public static void BindConfiguration_UpdatesOptionOnConfigurationUpdate()
{
const string configSectionName = "Test";
string messageConfigKey = ConfigurationPath.Combine(configSectionName, nameof(FakeOptions.Message));
const string messageValue1 = "This is a test";
const string messageValue2 = "This is the message after update";
FakeConfigurationSource configSource = new()
{
InitialData = new Dictionary <string, string?>
{
[messageConfigKey] = messageValue1
}
};
var services = new ServiceCollection();
services.AddSingleton <IConfiguration>(new ConfigurationBuilder()
.Add(configSource)
.Build());
OptionsBuilder <FakeOptions> optionsBuilder = services.AddOptions <FakeOptions>();
_ = optionsBuilder.BindConfiguration(configSectionName);
using ServiceProvider serviceProvider = services.BuildServiceProvider();
var optionsMonitor = serviceProvider.GetRequiredService <IOptionsMonitor <FakeOptions> >();
bool updateHasRun = false;
optionsMonitor.OnChange((opts, name) =>
{
updateHasRun = true;
});
FakeOptions optionsValue1 = optionsMonitor.CurrentValue;
Assert.Equal(messageValue1, optionsValue1.Message);
configSource.Provider.Set(messageConfigKey, messageValue2);
FakeOptions optionsValue2 = optionsMonitor.CurrentValue;
Assert.True(updateHasRun);
Assert.Equal(messageValue2, optionsValue2.Message);
}
}
public static void BindConfiguration_UsesConfigurationRootIfSectionNameIsEmptyString()
{
const string messageValue = "This is a test";
var configEntries = new Dictionary <string, string?>
{
[nameof(FakeOptions.Message)] = messageValue
};
var services = new ServiceCollection();
services.AddSingleton <IConfiguration>(new ConfigurationBuilder()
.AddInMemoryCollection(configEntries)
.Build());
OptionsBuilder <FakeOptions> optionsBuilder = services.AddOptions <FakeOptions>();
_ = optionsBuilder.BindConfiguration(configSectionPath: "");
using ServiceProvider serviceProvider = services.BuildServiceProvider();
FakeOptions options = serviceProvider.GetRequiredService <IOptions <FakeOptions> >().Value;
Assert.Equal(messageValue, options.Message);
}