updateProperties(fetchedVersions)
    }

    private
    fun getPluginIds(): List<String> {
        val props = Properties()
        propertiesFile.get().asFile.reader().use { input ->
            props.load(input)
        }
        return props.keys.map { it as String }.sorted()
    }

    private
    fun fetchLatestVersions(pluginIds: List<String>): List<TestedVersion> =
        pluginIds

    assertFailsToDecode(base64(), "12345", "Invalid input length 5");
    // These have a combination of invalid length, unrecognized characters and wrong padding.
    assertFailsToDecode(base64(), "AB=C", "Unrecognized character: =");
    assertFailsToDecode(base64(), "A=BCD", "Invalid input length 5");
    assertFailsToDecode(base64(), "?", "Invalid input length 1");
  }

  public void testBase64CannotUpperCase() {

    client = TestClient(app)
    response = client.post("/model-optional-str")
    assert response.status_code == 422, response.text
    assert response.json() == {
        "detail": [
            {
                "input": None,
                "loc": ["body"],
                "msg": "Field required",
                "type": "missing",
            },
        ],
    }


@pytest.mark.parametrize(
    "path",

      new Function<@Nullable String, @Nullable Character>() {
        @Override
        public @Nullable Character apply(@Nullable String input) {
          return input == null ? null : input.charAt(0);
        }
      };

  @Override
  protected Table<String, Integer, Character> create(@Nullable Object... data) {
    Table<String, Integer, String> table = HashBasedTable.create();

        _ * linkRenderer.link(method, listener) >> parse('<someLinkElement/>')

        when:
        def link = converter.resolve(input, classMetaData, listener)

        then:
        format(link) == '<someLinkElement/>'

        where:
        input << [
                '#someName(SomeClass,Object)',
                '#someName(SomeClass, Object)',
                '#someName(SomeClass,\tObject)',

    assert response.json() == {
        "detail": [
            {
                "type": "int_parsing",
                "loc": ["body", "size"],
                "msg": "Input should be a valid integer, unable to parse string as an integer",
                "input": "XL",
            }
        ],
        "body": {"title": "towel", "size": "XL"},
    }


def test_post():
    data = {"title": "towel", "size": 5}

                "loc": ["query", "token"],
                "msg": "Field required",
                "input": None,
            },
            {
                "type": "missing",
                "loc": ["header", "x-token"],
                "msg": "Field required",
                "input": None,
            },
        ]
    }


def test_put_invalid_header(client: TestClient):

   * (NCR). Any non-ASCII characters appearing in the input will be preserved in the output.
   * Specifically "\r" (carriage return) is preserved in the output, which may result in it being
   * silently converted to "\n" when the XML is parsed.
   *
   * <p>This escaper does not treat surrogate pairs specially and does not perform Unicode
   * validation on its input.
   */
  public static Escaper xmlContentEscaper() {

    assert response.json() == {
        "detail": [
            {
                "type": "missing",
                "loc": IsOneOf(["body"], ["body", "p"]),
                "msg": "Field required",
                "input": IsOneOf(None, {}),
            }
        ]
    }


@pytest.mark.parametrize(
    "path",
    ["/required-str", "/model-required-str"],
)
def test_required_str(path: str):
    client = TestClient(app)

```

## Commandline

`jstream` comes with a cli tool for quick viewing of parsed values from JSON input:

```bash
jstream -d 1 < input.json
```

```json
{"colors":["red","green","blue"],"desc":"RGB"}
{"colors":["cyan","magenta","yellow","black"],"desc":"CMYK"}
```

detailed output with `-v` option:
```bash
cat input.json | jstream -v -d -1

depth	start	end	type   | value
2	018	023	string | "RGB"