There have been many tools created before that have helped inspire its creation.

I have been avoiding the creation of a new framework for several years. First I tried to solve all the features covered by **FastAPI** using many different frameworks, plug-ins, and tools.

 *   <li>comparing each object against an instance of an incompatible class returns false
 *   <li>comparing each pair of objects within the same equality group returns true
 *   <li>comparing each pair of objects from different equality groups returns false
 *   <li>the hash codes of any two equal objects are equal
 * </ul>
 *
 * <p>When a test fails, the error message labels the objects involved in the failed comparison as
 * follows:
 *

                        break;
                    }
                    /*
                     * Message was sent to WINS but
                     * failed to receive response.
                     * Try a different WINS server.
                     */
                    if (request.addr == getWINSAddress()) {
                        switchWINS();
                    }
                    request.addr = getWINSAddress();

// the type:
//
//   - Slice: The size specifies the length. The capacity of the slice is
//     equal to its length. A second integer argument may be provided to
//     specify a different capacity; it must be no smaller than the
//     length. For example, make([]int, 0, 10) allocates an underlying array
//     of size 10 and returns a slice of length 0 and capacity 10 that is

        assertNotNull(target1, "First instance should not be null");
        assertNotNull(target2, "Second instance should not be null");
        assertNotSame(target1, target2, "Instances should be different objects");
    }

    @Test
    public void test_class_has_proper_annotations() {
        // Verify the class doesn't have any inappropriate annotations

	dst := tmp[:0]

	// Convert as if by ES6 number to string conversion.
	// This matches most other JSON generators.
	// See golang.org/issue/6384 and golang.org/issue/14135.
	// Like fmt %g, but the exponent cutoffs are different
	// and exponents themselves are not padded to two digits.
	abs := math.Abs(f)
	fmt := byte('f')
	if abs != 0 {
		if abs < 1e-6 || abs >= 1e21 {
			fmt = 'e'
		}
	}

        // Now set a new instance
        LogStream.setInstance(testStream);
        LogStream instance2 = LogStream.getInstance();
        assertNotNull(instance2);

        // Should be different instances since setInstance replaces the previous one
        assertNotSame(instance1, instance2);
        // Getting instance again should return the same as instance2
        assertSame(instance2, LogStream.getInstance());

  virtual absl::Status Reset(const char* op, const char* raw_device_name) = 0;

  virtual const string& Name() const = 0;

  // Returns the operation's device name.
  //
  // The value returned may be different from the one set by SetDeviceName, but
  // it will be compatible with it: the name will be updated by device placement
  // logic to refer to the specific device chosen.
  //

            fail("Should throw exception when factory is null");
        } catch (NullPointerException e) {
            // Expected exception
        }
    }

    // Test concrete implementation with different name
    @Test
    public void test_differentNameImplementation() {
        TestScriptEngine customEngine = new TestScriptEngine("customName");
        assertEquals("customName", customEngine.getName());

It includes ways to authenticate using a "third party".

That's what all the systems with "login with Facebook, Google, X (Twitter), GitHub" use underneath.

### OAuth 1 { #oauth-1 }

There was an OAuth 1, which is very different from OAuth2, and more complex, as it included direct specifications on how to encrypt the communication.

It is not very popular or used nowadays.