Notes/spec-es6/utils/formatDownloadTitle.spec.ts

import { formatDownloadTitle } from "../../src/services/utils.ts";
import { describe, it, execute, expect } from "../mini_test.ts";

const testCases: [fnValue: Parameters<typeof formatDownloadTitle>, expectedValue: ReturnType<typeof formatDownloadTitle>][] = [
  // empty fileName tests
  [
    ["", "text", ""],
    "untitled.html"
  ],

  [
    ["", "canvas", ""],
    "untitled.json"
  ],

  [
    ["", null, ""],
    "untitled"
  ],

  // json extension from type tests
  [
    ["test_file", "canvas", ""],
    "test_file.json"
  ],

  [
    ["test_file", "relationMap", ""],
    "test_file.json"
  ],

  [
    ["test_file", "search", ""],
    "test_file.json"
  ],

  // extension based on mime type
  [
    ["test_file", null, "text/csv"],
    "test_file.csv"
  ],

  [
    ["test_file_wo_ext", "image", "image/svg+xml"],
    "test_file_wo_ext.svg"
  ],

  [
    ["test_file_wo_ext", "file", "application/json"],
    "test_file_wo_ext.json"
  ],

  [
    ["test_file_w_fake_ext.ext", "image", "image/svg+xml"],
    "test_file_w_fake_ext.ext.svg"
  ],

  [
    ["test_file_w_correct_ext.svg", "image", "image/svg+xml"],
    "test_file_w_correct_ext.svg"
  ],

  [
    ["test_file_w_correct_ext.svgz", "image", "image/svg+xml"],
    "test_file_w_correct_ext.svgz"
  ],

  [
    ["test_file.zip", "file", "application/zip"],
    "test_file.zip"
  ],

  [
    ["test_file", "file", "application/zip"],
    "test_file.zip"
  ],

  // application/octet-stream tests
  [
    ["test_file", "file", "application/octet-stream"],
    "test_file"
  ],

  [
    ["test_file.zip", "file", "application/octet-stream"],
    "test_file.zip"
  ],

  [
    ["test_file.unknown", null, "application/octet-stream"],
    "test_file.unknown"
  ],

  // sanitized filename tests
  [
    ["test/file", null, "application/octet-stream"],
    "testfile"
  ],

  [
    ["test:file.zip", "file", "application/zip"],
    "testfile.zip"
  ],

  [
    [":::", "file", "application/zip"],
    ".zip"
  ],

  [
    [":::a", "file", "application/zip"],
    "a.zip"
  ],
]


describe("utils/formatDownloadTitle unit tests", () => {

  testCases.forEach(testCase => {
    return it(`With args '${JSON.stringify(testCase[0])}' it should return '${testCase[1]}'`, () => {
      const [value, expected] = testCase;
      const actual = formatDownloadTitle(...value);
      expect(actual).toEqual(expected);
    })
  })

})

execute()