protected void Given_some_mutants_will_survive()
{
var baseSlnDir = Path.Combine(TestContext.CurrentContext.TestDirectory, "..", "..", "..", "..");
var survivingMutant = new SurvivingMutant
{
SourceFilePath = Path.Combine(baseSlnDir, "someclass.cs"),
SourceLine = 123,
OriginalLine = "a+b",
MutatedLine = "a-b"
};
MockMutationTestRunner
.Setup(r => r.Run(It.IsAny <Config>()))
.Callback(() =>
{
// Raise events that a real MutationTestRunner would raise.
var classFilePath = Path.Combine(baseSlnDir, "someclass.cs");
eventListener.BeginMutationOfFile(classFilePath, baseSlnDir, 0, 1);
eventListener.MemberMutating("System.Void SomeProject.SomeOtherNamespace.SomeClass::SomeMethod(System.Int32)");
eventListener.SyntaxNodeMutating(0, 1);
eventListener.MutantSurvived(survivingMutant);
eventListener.EndMutationOfFile(classFilePath);
})
.Returns(Task.FromResult(new MutationTestResult().WithSurvivingMutants(new [] { survivingMutant })));
}
public void Then_only_locally_modified_source_files_are_considered_for_mutation()
{
MockMutationTestRunner.Verify(r =>
r.Run(It.Is <Config>(c =>
c.LocallyModifiedSourceFiles.Length == 1 &&
c.LocallyModifiedSourceFiles.Single() == @"Implementation\PartiallyTestedNumberComparison.cs"
)));
}
protected void Given_mutation_testing_will_return_errors()
{
Given_a_valid_config_file();
MockMutationTestRunner
.Setup(r => r.Run(It.IsAny <Config>()))
.Returns(Task.FromResult(new MutationTestResult().WithError("an example error")));
}
public void Then_the_options_specified_in_the_config_file_are_used()
{
MockMutationTestRunner.Verify(x => x.Run(
It.Is <Config>(c =>
c.SolutionFilePath.EndsWith("../../../../../src/Examples/HasSurvivingMutants/HasSurvivingMutants.sln") &&
c.TestAssemblyFilePaths.Single().EndsWith($"../../../../../src/Examples/HasSurvivingMutants/Tests/bin/{BuildConfig.AsString}/HasSurvivingMutants.Tests.dll") &&
c.ProjectFilters.Single() == "HasSurvivingMutants.Implementation" &&
c.SourceFileFilters.Single() == "Implementation/*.cs" &&
c.CustomTestRunnerCommand == "src/Examples/HasSurvivingMutants/run-tests.bat arg=123"
)));
}
public void Then_mutation_testing_is_not_attempted()
{
MockMutationTestRunner.Verify(
mtr => mtr.Run(It.IsAny <Config>()),
Times.Never);
}
public void Then_mutation_testing_is_not_performed()
{
MockMutationTestRunner.Verify(x => x.Run(It.IsAny <Config>()), Times.Never);
}
public void Then_mutation_testing_is_still_performed()
{
MockMutationTestRunner.Verify(
mtr => mtr.Run(It.IsAny <Config>()),
Times.Once);
}
protected void Given_mutation_testing_will_throw_an_exception(Exception ex)
{
MockMutationTestRunner
.Setup(r => r.Run(It.IsAny <Config>()))
.Throws(ex);
}
protected void Given_no_mutants_will_survive()
{
MockMutationTestRunner
.Setup(r => r.Run(It.IsAny <Config>()))
.Returns(Task.FromResult(new MutationTestResult()));
}
public void Then_all_source_files_are_considered_for_mutation()
{
MockMutationTestRunner.Verify(r =>
r.Run(It.Is <Config>(c => c.LocallyModifiedSourceFiles == null)));
}
