git-backporting/test/service/args/gha/gha-args-parser.test.ts

import { Args } from "@bp/service/args/args.types";
import GHAArgsParser from "@bp/service/args/gha/gha-args-parser";
import { spyGetInput, expectArrayEqual, removeTestFile, createTestFile } from "../../../support/utils";

const SIMPLE_CONFIG_FILE_CONTENT_PATHNAME = "./gha-args-parser-test-simple-config-file-pulls-1.json";
const SIMPLE_CONFIG_FILE_CONTENT = {
  "targetBranch": "target",
  "pullRequest": "https://localhost/whatever/pulls/1",
};

const RANDOM_CONFIG_FILE_CONTENT_PATHNAME = "./gha-args-parser-test-random-config-file.json";
const RANDOM_CONFIG_FILE_CONTENT = {
  "dryRun": true,
  "auth": "your-git-service-auth-token",
  "targetBranch": "target-branch-name",
  "pullRequest": "https://github.com/user/repo/pull/123",
  "folder": "/path/to/local/folder",
  "gitUser": "YourGitUser",
  "gitEmail": "your-email@example.com",
  "title": "Backport: Original PR Title",
  "body": "Backport: Original PR Body",
  "bodyPrefix": "backport <original-pr-link>",
  "bpBranchName": "backport-branch-name",
  "reviewers": ["reviewer1", "reviewer2"],
  "assignees": ["assignee1", "assignee2"],
  "inheritReviewers": true,
  "labels": ["cherry-pick :cherries:"],
  "inheritLabels": true,
};

describe("gha args parser", () => {
  let parser: GHAArgsParser;

  beforeAll(() => {
    // create a temporary file
    createTestFile(SIMPLE_CONFIG_FILE_CONTENT_PATHNAME, JSON.stringify(SIMPLE_CONFIG_FILE_CONTENT));
    createTestFile(RANDOM_CONFIG_FILE_CONTENT_PATHNAME, JSON.stringify(RANDOM_CONFIG_FILE_CONTENT));
  });

  afterAll(() => {
    // clean up all temporary files
    removeTestFile(SIMPLE_CONFIG_FILE_CONTENT_PATHNAME);
    removeTestFile(RANDOM_CONFIG_FILE_CONTENT_PATHNAME);
  });

  beforeEach(() => {
    // create a fresh new instance every time
    parser = new GHAArgsParser();
  });

  test("valid execution [default]", () => {
    spyGetInput({
      "target-branch": "target",
      "pull-request": "https://localhost/whatever/pulls/1"
    });

    const args: Args = parser.parse();
    expect(args.dryRun).toEqual(false);
    expect(args.auth).toEqual(undefined);
    expect(args.gitUser).toEqual(undefined);
    expect(args.gitEmail).toEqual(undefined);
    expect(args.folder).toEqual(undefined);
    expect(args.targetBranch).toEqual("target");
    expect(args.pullRequest).toEqual("https://localhost/whatever/pulls/1");
    expect(args.title).toEqual(undefined);
    expect(args.body).toEqual(undefined);
    expect(args.reviewers).toEqual([]);
    expect(args.assignees).toEqual([]);
    expect(args.inheritReviewers).toEqual(true);
    expect(args.labels).toEqual([]);
    expect(args.inheritLabels).toEqual(false);
    expect(args.squash).toEqual(true);
    expect(args.strategy).toEqual(undefined);
    expect(args.strategyOption).toEqual(undefined);
  });

  test("valid execution [override]", () => {
    spyGetInput({
      "dry-run": "true",
      "auth": "bearer-token",
      "target-branch": "target",
      "pull-request": "https://localhost/whatever/pulls/1",
      "git-user": "Me",
      "git-email": "me@email.com",
      "title": "New Title",
      "body": "New Body",
      "body-prefix": "New Body Prefix",
      "bp-branch-name": "bp_branch_name",
      "reviewers": "al , john,  jack",
      "assignees": " pippo,pluto, paperino",
      "no-inherit-reviewers": "true",
      "labels": "cherry-pick :cherries:, another spaced label",
      "inherit-labels": "true"
    });

    const args: Args = parser.parse();
    expect(args.dryRun).toEqual(true);
    expect(args.auth).toEqual("bearer-token");
    expect(args.gitUser).toEqual("Me");
    expect(args.gitEmail).toEqual("me@email.com");
    expect(args.folder).toEqual(undefined);
    expect(args.targetBranch).toEqual("target");
    expect(args.pullRequest).toEqual("https://localhost/whatever/pulls/1");
    expect(args.title).toEqual("New Title");
    expect(args.body).toEqual("New Body");
    expect(args.bodyPrefix).toEqual("New Body Prefix");
    expect(args.bpBranchName).toEqual("bp_branch_name");
    expectArrayEqual(args.reviewers!, ["al", "john", "jack"]);
    expectArrayEqual(args.assignees!, ["pippo", "pluto", "paperino"]);
    expect(args.inheritReviewers).toEqual(false);
    expectArrayEqual(args.labels!, ["cherry-pick :cherries:", "another spaced label"]);
    expect(args.inheritLabels).toEqual(true);
    expect(args.squash).toEqual(true);
    expect(args.strategy).toEqual(undefined);
    expect(args.strategyOption).toEqual(undefined);
  });

  test("using config file", () => {
    spyGetInput({
      "config-file": SIMPLE_CONFIG_FILE_CONTENT_PATHNAME,
    });

    const args: Args = parser.parse();
    expect(args.dryRun).toEqual(false);
    expect(args.auth).toEqual(undefined);
    expect(args.gitUser).toEqual(undefined);
    expect(args.gitEmail).toEqual(undefined);
    expect(args.folder).toEqual(undefined);
    expect(args.targetBranch).toEqual("target");
    expect(args.pullRequest).toEqual("https://localhost/whatever/pulls/1");
    expect(args.title).toEqual(undefined);
    expect(args.body).toEqual(undefined);
    expect(args.bodyPrefix).toEqual(undefined);
    expect(args.bpBranchName).toEqual(undefined);
    expect(args.reviewers).toEqual([]);
    expect(args.assignees).toEqual([]);
    expect(args.inheritReviewers).toEqual(true);
    expectArrayEqual(args.labels!, []);
    expect(args.inheritLabels).toEqual(false);
    expect(args.squash).toEqual(true);
    expect(args.strategy).toEqual(undefined);
    expect(args.strategyOption).toEqual(undefined);
  });

  test("ignore custom options when using config file", () => {
    spyGetInput({
      "config-file": RANDOM_CONFIG_FILE_CONTENT_PATHNAME,
      "dry-run": "true",
      "auth": "bearer-token",
      "target-branch": "target",
      "pull-request": "https://localhost/whatever/pulls/1",
      "git-user": "Me",
      "git-email": "me@email.com",
      "title": "New Title",
      "body": "New Body",
      "body-prefix": "New Body Prefix",
      "bp-branch-name": "bp_branch_name",
      "reviewers": "al , john,  jack",
      "assignees": " pippo,pluto, paperino",
      "no-inherit-reviewers": "true",
      "labels": "cherry-pick :cherries:, another spaced label",
      "inherit-labels": "false"
    });

    const args: Args = parser.parse();
    expect(args.dryRun).toEqual(true);
    expect(args.auth).toEqual("your-git-service-auth-token");
    expect(args.gitUser).toEqual("YourGitUser");
    expect(args.gitEmail).toEqual("your-email@example.com");
    expect(args.folder).toEqual("/path/to/local/folder");
    expect(args.targetBranch).toEqual("target-branch-name");
    expect(args.pullRequest).toEqual("https://github.com/user/repo/pull/123");
    expect(args.title).toEqual("Backport: Original PR Title");
    expect(args.body).toEqual("Backport: Original PR Body");
    expect(args.bodyPrefix).toEqual("backport <original-pr-link>");
    expect(args.bpBranchName).toEqual("backport-branch-name");
    expectArrayEqual(args.reviewers!, ["reviewer1", "reviewer2"]);
    expectArrayEqual(args.assignees!,["assignee1", "assignee2"]);
    expect(args.inheritReviewers).toEqual(true);
    expectArrayEqual(args.labels!, ["cherry-pick :cherries:"]);
    expect(args.inheritLabels).toEqual(true);
    expect(args.squash).toEqual(true);
    expect(args.strategy).toEqual(undefined);
    expect(args.strategyOption).toEqual(undefined);
  });

  test("override squash to false", () => {
    spyGetInput({
      "target-branch": "target",
      "pull-request": "https://localhost/whatever/pulls/1",
      "no-squash": "true",
    });

    const args: Args = parser.parse();
    expect(args.dryRun).toEqual(false);
    expect(args.auth).toEqual(undefined);
    expect(args.gitUser).toEqual(undefined);
    expect(args.gitEmail).toEqual(undefined);
    expect(args.folder).toEqual(undefined);
    expect(args.targetBranch).toEqual("target");
    expect(args.pullRequest).toEqual("https://localhost/whatever/pulls/1");
    expect(args.title).toEqual(undefined);
    expect(args.body).toEqual(undefined);
    expect(args.reviewers).toEqual([]);
    expect(args.assignees).toEqual([]);
    expect(args.inheritReviewers).toEqual(true);
    expect(args.labels).toEqual([]);
    expect(args.inheritLabels).toEqual(false);
    expect(args.squash).toEqual(false);
  });

  test("override cherry pick strategy", () => {
    spyGetInput({
      "target-branch": "target",
      "pull-request": "https://localhost/whatever/pulls/1",
      "strategy": "ort",
      "strategy-option": "ours",
    });

    const args: Args = parser.parse();
    expect(args.dryRun).toEqual(false);
    expect(args.auth).toEqual(undefined);
    expect(args.gitUser).toEqual(undefined);
    expect(args.gitEmail).toEqual(undefined);
    expect(args.folder).toEqual(undefined);
    expect(args.targetBranch).toEqual("target");
    expect(args.pullRequest).toEqual("https://localhost/whatever/pulls/1");
    expect(args.title).toEqual(undefined);
    expect(args.body).toEqual(undefined);
    expect(args.reviewers).toEqual([]);
    expect(args.assignees).toEqual([]);
    expect(args.inheritReviewers).toEqual(true);
    expect(args.labels).toEqual([]);
    expect(args.inheritLabels).toEqual(false);
    expect(args.squash).toEqual(true);
    expect(args.strategy).toEqual("ort");
    expect(args.strategyOption).toEqual("ours");
  });

  test("additional pr comments", () => {
    spyGetInput({
      "target-branch": "target",
      "pull-request": "https://localhost/whatever/pulls/1",
      "comments": "first comment;second comment",
    });

    const args: Args = parser.parse();
    expect(args.dryRun).toEqual(false);
    expect(args.auth).toEqual(undefined);
    expect(args.gitUser).toEqual(undefined);
    expect(args.gitEmail).toEqual(undefined);
    expect(args.folder).toEqual(undefined);
    expect(args.targetBranch).toEqual("target");
    expect(args.pullRequest).toEqual("https://localhost/whatever/pulls/1");
    expect(args.title).toEqual(undefined);
    expect(args.body).toEqual(undefined);
    expect(args.reviewers).toEqual([]);
    expect(args.assignees).toEqual([]);
    expect(args.inheritReviewers).toEqual(true);
    expect(args.labels).toEqual([]);
    expect(args.inheritLabels).toEqual(false);
    expect(args.squash).toEqual(true);
    expectArrayEqual(args.comments!,["first comment", "second comment"]);
  });

  test("valid execution with multiple branches", () => {
    spyGetInput({
      "target-branch": "target,old",
      "pull-request": "https://localhost/whatever/pulls/1"
    });

    const args: Args = parser.parse();
    expect(args.dryRun).toEqual(false);
    expect(args.auth).toEqual(undefined);
    expect(args.gitUser).toEqual(undefined);
    expect(args.gitEmail).toEqual(undefined);
    expect(args.folder).toEqual(undefined);
    expect(args.targetBranch).toEqual("target,old");
    expect(args.pullRequest).toEqual("https://localhost/whatever/pulls/1");
    expect(args.title).toEqual(undefined);
    expect(args.body).toEqual(undefined);
    expect(args.reviewers).toEqual([]);
    expect(args.assignees).toEqual([]);
    expect(args.inheritReviewers).toEqual(true);
    expect(args.labels).toEqual([]);
    expect(args.inheritLabels).toEqual(false);
    expect(args.squash).toEqual(true);
    expect(args.strategy).toEqual(undefined);
    expect(args.strategyOption).toEqual(undefined);
  });


  test("invalid execution with empty target branch", () => {
    spyGetInput({
      "target-branch": "  ",
      "pull-request": "https://localhost/whatever/pulls/1"
    });

    expect(() => parser.parse()).toThrowError("Missing option: pull request and target branches must be provided");
  });

  test("invalid execution with missing mandatory target branch", () => {
    spyGetInput({
      "pull-request": "https://localhost/whatever/pulls/1"
    });

    expect(() => parser.parse()).toThrowError("Missing option: pull request and target branches must be provided");
  });

  test("invalid execution with missin mandatory pull request", () => {
    spyGetInput({
      "target-branch": "target,old",
    });

    expect(() => parser.parse()).toThrowError("Missing option: pull request and target branches must be provided");
  });
});