/// <summary>
/// Construct one or more TestMethods from a given MethodInfo,
/// using available parameter data.
/// </summary>
/// <param name="method">The MethodInfo for which tests are to be constructed.</param>
/// <param name="suite">The suite to which the tests will be added.</param>
/// <returns>One or more TestMethods</returns>
public IEnumerable<TestMethod> BuildFrom(IMethodInfo method, Test suite)
{
List<TestMethod> tests = new List<TestMethod>();
IParameterInfo[] parameters = method.GetParameters();
if (parameters.Length > 0)
{
IEnumerable[] sources = new IEnumerable[parameters.Length];
try
{
for (int i = 0; i < parameters.Length; i++)
sources[i] = _dataProvider.GetDataFor(parameters[i]);
}
catch (InvalidDataSourceException ex)
{
var parms = new TestCaseParameters();
parms.RunState = RunState.NotRunnable;
parms.Properties.Set(PropertyNames.SkipReason, ex.Message);
tests.Add(_builder.BuildTestMethod(method, suite, parms));
return tests;
}
foreach (var parms in _strategy.GetTestCases(sources))
tests.Add(_builder.BuildTestMethod(method, suite, (TestCaseParameters)parms));
}
return tests;
}
/// <summary>
/// Formulates the extended portion of the display name for a test method. For tests with no arguments, this will
/// return just the base name; for tests with arguments, attempts to format the arguments and appends the argument
/// list to the test name.
/// </summary>
/// <param name="method">The test method</param>
/// <param name="baseDisplayName">The base part of the display name</param>
/// <param name="arguments">The test method arguments</param>
/// <param name="genericTypes">The test method's generic types</param>
/// <returns>The full display name for the test method</returns>
public static string GetDisplayNameWithArguments(this IMethodInfo method, string baseDisplayName, object[] arguments, ITypeInfo[] genericTypes)
{
baseDisplayName += ResolveGenericDisplay(genericTypes);
if (arguments == null)
{
return(baseDisplayName);
}
var parameterInfos = method.GetParameters().CastOrToArray();
var displayValues = new string[Math.Max(arguments.Length, parameterInfos.Length)];
int idx;
for (idx = 0; idx < arguments.Length; idx++)
{
displayValues[idx] = ParameterToDisplayValue(GetParameterName(parameterInfos, idx), arguments[idx]);
}
for (; idx < parameterInfos.Length; idx++)
{
var reflectionParameterInfo = parameterInfos[idx] as IReflectionParameterInfo;
var parameterName = GetParameterName(parameterInfos, idx);
if (reflectionParameterInfo?.ParameterInfo.IsOptional ?? false)
{
displayValues[idx] = ParameterToDisplayValue(parameterName, reflectionParameterInfo.ParameterInfo.DefaultValue);
}
else
{
displayValues[idx] = parameterName + ": ???";
}
}
return($"{baseDisplayName}({string.Join(", ", displayValues)})");
}
/// <summary>
/// Construct one or more TestMethods from a given MethodInfo,
/// using available parameter data.
/// </summary>
/// <param name="method">The MethodInfo for which tests are to be constructed.</param>
/// <param name="suite">The suite to which the tests will be added.</param>
/// <returns>One or more TestMethods</returns>
public IEnumerable <TestMethod> BuildFrom(IMethodInfo method, Test suite)
{
List <TestMethod> tests = new List <TestMethod>();
IParameterInfo[] parameters = method.GetParameters();
if (parameters.Length > 0)
{
IEnumerable[] sources = new IEnumerable[parameters.Length];
try
{
for (int i = 0; i < parameters.Length; i++)
{
sources[i] = _dataProvider.GetDataFor(parameters[i]);
}
}
catch (InvalidDataSourceException ex)
{
var parms = new TestCaseParameters();
parms.RunState = RunState.NotRunnable;
parms.Properties.Set(PropertyNames.SkipReason, ex.Message);
tests.Add(_builder.BuildTestMethod(method, suite, parms));
return(tests);
}
foreach (var parms in _strategy.GetTestCases(sources))
{
tests.Add(_builder.BuildTestMethod(method, suite, (TestCaseParameters)parms));
}
}
return(tests);
}
public ScenarioInfo(IMethodInfo testMethod, object[] dataRow, string scenarioOutlineDisplayName)
{
var parameters = testMethod.GetParameters().ToList();
var typeParameters = testMethod.GetGenericArguments().ToList();
ITypeInfo[] typeArguments;
if (testMethod.IsGenericMethodDefinition)
{
typeArguments = typeParameters
.Select(typeParameter => InferTypeArgument(typeParameter.Name, parameters, dataRow))
.ToArray();
this.MethodToRun = testMethod.MakeGenericMethod(typeArguments).ToRuntimeMethod();
}
else
{
typeArguments = new ITypeInfo[0];
this.MethodToRun = testMethod.ToRuntimeMethod();
}
var passedArguments = Reflector.ConvertArguments(
dataRow, this.MethodToRun.GetParameters().Select(p => p.ParameterType).ToArray());
var generatedArguments = GetGeneratedArguments(
typeParameters, typeArguments, parameters, passedArguments.Length);
var arguments = passedArguments
.Select(value => new Argument(value))
.Concat(generatedArguments)
.ToList();
this.ScenarioDisplayName = GetScenarioDisplayName(scenarioOutlineDisplayName, typeArguments, parameters, arguments);
this.ConvertedDataRow = arguments.Select(argument => argument.Value).ToList();
}
public Test BuildFrom(IMethodInfo method, Test?parentSuite)
{
var tests = new List <TestMethod>();
List <ITestBuilder> builders = new List <ITestBuilder>(
method.GetCustomAttributes <ITestBuilder>(false));
// See if we need to add a CombinatorialAttribute for parameterized data
if (method.MethodInfo.GetParameters().Any(param => param.HasAttribute <IParameterDataSource>(false)) &&
!builders.Any(builder => builder is CombiningStrategyAttribute))
{
builders.Add(new CombinatorialAttribute());
}
foreach (var attr in builders)
{
foreach (var test in attr.BuildFrom(method, parentSuite))
{
tests.Add(test);
}
}
return(builders.Count > 0 && method.GetParameters().Length > 0 || tests.Count > 0
? BuildParameterizedMethodSuite(method, tests)
: BuildSingleTestMethod(method, parentSuite));
}
/// <summary>
/// Formulates the extended portion of the display name for a test method. For tests with no arguments, this will
/// return just the base name; for tests with arguments, attempts to format the arguments and appends the argument
/// list to the test name.
/// </summary>
/// <param name="method">The test method</param>
/// <param name="baseDisplayName">The base part of the display name</param>
/// <param name="arguments">The test method arguments</param>
/// <param name="genericTypes">The test method's generic types</param>
/// <returns>The full display name for the test method</returns>
public static string GetDisplayNameWithArguments(this IMethodInfo method, string baseDisplayName, object[] arguments, ITypeInfo[] genericTypes)
{
baseDisplayName += ResolveGenericDisplay(genericTypes);
if (arguments == null)
{
return(baseDisplayName);
}
var parameterInfos = method.GetParameters().CastOrToArray();
var displayValues = new string[Math.Max(arguments.Length, parameterInfos.Length)];
int idx;
for (idx = 0; idx < arguments.Length; idx++)
{
displayValues[idx] = ParameterToDisplayValue(GetParameterName(parameterInfos, idx), arguments[idx]);
}
for (; idx < parameterInfos.Length; idx++) // Fill-in any missing parameters with "???"
{
displayValues[idx] = GetParameterName(parameterInfos, idx) + ": ???";
}
return($"{baseDisplayName}({string.Join(", ", displayValues)})");
}
private IEnumerable <Func <Expression, string> > GetArgumentTranslators(
IMethodInfo method,
IEnumerable <Expression> arguments,
Func <Expression, string> defaultArgumentTranslator)
{
if (method == null)
{
return(arguments.Select(argument => defaultArgumentTranslator).ToArray());
}
var parameters = method.GetParameters();
if (method.IsExtensionMethod)
{
parameters = parameters.Skip(1).ToArray();
}
return(arguments
.Select((argument, i) =>
{
var parameter = parameters.ElementAtOrDefault(i);
if (IsNotFuncType(parameter, method))
{
return defaultArgumentTranslator;
}
return CanBeConvertedToMethodGroup(argument)
? MethodGroupTranslator
: defaultArgumentTranslator;
})
.ToArray());
}
IEnumerable <TestMethod> ITestBuilder.BuildFrom(IMethodInfo method, Test suite)
{
foreach (var p in GetCombination(method.GetParameters().Select(_ => _.ParameterType).ToArray()))
{
yield return(new NUnitTestCaseBuilder().BuildTestMethod(method, suite,
new TestCaseParameters(p)));
}
}
protected IEnumerable <TestCaseParameters> GetTestCases(IMethodInfo testMethodInfo)
{
var parameterType = testMethodInfo.GetParameters().First().ParameterType;
var method = Factory.GetProviderMethod(parameterType);
var testCases = method.Invoke(Factory.TestCaseProvider, null);
return(((IEnumerable <object>)testCases).Select(
s => new TestCaseParameters(new[] { s })));
}
public TestMethod BuildFrom(IMethodInfo method, NUnit.Framework.Internal.Test suite)
{
var defaultParameters = method.GetParameters().Select(
parameter => TypeUtils.defaultOf(parameter.ParameterType)).ToArray();
var parameters = new TestCaseParameters(defaultParameters);
if (method.ReturnType.Type != typeof(void))
{
parameters.ExpectedResult = null;
}
return(_builder.BuildTestMethod(method, suite, parameters));
}
private static TypeScriptReturnStatement GenerateMethodCallWithBody(IMethodInfo methodInfo, string methodName)
{
var routeTemplate = methodInfo.GetAttributes(TypeInfo.From <RouteAttribute>()).Single().GetValue("Template", "");
return(new TypeScriptReturnStatement(
new TypeScriptMethodCallExpression(
new TypeScriptThisReference(),
methodName,
new TypeScriptTemplateStringLiteral(routeTemplate.Replace("{", "${")),
GenerateConstructBody(methodInfo.GetParameters().ToArray(), routeTemplate)
)));
}
private static IEnumerable <Func <string, string> > GetParameterModifers(IMethodInfo method)
{
if (method == null)
{
return(Enumerable.Empty <Func <string, string> >());
}
return(method
.GetParameters()
.Select(GetParameterModifier)
.ToArray());
}
/// <summary>
/// Resolves all the generic types for a test method. The test parameters are used to determine
/// the best matching generic types for the test method that can be satisfied by all
/// the generic parameters and their values.
/// </summary>
/// <param name="method">The test method</param>
/// <param name="parameters">The parameter values being passed to the test method</param>
/// <returns>The best matching generic types</returns>
public static ITypeInfo[] ResolveGenericTypes(this IMethodInfo method, object[] parameters)
{
var genericTypes = method.GetGenericArguments().ToArray();
var resolvedTypes = new ITypeInfo[genericTypes.Length];
var parameterInfos = method.GetParameters().CastOrToArray();
for (var idx = 0; idx < genericTypes.Length; ++idx)
{
resolvedTypes[idx] = ResolveGenericType(genericTypes[idx], parameters, parameterInfos);
}
return(resolvedTypes);
}
private TestCaseParameters GetParametersForMethod(IMethodInfo method)
{
try
{
var parameterValues = this.CreateParameterValues(method.GetParameters());
return new TestCaseParameters(parameterValues);
}
catch (Exception ex)
{
return new TestCaseParameters(ex);
}
}
private static TypeScriptInterfaceFunctionMember BuildApiInterfaceMember(IMethodInfo methodInfo, Func <ITypeInfo, TypeScriptType> buildAndImportType)
{
var result = new TypeScriptInterfaceFunctionMember(methodInfo.Name.ToLowerCamelCase(), GetMethodResult(methodInfo, buildAndImportType));
result.Arguments.AddRange(
methodInfo.GetParameters().Select(x => new TypeScriptArgumentDeclaration
{
Name = x.Name,
Type = buildAndImportType(x.ParameterType)
})
);
return(result);
}
private TestCaseParameters GetParametersForMethod(IMethodInfo method)
{
try
{
var parameterValues = this.CreateParameterValues(method.GetParameters());
return(new TestCaseParameters(parameterValues));
}
catch (Exception ex)
{
return(new TestCaseParameters(ex));
}
}
/// <summary>
/// FOR INTERNAL USE ONLY.
/// </summary>
protected static ITypeInfo[] ResolveGenericTypes(IMethodInfo method, object[] parameters)
{
ITypeInfo[] genericTypes = method.GetGenericArguments().ToArray();
ITypeInfo[] resolvedTypes = new ITypeInfo[genericTypes.Length];
IParameterInfo[] parameterInfos = method.GetParameters().ToArray();
for (int idx = 0; idx < genericTypes.Length; ++idx)
{
resolvedTypes[idx] = ResolveGenericType(genericTypes[idx], parameters, parameterInfos);
}
return(resolvedTypes);
}
IEnumerable <TestMethod> BuildFrom(IMethodInfo method, Test suite, IScenario scenario)
{
var builder = new NUnitTestCaseBuilder();
var resolvedParameters = method.GetParameters()
.Select(p => scenario.DiContainer.TryResolve(p.ParameterType))
.ToArray();
var tcParams = new TestCaseParameters(resolvedParameters);
var testMethod = builder.BuildTestMethod(method, suite, tcParams);
testMethod.Properties.Add(ScenarioAdapter.ScreenplayScenarioKey, scenario);
return(new[] { testMethod });
}
private TestCaseParameters GetParametersForMethod(IMethodInfo method)
{
try
{
var parameters = method.GetParameters();
var parameterValues = this.GetParameterValues(parameters);
return(new TestCaseParameters(parameterValues.ToArray()));
}
catch (Exception ex)
{
return(new TestCaseParameters(ex));
}
}
private static TestCaseParameters GetParametersForMethod(IMethodInfo method, object[] args, int autoDataStartIndex)
{
var result = new TestCaseParameters(args);
EnsureOriginalArgumentsArrayIsNotShared(result);
var methodParameters = method.GetParameters();
for (int i = autoDataStartIndex; i < result.OriginalArguments.Length; i++)
{
result.OriginalArguments[i] = new TypeNameRenderer(methodParameters[i].ParameterType);
}
return(result);
}
private static TypeScriptReturnStatement GenerateGetMethodCall(IMethodInfo methodInfo)
{
var routeTemplate = methodInfo.GetAttributes(TypeInfo.From <RouteAttribute>()).Single().GetValue("Template", "");
return(new TypeScriptReturnStatement(
new TypeScriptMethodCallExpression(
new TypeScriptThisReference(),
"get",
new[]
{
new TypeScriptTemplateStringLiteral(routeTemplate.Replace("{", "${")),
GenerateConstructGetParams(methodInfo.GetParameters().ToArray(), routeTemplate)
}.Where(x => x != null).ToArray()
)));
}
private TestCaseParameters GetParametersForMethod(IMethodInfo method)
{
try
{
var specimenBuilder = new SpecimenContext(this._fixture);
var parameterValues = method.GetParameters()
.Select(p => specimenBuilder.Resolve(p.ParameterInfo))
.ToArray();
return new TestCaseParameters(parameterValues);
}
catch (Exception ex)
{
return new TestCaseParameters(ex);
}
}
private TypeScriptReturnStatement GenerateMethodCallWithBody(IMethodInfo methodInfo, string methodName, ITypeInfo controllerType)
{
var route = BuildRoute(controllerType, methodInfo);
return new TypeScriptReturnStatement(
new TypeScriptMethodCallExpression(
new TypeScriptThisReference(),
methodName,
new TypeScriptTemplateStringLiteral(route.Replace("{", "${")),
GenerateConstructGetParams(
GetQueryParameters(methodInfo.GetParameters(), controllerType),
route
),
GetBodyExpression(methodInfo, methodName, controllerType)
));
}
private TestCaseParameters GetParametersForMethod(IMethodInfo method)
{
try
{
var specimenBuilder = new SpecimenContext(this._fixture);
var parameterValues = method.GetParameters()
.Select(p => specimenBuilder.Resolve(p.ParameterInfo))
.ToArray();
return(new TestCaseParameters(parameterValues));
}
catch (Exception ex)
{
return(new TestCaseParameters(ex));
}
}
internal MethodEmitter(AbstractTypeEmitter owner, String name,
MethodAttributes attributes, IMethodInfo methodToUseAsATemplate)
: this(owner, name, attributes)
{
var name2GenericType = GenericUtil.GetGenericArgumentsMap(owner);
var returnType = GenericUtil.ExtractCorrectType(methodToUseAsATemplate.ReturnType, name2GenericType);
var baseMethodParameters = methodToUseAsATemplate.GetParameters();
var parameters = GenericUtil.ExtractParametersTypes(baseMethodParameters, name2GenericType);
genericTypeParams = GenericUtil.CopyGenericArguments(methodToUseAsATemplate, builder, name2GenericType);
SetParameters(parameters);
SetReturnType(returnType);
SetSignature(returnType, methodToUseAsATemplate.ReturnParameter, parameters, baseMethodParameters);
DefineParameters(baseMethodParameters);
}
internal MethodEmitter(AbstractTypeEmitter owner, String name,
MethodAttributes attributes, IMethodInfo methodToUseAsATemplate)
: this(owner, name, attributes)
{
var name2GenericType = GenericUtil.GetGenericArgumentsMap(owner);
var returnType = GenericUtil.ExtractCorrectType(methodToUseAsATemplate.ReturnType, name2GenericType);
var baseMethodParameters = methodToUseAsATemplate.GetParameters();
var parameters = GenericUtil.ExtractParametersTypes(baseMethodParameters, name2GenericType);
genericTypeParams = GenericUtil.CopyGenericArguments(methodToUseAsATemplate, builder, name2GenericType);
SetParameters(parameters);
SetReturnType(returnType);
SetSignature(returnType, methodToUseAsATemplate.ReturnParameter, parameters, baseMethodParameters);
DefineParameters(baseMethodParameters);
}
/// <summary>
/// Builds the parameters
/// </summary>
protected virtual TestCaseParameters GetParametersForTestCase(IMethodInfo method)
{
TestCaseParameters parms;
try
{
IParameterInfo[] parameters = method.GetParameters();
parms = GetParametersForTestCaseHelper(parameters, method);
}
catch (Exception ex)
{
parms = new TestCaseParameters(ex);
}
return(parms);
}
private IEnumerable<TypeScriptInterfaceFunctionMember> BuildApiInterfaceMember(IMethodInfo methodInfo, Func<ITypeInfo, TypeScriptType> buildAndImportType, ITypeInfo controllerType)
{
var result = new TypeScriptInterfaceFunctionMember(
methodInfo.Name.ToLowerCamelCase(),
GetMethodResult(methodInfo, buildAndImportType)
);
result.Arguments.AddRange(
methodInfo.GetParameters()
.Where(x => PassParameterToCall(x, controllerType))
.Select(x => new TypeScriptArgumentDeclaration
{
Name = x.Name,
Type = buildAndImportType(x.ParameterType)
})
);
yield return result;
}
/// <summary>
/// Construct one or more TestMethods from a given MethodInfo,
/// using available parameter data.
/// </summary>
/// <param name="method">The MethodInfo for which tests are to be constructed.</param>
/// <param name="suite">The suite to which the tests will be added.</param>
/// <returns>One or more TestMethods</returns>
public IEnumerable<TestMethod> BuildFrom(IMethodInfo method, Internal.Test suite)
{
IParameterInfo[] parameters = method.GetParameters();
List<TestMethod> tests = new List<TestMethod>();
if (parameters.Length > 0)
{
IEnumerable[] sources = new IEnumerable[parameters.Length];
for (int i = 0; i < parameters.Length; i++)
sources[i] = _dataProvider.GetDataFor(parameters[i]);
foreach (var parms in new CombinatorialStrategy().GetTestCases(sources))
tests.Add(_builder.BuildTestMethod(method, suite, (TestCaseParameters)parms));
}
return tests;
}
/// <summary>
/// Builds the parameters
/// </summary>
protected override TestCaseParameters GetParametersForTestCase(IMethodInfo method)
{
TestCaseParameters parms;
try
{
var parameterlist = method.GetParameters().ToList();
parameterlist.RemoveAt(0);
IParameterInfo[] parameters = parameterlist.ToArray();
parms = GetParametersForTestCaseHelper(parameters, method);
}
catch (Exception ex)
{
parms = new TestCaseParameters(ex);
}
return(parms);
}
/// <summary>
/// Build a Test from the provided MethodInfo. Depending on
/// whether the method takes arguments and on the availability
/// of test case data, this method may return a single test
/// or a group of tests contained in a ParameterizedMethodSuite.
/// </summary>
/// <param name="method">The method for which a test is to be built</param>
/// <param name="parentSuite">The test fixture being populated, or null</param>
/// <returns>A Test representing one or more method invocations</returns>
public Test BuildFrom(IMethodInfo method, Test parentSuite)
{
var tests = new List <TestMethod>();
List <ITestBuilder> builders = new List <ITestBuilder>(
method.GetCustomAttributes <ITestBuilder>(false));
// See if we need a CombinatorialAttribute added
bool needCombinatorial = true;
foreach (var attr in builders)
{
if (attr is CombiningStrategyAttribute)
{
needCombinatorial = false;
}
}
// This check must be done before CombinatorialAttribute gets added to the builders collection
var hasBuildersSpecified = builders.Count > 0;
// We could check to see if here are any data attributes specified
// on the parameters but that's what CombinatorialAttribute does
// and it simply won't return any cases if it finds nothing.
// TODO: We need to add some other ITestBuilder than a combinatorial attribute
// because we want the attribute to generate an error if it's present on
// a generic method.
if (needCombinatorial)
{
builders.Add(new CombinatorialAttribute());
}
foreach (var attr in builders)
{
foreach (var test in attr.BuildFrom(method, parentSuite))
{
tests.Add(test);
}
}
return(hasBuildersSpecified && method.GetParameters().Length > 0 || tests.Count > 0
? BuildParameterizedMethodSuite(method, tests)
: BuildSingleTestMethod(method, parentSuite));
}
public static string GetDisplayNameWithArguments(IMethodInfo method, string baseDisplayName, object[] arguments, ITypeInfo[] genericTypes)
{
baseDisplayName += ResolveGenericDisplay(genericTypes);
if (arguments == null)
return baseDisplayName;
var parameterInfos = method.GetParameters().ToArray();
var displayValues = new string[Math.Max(arguments.Length, parameterInfos.Length)];
int idx;
for (idx = 0; idx < arguments.Length; idx++)
displayValues[idx] = ParameterToDisplayValue(GetParameterName(parameterInfos, idx), arguments[idx]);
for (; idx < parameterInfos.Length; idx++) // Fill-in any missing parameters with "???"
displayValues[idx] = GetParameterName(parameterInfos, idx) + ": ???";
return String.Format(CultureInfo.CurrentCulture, "{0}({1})", baseDisplayName, string.Join(", ", displayValues));
}
public ScenarioInfo(IMethodInfo testMethod, object[] actualArgs, string scenarioOutlineDisplayName)
{
//Guard.AgainstNullArgument(nameof(testMethod), testMethod);
#if DEBUG
testMethod = testMethod.RequiresNotNull(nameof(testMethod));
#endif
// Which, we "do", in DEBUG mode.
#pragma warning disable CA1062 // ...validate parameter 'name' is non-null before using it...
var parameters = testMethod.GetParameters().ToList();
#pragma warning restore CA1062 // ...validate parameter 'name' is non-null before using it...
var typeParams = testMethod.GetGenericArguments().ToList();
ITypeInfo[] typeArgs;
if (testMethod.IsGenericMethodDefinition)
{
typeArgs = typeParams
.Select(typeParameter => InferTypeArgument(typeParameter.Name, parameters, actualArgs))
.ToArray();
this.MethodToRun = testMethod.MakeGenericMethod(typeArgs).ToRuntimeMethod();
}
else
{
typeArgs = Array.Empty <ITypeInfo>();
this.MethodToRun = testMethod.ToRuntimeMethod();
}
var passedArgs = Reflector.ConvertArguments(actualArgs, this.MethodToRun.GetParameters().Select(p => p.ParameterType).ToArray());
var generatedArguments = GetGeneratedArguments(typeParams, typeArgs, parameters, passedArgs.Length);
var args = passedArgs
.Select(value => new Argument(value))
.Concat(generatedArguments)
.ToList();
this.ScenarioDisplayName = GetScenarioDisplayName(scenarioOutlineDisplayName, typeArgs, parameters, args);
this.ConvertedActualArgs = args.Select(arg => arg.Value).ToList();
}
IEnumerable <TestMethod> ITestBuilder.BuildFrom(IMethodInfo method, Test suite)
{
// If the system doesn't support exceptions (Unity editor for delegates) we should not test with exceptions
bool skipTest = (ExpectCompilerException || ExpectedException != null) && !SupportException;
var expectResult = !method.ReturnType.IsType(typeof(void));
var name = method.Name;
var arguments = this.Arguments;
var permutations = CreatePermutation(0, arguments, method.GetParameters());
// TODO: Workaround for a scalability bug with R# or Rider
// Run only one testcase if not running from the commandline
if (!IsCommandLine())
{
permutations = permutations.Take(1);
}
foreach (var newArguments in permutations)
{
var caseParameters = new TestCaseParameters(newArguments);
if (expectResult)
{
caseParameters.ExpectedResult = true;
if (OverrideResultOnMono != null && IsMono())
{
caseParameters.Properties.Set(nameof(OverrideResultOnMono), OverrideResultOnMono);
}
}
// Transfer FastMath parameter to the compiler
caseParameters.Properties.Set(nameof(FastMath), FastMath);
var test = _builder.BuildTestMethod(method, suite, caseParameters);
if (skipTest)
{
test.RunState = RunState.Skipped;
test.Properties.Add(PropertyNames.SkipReason, "Exceptions are not supported");
}
yield return(test);
}
}
public IEnumerable <TestMethod> BuildFrom(IMethodInfo method, Test?suite)
{
int count = 0;
foreach (TestCaseParameters parms in GetTestCasesFor(method))
{
count++;
yield return(_builder.BuildTestMethod(method, suite, parms));
}
// If count > 0, error messages will be shown for each case
// but if it's 0, we need to add an extra "test" to show the message.
if (count == 0 && method.GetParameters().Length == 0)
{
var parms = new TestCaseParameters();
parms.RunState = RunState.NotRunnable;
parms.Properties.Set(PropertyNames.SkipReason, "TestCaseSourceAttribute may not be used on a method without parameters");
yield return(_builder.BuildTestMethod(method, suite, parms));
}
}
public static void CopyOutAndRefParameters(TypeReference[] dereferencedArguments, LocalReference invocation,
IMethodInfo method, MethodEmitter emitter)
{
var parameters = method.GetParameters();
if (!ArgumentsUtil.IsAnyByRef(parameters))
{
return; //saving the need to create locals if there is no need
}
var arguments = StoreInvocationArgumentsInLocal(emitter, invocation);
for (var i = 0; i < parameters.Length; i++)
{
if (!parameters[i].ParameterType.IsByRef)
{
continue;
}
emitter.CodeBuilder.AddStatement(AssignArgument(dereferencedArguments, i, arguments));
}
}
private static TypeScriptClassMemberDefinition BuildApiImplMember(IMethodInfo methodInfo, Func <ITypeInfo, TypeScriptType> buildAndImportType)
{
var functionDefinition = new TypeScriptFunctionDefinition
{
IsAsync = true,
Result = GetMethodResult(methodInfo, buildAndImportType),
Body = { CreateCall(methodInfo) }
};
functionDefinition.Arguments.AddRange(
methodInfo.GetParameters().Select(x => new TypeScriptArgumentDeclaration
{
Name = x.Name,
Type = buildAndImportType(x.ParameterType)
})
);
return(new TypeScriptClassMemberDefinition
{
Name = methodInfo.Name.ToLowerCamelCase(),
Definition = functionDefinition
});
}
/// <inheritdoc/>
public virtual IEnumerable<object[]> GetData(IAttributeInfo dataAttribute, IMethodInfo testMethod)
{
// The data from GetConstructorArguments does not maintain its original form (in particular, collections
// end up as generic IEnumerable<T>). So we end up needing to call .ToArray() on the enumerable so that
// we can restore the correct argument type from InlineDataAttribute.
//
// In addition, [InlineData(null)] gets translated into passing a null array, not a single array with a null
// value in it, which is why the null coalesce operator is required (this is covered by the acceptance test
// in Xunit2TheoryAcceptanceTests.InlineDataTests.SingleNullValuesWork).
var count = testMethod.GetParameters().Count();
var arguments = dataAttribute.GetConstructorArguments();
var args = (IEnumerable<object>)arguments.Single() ?? new object[] { null };
var objects = args.ToArray();
var results = objects.Select(x => Enumerable.Empty<object>().Concat(new[] { x }));
while (--count > 0)
{
results = results.Join(objects, o => true, o => true, (enumerable, item) => enumerable.Concat(new[] { item }).ToArray());
}
var array = results.Select(x => x.ToArray()).ToArray();
return array;
}
private TestCaseParameters GetParametersForTestCase(IMethodInfo method)
{
TestCaseParameters parms;
try
{
#if NETCF
var tmethod = method.MakeGenericMethodEx(Arguments);
if (tmethod == null)
throw new NotSupportedException("Cannot determine generic types from probing");
method = tmethod;
#endif
IParameterInfo[] parameters = method.GetParameters();
int argsNeeded = parameters.Length;
int argsProvided = Arguments.Length;
parms = new TestCaseParameters(this);
parms.Arguments = new object[] { 1, 1, 1 };
if (argsProvided == argsNeeded)
PerformSpecialConversions(parms.Arguments, parameters);
}
catch (Exception ex)
{
parms = new TestCaseParameters(ex);
}
return parms;
}
private TestCaseParameters GetParametersForTestCase(IMethodInfo method)
{
TestCaseParameters parms;
try
{
IParameterInfo[] parameters = method.GetParameters();
int argsNeeded = parameters.Length;
int argsProvided = Arguments.Length;
parms = new TestCaseParameters(this);
// Special handling for params arguments
if (argsNeeded > 0 && argsProvided >= argsNeeded - 1)
{
IParameterInfo lastParameter = parameters[argsNeeded - 1];
Type lastParameterType = lastParameter.ParameterType;
Type elementType = lastParameterType.GetElementType();
if (lastParameterType.IsArray && lastParameter.IsDefined<ParamArrayAttribute>(false))
{
if (argsProvided == argsNeeded)
{
Type lastArgumentType = parms.Arguments[argsProvided - 1].GetType();
if (!lastParameterType.GetTypeInfo().IsAssignableFrom(lastArgumentType.GetTypeInfo()))
{
Array array = Array.CreateInstance(elementType, 1);
array.SetValue(parms.Arguments[argsProvided - 1], 0);
parms.Arguments[argsProvided - 1] = array;
}
}
else
{
object[] newArglist = new object[argsNeeded];
for (int i = 0; i < argsNeeded && i < argsProvided; i++)
newArglist[i] = parms.Arguments[i];
int length = argsProvided - argsNeeded + 1;
Array array = Array.CreateInstance(elementType, length);
for (int i = 0; i < length; i++)
array.SetValue(parms.Arguments[argsNeeded + i - 1], i);
newArglist[argsNeeded - 1] = array;
parms.Arguments = newArglist;
argsProvided = argsNeeded;
}
}
}
//Special handling for optional parameters
if (parms.Arguments.Length < argsNeeded)
{
object[] newArgList = new object[parameters.Length];
Array.Copy(parms.Arguments, newArgList, parms.Arguments.Length);
//Fill with Type.Missing for remaining required parameters where optional
for (var i = parms.Arguments.Length; i < parameters.Length; i++)
{
if (parameters[i].IsOptional)
newArgList[i] = Type.Missing;
else
{
if (i < parms.Arguments.Length)
newArgList[i] = parms.Arguments[i];
else
throw new TargetParameterCountException(string.Format(
"Method requires {0} arguments but TestCaseAttribute only supplied {1}",
argsNeeded,
argsProvided));
}
}
parms.Arguments = newArgList;
}
//if (method.GetParameters().Length == 1 && method.GetParameters()[0].ParameterType == typeof(object[]))
// parms.Arguments = new object[]{parms.Arguments};
// Special handling when sole argument is an object[]
if (argsNeeded == 1 && method.GetParameters()[0].ParameterType == typeof(object[]))
{
if (argsProvided > 1 ||
argsProvided == 1 && parms.Arguments[0].GetType() != typeof(object[]))
{
parms.Arguments = new object[] { parms.Arguments };
}
}
if (argsProvided == argsNeeded)
PerformSpecialConversions(parms.Arguments, parameters);
}
catch (Exception ex)
{
parms = new TestCaseParameters(ex);
}
return parms;
}
/// <summary>
/// Construct one or more TestMethods from a given MethodInfo,
/// using available parameter data.
/// </summary>
/// <param name="method">The MethodInfo for which tests are to be constructed.</param>
/// <param name="suite">The suite to which the tests will be added.</param>
/// <returns>One or more TestMethods</returns>
public IEnumerable<TestMethod> BuildFrom(IMethodInfo method, Test suite)
{
List<TestMethod> tests = new List<TestMethod>();
#if NETCF
if (method.ContainsGenericParameters)
{
var genericParams = method.GetGenericArguments();
var numGenericParams = genericParams.Length;
var o = new object();
var tryArgs = Enumerable.Repeat(o, numGenericParams).ToArray();
IMethodInfo mi;
try
{
// This fails if the generic method has constraints
// that are not met by object.
mi = method.MakeGenericMethodEx(tryArgs);
if (mi == null)
return tests;
}
catch
{
return tests;
}
var par = mi.GetParameters();
if (par.Length == 0)
return tests;
var sourceData = par.Select(p => _dataProvider.GetDataFor(p)).ToArray();
foreach (var parms in _strategy.GetTestCases(sourceData))
{
mi = method.MakeGenericMethodEx(parms.Arguments);
if (mi == null)
{
var tm = new TestMethod(method, suite);
tm.RunState = RunState.NotRunnable;
tm.Properties.Set(PropertyNames.SkipReason, "Incompatible arguments");
tests.Add(tm);
}
else
tests.Add(_builder.BuildTestMethod(mi, suite, (TestCaseParameters)parms));
}
return tests;
}
#endif
IParameterInfo[] parameters = method.GetParameters();
if (parameters.Length > 0)
{
IEnumerable[] sources = new IEnumerable[parameters.Length];
try
{
for (int i = 0; i < parameters.Length; i++)
sources[i] = _dataProvider.GetDataFor(parameters[i]);
}
catch (InvalidDataSourceException ex)
{
var parms = new TestCaseParameters();
parms.RunState = RunState.NotRunnable;
parms.Properties.Set(PropertyNames.SkipReason, ex.Message);
tests.Add(_builder.BuildTestMethod(method, suite, parms));
return tests;
}
foreach (var parms in _strategy.GetTestCases(sources))
tests.Add(_builder.BuildTestMethod(method, suite, (TestCaseParameters)parms));
}
return tests;
}
private TestCaseParameters GetParametersForTestCase(IMethodInfo method)
{
TestCaseParameters parms;
try
{
#if NETCF
var tmethod = method.MakeGenericMethodEx(Arguments);
if (tmethod == null)
throw new NotSupportedException("Cannot determine generic types from probing");
method = tmethod;
#endif
IParameterInfo[] parameters = method.GetParameters();
int argsNeeded = parameters.Length;
int argsProvided = Arguments.Length;
parms = new TestCaseParameters(this);
// Special handling for params arguments
if (argsNeeded > 0 && argsProvided >= argsNeeded - 1)
{
IParameterInfo lastParameter = parameters[argsNeeded - 1];
Type lastParameterType = lastParameter.ParameterType;
Type elementType = lastParameterType.GetElementType();
if (lastParameterType.IsArray && lastParameter.IsDefined<ParamArrayAttribute>(false))
{
if (argsProvided == argsNeeded)
{
Type lastArgumentType = parms.Arguments[argsProvided - 1].GetType();
if (!lastParameterType.IsAssignableFrom(lastArgumentType))
{
Array array = Array.CreateInstance(elementType, 1);
array.SetValue(parms.Arguments[argsProvided - 1], 0);
parms.Arguments[argsProvided - 1] = array;
}
}
else
{
object[] newArglist = new object[argsNeeded];
for (int i = 0; i < argsNeeded && i < argsProvided; i++)
newArglist[i] = parms.Arguments[i];
int length = argsProvided - argsNeeded + 1;
Array array = Array.CreateInstance(elementType, length);
for (int i = 0; i < length; i++)
array.SetValue(parms.Arguments[argsNeeded + i - 1], i);
newArglist[argsNeeded - 1] = array;
parms.Arguments = newArglist;
argsProvided = argsNeeded;
}
}
}
//if (method.GetParameters().Length == 1 && method.GetParameters()[0].ParameterType == typeof(object[]))
// parms.Arguments = new object[]{parms.Arguments};
// Special handling when sole argument is an object[]
if (argsNeeded == 1 && method.GetParameters()[0].ParameterType == typeof(object[]))
{
if (argsProvided > 1 ||
argsProvided == 1 && parms.Arguments[0].GetType() != typeof(object[]))
{
parms.Arguments = new object[] { parms.Arguments };
}
}
if (argsProvided == argsNeeded)
PerformSpecialConversions(parms.Arguments, parameters);
}
catch (Exception ex)
{
parms = new TestCaseParameters(ex);
}
return parms;
}
/// <summary>
/// Returns a set of ITestCaseDataItems for use as arguments
/// to a parameterized test method.
/// </summary>
/// <param name="method">The method for which data is needed.</param>
/// <returns></returns>
private IEnumerable<ITestCaseData> GetTestCasesFor(IMethodInfo method)
{
List<ITestCaseData> data = new List<ITestCaseData>();
try
{
IEnumerable source = GetTestCaseSource(method);
if (source != null)
{
foreach (object item in source)
{
// First handle two easy cases:
// 1. Source is null. This is really an error but if we
// throw an exception we simply get an invalid fixture
// without good info as to what caused it. Passing a
// single null argument will cause an error to be
// reported at the test level, in most cases.
// 2. User provided an ITestCaseData and we just use it.
ITestCaseData parms = item == null
? new TestCaseParameters(new object[] { null })
: item as ITestCaseData;
if (parms == null)
{
// 3. An array was passed, it may be an object[]
// or possibly some other kind of array, which
// TestCaseSource can accept.
var args = item as object[];
if (args == null && item is Array)
{
Array array = item as Array;
#if NETCF
bool netcfOpenType = method.IsGenericMethodDefinition;
#else
bool netcfOpenType = false;
#endif
int numParameters = netcfOpenType ? array.Length : method.GetParameters().Length;
if (array != null && array.Rank == 1 && array.Length == numParameters)
{
// Array is something like int[] - convert it to
// an object[] for use as the argument array.
args = new object[array.Length];
for (int i = 0; i < array.Length; i++)
args[i] = array.GetValue(i);
}
}
// Check again if we have an object[]
if (args != null)
{
#if NETCF
if (method.IsGenericMethodDefinition)
{
var mi = method.MakeGenericMethodEx(args);
if (mi == null)
throw new NotSupportedException("Cannot determine generic Type");
method = mi;
}
#endif
var parameters = method.GetParameters();
var argsNeeded = parameters.Length;
var argsProvided = args.Length;
// If only one argument is needed, our array may actually
// be the bare argument. If it is, we should wrap it in
// an outer object[] representing the list of arguments.
if (argsNeeded == 1)
{
var singleParmType = parameters[0].ParameterType;
if (argsProvided == 0 || typeof(object[]).IsAssignableFrom(singleParmType))
{
if (argsProvided > 1 || singleParmType.IsAssignableFrom(args.GetType()))
{
args = new object[] { item };
}
}
}
}
else // It may be a scalar or a multi-dimensioned array. Wrap it in object[]
{
args = new object[] { item };
}
parms = new TestCaseParameters(args);
}
if (this.Category != null)
foreach (string cat in this.Category.Split(new char[] { ',' }))
parms.Properties.Add(PropertyNames.Category, cat);
data.Add(parms);
}
}
}
catch (Exception ex)
{
data.Clear();
data.Add(new TestCaseParameters(ex));
}
return data;
}
/// <summary>
/// FOR INTERNAL USE ONLY.
/// </summary>
protected static ITypeInfo[] ResolveGenericTypes(IMethodInfo method, object[] parameters)
{
ITypeInfo[] genericTypes = method.GetGenericArguments().ToArray();
ITypeInfo[] resolvedTypes = new ITypeInfo[genericTypes.Length];
IParameterInfo[] parameterInfos = method.GetParameters().ToArray();
for (int idx = 0; idx < genericTypes.Length; ++idx)
resolvedTypes[idx] = ResolveGenericType(genericTypes[idx], parameters, parameterInfos);
return resolvedTypes;
}
private FuzzyMethod(FuzzyType target, IMethodInfo runtimeMethod)
{
_method = runtimeMethod;
var genericArgs = new List<FuzzyType>();
foreach (var genericArg in _method.GetMethodGenericArguments())
genericArgs.Add(FuzzyType.FromRuntimeType(genericArg));
GenericArguments = genericArgs.AsReadOnly();
Target = target;
ReturnValue = FuzzyType.FromRuntimeType(_method.ReturnType);
Args = _method.GetParameters()
.Select(param => FuzzyType.FromRuntimeType(param.ParameterType))
.ToArray();
// establishing links between typedef generic args and method's generic args
// read more comments at FuzzyType.GetFieldOrProperty
// see also comments to ReflectionHelper.GetGenericArgsMapping
foreach (var pair in _method.GetGenericArgsMapping())
{
var typeDefArg = SelectGenericArg(pair.Value);
var publicTypePointArgs = SelectGenericArg(pair.Key);
publicTypePointArgs.IsIdenticalTo(typeDefArg);
}
// SomeMoreStuffInferred handlers for children just escalate the event
// no need to process it since everything necessary is already done by links
//
// upd. currently noone cares about this event from this very class,
// but imo it's still important to comply to FuzzyMetadata contract
Target.SomeMoreStuffInferred += (o, e) => FireSomeMoreStuffInferred();
ReturnValue.SomeMoreStuffInferred += (o, e) => FireSomeMoreStuffInferred();
Args.ForEach(arg => arg.SomeMoreStuffInferred += (o, e) => FireSomeMoreStuffInferred());
// Register typepoints for debug -> 0 downtime in release, but immensely useful in debug mode
var methodBinding = target.DebuggableParents.OfType<FuzzyMethodBinding>().SingleOrDefault();
if (methodBinding != null)
{
this.RegDebuggableParent(methodBinding).SetDesc("alt");
ReturnValue.RegDebuggableParent(this).SetDesc("ret");
Args.ForEach((arg, i) => arg.RegDebuggableParent(this).SetDesc("arg" + i));
}
}
/// <summary>
/// Returns a set of ITestCaseDataItems for use as arguments
/// to a parameterized test method.
/// </summary>
/// <param name="method">The method for which data is needed.</param>
/// <returns></returns>
private IEnumerable<ITestCaseData> GetTestCasesFor(IMethodInfo method)
{
List<ITestCaseData> data = new List<ITestCaseData>();
try
{
IEnumerable source = GetTestCaseSource(method);
if (source != null)
{
#if NETCF
int numParameters = method.IsGenericMethodDefinition ? 0 : method.GetParameters().Length;
#else
int numParameters = method.GetParameters().Length;
#endif
foreach (object item in source)
{
var parms = item as ITestCaseData;
if (parms == null)
{
object[] args = item as object[];
if (args != null)
{
#if NETCF
if (method.IsGenericMethodDefinition)
{
var mi = method.MakeGenericMethodEx(args);
numParameters = mi == null ? 0 : mi.GetParameters().Length;
}
#endif
if (args.Length != numParameters)//parameters.Length)
args = new object[] { item };
}
else if (item is Array)
{
Array array = item as Array;
#if NETCF
if (array.Rank == 1 && (method.IsGenericMethodDefinition || array.Length == numParameters))//parameters.Length))
#else
if (array.Rank == 1 && array.Length == numParameters)//parameters.Length)
#endif
{
args = new object[array.Length];
for (int i = 0; i < array.Length; i++)
args[i] = array.GetValue(i);
#if NETCF
if (method.IsGenericMethodDefinition)
{
var mi = method.MakeGenericMethodEx(args);
if (mi == null || array.Length != mi.GetParameters().Length)
args = new object[] {item};
}
#endif
}
else
{
args = new object[] { item };
}
}
else
{
args = new object[] { item };
}
parms = new TestCaseParameters(args);
}
if (this.Category != null)
foreach (string cat in this.Category.Split(new char[] { ',' }))
parms.Properties.Add(PropertyNames.Category, cat);
data.Add(parms);
}
}
}
catch (Exception ex)
{
data.Clear();
data.Add(new TestCaseParameters(ex));
}
return data;
}