feat: upgrade plugin to v2.7.0

- Fixes #157
- Fixes #159

package.json

@@ -55,7 +55,7 @@
     "TypeScript"
   ],
   "dependencies": {
-    "@typescript-eslint/parser": "^2.3.3",
+    "@typescript-eslint/parser": "^2.7.0",
     "eslint-config-standard": "^14.1.0"
   },
   "peerDependencies": {
@@ -64,14 +64,14 @@
     "eslint-plugin-node": ">=9.1.0",
     "eslint-plugin-promise": ">=4.2.1",
     "eslint-plugin-standard": ">=4.0.0",
-    "@typescript-eslint/eslint-plugin": ">=2.3.3"
+    "@typescript-eslint/eslint-plugin": ">=2.7.0"
   },
   "devDependencies": {
     "@commitlint/cli": "^8.2.0",
     "@commitlint/config-conventional": "^8.2.0",
     "@commitlint/travis-cli": "^8.2.0",
     "@types/node": "^12.12.11",
-    "@typescript-eslint/eslint-plugin": "^2.3.3",
+    "@typescript-eslint/eslint-plugin": "^2.7.0",
     "ava": "^2.4.0",
     "editorconfig-checker": "^3.0.3",
     "eslint": "^6.6.0",

src/index.test.ts

@@ -35,6 +35,7 @@ test('export', (t): void => {
           'no-undef': 'off',
           'no-unused-vars': 'off',
           'no-use-before-define': 'off',
+          'no-unused-expressions': 'off',
           'no-useless-constructor': 'off',
           quotes: 'off',
           '@typescript-eslint/adjacent-overload-signatures': 'error',
@@ -91,6 +92,7 @@ test('export', (t): void => {
           '@typescript-eslint/no-unnecessary-type-assertion': 'error',
           '@typescript-eslint/no-unused-vars': ['error', { vars: 'all', args: 'none', ignoreRestSiblings: true }],
           '@typescript-eslint/no-use-before-define': ['error', { functions: false, classes: false, variables: false, typedefs: false }],
+          '@typescript-eslint/no-unused-expressions': ['error', { allowShortCircuit: true, allowTaggedTemplates: true, allowTernary: true }],
           '@typescript-eslint/no-useless-constructor': 'error',
           '@typescript-eslint/no-var-requires': 'error',
           '@typescript-eslint/prefer-function-type': 'error',

src/index.ts

@@ -6,6 +6,7 @@ const equivalents = [
   'indent',
   'no-array-constructor',
   'no-unused-vars',
+  'no-unused-expressions',
   'no-useless-constructor',
   'quotes'
 ] as const