Chore: add more tests

tests/lib/linter/linter.js

@@ -2959,15 +2959,20 @@ var a = "test2";
 
         // https://github.com/eslint/eslint/issues/14652
         it("should not report a violation", () => {
-            const code = "/*eslint-env es6\n */ new Promise();";
-
+            const codes = [
+                "/*eslint-env es6\n */ new Promise();",
+                "/*eslint-env browser,\nes6 */ window;Promise;",
+                "/*eslint-env\nbrowser,es6 */ window;Promise;"
+            ];
             const config = { rules: { "no-undef": 1 } };
 
-            const messages = linter.verify(code, config, filename);
+            for (const code of codes) {
+                const messages = linter.verify(code, config, filename);
 
-            assert.strictEqual(messages.length, 0);
-        });
+                assert.strictEqual(messages.length, 0);
+            }
 
+        });
 
         it("should not report a violation", () => {
             const code = `/*${ESLINT_ENV} mocha,node */ require();describe();`;