try moduleNameMapper for jest

package.json

@@ -29,6 +29,15 @@
       "node_modules",
       "build/node_modules"
     ],
+    "moduleNameMapper": {
+      "mol-task(.*)": "<rootDir>/src/mol-task$1",
+      "mol-comp(.*)": "<rootDir>/src/mol-comp$1",
+      "mol-util(.*)": "<rootDir>/src/mol-util$1",
+      "mol-data(.*)": "<rootDir>/src/mol-data$1",
+      "mol-math(.*)": "<rootDir>/src/mol-math$1",
+      "mol-io(.*)": "<rootDir>/src/mol-io$1",
+      "mol-model(.*)": "<rootDir>/src/mol-model$1"
+    },
     "testRegex": "\\.spec\\.ts$"
   },
   "author": "",