add Runtime-statics test

Author: thymikee

packages/jest-runtime/src/__tests__/Runtime-statics.test.js

@@ -0,0 +1,45 @@
+/**
+ * Copyright (c) 2014-present, Facebook, Inc. All rights reserved.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ *
+ */
+
+import HasteMap from 'jest-haste-map';
+import Runtime from '../';
+
+jest.mock('jest-haste-map');
+
+describe('Runtime statics', () => {
+  const projectConfig = {
+    cacheDirectory: '/tmp',
+    haste: {},
+    modulePathIgnorePatterns: ['/root/ignore-1', '/root/ignore-2'],
+    watchPathIgnorePatterns: ['/watch-root/ignore-1'],
+  };
+  const options = {};
+
+  beforeEach(() => {
+    jest.clearAllMocks();
+  });
+
+  test('Runtime.createHasteMap passes correct ignore files to HasteMap', () => {
+    Runtime.createHasteMap(projectConfig, options);
+    expect(HasteMap).toBeCalledWith(
+      expect.objectContaining({
+        ignorePattern: /\/root\/ignore-1|\/root\/ignore-2/,
+      }),
+    );
+  });
+
+  test('Runtime.createHasteMap passes correct ignore files to HasteMap in watch mode', () => {
+    Runtime.createHasteMap(projectConfig, {...options, watch: true});
+    expect(HasteMap).toBeCalledWith(
+      expect.objectContaining({
+        ignorePattern: /\/root\/ignore-1|\/root\/ignore-2|\/watch-root\/ignore-1/,
+        watch: true,
+      }),
+    );
+  });
+});