public void Accepts_ReturnsTrue()
{
var subject = new AllowAllModuleFilter();
Assert.IsTrue(subject.Accepts(null));
Assert.IsTrue(subject.Accepts(CecilUtility.Import(typeof(object)).Resolve().Module));
}
public void GetParameters_InstructionsThatReadParameters_ReturnsParameters()
{
MethodReference method = CecilUtility.Import(() => string.Format("Test", 12));
var instructions = new[]
{
Instruction.Create(OpCodes.Ldarg_1),
Instruction.Create(OpCodes.Ldarg_0)
};
Parameter parameter = new Parameter(CecilUtility.Import(typeof(string)), 0);
_instructionHelperMock
.Setup(helper => helper.ReadsParameter(method, instructions[0], out parameter))
.Returns(true);
Parameter parameter2 = new Parameter(CecilUtility.Import(typeof(int)), 1);
_instructionHelperMock
.Setup(helper => helper.ReadsParameter(method, instructions[1], out parameter2))
.Returns(true);
var subject = new ParameterDeducer(_instructionHelperMock.Object);
TypeReference[] result = subject.GetParameters(method, instructions);
Assert.AreEqual(2, result.Length);
Assert.AreEqual(parameter.ParameterType, result[0]);
Assert.AreEqual(parameter2.ParameterType, result[1]);
}
static int Run(Options options)
{
var module1 = CecilUtility.ReadModule(options.File1);
var module2 = CecilUtility.ReadModule(options.File2);
FacadeModuleProcessor.MakePublicFacade(module1, options.IncludeInternals);
FacadeModuleProcessor.MakePublicFacade(module2, options.IncludeInternals);
var changes = ApiDiff.FindChanges(module1, module2);
if (changes.Count == 0)
{
Console.WriteLine("No changes");
}
foreach (var changeGroup in changes.GroupBy(x => x.IsBreaking))
{
Console.WriteLine("{0} changes:", changeGroup.Key ? "Breaking" : "Non-breaking");
foreach (var change in changeGroup)
{
Console.WriteLine(change.Message);
}
Console.WriteLine();
}
return(0);
}
public void TestFindChanges()
{
var directory = Path.GetDirectoryName(typeof(ApiDiffTest).Assembly.Location);
var module1 = CecilUtility.ReadModule(Path.Combine(directory, "TestLibrary.V1.dll"));
var module2 = CecilUtility.ReadModule(Path.Combine(directory, "TestLibrary.V2.dll"));
FacadeModuleProcessor.MakePublicFacade(module1, false);
FacadeModuleProcessor.MakePublicFacade(module2, false);
var changes = ApiDiff.FindChanges(module1, module2);
var diff = NormalizeDiff(changes.Select(change => $"{(change.IsBreaking ? "B" : "N")} {change.Message}"));
var expectedDiff = NormalizeDiff(File.ReadAllLines(Path.Join(directory, "expected-diff.txt")));
var falseNegatives = diff.Except(expectedDiff).ToList();
if (falseNegatives.Count != 0)
{
Console.WriteLine("false positives:");
Console.Write(string.Join(Environment.NewLine, falseNegatives));
Console.WriteLine();
}
var falsePositives = expectedDiff.Except(diff).ToList();
if (falsePositives.Count != 0)
{
Console.WriteLine("false negatives:");
Console.Write(string.Join(Environment.NewLine, falsePositives));
Console.WriteLine();
}
CollectionAssert.AreEqual(expectedDiff, diff);
}
public void Constructor_ModuleComparerNull_ThrowsArgumentNullException()
{
var module = CecilUtility.Import(typeof(object)).Resolve().Module;
var exception = Assert.Throws <ArgumentNullException>(
() => new DependencyGraphNode(module, null));
Assert.AreEqual("moduleComparer", exception.ParamName);
}
public void GetParameters_EmptyInstructions_EmptyResult()
{
MethodReference method = CecilUtility.Import(() => Console.WriteLine());
var subject = new ParameterDeducer(_instructionHelperMock.Object);
var result = subject.GetParameters(method, Enumerable.Empty <Instruction>());
Assert.AreEqual(0, result.Length);
}
public void Constructor_SetsProperties()
{
const int index = 42;
var type = CecilUtility.Import(typeof(string));
var subject = new Parameter(type, index);
Assert.AreSame(type, subject.ParameterType);
Assert.AreEqual(index, subject.Index);
}
static IReadOnlyList <TypeChanges> FindChanges(Stream stream1, Stream stream2)
{
var module1 = CecilUtility.ReadModule(stream1);
var module2 = CecilUtility.ReadModule(stream2);
FacadeModuleProcessor.MakePublicFacade(module1, keepInternalTypes: false);
FacadeModuleProcessor.MakePublicFacade(module2, keepInternalTypes: false);
return(ApiDiff.FindTypeChanges(module1, module2));
}
public void Accept_InlineFieldTokenOperand_InvokesVisitor()
{
FieldReference field = CecilUtility.Import(ReflectionUtility.GetField(() => OpCodes.Nop));
var instruction = Instruction.Create(OpCodes.Ldtoken, field);
_visitorMock
.Setup(visitor => visitor.VisitInlineTok(instruction, field))
.Returns(Unit.Value)
.Verifiable();
instruction.Accept(_visitorMock.Object);
_visitorMock.Verify();
}
public void Accept_ShortInlineVarOperand_InvokesVisitor()
{
var variable = new VariableDefinition(CecilUtility.Import(typeof(object)));
var instruction = Instruction.Create(OpCodes.Ldloc_S, variable);
_visitorMock
.Setup(visitor => visitor.VisitInlineVar(instruction, variable))
.Returns(Unit.Value)
.Verifiable();
instruction.Accept(_visitorMock.Object);
_visitorMock.Verify();
}
public void Accept_InlineTypeTokenOperand_InvokesVisitor()
{
TypeReference type = CecilUtility.Import(typeof(object));
var instruction = Instruction.Create(OpCodes.Ldtoken, type);
_visitorMock
.Setup(visitor => visitor.VisitInlineTok(instruction, type))
.Returns(Unit.Value)
.Verifiable();
instruction.Accept(_visitorMock.Object);
_visitorMock.Verify();
}
public void GetMatchingTargets_ReturnsOnlySetupsThatTargetQueriedMethod(int indexToTest)
{
ReadOnlyCollection <IRewriteTarget> setups = new List <IRewriteTarget>
{
TestDataFactory.CreateSetupTarget(() => Console.WriteLine()),
TestDataFactory.CreateSetupTarget(() => Console.ReadLine())
}.AsReadOnly();
var subject = new RewriteTargetMatcher(_methodImporterMock.Object, setups);
var result = subject.GetMatchingTargets(CecilUtility.Import(setups[indexToTest].Methods[0]));
Assert.AreEqual(setups[indexToTest], result.Single());
}
public void Accept_InlineMethodTokenOperand_InvokesVisitor()
{
var method = CecilUtility.Import(ReflectionUtility.GetMethod(() => Console.WriteLine()));
var instruction = Instruction.Create(OpCodes.Ldtoken, method);
_visitorMock
.Setup(visitor => visitor.VisitInlineTok(instruction, method))
.Returns(Unit.Value)
.Verifiable();
instruction.Accept(_visitorMock.Object);
_visitorMock.Verify();
}
public void Accept_InlineSigOperand_InvokesVisitor()
{
var callsite = new CallSite(CecilUtility.Import(typeof(object)));
var instruction = Instruction.Create(OpCodes.Calli, callsite);
_visitorMock
.Setup(visitor => visitor.VisitInlineSig(instruction, callsite))
.Returns(Unit.Value)
.Verifiable();
instruction.Accept(_visitorMock.Object);
_visitorMock.Verify();
}
public void GetMatchingTargets_ReturnsAllSetupsThatTargetQueriedMethod()
{
ReadOnlyCollection <IRewriteTarget> setups = new List <IRewriteTarget>
{
TestDataFactory.CreateSetupTarget(() => Console.WriteLine()),
TestDataFactory.CreateSetupTarget(() => Console.ReadLine()),
TestDataFactory.CreateSetupTarget(() => Console.WriteLine())
}.AsReadOnly();
var subject = new RewriteTargetMatcher(_methodImporterMock.Object, setups);
var result = subject.GetMatchingTargets(CecilUtility.Import(setups[0].Methods[0]));
Assert.AreEqual(2, result.Count());
Assert.IsTrue(result.All(setup => setup.Methods[0] == setups[0].Methods[0]));
}
public void VisitInlineArg_ByteArgument_EmitsInstruction()
{
var method = CecilUtility.Import(ReflectionUtility.GetMethod(() => int.Parse(string.Empty))).Resolve();
ParameterDefinition parameter = method.Parameters[0];
_generatorMock
.Setup(generator => generator.Emit(System.Reflection.Emit.OpCodes.Ldarg_S, (byte)parameter.Index))
.Verifiable();
var subject = new ILGeneratorInstructionVisitor(_generatorMock.Object);
var instruction = Instruction.Create(OpCodes.Ldarg_S, parameter);
subject.VisitInlineArg(instruction, parameter);
_generatorMock.Verify();
}
public void VisitInlineMethod_ConstructorOperand_EmitsInstruction()
{
var subject = new ILGeneratorInstructionVisitor(_generatorMock.Object);
_generatorMock
.Setup(generator => generator.Emit(
System.Reflection.Emit.OpCodes.Newobj,
It.Is <ConstructorInfo>(constructor => constructor.DeclaringType.Name == "MemoryStream")))
.Verifiable();
var method = ReflectionUtility.GetMethod(() => new MemoryStream());
var instruction = Instruction.Create(OpCodes.Newobj, CecilUtility.Import(method));
subject.VisitInlineMethod(instruction, (MethodReference)instruction.Operand);
_generatorMock.Verify();
}
public void GetMatcher_ReturnsMatcherForProvidedTargets()
{
var targets = new[]
{
TestDataFactory.CreateSetupTarget(() => Console.WriteLine()),
TestDataFactory.CreateSetupTarget(() => Console.ReadLine())
};
var subject = new RewriteTargetCollection(targets);
var matcher = subject.GetMatcher(TestDataFactory.CreateModuleDefinition());
var result0 = matcher.GetMatchingTargets(CecilUtility.Import(targets[0].Methods[0]));
var result1 = matcher.GetMatchingTargets(CecilUtility.Import(targets[1].Methods[0]));
Assert.AreEqual(targets[0], result0.Single());
Assert.AreEqual(targets[1], result1.Single());
}
public void VisitInlineField_EmitsInstruction()
{
TypeDefinition type = CecilUtility.Import(GetType()).Resolve();
FieldDefinition fieldDefinition = type.Fields.First(f => f.Name == "TestField");
var subject = new ILGeneratorInstructionVisitor(_generatorMock.Object);
_generatorMock
.Setup(generator => generator.Emit(
System.Reflection.Emit.OpCodes.Ldfld,
It.Is <FieldInfo>(field => field.Name == fieldDefinition.Name)))
.Verifiable();
var instruction = Instruction.Create(OpCodes.Ldfld, fieldDefinition);
subject.VisitInlineField(instruction, fieldDefinition);
_generatorMock.Verify();
}
public void Accepts_ModuleUnequalButSomeChildIsEqual_ReturnsTrue()
{
var query = CecilUtility.Import(typeof(object)).Resolve().Module;
var child = CecilUtility.Import(GetType()).Resolve().Module;
_moduleComparerMock.Setup(comparer => comparer.Equals(child, It.IsAny <ModuleReference>())).Returns(false);
_moduleComparerMock.Setup(comparer => comparer.Equals(
It.Is <ModuleReference>(module => IsAny(module, query, child)),
It.Is <ModuleReference>(module => IsAny(module, query, child))))
.Returns(true);
HashSet <DependencyGraphNode> nodes = new HashSet <DependencyGraphNode>();
nodes.Add(new DependencyGraphNode(child, _moduleComparerMock.Object));
_graphMock.SetupGet(graph => graph.Nodes).Returns(nodes);
var subject = new DirectReferencesModuleFilter(_graphMock.Object, _moduleComparerMock.Object);
bool result = subject.Accepts(query);
Assert.IsTrue(result);
}