public void ShouldMutateIfLevelIsEqual()
{
var originalNode = SyntaxFactory.BinaryExpression(SyntaxKind.AddExpression,
SyntaxFactory.LiteralExpression(SyntaxKind.NumericLiteralExpression, SyntaxFactory.Literal(1)),
SyntaxFactory.LiteralExpression(SyntaxKind.NumericLiteralExpression, SyntaxFactory.Literal(8)));
var target = new ExampleMutator(MutationLevel.Complete);
Should.Throw <NotImplementedException>(() => target.Mutate(originalNode, new StrykerOptions(mutationLevel: MutationLevel.Complete.ToString())));
}
public void Mutator_ShouldNotCallApplyMutations_OnWrongType()
{
// the type ReturnStatementSyntax should NOT be mutated
var originalNode = SyntaxFactory.ReturnStatement(SyntaxFactory.LiteralExpression(SyntaxKind.NumericLiteralExpression, SyntaxFactory.Literal(1)));
var target = new ExampleMutator(MutationLevel.Basic);
var result = target.Mutate(originalNode, new StrykerOptions());
result.ShouldBeEmpty();
}
public void Mutator_ShouldCallApplyMutations_OnExpectedType()
{
// the type BinaryExpressionSyntax should be mutated by the examplemutator
var originalNode = SyntaxFactory.BinaryExpression(SyntaxKind.AddExpression,
SyntaxFactory.LiteralExpression(SyntaxKind.NumericLiteralExpression, SyntaxFactory.Literal(1)),
SyntaxFactory.LiteralExpression(SyntaxKind.NumericLiteralExpression, SyntaxFactory.Literal(8)));
var target = new ExampleMutator(MutationLevel.Basic);
Should.Throw <NotImplementedException>(() => target.Mutate(originalNode, new StrykerOptions()));
}
public void ShouldNotMutateIfMutationLevelIsLow()
{
var originalNode = SyntaxFactory.BinaryExpression(SyntaxKind.AddExpression,
SyntaxFactory.LiteralExpression(SyntaxKind.NumericLiteralExpression, SyntaxFactory.Literal(1)),
SyntaxFactory.LiteralExpression(SyntaxKind.NumericLiteralExpression, SyntaxFactory.Literal(8)));
// The mutator is of level Expert
var target = new ExampleMutator(MutationLevel.Complete);
// The options level is Beginner
target.Mutate(originalNode, new StrykerOptions(mutationLevel: MutationLevel.Standard.ToString()));
// ApplyMutations should not have been called
}
