import fs from "fs";
import test from "ava";
import fetchData, {
  splitNewLines,
  cleanupArrayOfStrings,
  stringCsvToDataObject,
} from "../data.js";

test("splitNewLines", (t) => {
  const result = splitNewLines(`foo\nbar`);

  t.deepEqual(result, ["foo", "bar"]);
});

test("cleanupArrayOfStrings", (t) => {
  const result = cleanupArrayOfStrings(["", " foo", "bar ", ""]);

  t.deepEqual(result, ["foo", "bar"]);
});

test("clean an array made from a string of new lines", (t) => {
  const result = cleanupArrayOfStrings(
    splitNewLines(`
      foo
      bar
    `)
  );

  t.deepEqual(result, ["foo", "bar"]);
});

test("stringCsvToDataObject", (t) => {
  const result = stringCsvToDataObject("they,them,them, their,themself");

  t.deepEqual(result, {
    nominative: "they",
    accusative: "them",
    pronominalPossessive: "them",
    predicativePossessive: "their",
    reflexive: "themself",
  });
});

test("stringCsvToDataObject with missing pronominalPossessive", (t) => {
  const result = stringCsvToDataObject("they,them,,their,themself");

  t.deepEqual(result, {
    nominative: "they",
    accusative: "them",
    pronominalPossessive: "them",
    predicativePossessive: "their",
    reflexive: "themself",
  });
});

test("database.csv loads into array of valid data", (t) => {
  const data = fetchData();

  t.truthy(Array.isArray(data));
  t.is(typeof data[0], "object");
  t.is(typeof data[0].nominative, "string");
});