👷 Improve CI for faster build

.circleci/config.yml

@@ -63,28 +63,20 @@ jobs:
           name: Test
           command: npx -p web-component-tester -- npm run test:ci
 
-  test_ie_11:
+  # According to the resources below, Edge 15 is the oldest supported MS Edge.
+  # https://en.wikipedia.org/wiki/Microsoft_Edge
+  # https://reports.adduplex.com/#/r/2019-04
+  # https://en.wikipedia.org/wiki/Windows_10_version_history
+  test_edge_ie:
     <<: *defaults
     steps:
       - attach_workspace:
           at: ~/really-code-configurator
       - run:
-          name: Test (Internet Explorer 11)
+          name: Test (Edge 17, 15, Internet Explorer 11)
           command: |
             if [ -z "${CIRCLE_PULL_REQUEST}" ] && [ -z "$(git describe --exact-match HEAD)" ] && [ -z "$(git log --format=%B -n 1 | grep -iE '^[0-9]+[.]{1,}[0-9]+[.]{1,}[0-9]+$')" ]; then
-              npx -p web-component-tester -- npm run test:sl -- -s 'windows 7/internet explorer@11';
-            fi
-
-  test_edge:
-    <<: *defaults
-    steps:
-      - attach_workspace:
-          at: ~/really-code-configurator
-      - run:
-          name: Test (Edge 17, 13)
-          command: |
-            if [ -z "${CIRCLE_PULL_REQUEST}" ] && [ -z "$(git describe --exact-match HEAD)" ] && [ -z "$(git log --format=%B -n 1 | grep -iE '^[0-9]+[.]{1,}[0-9]+[.]{1,}[0-9]+$')" ]; then
-              npx -p web-component-tester -- npm run test:sl -- -s 'windows 10/microsoftedge@17' -s 'windows 10/microsoftedge@13';
+              npx -p web-component-tester -- npm run test:sl -- -s 'windows 10/microsoftedge@17' -s 'windows 10/microsoftedge@15' -s 'windows 10/internet explorer@11';
             fi
 
   test_safari:
@@ -99,28 +91,16 @@ jobs:
               npx -p web-component-tester -- npm run test:sl -- -s 'macos 10.12/safari@10.1' -s 'os x 10.11/safari@9';
             fi
 
-  test_chrome:
-    <<: *defaults
-    steps:
-      - attach_workspace:
-          at: ~/really-code-configurator
-      - run:
-          name: Test (Chrome 69, 41)
-          command: |
-            if [ -z "${CIRCLE_PULL_REQUEST}" ] && [ -z "$(git describe --exact-match HEAD)" ] && [ -z "$(git log --format=%B -n 1 | grep -iE '^[0-9]+[.]{1,}[0-9]+[.]{1,}[0-9]+$')" ]; then
-              npx -p web-component-tester -- npm run test:sl -- -s 'windows 10/chrome@69' -s 'Linux/chrome@41';
-            fi
-
-  test_firefox:
+  test_old_firefox_chrome:
     <<: *defaults
     steps:
       - attach_workspace:
           at: ~/really-code-configurator
       - run:
-          name: Test (Firefox 63, 62)
+          name: Test (Firefox 62, Chrome 69)
           command: |
             if [ -z "${CIRCLE_PULL_REQUEST}" ] && [ -z "$(git describe --exact-match HEAD)" ] && [ -z "$(git log --format=%B -n 1 | grep -iE '^[0-9]+[.]{1,}[0-9]+[.]{1,}[0-9]+$')" ]; then
-              npx -p web-component-tester -- npm run test:sl -- -s 'windows 10/firefox@63' -s 'macos 10.14/firefox@62';
+              npx -p web-component-tester -- npm run test:sl -- -s 'macos 10.14/firefox@62' -s 'windows 10/chrome@69';
             fi
 
 workflows:
@@ -132,22 +112,14 @@ workflows:
           requires:
             - build
 
-      - test_ie_11:
-          requires:
-            - build
-
-      - test_edge:
+      - test_edge_ie:
           requires:
             - build
 
       - test_safari:
           requires:
             - build
 
-      - test_chrome:
-          requires:
-            - build
-
-      - test_firefox:
+      - test_old_firefox_chrome:
           requires:
             - build