Fix TS parsers in tests

tests/src/rules/prefer-default-export.js

@@ -83,28 +83,6 @@ ruleTester.run('prefer-default-export', rule, {
       code: 'export { a, b } from "foo.js"',
       parser: 'babel-eslint',
     }),
-
-    // Exporting types
-    test({
-      code: `
-        export type foo = string;
-        export type bar = number;`,
-      parser: 'typescript-eslint-parser',
-    }),
-    test({
-      code: `
-        export type foo = string;
-        export type bar = number;`,
-      parser: 'babel-eslint',
-    }),
-    test({
-      code: 'export type foo = string',
-      parser: 'typescript-eslint-parser',
-    }),
-    test({
-      code: 'export type foo = string',
-      parser: 'babel-eslint',
-    }),
     // ...SYNTAX_CASES,
   ],
   invalid: [
@@ -150,4 +128,62 @@ ruleTester.run('prefer-default-export', rule, {
       }],
     }),
   ],
-})
+});
+
+context('Typescript', function() {
+  // Typescript
+  const parsers = ['typescript-eslint-parser', 'babel-eslint'];
+
+  if (semver.satisfies(eslintPkg.version, '>5.0.0')) {
+    parsers.push('@typescript-eslint/parser');
+  }
+
+  parsers.forEach((parser) => {
+    const parserConfig = {
+      parser: parser,
+      settings: {
+        'import/parsers': { [parser]: ['.ts'] },
+        'import/resolver': { 'eslint-import-resolver-typescript': true },
+      },
+    };
+
+    ruleTester.run('export', rule, {
+      valid: [
+        // Exporting types
+        test(
+          {
+            code: `
+        export type foo = string;
+        export type bar = number;`,
+            parser,
+          },
+          parserConfig,
+        ),
+        test(
+          {
+            code: `
+        export type foo = string;
+        export type bar = number;`,
+            parser,
+          },
+          parserConfig,
+        ),
+        test(
+          {
+            code: 'export type foo = string',
+            parser,
+          },
+          parserConfig,
+        ),
+        test(
+          {
+            code: 'export type foo = string',
+            parser,
+          },
+          parserConfig,
+        ),
+      ],
+      invalid: [],
+    });
+  });
+});