// throws immediately with empty field name, we need to catch it here
            fail("Expected an exception for empty field name");
        } catch (IllegalArgumentException e) {
            // Expected exception for empty field name
            assertTrue(e.getMessage().contains("field name is null or empty"));
        }

		// Call the ServeHTTP to execute the handler.
		apiRouter.ServeHTTP(rec, req)
		if rec.Code != test.expectedStatus {
			t.Fatalf("Test %d: %s: Expected the response status to be `%d`, but instead found `%d`, Resp: %s", i+1, instanceType, test.expectedStatus, rec.Code, rec.Body)
		}
	}

	// Test cases for signature-V4.
	testCasesV4 := []struct {

        new ActivationProperty().equals(new ActivationProperty());
    }

    @Test
    void testEqualsIdentity() {
        ActivationProperty thing = new ActivationProperty();
        assertTrue(thing.equals(thing), "Expected " + thing + " to equal " + thing);
    }

    @Test
    void testToStringNullSafe() {
        assertNotNull(new ActivationProperty().toString());
    }

        new Developer().equals(new Developer());
    }

    @Test
    void testEqualsIdentity() {
        Developer thing = new Developer();
        assertTrue(thing.equals(thing), "Expected " + thing + " to equal " + thing);
    }

    @Test
    void testToStringNullSafe() {
        assertNotNull(new Developer().toString());
    }

        new Parent().equals(new Parent());
    }

    @Test
    void testEqualsIdentity() {
        Parent thing = new Parent();
        assertTrue(thing.equals(thing), "Expected " + thing + " to equal " + thing);
    }

    @Test
    void testToStringNullSafe() {
        assertNotNull(new Parent().toString());
    }

        new Prerequisites().equals(new Prerequisites());
    }

    @Test
    void testEqualsIdentity() {
        Prerequisites thing = new Prerequisites();
        assertTrue(thing.equals(thing), "Expected " + thing + " to equal " + thing);
    }

    @Test
    void testToStringNullSafe() {
        assertNotNull(new Prerequisites().toString());
    }

        assertFalse(new Site().equals(null));

        new Site().equals(new Site());
    }

    @Test
    void testEqualsIdentity() {
        Site thing = new Site();
        assertTrue(thing.equals(thing), "Expected " + thing + " to equal " + thing);
    }

    @Test
    void testToStringNullSafe() {
        assertNotNull(new Site().toString());
    }

        val peekedHeader =
          reader.peekHeader()
            ?: throw ProtocolException("expected a value at $reader")

        val choice =
          choices.firstOrNull { it.matches(peekedHeader) }
            ?: throw ProtocolException(
              "expected a matching choice but was $peekedHeader at $reader",
            )

        return choice to choice.fromDer(reader)
      }

                        for (final String expectedLine : expectedLines) {
                            if (actualLines.contains(expectedLine) == false) {
                                throw new GradleException("expected [" + noticePath + " to contain [" + expectedLine + "] but it did not");
                            }
                        }
                    } catch (IOException ioException) {

        try {
            runnable.run();
            throw new AssertionError("Expected " + expectedType.getSimpleName() + " to be thrown");
        } catch (final Throwable t) {
            if (!expectedType.isInstance(t)) {
                throw new AssertionError("Expected " + expectedType.getSimpleName() + " but got " + t.getClass().getSimpleName(), t);
            }
        }
    }