chore: setup circleci

Author: thymikee

.circleci/config.yml

@@ -0,0 +1,56 @@
+version: 2
+
+defaults: &defaults
+  docker:
+    - image: circleci/node:10
+  working_directory: ~/react-native-testing-library
+
+jobs:
+  install-dependencies:
+    <<: *defaults
+    steps:
+      - checkout
+      - attach_workspace:
+          at: ~/react-native-testing-library
+      - restore_cache:
+          keys:
+            - dependencies-{{ checksum "package.json" }}
+            - dependencies-
+      - run: yarn install --frozen-lockfile
+      - save_cache:
+          key: dependencies-{{ checksum "package.json" }}
+          paths:
+            - node_modules
+      - persist_to_workspace:
+          root: .
+          paths:
+            - .
+  lint-and-flow:
+    <<: *defaults
+    steps:
+      - attach_workspace:
+          at: ~/react-native-testing-library
+      - run: |
+          yarn lint
+          yarn flow-check
+  tests:
+    <<: *defaults
+    steps:
+      - attach_workspace:
+          at: ~/react-native-testing-library
+      - run: yarn test
+      - store_artifacts:
+          path: coverage
+          destination: coverage
+
+workflows:
+  version: 2
+  build-and-test:
+    jobs:
+      - install-dependencies
+      - lint-and-flow:
+          requires:
+            - install-dependencies
+      - tests:
+          requires:
+            - install-dependencies

.flowconfig

@@ -1,2 +1,5 @@
 [libs]
 flow-typed
+
+[options]
+include_warnings=true

.gitignore

@@ -1,2 +1,3 @@
 node_modules
 *.log
+.eslintcache

package.json

@@ -28,5 +28,10 @@
   },
   "dependencies": {
     "react-is": "^16.5.2"
+  },
+  "scripts": {
+    "test": "jest",
+    "flow-check": "flow check",
+    "lint": "eslint src --cache"
   }
 }