import okhttp3.MediaType.Companion.toMediaTypeOrNull

/**
 * Test MediaType API and parsing.
 *
 * This test includes tests from [Guava's](https://code.google.com/p/guava-libraries/)
 * MediaTypeTest.
 */
open class MediaTypeTest {
  open fun MediaType.charsetName(): String? = parameter("charset")?.uppercase()

  protected open fun parse(string: String): MediaType = string.toMediaTypeOrNull()!!

import junit.framework.TestCase;
import org.jspecify.annotations.NullUnmarked;

/**
 * Tests for {@link MediaType}.
 *
 * @author Gregory Kick
 */
@GwtCompatible
@NullUnmarked
public class MediaTypeTest extends TestCase {
  @J2ktIncompatible
  @GwtIncompatible // reflection
  public void testParse_useConstants() throws Exception {
    for (MediaType constant : getConstants()) {

 * limitations under the License.
 */
package okhttp3

import kotlin.test.assertEquals
import kotlin.test.assertFailsWith
import okhttp3.MediaType.Companion.toMediaType

open class MediaTypeGetTest : MediaTypeTest() {
  override fun parse(string: String): MediaType = string.toMediaType()

  override fun assertInvalid(
    string: String,
    exceptionMessage: String?,
  ) {
    val e =