fail();
    } catch (TimeoutException expected) {
    } catch (ExecutionException e) {
      throw new AssertionError(e);
    }
  }

  static void verifyTimedGetOnPendingFuture(Future<?> future) {
    try {
      getUninterruptibly(future, 0, SECONDS);
      fail();
    } catch (TimeoutException expected) {
    } catch (ExecutionException e) {
      throw new AssertionError(e);
    }

  public <T> void testCaptureTypeParameter() throws Exception {
    TypeVariable<?> variable = new TypeParameter<T>() {}.typeVariable;
    TypeVariable<?> expected =
        TypeParameterTest.class.getDeclaredMethod("testCaptureTypeParameter")
            .getTypeParameters()[0];
    assertEquals(expected, variable);
  }

  public void testConcreteTypeRejected() {
    assertThrows(IllegalArgumentException.class, () -> new TypeParameter<String>() {});

      throw new AssertionError(
          "expected to throw " + expectedThrowable.getSimpleName() + " but threw " + t, t);
    }
    if (userPassedSupplier) {
      throw new AssertionError(
          "expected to throw "
              + expectedThrowable.getSimpleName()
              + " but returned result: "
              + result);
    } else {
      throw new AssertionError("expected to throw " + expectedThrowable.getSimpleName());

      throw new AssertionError(
          "expected to throw " + expectedThrowable.getSimpleName() + " but threw " + t, t);
    }
    if (userPassedSupplier) {
      throw new AssertionError(
          "expected to throw "
              + expectedThrowable.getSimpleName()
              + " but returned result: "
              + result);
    } else {
      throw new AssertionError("expected to throw " + expectedThrowable.getSimpleName());

      throw new AssertionError(
          "expected to throw " + expectedThrowable.getSimpleName() + " but threw " + t, t);
    }
    if (userPassedSupplier) {
      throw new AssertionError(
          "expected to throw "
              + expectedThrowable.getSimpleName()
              + " but returned result: "
              + result);
    } else {
      throw new AssertionError("expected to throw " + expectedThrowable.getSimpleName());

        assertTrue(f1.equals(f2), "Expected " + f1 + " to equal " + f2);
        assertTrue(f2.equals(f1), "Expected " + f2 + " to equal " + f1);
        assertTrue(f1.hashCode() == f2.hashCode());

        IncludesArtifactFilter f3 = new IncludesArtifactFilter(Arrays.asList("d", "c", "e"));
        assertTrue(f1.equals(f3), "Expected " + f1 + " to equal " + f3);
        assertTrue(f1.hashCode() == f3.hashCode());

                "SOURCE",
                merged.getArtifactId(),
                "Expected merged artifactId to be SOURCE but was " + merged.getArtifactId());

        merged = mavenMerger.merge(target, source, false, null);
        assertEquals(
                "TARGET",
                merged.getArtifactId(),
                "Expected merged artifactId to be TARGET but was " + merged.getArtifactId());
    }

    @Test

    assertThat(factory.getSinkContents()).isEqualTo(expected);
  }

  private void assertContainsExpectedLines(String separator) throws IOException {
    String expected = expectedLines.isEmpty() ? "" : Joiner.on(separator).join(expectedLines);
    if (!lines.isEmpty()) {
      // if we wrote any lines in writeLines(), there will be a trailing newline
      expected += separator;
    }

      }
      return result
    }

    /**
     * Checks if `expected` and `observed` are equal when viewed as a set and headers are
     * deduped.
     *
     * TODO: See if duped headers should be preserved on decode and verify.
     */
    private fun assertSetEquals(
      message: String,
      expected: List<Header>,
      observed: List<Header>,
    ) {

        override fun source(): BufferedSource = Buffer().writeUtf8("hello")
      }
    assertFailsWith<IOException> {
      body.bytes()
    }.also { expected ->
      assertThat(expected.message).isEqualTo(
        "Content-Length (10) and stream length (5) disagree",
      )
    }
  }

  @Test
  fun bytesThrowsMoreThanIntMaxValue() {
    val body: ResponseBody =