private Mock <IEnvironmentVariableRetriever> BuildEnvironmentVariableMock(
DefaultConfigurationMode?awsDefaultModeValue = null)
{
var mockEnvironmentVariableProvider = new Mock <IEnvironmentVariableRetriever>();
mockEnvironmentVariableProvider
.Setup(x => x.GetEnvironmentVariable(It.Is <string>(e => e == "AWS_DEFAULTS_MODE")))
.Returns(awsDefaultModeValue?.ToString());
return(mockEnvironmentVariableProvider);
}
/// <inheritdoc cref="IDefaultConfigurationProvider"/>
public IDefaultConfiguration GetDefaultConfiguration(
RegionEndpoint clientRegion,
DefaultConfigurationMode?requestedConfigurationMode = null)
{
var defaultConfigurationModeName =
// 1) requested mode
requestedConfigurationMode?.ToString() ??
// 2) try to get from environment variable
_environmentVariableRetriever.GetEnvironmentVariable(AWS_DEFAULTS_MODE_ENVIRONMENT_VARIABLE) ??
// 3) try to get from shared config/credential file
FallbackInternalConfigurationFactory.DefaultConfigurationModeName ??
// 4) fallback to 'Legacy'
DefaultConfigurationMode.Legacy.ToString();
Logger
.GetLogger(GetType())
.InfoFormat(
$"Resolved {nameof(DefaultConfigurationMode)} for {nameof(RegionEndpoint)} [{clientRegion?.SystemName}] to [{defaultConfigurationModeName}].");
try
{
var mode =
(DefaultConfigurationMode)
Enum.Parse(typeof(DefaultConfigurationMode), defaultConfigurationModeName, ignoreCase: true);
if (mode == DefaultConfigurationMode.Auto)
{
mode = _defaultConfigurationAutoModeResolver.Resolve(clientRegion, () => EC2InstanceMetadata.Region);
}
// save resolved values to cache
return(_availableConfigurations.First(x => x.Name == mode));
}
catch (Exception)
{
throw new AmazonClientException(
$"Failed to find requested Default Configuration Mode '{defaultConfigurationModeName}'. " +
$"Valid values are {string.Join(",", Enum.GetNames(typeof(DefaultConfigurationMode)))}");
}
}
public void OrderOfOperationsTest(
DefaultConfigurationMode?clientConfigDefaultMode,
DefaultConfigurationMode?environmentVariableDefaultMode,
DefaultConfigurationMode?sharedConfigDefaultMode,
DefaultConfigurationMode expectedDefaultMode)
{
// ARRANGE
var mockEnvironmentVariableProvider = BuildEnvironmentVariableMock(environmentVariableDefaultMode);
var mockAutoModeResolver = new Mock <IDefaultConfigurationAutoModeResolver>();
var clientConfig =
new TestClientConfig(
new DefaultConfigurationProvider(
mockEnvironmentVariableProvider.Object,
mockAutoModeResolver.Object,
_fakeDefaultConfigurations));
if (clientConfigDefaultMode.HasValue)
{
clientConfig.DefaultConfigurationMode = clientConfigDefaultMode.Value;
}
var sharedConfigFile =
"[default]\r\n" +
$"defaults_mode={sharedConfigDefaultMode?.ToString()}";
TimeSpan?actualTimeout;
using (new FallbackFactoryTest.FallbackFactoryTestFixture(sharedConfigFile, "default"))
{
// ACT
actualTimeout = clientConfig.Timeout;
}
// ASSERT
var expectedMode = _fakeDefaultConfigurations.First(x => x.Name == expectedDefaultMode);
Assert.AreEqual(expectedMode.TimeToFirstByteTimeout, actualTimeout);
}
