[Tests] no-default-export, no-named-export: add test cases with non-module sourceType

Author: ljharb

tests/src/rules/no-default-export.js

@@ -7,6 +7,12 @@ const rule = require('rules/no-default-export');
 
 ruleTester.run('no-default-export', rule, {
   valid: [
+    test({
+      code: 'module.exports = function foo() {}',
+      parserOptions: {
+        sourceType: 'script',
+      },
+    }),
     test({
       code: 'module.exports = function foo() {}',
     }),

tests/src/rules/no-named-export.js

@@ -6,6 +6,12 @@ const rule = require('rules/no-named-export');
 
 ruleTester.run('no-named-export', rule, {
   valid: [].concat(
+    test({
+      code: 'module.export.foo = function () {}',
+      parserOptions: {
+        sourceType: 'script',
+      },
+    }),
     test({
       code: 'module.export.foo = function () {}',
     }),