ci: split tests as tasks instead of parallel runs

Author: pmmmwh

.circleci/config.yml

@@ -51,10 +51,15 @@ jobs:
           - '13.14'
           - '14.4'
         type: enum
+      webpack-version:
+        default: latest
+        enum:
+          - latest
+          - next
+        type: enum
       setup:
         default: []
         type: steps
-    parallelism: 2
     steps:
       - checkout
       - setup-headless-chromium
@@ -66,13 +71,15 @@ jobs:
       - run:
           name: Install Webpack-related dependencies
           command: |
-            if [[ $CIRCLE_NODE_INDEX == 0 ]]; then
-              echo "Using webpack@latest and webpack-cli@latest"
-              yarn add -D webpack@latest webpack-cli@latest
-            elif [[ $CIRCLE_NODE_INDEX == 1 ]]; then
-              echo "Using webpack@next and webpack-cli@beta"
-              yarn add -D webpack@next webpack-cli@beta
+            if [[ << parameters.webpack-version >> == "next" ]]; then
+              WEBPACK_CLI_VERSION = "beta"
+            else
+              WEBPACK_CLI_VERSION = "latest"
             fi
+
+            yarn add -D \
+              "webpack@<< parameters.webpack-version >>" \
+              "webpack-cli@$WEBPACK_CLI_VERSION"
       - run:
           name: Run Tests
           command: yarn test
@@ -83,14 +90,34 @@ workflows:
     jobs:
       - lint-and-format
       - test:
-          name: test/node:10
+          name: test/node:10/webpack:4
+          node-version: '10.21'
+          webpack-version: latest
+      - test:
+          name: test/node:12/webpack:4
+          node-version: '12.18'
+          webpack-version: latest
+      - test:
+          name: test/node:13/webpack:4
+          node-version: '13.14'
+          webpack-version: latest
+      - test:
+          name: test/node:14/webpack:4
+          node-version: '14.4'
+          webpack-version: latest
+      - test:
+          name: test/node:10/webpack:5
           node-version: '10.21'
+          webpack-version: next
       - test:
-          name: test/node:12
+          name: test/node:12/webpack:5
           node-version: '12.18'
+          webpack-version: next
       - test:
-          name: test/node:13
+          name: test/node:13/webpack:5
           node-version: '13.14'
+          webpack-version: next
       - test:
-          name: test/node:14
+          name: test/node:14/webpack:5
           node-version: '14.4'
+          webpack-version: next