test: add testcases for trimPrefixRefsHeads and trimTrailingDotGit

Author: 06kellyjac

test/db-helper.test.js

@@ -0,0 +1,63 @@
+const { expect } = require('chai');
+const { trimPrefixRefsHeads, trimTrailingDotGit } = require('../src/db/helper');
+
+describe('db helpers', () => {
+  describe('trimPrefixRefsHeads', () => {
+    it('removes `refs/heads/`', () => {
+      const res = trimPrefixRefsHeads('refs/heads/test');
+      expect(res).to.equal('test');
+    });
+
+    it('removes only one `refs/heads/`', () => {
+      const res = trimPrefixRefsHeads('refs/heads/refs/heads/');
+      expect(res).to.equal('refs/heads/');
+    });
+
+    it('removes only the first `refs/heads/`', () => {
+      const res = trimPrefixRefsHeads('refs/heads/middle/refs/heads/end/refs/heads/');
+      expect(res).to.equal('middle/refs/heads/end/refs/heads/');
+    });
+
+    it('handles empty string', () => {
+      const res = trimPrefixRefsHeads('');
+      expect(res).to.equal('');
+    });
+
+    it("doesn't remove `refs/heads`", () => {
+      const res = trimPrefixRefsHeads('refs/headstest');
+      expect(res).to.equal('refs/headstest');
+    });
+
+    it("doesn't remove `/refs/heads/`", () => {
+      const res = trimPrefixRefsHeads('/refs/heads/test');
+      expect(res).to.equal('/refs/heads/test');
+    });
+  });
+
+  describe('trimTrailingDotGit', () => {
+    it('removes `.git`', () => {
+      const res = trimTrailingDotGit('test.git');
+      expect(res).to.equal('test');
+    });
+
+    it('removes only one `.git`', () => {
+      const res = trimTrailingDotGit('.git.git');
+      expect(res).to.equal('.git');
+    });
+
+    it('removes only the last `.git`', () => {
+      const res = trimTrailingDotGit('.git-middle.git-end.git');
+      expect(res).to.equal('.git-middle.git-end');
+    });
+
+    it('handles empty string', () => {
+      const res = trimTrailingDotGit('');
+      expect(res).to.equal('');
+    });
+
+    it("doesn't remove just `git`", () => {
+      const res = trimTrailingDotGit('testgit');
+      expect(res).to.equal('testgit');
+    });
+  });
+});