Function fn

csv/stringify_test.ts:20–581

(t)

Deno.test({
  name: "stringify() handles various inputs",
  async fn(t) {
    await t.step({
      name: "Access array index using string",
      fn() {
        const columns = ["a"];
        const data = [["foo"], ["bar"]];
        const errorMessage = 'Property accessor is not of type "number"';
        assertThrows(
          () => stringify(data, { columns }),
          TypeError,
          errorMessage,
        );
      },
    });
    await t.step(
      {
        name: "Double quote in separator",

        fn() {
          const columns = [0];
          const data = [["foo"], ["bar"]];
          const errorMessage = [
            "Separator cannot include the following strings:",
            '  - U+0022: Quotation mark (")',
            "  - U+000D U+000A: Carriage Return + Line Feed (\\r\\n)",
          ].join("\n");
          const options = { separator: '"', columns };
          assertThrows(
            () => stringify(data, options),
            TypeError,
            errorMessage,
          );
        },
      },
    );
    await t.step(
      {
        name: "CRLF in separator",
        fn() {
          const columns = [0];
          const data = [["foo"], ["bar"]];
          const errorMessage = [
            "Separator cannot include the following strings:",
            '  - U+0022: Quotation mark (")',
            "  - U+000D U+000A: Carriage Return + Line Feed (\\r\\n)",
          ].join("\n");
          const options = { separator: "\r\n", columns };
          assertThrows(
            () => stringify(data, options),
            TypeError,
            errorMessage,
          );
        },
      },
    );

    await t.step(
      {