diff --git a/packages/core/package.json b/packages/core/package.json
index e7b3122e8e9..6fdfc0b77f2 100644
--- a/packages/core/package.json
+++ b/packages/core/package.json
@@ -27,12 +27,13 @@
     "clean": "rimraf dist",
     "nodebuild": "BABEL_ENV=production rollup -c -o dist/index.js -f cjs",
     "modulebuild": "BABEL_ENV=production rollup -c -o dist/index.mjs -f es",
-    "build": "npm run clean && npm run nodebuild && npm run modulebuild",
-    "test": "BABEL_ENV=production nyc mocha tests/*.test.js",
+    "build": "npm run clean && rollup -c && rollup -c rollup.tests.js",
+    "testonly": "BABEL_ENV=production mocha tests/*.test.js",
+    "test": "BABEL_ENV=production nyc -x node_modules -x tests/fixtures -x bin-pack mocha tests/*.test.js",
     "pubtest": "npm publish --registry http://localhost:6662",
     "pubforce": "npm publish",
     "symlink": "mkdir -p ./node_modules/@freesewing && cd ./node_modules/@freesewing && ln -s -f ../../../* . && cd -",
-    "report": "BABEL_ENV=production nyc report --reporter=html mocha --compilers js:babel-core/register tests/*.test.js",
+    "report": "BABEL_ENV=production nyc report --reporter=html",
     "coverage": "BABEL_ENV=production nyc npm test && nyc report --reporter=text-lcov > coverage.lcov && ./node_modules/.bin/codecov",
     "watch": "BABEL_ENV=production rollup -c -w -o dist/index.mjs -f es"
   },
diff --git a/packages/core/rollup.tests.js b/packages/core/rollup.tests.js
new file mode 100644
index 00000000000..8710c21856a
--- /dev/null
+++ b/packages/core/rollup.tests.js
@@ -0,0 +1,24 @@
+import babel from "rollup-plugin-babel";
+import resolve from "rollup-plugin-node-resolve";
+import commonjs from "rollup-plugin-commonjs";
+import json from "rollup-plugin-json";
+
+export default {
+  input: "src/index.js",
+  output: [
+    {
+      file: "tests/dist/index.js",
+      format: "cjs",
+      sourcemap: true
+    }
+  ],
+  plugins: [
+    resolve(),
+    json(),
+    commonjs(),
+    babel({
+      exclude: "node_modules/**",
+      plugins: ["@babel/plugin-proposal-object-rest-spread"]
+    })
+  ]
+};