/// <summary>
/// Selects a target runtime framework for a TestPackage based on
/// the settings in the package and the assemblies themselves.
/// The package RuntimeFramework setting may be updated as a
/// result and the selected runtime is returned.
/// </summary>
/// <param name="package">A TestPackage</param>
/// <returns>The selected RuntimeFramework</returns>
public RuntimeFramework SelectRuntimeFramework(TestPackage package)
{
RuntimeFramework currentFramework = RuntimeFramework.CurrentFramework;
string frameworkSetting = package.GetSetting(RunnerSettings.RuntimeFramework, "");
RuntimeFramework requestedFramework = frameworkSetting.Length > 0
? RuntimeFramework.Parse(frameworkSetting)
: new RuntimeFramework(RuntimeType.Any, RuntimeFramework.DefaultVersion);
log.Debug("Current framework is {0}", currentFramework);
if (requestedFramework == null)
log.Debug("No specific framework requested");
else
log.Debug("Requested framework is {0}", requestedFramework);
RuntimeType targetRuntime = requestedFramework.Runtime;
Version targetVersion = requestedFramework.FrameworkVersion;
if (targetRuntime == RuntimeType.Any)
targetRuntime = currentFramework.Runtime;
if (targetVersion == RuntimeFramework.DefaultVersion)
{
if (ServiceContext.UserSettings.GetSetting("Options.TestLoader.RuntimeSelectionEnabled", true))
foreach (string assembly in package.TestFiles)
{
using (AssemblyReader reader = new AssemblyReader(assembly))
{
Version v = new Version(reader.ImageRuntimeVersion.Substring(1));
log.Debug("Assembly {0} uses version {1}", assembly, v);
if (v > targetVersion) targetVersion = v;
}
}
else
targetVersion = RuntimeFramework.CurrentFramework.ClrVersion;
RuntimeFramework checkFramework = new RuntimeFramework(targetRuntime, targetVersion);
if (!checkFramework.IsAvailable || !ServiceContext.TestAgency.IsRuntimeVersionSupported(targetVersion))
{
log.Debug("Preferred version {0} is not installed or this NUnit installation does not support it", targetVersion);
if (targetVersion < currentFramework.FrameworkVersion)
targetVersion = currentFramework.FrameworkVersion;
}
}
RuntimeFramework targetFramework = new RuntimeFramework(targetRuntime, targetVersion);
package.Settings[RunnerSettings.RuntimeFramework] = targetFramework.ToString();
log.Debug("Test will use {0} framework", targetFramework);
return targetFramework;
}
/// <summary>
/// Selects a target runtime framework for a TestPackage based on
/// the settings in the package and the assemblies themselves.
/// The package RuntimeFramework setting may be updated as a result
/// and a string representing the selected runtime is returned.
/// </summary>
/// <param name="package">A TestPackage</param>
/// <returns>A string representing the selected RuntimeFramework</returns>
public string SelectRuntimeFramework(TestPackage package)
{
RuntimeFramework currentFramework = RuntimeFramework.CurrentFramework;
string frameworkSetting = package.GetSetting(PackageSettings.RuntimeFramework, "");
RuntimeFramework requestedFramework = frameworkSetting.Length > 0
? RuntimeFramework.Parse(frameworkSetting)
: new RuntimeFramework(RuntimeType.Any, RuntimeFramework.DefaultVersion);
log.Debug("Current framework is {0}", currentFramework);
if (requestedFramework == null)
log.Debug("No specific framework requested");
else
log.Debug("Requested framework is {0}", requestedFramework);
RuntimeType targetRuntime = requestedFramework.Runtime;
Version targetVersion = requestedFramework.FrameworkVersion;
if (targetRuntime == RuntimeType.Any)
targetRuntime = currentFramework.Runtime;
if (targetVersion == RuntimeFramework.DefaultVersion)
{
var packages = package.SubPackages;
if (packages.Count == 0)
packages.Add(package);
foreach (var subPackage in packages)
{
var assembly = subPackage.FullName;
// If the file is not an assembly or doesn't exist, then it can't
// contribute any information to the decision, so we skip it.
if (PathUtils.IsAssemblyFileType(assembly) && File.Exists(assembly))
{
using (var reader = new AssemblyReader(assembly))
{
if (!reader.IsValidPeFile)
log.Debug("{0} is not a valid PE file", assembly);
else if (!reader.IsDotNetFile)
log.Debug("{0} is not a managed assembly", assembly);
else
{
if (reader.ShouldRun32Bit)
{
package.Settings[PackageSettings.RunAsX86] = true;
log.Debug("Assembly {0} will be run x86", assembly);
}
var imageRuntimeVersion = reader.ImageRuntimeVersion;
if (imageRuntimeVersion != null)
{
var v = new Version(imageRuntimeVersion.Substring(1));
log.Debug("Assembly {0} uses version {1}", assembly, v);
// TODO: We are doing two jobs here: (1) getting the
// target version and (2) applying a policy that says
// we run under the highest version of all assemblies.
// We should implement the policy at a higher level.
if (v > targetVersion) targetVersion = v;
}
}
}
}
}
RuntimeFramework checkFramework = new RuntimeFramework(targetRuntime, targetVersion);
if (!checkFramework.IsAvailable)
{
log.Debug("Preferred version {0} is not installed or this NUnit installation does not support it", targetVersion);
if (targetVersion < currentFramework.FrameworkVersion)
targetVersion = currentFramework.FrameworkVersion;
}
}
RuntimeFramework targetFramework = new RuntimeFramework(targetRuntime, targetVersion);
package.Settings[PackageSettings.RuntimeFramework] = targetFramework.ToString();
log.Debug("Test will use {0} framework", targetFramework);
return targetFramework.ToString();
}