Reconfigure jest to be much faster

Author: StefanH-AT

jest.config.ts

@@ -2,12 +2,18 @@ export default {
     "transform": {
         ".ts": "ts-jest"
     },
+    "testEnvironment": "node",
     "testRegex": "(/tests?/.*|\\.(test|spec))\\.(ts|js)$",
     "moduleFileExtensions": [
         "ts",
         "js"
     ],
     "modulePathIgnorePatterns": [
         "out"
-    ]
-}
+    ],
+    "globals": {
+        "ts-jest": {
+            "isolatedModules": true
+        }
+    }
+};

package.json

@@ -37,7 +37,6 @@
         "vscode:prepublish": "npm run compile",
         "compile": "tsc -p ./src",
         "watch": "tsc -watch -p ./src",
-        "pretest": "npm run compile",
         "test": "jest --projects jest.config.ts",
         "lint": "eslint ./src",
         "deploy": "vsce publish"