public void DoMutate_Returns_Correct_Replacements_For_Addition()
{
var assembly = CreateTestAssembly(OpCodes.Add);
var addMethod = assembly.MainModule
.Types.Single(t => t.Name == "TestClass")
.Methods.Single(t => t.Name == "TestMethod");
string tempAssemblyFileName = GetTempAssemblyFileName();
assembly.Write(tempAssemblyFileName);
var module = new Module(tempAssemblyFileName);
var mutator = new ArithmeticOperatorTurtle();
IEnumerable<MutantMetaData> mutations = mutator
.Mutate(addMethod, module, addMethod.Body.Instructions.Select(i => i.Offset).ToArray());
int sub = 0;
int mul = 0;
int div = 0;
int rem = 0;
int total = 0;
foreach (var metaData in mutations)
{
total++;
if (metaData.MethodDefinition.Body.Instructions.Any(i => i.OpCode == OpCodes.Sub)) sub++;
if (metaData.MethodDefinition.Body.Instructions.Any(i => i.OpCode == OpCodes.Mul)) mul++;
if (metaData.MethodDefinition.Body.Instructions.Any(i => i.OpCode == OpCodes.Div)) div++;
if (metaData.MethodDefinition.Body.Instructions.Any(i => i.OpCode == OpCodes.Rem)) rem++;
}
Assert.AreEqual(4, total);
Assert.AreEqual(1, sub);
Assert.AreEqual(1, mul);
Assert.AreEqual(1, div);
Assert.AreEqual(1, rem);
}
public void DoMutate_Returns_Correct_Replacements_For_Division_And_Describes_Appropriately()
{
var assembly = CreateTestAssembly(OpCodes.Div);
var divideMethod = assembly.MainModule
.Types.Single(t => t.Name == "TestClass")
.Methods.Single(t => t.Name == "TestMethod");
string tempAssemblyFileName = GetTempAssemblyFileName();
assembly.Write(tempAssemblyFileName);
var module = new Module(tempAssemblyFileName);
var mutator = new ArithmeticOperatorTurtle();
IEnumerable<MutantMetaData> mutations = mutator
.Mutate(divideMethod, module, divideMethod.Body.Instructions.Select(i => i.Offset).ToArray());
int add = 0;
int sub = 0;
int mul = 0;
int rem = 0;
int total = 0;
foreach (var metaData in mutations)
{
total++;
add += MatchReplacement(metaData, OpCodes.Div, OpCodes.Add);
sub += MatchReplacement(metaData, OpCodes.Div, OpCodes.Sub);
mul += MatchReplacement(metaData, OpCodes.Div, OpCodes.Mul);
rem += MatchReplacement(metaData, OpCodes.Div, OpCodes.Rem);
}
Assert.AreEqual(4, total);
Assert.AreEqual(1, add);
Assert.AreEqual(1, sub);
Assert.AreEqual(1, mul);
Assert.AreEqual(1, rem);
}