protected override async Task <Tuple <decimal, string> > InvokeTestAsync(ExceptionAggregator aggregator)
{
BenchmarkEventSource.Log.BenchmarkStart(this.DisplayName, TestCase.Iterations);
//inject ITracer instance if test method defines single parameter of type ITracer
var testMethodParams = TestMethod.GetParameters();
var hasTracerParam = (testMethodParams.Length == 1 && testMethodParams[0].ParameterType == typeof(ITracer));
var args = hasTracerParam ? new object[] { NullTracer.Instance } : null;
//run the test once to make sure it's been jitted
await new BenchmarkTestInvoker(Test, MessageBus, TestClass, ConstructorArguments, TestMethod, args, aggregator, CancellationTokenSource).RunAsync();
decimal executionTime = 0;
//starting from 1 so that iteration number appears correctly in ETW log
for (int i = 1; i <= TestCase.Iterations; i++)
{
if (TestCase.CollectGargage)
{
GC.Collect();
GC.WaitForPendingFinalizers();
GC.Collect();
}
var stopwatchTracer = new StopwatchTracer();
BenchmarkEventSource.Log.BenchmarkIterationStart(i);
var invokerTime = await new BenchmarkTestInvoker(Test, MessageBus, TestClass, ConstructorArguments, TestMethod, hasTracerParam ? new object[] { stopwatchTracer } : null, aggregator, CancellationTokenSource).RunAsync();
BenchmarkEventSource.Log.BenchmarkIterationStop(i);
var stopwatchTime = stopwatchTracer.GetElapsed();
if (stopwatchTime.HasValue)
{
executionTime += stopwatchTime.Value;
}
else
{
executionTime += invokerTime;
}
}
var message = new DiagnosticMessage("{0} , Iterations : {1} , TotalMilliseconds : {2}", this.DisplayName, TestCase.Iterations, executionTime * 1000);
diagnosticMessageSink.OnMessage(message);
BenchmarkEventSource.Log.BenchmarkStop(this.DisplayName, TestCase.Iterations);
return(Tuple.Create(executionTime, string.Empty));
}
internal override async Task <object> Run(HttpContext context, Func <Type, object> resolve, TestTarget target)
{
var executeTestMethod = defaultExecuteTestMethod;
var methodParameters = TestMethod.GetParameters();
var queryParameters = context.Request.Query;
if (queryParameters.Keys.Any(p => methodParameters.Select(pp => pp.Name).Contains(p)))
{
executeTestMethod = BuildTestMethodExpression(
TestMethod,
methodParameters
.Select(p =>
{
var value = queryParameters[p.Name].FirstOrDefault() ??
p.DefaultValue;
try
{
object castedValue;
if (p.ParameterType.IsEnum && value != null)
{
castedValue = Enum.Parse(p.ParameterType, value.ToString(), true);
}
else
{
castedValue = Convert.ChangeType(value, p.ParameterType);
}
return(Expression.Constant(castedValue));
}
catch (FormatException e)
{
throw new ParameterFormatException(p.Name, p.ParameterType, e);
}
}));
}
var testClassInstance = (T)resolve(typeof(T));
switch (testClassInstance)
{
case IParameterizedTestCases parameterizedTest:
parameterizedTest.RegisterTestCasesTo(target.DependencyRegistry);
break;
}
return(executeTestMethod(testClassInstance));
}
/// <summary>
///
/// </summary>
/// <param name="testCase"></param>
/// <param name="displayName"></param>
/// <param name="skipReason"></param>
/// <param name="constructorArguments"></param>
/// <param name="testMethodArguments"></param>
/// <param name="messageBus"></param>
/// <param name="aggregator"></param>
/// <param name="cancellationTokenSource"></param>
public ScenarioTestCaseRunner(IXunitTestCase testCase, string displayName, string skipReason, object[] constructorArguments, object[] testMethodArguments, IMessageBus messageBus, ExceptionAggregator aggregator, CancellationTokenSource cancellationTokenSource)
: base(testCase, displayName, skipReason, constructorArguments, testMethodArguments, messageBus, aggregator, cancellationTokenSource)
{
DisplayName = displayName;
SkipReason = skipReason;
ConstructorArguments = constructorArguments;
TestClass = base.TestCase.TestMethod.TestClass.Class.ToRuntimeType();
TestMethod = base.TestCase.Method.ToRuntimeMethod();
ParameterInfo[] parameters = TestMethod.GetParameters();
Type[] parameterTypes = new Type[parameters.Length];
for (int i = 0; i < parameters.Length; i++)
{
parameterTypes[i] = parameters[i].ParameterType;
}
TestMethodArguments = Reflector.ConvertArguments(testMethodArguments, parameterTypes);
}
/// <inheritdoc/>
protected override async Task <decimal> InvokeTestMethodAsync(object testClassInstance)
{
var oldSyncContext = SynchronizationContext.Current;
try
{
var asyncSyncContext = new AsyncTestSyncContext(oldSyncContext);
SetSynchronizationContext(asyncSyncContext);
Exception testException = null;
await Aggregator.RunAsync(
() => Timer.AggregateAsync(
async() =>
{
var parameterCount = TestMethod.GetParameters().Length;
var valueCount = TestMethodArguments == null ? 0 : TestMethodArguments.Length;
if (parameterCount != valueCount)
{
Aggregator.Add(
new InvalidOperationException(
$"The test method expected {parameterCount} parameter value{(parameterCount == 1 ? "" : "s")}," +
$"but {valueCount} parameter value{(valueCount == 1 ? "" : "s")} {(valueCount == 1 ? "was" : "were")} provided.")
);
}
else
{
try {
var result = TestMethod.Invoke(testClassInstance, TestMethodArguments);
var task = result as Task;
if (task != null)
{
await task;
}
else
{
var ex = await asyncSyncContext.WaitForCompletionAsync();
if (ex != null)
{
testException = ex;
Aggregator.Add(ex);
}
}
} catch (Exception ex) {
testException = ex;
throw;
}
}
}
)
);
if (testException != null)
{
var handleTestFailure = testClassInstance as INeedToKnowTestFailure;
if (handleTestFailure != null)
{
await
Aggregator.RunAsync(
() => handleTestFailure.HandleFailureAsync(Test, testException));
}
}
}
finally
{
SetSynchronizationContext(oldSyncContext);
}
return(Timer.Total);
}
/// <summary>
/// Initializes a new instance of the <see cref="MettleTestCaseRunner"/> class.
/// </summary>
/// <param name="testCase">The test case to be run.</param>
/// <param name="displayName">The display name of the test case.</param>
/// <param name="skipReason">The skip reason, if the test is to be skipped.</param>
/// <param name="constructorArguments">The arguments to be passed to the test class constructor.</param>
/// <param name="testMethodArguments">The arguments to be passed to the test method.</param>
/// <param name="messageBus">The message bus to report run status to.</param>
/// <param name="aggregator">The exception aggregator used to run code and collect exceptions.</param>
/// <param name="cancellationTokenSource">The task cancellation token source, used to cancel the test run.</param>
public MettleTestCaseRunner(IXunitTestCase testCase,
string displayName,
string skipReason,
object[] constructorArguments,
object[] testMethodArguments,
IMessageBus messageBus,
ExceptionAggregator aggregator,
CancellationTokenSource cancellationTokenSource,
IServiceProvider serviceProvider)
: base(testCase, messageBus, aggregator, cancellationTokenSource)
{
DisplayName = displayName;
SkipReason = skipReason;
TestClass = TestCase.TestMethod.TestClass.Class.ToRuntimeType();
TestMethod = TestCase.Method.ToRuntimeMethod();
this.serviceProvider = serviceProvider;
var ctor = TestClass.GetConstructors().FirstOrDefault();
var parameters = ctor.GetParameters();
Type[] parameterTypes;
object[] args;
if (constructorArguments != null || constructorArguments.Length > 0)
{
parameterTypes = new Type[parameters.Length];
for (int i = 0; i < parameters.Length; i++)
{
parameterTypes[i] = parameters[i].ParameterType;
}
args = constructorArguments ?? Array.Empty <object>();
var ctorArgs = new object[parameters.Length];
Array.Copy(args, ctorArgs, args.Length);
for (int i = 0; i < parameters.Length; i++)
{
var obj = ctorArgs[i];
if (obj == null)
{
obj = this.serviceProvider?.GetService(parameters[i].ParameterType);
}
ctorArgs[i] = obj;
}
ConstructorArguments = Reflector.ConvertArguments(ctorArgs, parameterTypes);
}
else
{
ConstructorArguments = constructorArguments;
}
parameters = TestMethod.GetParameters();
parameterTypes = new Type[parameters.Length];
for (int i = 0; i < parameters.Length; i++)
{
parameterTypes[i] = parameters[i].ParameterType;
}
args = testMethodArguments ?? Array.Empty <object>();
if (parameters.Length != args.Length)
{
var methodArgs = new object[parameters.Length];
Array.Copy(args, methodArgs, args.Length);
for (var i = 0; i < parameters.Length; i++)
{
var obj = methodArgs[i];
if (obj == null)
{
obj = this.serviceProvider?.GetService(parameters[i].ParameterType);
}
methodArgs[i] = obj;
}
args = methodArgs;
}
TestMethodArguments = Reflector.ConvertArguments(args, parameterTypes);
}
