Merge pull request #341 from concord-consortium/create-legacy-google-…

…provider

Created LegacyGoogleDriveProvider [PT-186571871]

src/code/providers/legacy-google-drive-provider.test.ts

@@ -0,0 +1,28 @@
+import { CloudFileManagerClient } from "../client"
+import LegacyGoogleDriveProvider from "./legacy-google-drive-provider"
+
+describe('LegacyGoogleDriveProvider', () => {
+
+  const clientId = 'mockClientId'
+  const apiKey = 'mockApiKey'
+
+  const client = new CloudFileManagerClient()
+
+  it('should throw exception without credentials', () => {
+    expect(() => new LegacyGoogleDriveProvider({} as any, client)).toThrow()
+    expect(() => new LegacyGoogleDriveProvider({ clientId } as any, client)).toThrow()
+    expect(() => new LegacyGoogleDriveProvider({ apiKey } as any, client)).toThrow()
+    expect(() => new LegacyGoogleDriveProvider({ clientId, apiKey }, client)).not.toThrow()
+  })
+
+  it('should load the google API only once', () => {
+    const provider = new LegacyGoogleDriveProvider({ clientId, apiKey }, client)
+    const promise1 = LegacyGoogleDriveProvider.apiLoadPromise
+    const promise2 = provider.waitForAPILoad()
+    expect(promise1).toBe(promise2)
+    const promise3 = provider.waitForAPILoad()
+    expect(promise1).toBe(promise3)
+    expect(promise2).toBe(promise3)
+  })
+
+})