Chore: Add CI tests for ESLint 7 (#291)

Author: MichaelDeBoey

.travis.yml

@@ -1,17 +1,25 @@
 language: node_js
 cache: yarn
 node_js:
-  - "10"
-  - "8"
-  - "6"
+  - 14
+  - 12
+  - 10
+  - 8
+  - 6
 env:
   - ESLINT_VERSION=current
+  - ESLINT_VERSION=^6
   - ESLINT_VERSION=^5
 matrix:
   exclude:
+    # eslint 7 only supports node ^10.12 || >=12
+    - node_js: 8
+      env: ESLINT_VERSION=current
     # eslint 6 only supports node >=8.10
-    - node_js: "6"
+    - node_js: 6
       env: ESLINT_VERSION=current
+    - node_js: 6
+      env: ESLINT_VERSION=^6
 install:
   - if [[ $ESLINT_VERSION != "current" ]]; then
     yarn upgrade "eslint@$ESLINT_VERSION";

package.json

@@ -31,12 +31,12 @@
     "prettier-linter-helpers": "^1.0.0"
   },
   "peerDependencies": {
-    "eslint": ">= 5.0.0",
-    "prettier": ">= 1.13.0"
+    "eslint": ">=5.0.0",
+    "prettier": ">=1.13.0"
   },
   "devDependencies": {
     "@not-an-aardvark/node-release-script": "^0.1.0",
-    "eslint": "^6.0.0",
+    "eslint": "^7.0.0",
     "eslint-config-not-an-aardvark": "^2.1.0",
     "eslint-config-prettier": "^6.0.0",
     "eslint-plugin-eslint-plugin": "^2.0.0",