public void ShouldOnlyMutateChangedFiles()
{
// Arrange
var options = new StrykerOptions(diff: true);
var baselineProvider = new Mock <IBaselineProvider>();
var diffProvider = new Mock <IDiffProvider>(MockBehavior.Loose);
var branchProvider = new Mock <IGitInfoProvider>();
string myFile = Path.Combine("C:/test/", "myfile.cs");;
diffProvider.Setup(x => x.ScanDiff()).Returns(new DiffResult()
{
ChangedSourceFiles = new Collection <string>()
{
myFile
}
});
var target = new DiffMutantFilter(options, diffProvider.Object, baselineProvider.Object, branchProvider.Object);
var file = new CsharpFileLeaf {
FullPath = myFile
};
var mutant = new Mutant();
// Act
var filterResult = target.FilterMutants(new List <Mutant>()
{
mutant
}, file.ToReadOnly(), options);
// Assert
filterResult.ShouldContain(mutant);
}
public void FilterMutants_should_filter_included_and_excluded_files(
string[] patterns,
string filePath,
int spanStart,
int spanEnd,
bool shouldKeepFile)
{
// Arrange
var options = new StrykerOptions(mutate: patterns);
var file = new CsharpFileLeaf {
RelativePath = filePath, FullPath = Path.Combine("C:/test/", filePath)
};
// Create token with the correct text span
var syntaxToken = SyntaxFactory.Identifier(
new SyntaxTriviaList(Enumerable.Range(0, spanStart).Select(x => SyntaxFactory.Space)),
new string('a', spanEnd - spanStart),
SyntaxTriviaList.Empty);
var mutant = new Mutant
{
Mutation = new Mutation {
OriginalNode = SyntaxFactory.IdentifierName(syntaxToken)
}
};
var sut = new FilePatternMutantFilter();
// Act
var result = sut.FilterMutants(new[] { mutant }, file.ToReadOnly(), options);
// Assert
result.Contains(mutant).ShouldBe(shouldKeepFile);
}
public void ShouldNotFilterMutantsWhereCoveringTestsContainsChangedTestFile()
{
// Arrange
string testProjectPath = "C:/MyTests";
var options = new StrykerOptions();
var baselineProvider = new Mock <IBaselineProvider>();
var diffProvider = new Mock <IDiffProvider>(MockBehavior.Loose);
var branchProvider = new Mock <IGitInfoProvider>();
// If a file inside the test project is changed, a test has been changed
string myTest = Path.Combine(testProjectPath, "myTest.cs");;
diffProvider.Setup(x => x.ScanDiff()).Returns(new DiffResult()
{
ChangedSourceFiles = new Collection <string>()
{
myTest
},
ChangedTestFiles = new Collection <string>()
{
myTest
}
});
var target = new DiffMutantFilter(options, diffProvider.Object, baselineProvider.Object, branchProvider.Object);
// check the diff result for a file not inside the test project
var file = new CsharpFileLeaf {
FullPath = Path.Combine("C:/NotMyTests", "myfile.cs")
};
var mutant = new Mutant();
mutant.CoveringTests.Add(new TestDescription(Guid.NewGuid().ToString(), "name", myTest));
// Act
var filterResult = target.FilterMutants(new List <Mutant>()
{
mutant
}, file.ToReadOnly(), options);
// Assert
filterResult.ShouldContain(mutant);
}
