public void TestDetermineRegionFromURL()
{
Assert.AreEqual("eu-west-1", AWSSDKUtils.DetermineRegion("https://autoscaling.eu-west-1.amazonaws.com/"));
Assert.AreEqual("eu-west-1", AWSSDKUtils.DetermineRegion("https://cognito-identity.eu-west-1.amazonaws.com/"));
Assert.AreEqual("us-east-1", AWSSDKUtils.DetermineRegion("https://route53.amazonaws.com/"));
Assert.AreEqual("us-east-1", AWSSDKUtils.DetermineRegion("https://s3.amazonaws.com/"));
Assert.AreEqual("us-east-1", AWSSDKUtils.DetermineRegion("https://s3-external-1.amazonaws.com/"));
Assert.AreEqual("eu-central-1", AWSSDKUtils.DetermineRegion("https://s3-eu-central-1.amazonaws.com/"));
Assert.AreEqual("eu-central-1", AWSSDKUtils.DetermineRegion("https://s3.eu-central-1.amazonaws.com/"));
Assert.AreEqual("us-west-2", AWSSDKUtils.DetermineRegion("https://streams.dynamodb.us-west-2.amazonaws.com/"));
}