public void GetStartupTypes_WithType()
{
var actualTypes = FunctionsStartupAttribute.GetStartupTypes(typeof(FunctionsStartupAttributeTest).Assembly, typeof(TargetTypeWithAttribute));
// Ordering is based on the Order properties
var expectedTypes = new[] { typeof(TestStartup2), typeof(TestStartup3), typeof(TestStartup1) };
Assert.Equal(expectedTypes, actualTypes);
}
public void GetStartupTypes_NoType()
{
var actualTypes = FunctionsStartupAttribute.GetStartupTypes(typeof(FunctionsStartupAttributeTest).Assembly, null);
// TestStartup2 comes before TestStartup1 due to the Order properties.
var expectedTypes = new[] { typeof(TestStartup2), typeof(TestStartup1) };
Assert.Equal(expectedTypes, actualTypes);
}
/// <summary>
/// Uses the functions startup classes specified by <see cref="FunctionsStartupAttribute"/> when configuring the host.
/// Startup classes can contribute to logging, configuration sources, services, and application configuration.
/// </summary>
/// <param name="webHostBuilder">The web host builder to configure.</param>
/// <param name="assembly">The assembly to query for attributes specifying startup classes.</param>
/// <param name="functionType">The function type to query for attributes specifying startup classes, or null to skip this query.</param>
/// <returns>The original builder, for method chaining.</returns>
public static IWebHostBuilder UseFunctionsStartups(this IWebHostBuilder webHostBuilder, Assembly assembly, Type?functionType)
{
foreach (var startupClass in FunctionsStartupAttribute.GetStartupTypes(assembly, functionType))
{
var startup = (FunctionsStartup)Activator.CreateInstance(startupClass) !;
webHostBuilder.UseFunctionsStartup(startup);
}
return(webHostBuilder);
}
