adds necessary to shopify/jest/no-vague-terms

CHANGELOG.md

@@ -2,6 +2,10 @@
 
 <!-- ## Unreleased -->
 
+### Changed
+
+- added "necessary" to `shopify/jest/no-vague-titles` ([265](https://github.com/Shopify/eslint-plugin-shopify/pull/265))
+
 ### Added
 
 - New Rules:
@@ -10,6 +14,7 @@
   - `react/state-in-constructor` Enforce state initialization to be in a class property. ([256](https://github.com/Shopify/eslint-plugin-shopify/pull/246))
 
 ### Fixed
+
 - `react-prefer-private-members` from incorrectly reporting the members of a parent class if a React class is defined within its constructor. ([258](https://github.com/Shopify/eslint-plugin-shopify/pull/258))
 
 ## [28.0.0] - 2019-04-26

lib/rules/jest/no-vague-titles.js

@@ -13,6 +13,7 @@ const VAGUE_TERMS = {
   properly: /properly/i,
   every: /every/i,
   descriptive: /descriptive/i,
+  necessary: /necessary/i,
 };
 
 module.exports = {

tests/lib/rules/jest/no-vague-titles.js

@@ -142,7 +142,53 @@ ruleTester.run('no-vague-titles', rule, {
   ],
   invalid: [
     {
-      code: "it('properly should correcly appropriate all')",
+      code:
+        "it('properly should correcly appropriate all descriptive necessary')",
+      parser,
+      errors: [
+        {
+          messageId: 'containsVagueWord',
+        },
+      ],
+    },
+    {
+      code: "it('necessary')",
+      parser,
+      errors: [
+        {
+          messageId: 'containsVagueWord',
+        },
+      ],
+    },
+    {
+      code: "describe('necessary')",
+      parser,
+      errors: [
+        {
+          messageId: 'containsVagueWord',
+        },
+      ],
+    },
+    {
+      code: "test('necessary')",
+      parser,
+      errors: [
+        {
+          messageId: 'containsVagueWord',
+        },
+      ],
+    },
+    {
+      code: "fit('necessary')",
+      parser,
+      errors: [
+        {
+          messageId: 'containsVagueWord',
+        },
+      ],
+    },
+    {
+      code: "xdescribe('necessary')",
       parser,
       errors: [
         {
@@ -1454,3 +1500,27 @@ ruleTester.run('no-vague-titles with allow=descriptive', rule, {
     },
   ],
 });
+
+ruleTester.run('no-vague-titles with allow=necessary', rule, {
+  valid: [
+    {
+      code: "it('necessary')",
+      options: [{allow: ['necessary']}],
+    },
+    {
+      code: "it('necessary all should')",
+      options: [{allow: ['necessary', 'should', 'all']}],
+    },
+  ],
+  invalid: [
+    {
+      code: "it('properly all should')",
+      options: [{allow: ['necessary', 'should']}],
+      errors: [
+        {
+          messageId: 'containsVagueWord',
+        },
+      ],
+    },
+  ],
+});