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