internal static IEnumerable <Instance> GetInstances(IEnumerable <VsInstallation> installations, ITestMethod testMethod, VsTestSettings testSettings, ConcurrentDictionary <string, Instance> instances)
{
var output = new StringBuilder();
installations = FilterInstallations(installations, testSettings, output, ParentVsProcess.Value.GetMainModuleFileName());
if (!installations.Any())
{
throw new InvalidOperationException("Cannot find a viable Visual Studio Instance for the specified test case.\r\n" + output);
}
foreach (var installation in installations)
{
var instanceId = $"{VersionUtil.GetYear(installation.Version)} {testSettings.RootSuffix}";
if (!testSettings.ReuseInstance)
{
var fullMethodName = testMethod.TestClass.Class.ToRuntimeType() + testMethod.Method.Name;
instanceId += string.Format(" {0:X}", fullMethodName.GetHashCode()).ToLower();
}
yield return(instances.GetOrAdd(instanceId, id => new Instance(id, installation.ApplicationPath, testMethod.TestClass.TestCollection.TestAssembly)));
}
}
internal static IEnumerable <VsInstallation> FilterInstallations(IEnumerable <VsInstallation> installations, VsTestSettings settings, StringBuilder output = null, string preferedAppPath = null)
{
foreach (var group in installations.GroupBy(i => i.Version.Major).OrderBy(g => g.Key))
{
foreach (var installation in group
.OrderBy(i => !i.ApplicationPath.Equals(preferedAppPath, StringComparison.OrdinalIgnoreCase))
.ThenBy(i => i.Name.Contains("-pre")))
{
if (!settings.SupportedVersionRanges.Any(range => installation.Version >= range.Minimum && installation.Version <= range.Maximum))
{
output?.AppendLine($"Skipping {installation.Path} because the version {installation.Version} is not within any specified version range {string.Join(";", settings.SupportedVersionRanges)}.");
continue;
}
yield return(installation);
break;
}
}
}