add tests to lint deprecations

Author: mansona

.eslintrc.js

@@ -54,5 +54,19 @@ module.exports = {
       files: ['tests/**/*-test.{js,ts}'],
       extends: ['plugin:qunit/recommended'],
     },
+    {
+      // mocha tests
+      files: ['node-tests/**/*.mjs'],
+      env: {
+        browser: false,
+        node: true,
+        mocha: true,
+      },
+      plugins: ['node'],
+      extends: ['plugin:node/recommended'],
+      rules: {
+        'node/no-unpublished-import': 'off',
+      },
+    },
   ],
 };

node-tests/index.mjs

@@ -0,0 +1,29 @@
+import { readFileSync } from 'fs';
+import walkSync from 'walk-sync';
+import { join, basename } from 'path';
+import yamlFront from 'yaml-front-matter';
+
+const markdownFilenames = walkSync('content', { globs: ['**/*.md'] });
+
+console.log(markdownFilenames);
+
+describe('Json Tests', function () {
+  markdownFilenames.forEach((file) => {
+    it(`${file} is ok`, function () {
+      let contents = readFileSync(join('content', file), 'utf8');
+      contents = yamlFront.loadFront(contents);
+
+      if (contents.id) {
+        throw new Error(
+          `You can't define an ID for a deprecation. If you need an ID that is different from the file name then use displayId`
+        );
+      }
+
+      if (contents.displayId && contents.displayId === basename(file, '.md')) {
+        throw new Error(
+          `You don't need to define a displayId if it's the same as the file name`
+        );
+      }
+    });
+  });
+});