fix(ci): fix test changed since

.github/workflows/test-pulls.yml

@@ -12,9 +12,10 @@ jobs:
         with:
           node-version: '12.x'
       - uses: actions/checkout@v2
-        with:
-          # needed for yarn version check, checks out entire repo
-          fetch-depth: 0
+        with: |
+          git fetch --no-tags origin ${{ github.base_ref }}
+          git checkout -b ${{ github.base_ref }}
+          git checkout ${{ github.head_ref }}
       - name: Check yarn cache integrity
         run: yarn install --immutable --immutable-cache
       - name: Build packages
@@ -22,7 +23,7 @@ jobs:
 
       # Make tests fail faster
       - name: Test changes since develop
-        run: yarn test:since-develop
+        run: yarn test --ignore='@lowdefy/format' -- --changedSince=${{ github.base_ref }}
       # format tests don't pass on node 12 since icu is missing and tests don't work with locales
       - name: Test packages
         run: yarn test --ignore='@lowdefy/format'

package.json

@@ -31,7 +31,6 @@
     "prepare": "lerna run prepare",
     "prettier": "prettier --config .prettierrc --write **/*.js",
     "test": "lerna run test",
-    "test:since-develop": "lerna run test --ignore='@lowdefy/format' -- --changedSince=develop",
     "test:ci": "yarn install --immutable --immutable-cache --check-cache && yarn build && yarn test --ignore='@lowdefy/format'"
   },
   "devDependencies": {