@Before
    public final void setUp() throws Exception {
        s3Client = AmazonS3ClientBuilder
            .standard()
            .withCredentials(
                new AWSStaticCredentialsProvider(
                    new BasicAWSCredentials(
                        s3Proxy.getAccessKey(), s3Proxy.getSecretKey())))
            .withEndpointConfiguration(
                new EndpointConfiguration(
                    s3Proxy.getUri().toString(), Regions.US_EAST_1.getName()))
            .build();

        s3Client.createBucket(MY_TEST_BUCKET);
    }
This is an example of how one would use the S3Proxy JUnit rule in a unit
test as opposed to a proper test of the S3ProxyRule class.
src/test/java/org/gaul/s3proxy/junit/S3ProxyRuleTest.java