public class StringVisitorModelInterpolatorTest extends AbstractModelInterpolatorTest {
    protected ModelInterpolator createInterpolator() {
        return new StringVisitorModelInterpolator(null, null, bd -> true);
    }

    @BeforeEach
    @Override
    void setUp() throws Exception {
        activator = new FileProfileActivator(
                new ProfileActivationFilePathInterpolator(new DefaultPathTranslator(), bd -> true));

        context.setProjectDirectory(tempDir.toFile());

        File file = new File(tempDir.resolve("file.txt").toString());
        if (!file.createNewFile()) {

    val buffer = Buffer()
    body.writeTo(buffer)
    assertThat(buffer.readUtf8()).isEqualTo(expected)
  }

  @Test
  fun characterEncoding() {
    // Browsers convert '\u0000' to '%EF%BF%BD'.
    assertThat(formEncode(0)).isEqualTo("%00")
    assertThat(formEncode(1)).isEqualTo("%01")
    assertThat(formEncode(2)).isEqualTo("%02")
    assertThat(formEncode(3)).isEqualTo("%03")