public void testPut_supportedPresent() {
    assertEquals("put(present, value) should return the old value", v0(), getMap().put(k0(), v3()));
    expectReplacement(entry(k0(), v3()));
  }

  @MapFeature.Require(SUPPORTS_PUT)
  public void testPut_supportedNotPresent() {
    assertNull("put(notPresent, value) should return null", put(e3()));
    expectAdded(e3());
  }

In this case, you could want to document how that external API *should* look like. What *path operation* it should have, what body it should expect, what response it should return, etc.

## An app with callbacks { #an-app-with-callbacks }

Let's see all this with an example.

Imagine you develop an app that allows creating invoices.

        assertEquals("NEXT", next, "nextCalledName should delegate to NbtAddress when called");
    }

    @Test
    void nextCalledNameWithInetAddressReturnsSMBSERVERFirstIfNotDefault() {
        // Arrange
        InetAddress addr = mock(InetAddress.class);
        when(addr.getHostName()).thenReturn("mycomputer.foo.com");
        UniAddress ua = new UniAddress(addr);
        // Act: first call should set to SMBSERVER_NAME

    /**
     * Gets the external profiles that should be considered for model building.
     *
     * @return The external profiles that should be considered for model building, never {@code null}.
     */
    List<Profile> getProfiles();

    /**
     * Sets the external profiles that should be considered for model building.
     *
     * @param profiles The external profiles that should be considered for model building, may be {@code null}.

        assertNotNull("Encoded result should not be null", encoded);
        final byte[] decoded = Base64Util.decode(encoded);
        assertEquals("Decoded should have same length", 2, decoded.length);
        assertEquals("First byte should match", twoBytes[0], decoded[0]);
        assertEquals("Second byte should match", twoBytes[1], decoded[1]);
    }

    /**

	if DB.Where("sdsd.zaaa = ?", "sd;;;aa").Pluck("aaa", &columns).Error == nil {
		t.Errorf("Should got error with invalid SQL")
	}

	if DB.Model(&User{}).Where("sdsd.zaaa = ?", "sd;;;aa").Pluck("aaa", &columns).Error == nil {
		t.Errorf("Should got error with invalid SQL")
	}

	if DB.Where("sdsd.zaaa = ?", "sd;;;aa").Find(&User{}).Error == nil {
		t.Errorf("Should got error with invalid SQL")
	}

	var count1, count2 int64

        assertEquals(24, bytesDecoded, "Should decode exactly 24 bytes");
        assertEquals(0, response.getCapabilities(), "Capabilities should be zero");
        assertArrayEquals(new byte[16], response.getServerGuid(), "Server GUID should be all zeros");
        assertEquals(0, response.getSecurityMode(), "Security mode should be zero");
        assertEquals(0, response.getDialect(), "Dialect should be zero");
    }

    @Test

        assertEquals(fileName, notifications.get(0).getFileName());
    }

    @Test
    @DisplayName("Should test isErrorResponseStatus with various status codes")
    void testIsErrorResponseStatus() throws Exception {
        // Test with NT_STATUS_NOTIFY_ENUM_DIR - should not be error
        setStatus(response, NtStatus.NT_STATUS_NOTIFY_ENUM_DIR);
        assertFalse(response.isErrorResponseStatus());

    }

    /**
     * Test the writeParameterWordsWireFormat method.
     * This method should do nothing and return 0.
     */
    @Test
    void testWriteParameterWordsWireFormat() {
        byte[] dst = new byte[10];
        int dstIndex = 0;
        // The method should return 0 as it writes no parameter words

            // When/Then: Should throw DcerpcException for invalid URLs
            assertThrows(DcerpcException.class, () -> DcerpcHandle.parseBinding(url));
        }

        @Test
        @DisplayName("Should handle binding URLs without endpoints correctly")
        void testParseBindingWithoutEndpoint() {
            // When/Then: URLs without proper endpoints should fail