add tests

src/git.spec.ts

@@ -0,0 +1,14 @@
+import * as git from './git';
+import * as semver from 'semver';
+
+describe('lsRemote', () => {
+    it('should return correct records', async () => {
+        const records = await git.lsRemote();
+        expect(Object.keys(records).length).not.toBeLessThan(10);
+        for (const tag in records) {
+            const ref = records[tag];
+            expect(semver.parse(tag)).toBeInstanceOf(semver.SemVer);
+            expect(ref).toMatch(/^[0-9a-f]{40}$/gi);
+        }
+    }, 100000);
+});