private Object invokeTestInstanceFactory()

in junit-jupiter-engine/src/main/java/org/junit/jupiter/engine/descriptor/ClassBasedTestDescriptor.java [294:336]

33 lines of code
8 McCabe index (conditional complexity)


	private Object invokeTestInstanceFactory(Optional<Object> outerInstance, ExtensionContext extensionContext) {
		Object instance;

		try {
			instance = this.testInstanceFactory.createTestInstance(
				new DefaultTestInstanceFactoryContext(this.testClass, outerInstance), extensionContext);
		}
		catch (Throwable throwable) {
			UnrecoverableExceptions.rethrowIfUnrecoverable(throwable);

			if (throwable instanceof TestInstantiationException) {
				throw (TestInstantiationException) throwable;
			}

			String message = String.format("TestInstanceFactory [%s] failed to instantiate test class [%s]",
				this.testInstanceFactory.getClass().getName(), this.testClass.getName());
			if (StringUtils.isNotBlank(throwable.getMessage())) {
				message += ": " + throwable.getMessage();
			}
			throw new TestInstantiationException(message, throwable);
		}

		if (!this.testClass.isInstance(instance)) {
			String testClassName = this.testClass.getName();
			Class<?> instanceClass = (instance == null ? null : instance.getClass());
			String instanceClassName = (instanceClass == null ? "null" : instanceClass.getName());

			// If the test instance was loaded via a different ClassLoader, append
			// the identity hash codes to the type names to help users disambiguate
			// between otherwise identical "fully qualified class names".
			if (testClassName.equals(instanceClassName)) {
				testClassName += "@" + Integer.toHexString(System.identityHashCode(this.testClass));
				instanceClassName += "@" + Integer.toHexString(System.identityHashCode(instanceClass));
			}
			String message = String.format(
				"TestInstanceFactory [%s] failed to return an instance of [%s] and instead returned an instance of [%s].",
				this.testInstanceFactory.getClass().getName(), testClassName, instanceClassName);

			throw new TestInstantiationException(message);
		}

		return instance;
	}