public void ShouldNotMutateEmptyInitializer()
{
var arrayCreationExpression = SyntaxFactory.ParseExpression("new int[] { }") as ArrayCreationExpressionSyntax;
var implicitArrayCreationExpression = SyntaxFactory.ParseExpression("new int[] { }") as ArrayCreationExpressionSyntax;
var target = new ArrayCreationMutator();
var result1 = target.ApplyMutations(arrayCreationExpression);
var result2 = target.ApplyMutations(implicitArrayCreationExpression);
result1.ShouldBeEmpty();
result2.ShouldBeEmpty();
}
public void ShouldNotRemoveValuesFromImplicitArrayCreation()
{
var expressionSyntax = SyntaxFactory.ParseExpression("new [] { 1, 3 }") as ImplicitArrayCreationExpressionSyntax;
var target = new ArrayCreationMutator();
var result = target.ApplyMutations(expressionSyntax);
result.ShouldBeEmpty();
}
public void ShouldMutateStackallocArrays()
{
var stackallocArrayCreationExpression = SyntaxFactory.ParseExpression("stackalloc int[] { 1 }") as StackAllocArrayCreationExpressionSyntax;
var target = new ArrayCreationMutator();
var result = target.ApplyMutations(stackallocArrayCreationExpression);
var mutation = result.ShouldHaveSingleItem();
mutation.DisplayName.ShouldBe("Array initializer mutation");
var replacement = mutation.ReplacementNode.ShouldBeOfType <StackAllocArrayCreationExpressionSyntax>();
replacement.Initializer.Expressions.ShouldBeEmpty();
}
public void ShouldRemoveValuesFromArrayCreation()
{
var expressionSyntax = SyntaxFactory.ParseExpression("new int[] { 1, 3 }") as ArrayCreationExpressionSyntax;
var target = new ArrayCreationMutator();
var result = target.ApplyMutations(expressionSyntax);
var mutation = result.ShouldHaveSingleItem();
mutation.DisplayName.ShouldBe("Array initializer mutation");
var replacement = mutation.ReplacementNode.ShouldBeOfType <ArrayCreationExpressionSyntax>();
replacement.Initializer.Expressions.ShouldBeEmpty();
}