
@@ -190,12 +198,6 @@ path to the config file to the `preprocess` option thus:
     ".svelte",
     ".ts"
   ],
-  "globals": {
-    "ts-jest": {
-      "tsconfig": "tsconfig.spec.json",
-      "useESM": true
-    }
-  },
 ```
 
 #### CJS version
@@ -212,7 +214,7 @@ path to the config file to the `preprocess` option thus:
    };
    ```
 
-   To learn what options you can pass to `sveltePreprocess`, please refer to the [documentation](https://github.com/sveltejs/svelte-preprocess/blob/master/docs/preprocessing.md#typescript).
+   To learn what options you can pass to `sveltePreprocess`, please refer to the [documentation](https://github.com/sveltejs/svelte-preprocess/blob/main/docs/preprocessing.md#typescript).
 
 1. In your Jest config, enable preprocessing for `svelte-jester`, and add `ts-jest` as a transform:
 
@@ -343,6 +345,6 @@ Thanks to all contributors, inspired by:
 <!-- prettier-ignore-start -->
 [package]: https://www.npmjs.com/package/svelte-jester
 [version-badge]: https://img.shields.io/npm/v/svelte-jester
-[license]: https://github.com/svelteness/svelte-jester/blob/master/LICENSE
+[license]: https://github.com/svelteness/svelte-jester/blob/main/LICENSE
 [license-badge]: https://img.shields.io/github/license/svelteness/svelte-jester?color=b
 <!-- prettier-ignore-end -->