Add tests and test plan for GitHub database download

docs/test-plan.md

@@ -185,6 +185,24 @@ Note that this test requires the feature flag: `codeQL.model.flowGeneration`
 2. Click "Generate".
    - Check that rows are filled out.
 
+### GitHub database download
+
+#### Test case 1: Download a database
+
+Open a clone of the [`github/codeql`](https://github.com/github/codeql) repository as a folder.
+
+1. Wait a few seconds until the CodeQL extension is fully initialized.
+   - Check that the following prompt appears:
+
+     ![database-download-prompt](images/github-database-download-prompt.png)
+
+   - If the prompt does not appear, ensure that the `codeQL.githubDatabase.download` setting is not set in workspace or user settings.
+
+2. Click "Download".
+3. Select the "C#" and "JavaScript" databases.
+   - Check that there are separate notifications for both downloads.
+   - Check that both databases are added when the downloads are complete.
+
 ### General
 
 #### Test case 1: Change to a different colour theme

extensions/ql-vscode/src/databases/github-databases/github-databases-module.ts

@@ -12,10 +12,7 @@ import {
   askForGitHubDatabaseDownload,
   downloadDatabaseFromGitHub,
 } from "./download";
-import {
-  GitHubDatabaseConfig,
-  GitHubDatabaseConfigListener,
-} from "../../config";
+import { GitHubDatabaseConfig } from "../../config";
 import { DatabaseManager } from "../local-databases";
 import { CodeQLCliServer } from "../../codeql-cli/cli";
 import { CodeqlDatabase, listDatabases, ListDatabasesResult } from "./api";
@@ -28,30 +25,33 @@ import {
 import { Octokit } from "@octokit/rest";
 
 export class GitHubDatabasesModule extends DisposableObject {
-  private readonly config: GitHubDatabaseConfig;
-
-  private constructor(
+  /**
+   * This constructor is public only for testing purposes. Please use the `initialize` method
+   * instead.
+   */
+  constructor(
     private readonly app: App,
     private readonly databaseManager: DatabaseManager,
     private readonly databaseStoragePath: string,
     private readonly cliServer: CodeQLCliServer,
+    private readonly config: GitHubDatabaseConfig,
   ) {
     super();
-
-    this.config = this.push(new GitHubDatabaseConfigListener());
   }
 
   public static async initialize(
     app: App,
     databaseManager: DatabaseManager,
     databaseStoragePath: string,
     cliServer: CodeQLCliServer,
+    config: GitHubDatabaseConfig,
   ): Promise<GitHubDatabasesModule> {
     const githubDatabasesModule = new GitHubDatabasesModule(
       app,
       databaseManager,
       databaseStoragePath,
       cliServer,
+      config,
     );
     app.subscriptions.push(githubDatabasesModule);
 
@@ -72,7 +72,10 @@ export class GitHubDatabasesModule extends DisposableObject {
     });
   }
 
-  private async promptGitHubRepositoryDownload(): Promise<void> {
+  /**
+   * This method is public only for testing purposes.
+   */
+  public async promptGitHubRepositoryDownload(): Promise<void> {
     if (this.config.download === "never") {
       return;
     }

extensions/ql-vscode/src/extension.ts

@@ -28,6 +28,7 @@ import { CliVersionConstraint, CodeQLCliServer } from "./codeql-cli/cli";
 import {
   CliConfigListener,
   DistributionConfigListener,
+  GitHubDatabaseConfigListener,
   isCanary,
   joinOrderWarningThreshold,
   QueryHistoryConfigListener,
@@ -867,11 +868,14 @@ async function activateWithInstalledDistribution(
     ),
   );
 
+  const githubDatabaseConfigListener = new GitHubDatabaseConfigListener();
+
   await GitHubDatabasesModule.initialize(
     app,
     dbm,
     getContextStoragePath(ctx),
     cliServer,
+    githubDatabaseConfigListener,
   );
 
   void extLogger.log("Initializing query history.");

extensions/ql-vscode/test/vscode-tests/no-workspace/databases/github-databases/github-databases-module.test.ts

@@ -0,0 +1,277 @@
+import { window } from "vscode";
+import { Octokit } from "@octokit/rest";
+import { createMockApp } from "../../../../__mocks__/appMock";
+import { App } from "../../../../../src/common/app";
+import { DatabaseManager } from "../../../../../src/databases/local-databases";
+import { mockEmptyDatabaseManager } from "../../query-testing/test-runner-helpers";
+import { CodeQLCliServer } from "../../../../../src/codeql-cli/cli";
+import { mockDatabaseItem, mockedObject } from "../../../utils/mocking.helpers";
+import { GitHubDatabaseConfig } from "../../../../../src/config";
+import { GitHubDatabasesModule } from "../../../../../src/databases/github-databases";
+import { ValueResult } from "../../../../../src/common/value-result";
+import { CodeqlDatabase } from "../../../../../src/databases/github-databases/api";
+
+import * as githubRepositoryFinder from "../../../../../src/databases/github-repository-finder";
+import * as githubDatabasesApi from "../../../../../src/databases/github-databases/api";
+import * as githubDatabasesDownload from "../../../../../src/databases/github-databases/download";
+import * as githubDatabasesUpdates from "../../../../../src/databases/github-databases/updates";
+import { DatabaseUpdate } from "../../../../../src/databases/github-databases/updates";
+
+describe("GitHubDatabasesModule", () => {
+  describe("promptGitHubRepositoryDownload", () => {
+    let app: App;
+    let databaseManager: DatabaseManager;
+    let databaseStoragePath: string;
+    let cliServer: CodeQLCliServer;
+    let config: GitHubDatabaseConfig;
+    let gitHubDatabasesModule: GitHubDatabasesModule;
+
+    const owner = "github";
+    const repo = "vscode-codeql";
+
+    const databases: CodeqlDatabase[] = [
+      mockedObject<CodeqlDatabase>({}),
+      mockedObject<CodeqlDatabase>({}),
+    ];
+
+    let octokit: Octokit;
+
+    let findGitHubRepositoryForWorkspaceSpy: jest.SpiedFunction<
+      typeof githubRepositoryFinder.findGitHubRepositoryForWorkspace
+    >;
+    let listDatabasesSpy: jest.SpiedFunction<
+      typeof githubDatabasesApi.listDatabases
+    >;
+    let askForGitHubDatabaseDownloadSpy: jest.SpiedFunction<
+      typeof githubDatabasesDownload.askForGitHubDatabaseDownload
+    >;
+    let downloadDatabaseFromGitHubSpy: jest.SpiedFunction<
+      typeof githubDatabasesDownload.downloadDatabaseFromGitHub
+    >;
+    let isNewerDatabaseAvailableSpy: jest.SpiedFunction<
+      typeof githubDatabasesUpdates.isNewerDatabaseAvailable
+    >;
+    let askForGitHubDatabaseUpdateSpy: jest.SpiedFunction<
+      typeof githubDatabasesUpdates.askForGitHubDatabaseUpdate
+    >;
+    let downloadDatabaseUpdateFromGitHubSpy: jest.SpiedFunction<
+      typeof githubDatabasesUpdates.downloadDatabaseUpdateFromGitHub
+    >;
+    let showInformationMessageSpy: jest.SpiedFunction<
+      typeof window.showInformationMessage
+    >;
+
+    beforeEach(() => {
+      app = createMockApp();
+      databaseManager = mockEmptyDatabaseManager();
+      databaseStoragePath = "/a/b/some-path";
+      cliServer = mockedObject<CodeQLCliServer>({});
+      config = mockedObject<GitHubDatabaseConfig>({
+        download: "ask",
+        update: "ask",
+      });
+
+      gitHubDatabasesModule = new GitHubDatabasesModule(
+        app,
+        databaseManager,
+        databaseStoragePath,
+        cliServer,
+        config,
+      );
+
+      octokit = mockedObject<Octokit>({});
+
+      findGitHubRepositoryForWorkspaceSpy = jest
+        .spyOn(githubRepositoryFinder, "findGitHubRepositoryForWorkspace")
+        .mockResolvedValue(ValueResult.ok({ owner, name: repo }));
+
+      listDatabasesSpy = jest
+        .spyOn(githubDatabasesApi, "listDatabases")
+        .mockResolvedValue({
+          promptedForCredentials: false,
+          databases,
+          octokit,
+        });
+
+      askForGitHubDatabaseDownloadSpy = jest
+        .spyOn(githubDatabasesDownload, "askForGitHubDatabaseDownload")
+        .mockRejectedValue(new Error("Not implemented"));
+      downloadDatabaseFromGitHubSpy = jest
+        .spyOn(githubDatabasesDownload, "downloadDatabaseFromGitHub")
+        .mockRejectedValue(new Error("Not implemented"));
+      isNewerDatabaseAvailableSpy = jest
+        .spyOn(githubDatabasesUpdates, "isNewerDatabaseAvailable")
+        .mockImplementation(() => {
+          throw new Error("Not implemented");
+        });
+      askForGitHubDatabaseUpdateSpy = jest
+        .spyOn(githubDatabasesUpdates, "askForGitHubDatabaseUpdate")
+        .mockRejectedValue(new Error("Not implemented"));
+      downloadDatabaseUpdateFromGitHubSpy = jest
+        .spyOn(githubDatabasesUpdates, "downloadDatabaseUpdateFromGitHub")
+        .mockRejectedValue(new Error("Not implemented"));
+
+      showInformationMessageSpy = jest
+        .spyOn(window, "showInformationMessage")
+        .mockResolvedValue(undefined);
+    });
+
+    it("does nothing if the download config is set to never", async () => {
+      config = mockedObject<GitHubDatabaseConfig>({
+        download: "never",
+      });
+
+      gitHubDatabasesModule = new GitHubDatabasesModule(
+        app,
+        databaseManager,
+        databaseStoragePath,
+        cliServer,
+        config,
+      );
+
+      await gitHubDatabasesModule.promptGitHubRepositoryDownload();
+
+      expect(findGitHubRepositoryForWorkspaceSpy).not.toHaveBeenCalled();
+    });
+
+    it("does nothing if there is no GitHub repository", async () => {
+      findGitHubRepositoryForWorkspaceSpy.mockResolvedValue(
+        ValueResult.fail(["some error"]),
+      );
+
+      await gitHubDatabasesModule.promptGitHubRepositoryDownload();
+    });
+
+    it("does nothing if the user doesn't complete the download", async () => {
+      listDatabasesSpy.mockResolvedValue(undefined);
+
+      await gitHubDatabasesModule.promptGitHubRepositoryDownload();
+    });
+
+    it("does not show a prompt when there are no databases and the user was not prompted for credentials", async () => {
+      listDatabasesSpy.mockResolvedValue({
+        promptedForCredentials: false,
+        databases: [],
+        octokit,
+      });
+
+      await gitHubDatabasesModule.promptGitHubRepositoryDownload();
+
+      expect(showInformationMessageSpy).not.toHaveBeenCalled();
+    });
+
+    it("shows a prompt when there are no databases and the user was prompted for credentials", async () => {
+      listDatabasesSpy.mockResolvedValue({
+        promptedForCredentials: true,
+        databases: [],
+        octokit,
+      });
+
+      await gitHubDatabasesModule.promptGitHubRepositoryDownload();
+
+      expect(showInformationMessageSpy).toHaveBeenCalledWith(
+        "The GitHub repository does not have any CodeQL databases.",
+      );
+    });
+
+    it("shows a prompt when there are no databases and the user was prompted for credentials", async () => {
+      listDatabasesSpy.mockResolvedValue({
+        promptedForCredentials: true,
+        databases: [],
+        octokit,
+      });
+
+      await gitHubDatabasesModule.promptGitHubRepositoryDownload();
+
+      expect(showInformationMessageSpy).toHaveBeenCalledWith(
+        "The GitHub repository does not have any CodeQL databases.",
+      );
+    });
+
+    it("downloads the database if the user confirms the download", async () => {
+      isNewerDatabaseAvailableSpy.mockReturnValue({
+        type: "noDatabase",
+      });
+      askForGitHubDatabaseDownloadSpy.mockResolvedValue(true);
+      downloadDatabaseFromGitHubSpy.mockResolvedValue(undefined);
+
+      await gitHubDatabasesModule.promptGitHubRepositoryDownload();
+
+      expect(askForGitHubDatabaseDownloadSpy).toHaveBeenCalledWith(
+        databases,
+        config,
+      );
+      expect(downloadDatabaseFromGitHubSpy).toHaveBeenCalledWith(
+        octokit,
+        owner,
+        repo,
+        databases,
+        databaseManager,
+        databaseStoragePath,
+        cliServer,
+        app.commands,
+      );
+    });
+
+    it("does not perform the download if the user cancels the download", async () => {
+      isNewerDatabaseAvailableSpy.mockReturnValue({
+        type: "noDatabase",
+      });
+      askForGitHubDatabaseDownloadSpy.mockResolvedValue(false);
+
+      await gitHubDatabasesModule.promptGitHubRepositoryDownload();
+
+      expect(downloadDatabaseFromGitHubSpy).not.toHaveBeenCalled();
+    });
+
+    it("updates the database if the user confirms the update", async () => {
+      const databaseUpdates: DatabaseUpdate[] = [
+        {
+          database: databases[0],
+          databaseItem: mockDatabaseItem(),
+        },
+      ];
+      isNewerDatabaseAvailableSpy.mockReturnValue({
+        type: "updateAvailable",
+        databaseUpdates,
+      });
+      askForGitHubDatabaseUpdateSpy.mockResolvedValue(true);
+      downloadDatabaseUpdateFromGitHubSpy.mockResolvedValue(undefined);
+
+      await gitHubDatabasesModule.promptGitHubRepositoryDownload();
+
+      expect(askForGitHubDatabaseUpdateSpy).toHaveBeenCalledWith(
+        databaseUpdates,
+        config,
+      );
+      expect(downloadDatabaseUpdateFromGitHubSpy).toHaveBeenCalledWith(
+        octokit,
+        owner,
+        repo,
+        databaseUpdates,
+        databaseManager,
+        databaseStoragePath,
+        cliServer,
+        app.commands,
+      );
+    });
+
+    it("does not perform the update if the user cancels the update", async () => {
+      const databaseUpdates: DatabaseUpdate[] = [
+        {
+          database: databases[0],
+          databaseItem: mockDatabaseItem(),
+        },
+      ];
+      isNewerDatabaseAvailableSpy.mockReturnValue({
+        type: "updateAvailable",
+        databaseUpdates,
+      });
+      askForGitHubDatabaseUpdateSpy.mockResolvedValue(false);
+
+      await gitHubDatabasesModule.promptGitHubRepositoryDownload();
+
+      expect(downloadDatabaseUpdateFromGitHubSpy).not.toHaveBeenCalled();
+    });
+  });
+});