main funcions fixes

desktop-operator/node_modules/sumchecker/index.test-d.ts

@@ -0,0 +1,31 @@
+/*
+Copyright 2019 Mark Lee and contributors
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+import * as sumchecker from '.';
+import { ChecksumParseError, ChecksumValidator } from '.';
+
+await sumchecker('sha256', 'test/fixture/example.sha256sum', 'test/fixture', 'example');
+await sumchecker('sha256', 'test/fixture/example.sha256sum', 'test/fixture', ['example']);
+try {
+  await sumchecker('sha256', 'test/fixture/invalid.sha256sum', 'test/fixture', ['example']);
+} catch (error) {
+  if (!(error instanceof ChecksumParseError)) {
+    throw new Error('Does not throw ChecksumParseError correctly');
+  }
+}
+
+const validator = new ChecksumValidator('sha256', 'test/fixture/example.sha256sum')
+await validator.validate('test/fixture', 'example')