🤖 config(babel): Setup cover environment.

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Author: a-flying-potato

package.json

@@ -128,7 +128,30 @@
           ]
         ]
       },
-      "cover": {},
+      "cover": {
+        "sourceMaps": "both",
+        "presets": [
+          [
+            "@babel/preset-env",
+            {
+              "targets": "current node"
+            }
+          ],
+          "babel-preset-power-assert"
+        ],
+        "plugins": [
+          [
+            "transform-remove-console",
+            {
+              "exclude": [
+                "log",
+                "error",
+                "warn"
+              ]
+            }
+          ]
+        ]
+      },
       "development": {
         "sourceMaps": "inline",
         "presets": [