Refactor extraheader auth handling

__test__/git-auth-helper.int.test.ts

@@ -0,0 +1,49 @@
+import {GitCommandManager} from '../lib/git-command-manager'
+import {GitAuthHelper} from '../lib/git-auth-helper'
+
+const REPO_PATH = '/git/test-repo'
+
+const extraheaderConfigKey = 'http.https://github.com/.extraheader'
+
+describe('git-auth-helper tests', () => {
+  let git: GitCommandManager
+  let gitAuthHelper: GitAuthHelper
+
+  beforeAll(async () => {
+    git = await GitCommandManager.create(REPO_PATH)
+    gitAuthHelper = new GitAuthHelper(git)
+  })
+
+  it('tests save and restore with no persisted auth', async () => {
+    await gitAuthHelper.savePersistedAuth()
+    await gitAuthHelper.restorePersistedAuth()
+  })
+
+  it('tests configure and removal of auth', async () => {
+    await gitAuthHelper.configureToken('github-token')
+    expect(await git.configExists(extraheaderConfigKey)).toBeTruthy()
+    expect(await git.getConfigValue(extraheaderConfigKey)).toEqual(
+      'AUTHORIZATION: basic eC1hY2Nlc3MtdG9rZW46Z2l0aHViLXRva2Vu'
+    )
+
+    await gitAuthHelper.removeAuth()
+    expect(await git.configExists(extraheaderConfigKey)).toBeFalsy()
+  })
+
+  it('tests save and restore of persisted auth', async () => {
+    const extraheaderConfigValue = 'AUTHORIZATION: basic ***persisted-auth***'
+    await git.config(extraheaderConfigKey, extraheaderConfigValue)
+
+    await gitAuthHelper.savePersistedAuth()
+
+    const exists = await git.configExists(extraheaderConfigKey)
+    expect(exists).toBeFalsy()
+
+    await gitAuthHelper.restorePersistedAuth()
+
+    const configValue = await git.getConfigValue(extraheaderConfigKey)
+    expect(configValue).toEqual(extraheaderConfigValue)
+
+    await gitAuthHelper.removeAuth()
+  })
+})