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Update tests

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This commit is contained in:
Ethan Lane 2024-04-12 17:54:12 +01:00
parent 00b51584b6
commit 9e25e5a0e0
3 changed files with 152 additions and 8 deletions
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2
src/imageHelper.ts
View file

@ -5,7 +5,7 @@ export default class ImageHelper {
public static async FetchImageFromRedditGallery(url: string): Promise<string | undefined> {
const fetched = await fetch(url);
if (!fetched) {
if (!fetched || fetched.errored || fetched.statusCode != 200) {
return undefined;
}

89
tests/imageHelper.test.ts
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@ -1,9 +1,90 @@
import ImageHelper from "../src/imageHelper";
import fetch from "got-cjs";
jest.mock('got-cjs');
const fetchMock = jest.mocked(fetch);
describe("FetchImageFromRedditGallery", () => {
test.todo("EXPECT image url to be returned");
test("EXPECT image url to be returned", async () => {
fetchMock.mockResolvedValue({
body: "<html><body><img src='https://preview.redd.it/image.png' /></body></html>",
errored: undefined,
statusCode: 200,
});
test.todo("GIVEN fetch is unable to return data, EXPECT undefined returned");
const result = await ImageHelper.FetchImageFromRedditGallery("https://redd.it/gallery/image");
test.todo("GIVEN image tag is not found, EXPECT undefined returned");
expect(fetchMock).toHaveBeenCalledTimes(1);
expect(fetchMock).toHaveBeenCalledWith("https://redd.it/gallery/image");
test.todo("GIVEN image source attribute is not found, EXPECT undefined returned");
expect(result).toBe("https://preview.redd.it/image.png");
});
test("GIVEN fetch is unable to return data, EXPECT undefined returned", async () => {
fetchMock.mockResolvedValue(null);
const result = await ImageHelper.FetchImageFromRedditGallery("https://redd.it/gallery/image");
expect(result).toBeUndefined();
});
test("GIVEN fetch is an error, EXPECT undefined returned", async () => {
fetchMock.mockResolvedValue({
body: "<html><body><img src='https://preview.redd.it/image.png' /></body></html>",
errored: "Error",
statusCode: 200,
});
const result = await ImageHelper.FetchImageFromRedditGallery("https://redd.it/gallery/image");
expect(result).toBeUndefined();
});
test("GIVEN fetch is not status code of 200, EXPECT undefined returned", async () => {
fetchMock.mockResolvedValue({
body: "<html><body><img src='https://preview.redd.it/image.png' /></body></html>",
errored: undefined,
statusCode: 500,
});
const result = await ImageHelper.FetchImageFromRedditGallery("https://redd.it/gallery/image");
expect(result).toBeUndefined();
});
test("GIVEN image tag is not found, EXPECT undefined returned", async () => {
fetchMock.mockResolvedValue({
body: "<html><body></body></html>",
errored: undefined,
statusCode: 200,
});
const result = await ImageHelper.FetchImageFromRedditGallery("https://redd.it/gallery/image");
expect(result).toBeUndefined();
});
test("GIVEN image source attribute is not found, EXPECT undefined returned", async () => {
fetchMock.mockResolvedValue({
body: "<html><body><img /></body></html>",
errored: undefined,
statusCode: 200,
});
const result = await ImageHelper.FetchImageFromRedditGallery("https://redd.it/gallery/image");
expect(result).toBeUndefined();
});
test("GIVEN image source attribute is not found that is a preview.redd.it url, EXPECT undefined returned", async () => {
fetchMock.mockResolvedValue({
body: "<html><body><img src='main.png' /></body></html>",
errored: undefined,
statusCode: 200,
});
const result = await ImageHelper.FetchImageFromRedditGallery("https://redd.it/gallery/image");
expect(result).toBeUndefined();
});
});

69
tests/index.test.ts
View file

@ -1,3 +1,4 @@
import ImageHelper from "../src/imageHelper";
import randomBunny from "../src/index";
import fetch from "got-cjs";
@ -170,9 +171,71 @@ describe('randomBunny', () => {
expect(fetchMock).toBeCalledWith('https://reddit.com/r/rabbits/new.json?limit=100');
});
test.todo("GIVEN data fetched is a gallery AND an image is returned from the helper, EXPECT this to be used");
test("GIVEN data fetched is a gallery AND an image is returned from the helper, EXPECT this to be used", async () => {
fetchMock.mockResolvedValue({
body: JSON.stringify({
data: {
children: [
{
data: {
archived: false,
downs: 0,
hidden: false,
permalink: '/r/Rabbits/comments/12pa5te/someone_told_pickles_its_monday_internal_fury/',
subreddit: 'Rabbits',
subreddit_subscribers: 298713,
title: 'Someone told pickles it’s Monday… *internal fury*',
ups: 1208,
url: 'https://i.redd.it/gallery/cr8xudsnkgua1',
},
},
],
}
}),
});
test.todo("GIVEN data fetched is a gallery AND an image is not returned from the helper, EXPECT error");
ImageHelper.FetchImageFromRedditGallery = jest.fn().mockResolvedValue("https://i.redd.it/cr8xudsnkgua1.jpg")
test.todo("GIVEN data fetched is not a gallery, EXPECT url to be used directly");
const result = await randomBunny('rabbits', 'new');
expect(result.IsSuccess).toBeTruthy();
expect(result.Result).toBeDefined();
expect(fetchMock).toBeCalledWith('https://reddit.com/r/rabbits/new.json?limit=100');
expect(ImageHelper.FetchImageFromRedditGallery).toHaveBeenCalledTimes(1);
expect(ImageHelper.FetchImageFromRedditGallery).toHaveBeenCalledWith("https://i.redd.it/gallery/cr8xudsnkgua1")
});
test("GIVEN data fetched is a gallery AND an image is not returned from the helper, EXPECT error", async () => {
fetchMock.mockResolvedValue({
body: JSON.stringify({
data: {
children: [
{
data: {
archived: false,
downs: 0,
hidden: false,
permalink: '/r/Rabbits/comments/12pa5te/someone_told_pickles_its_monday_internal_fury/',
subreddit: 'Rabbits',
subreddit_subscribers: 298713,
title: 'Someone told pickles it’s Monday… *internal fury*',
ups: 1208,
url: 'https://i.redd.it/gallery/cr8xudsnkgua1',
},
},
],
}
}),
});
ImageHelper.FetchImageFromRedditGallery = jest.fn().mockResolvedValue(undefined)
const result = await randomBunny('rabbits', 'new');
expect(ImageHelper.FetchImageFromRedditGallery).toHaveBeenCalledTimes(1);
expect(result.IsSuccess).toBe(false);
});
});