@applicaster/zapp-react-native-utils/audioPlayerUtils/__tests__/getImageFromEntry.test.ts

Applicaster Zapp React Native utilities package

import { getImageFromEntry } from "..";

const entry = {
  media_group: [
    {
      media_item: [
        {
          key: "image_base_key",
          src: "image_base_src",
        },
        {
          key: "thumb_1",
          src: null,
        },
        {
          key: "thumb_2",
          src: null,
        },
        {
          key: "thumb_3",
          src: null,
        },
      ],
      type: "image",
    },
  ],
};

describe("getImageFromEntry", () => {
  it("returns the src value for existing key", () => {
    const result = getImageFromEntry({
      entry,
      imageKey: "image_base_key",
    });

    expect(result).toEqual("image_base_src");
  });

  it("returns undefined for non-existing key", () => {
    const result = getImageFromEntry({
      entry,
      imageKey: "non_existing_key",
    });

    expect(result).toBeUndefined();
  });

  it("returns undefined for undefined key", () => {
    const result = getImageFromEntry({
      entry,
      imageKey: undefined,
    });

    expect(result).toBeUndefined();
  });

  it("returns undefined for non string src", () => {
    const entryWithNonStringSrc = {
      media_group: [
        {
          media_item: [
            {
              key: "image_base_key",
              src: 123,
            },
            {
              key: "thumb_1",
              src: null,
            },
          ],
          type: "image",
        },
      ],
    };

    const result = getImageFromEntry({
      entry: entryWithNonStringSrc,
      imageKey: "image_base_key",
    });

    expect(result).toBeUndefined();
  });

  it("returns undefined for empty src", () => {
    const entryWithEmptySrc = {
      media_group: [
        {
          media_item: [
            {
              key: "image_base_key",
              src: "",
            },
            {
              key: "thumb_1",
              src: null,
            },
          ],
          type: "image",
        },
      ],
    };

    const result = getImageFromEntry({
      entry: entryWithEmptySrc,
      imageKey: "image_base_key",
    });

    expect(result).toBeUndefined();
  });
});