vcard4/test/parameters/LanguageParameter.spec.js

An RFC 6350 compliant JavaScript library for generating and parsing version 4.0 vCards. Can also generate RFC 6351 compliant XML vCards and RFC 7095 compliant jCards. TypeScript type declarations are provided.

import { ParameterValueType, LanguageTagType } from "../../src/values/index.js";
import { LanguageParameter } from "../../src/parameters/index.js";
import { assert } from "chai";

describe("LanguageParameter tests", () => {
  it("Accepts valid input", () => {
    assert.doesNotThrow(
      () => new LanguageParameter(new LanguageTagType("en-us"))
    );
  });

  it("Rejects invalid input", () => {
    assert.throws(() => new LanguageParameter(1));
    assert.throws(() => new LanguageParameter());
    assert.throws(() => new LanguageParameter(new ParameterValueType("en-us")));
    assert.throws(() => new LanguageParameter({}));
  });

  it("Formats value properly", () => {
    assert.strictEqual(
      new LanguageParameter(new LanguageTagType("en-us")).repr(),
      "LANGUAGE=en-us"
    );
    assert.strictEqual(
      new LanguageParameter(new LanguageTagType("en-us")).reprXML(),
      "<language><language-tag>en-us</language-tag></language>"
    );
    assert.deepEqual(
      new LanguageParameter(new LanguageTagType("en-us")).reprJSON(),
      { language: "en-us" }
    );
  });
});