public void ShouldNotMutateUppercaseString()
{
var node = SyntaxFactory.MemberAccessExpression(
SyntaxKind.SimpleMemberAccessExpression,
SyntaxFactory.IdentifierName("String"),
SyntaxFactory.IdentifierName("Empty"));
var mutator = new StringEmptyMutator();
var result = mutator.ApplyMutations(node).ToList();
result.ShouldBeEmpty();
}
public void ShouldNotMutateUppercaseString()
{
// Arrange
var node = SyntaxFactory.MemberAccessExpression(
SyntaxKind.SimpleMemberAccessExpression,
SyntaxFactory.IdentifierName("String"),
SyntaxFactory.IdentifierName("Empty"));
var mutator = new StringEmptyMutator();
// Act
var result = mutator.ApplyMutations(node).ToList();
// Assert
result.ShouldNotContain(
m => m.ReplacementNode is LiteralExpressionSyntax &&
((LiteralExpressionSyntax)m.ReplacementNode).Token.ValueText == "Stryker was here!");
}
public void ShouldMutateLowercaseString()
{
var node = SyntaxFactory.MemberAccessExpression(
SyntaxKind.SimpleMemberAccessExpression,
SyntaxFactory.PredefinedType(
SyntaxFactory.Token(SyntaxKind.StringKeyword)),
SyntaxFactory.IdentifierName("Empty"));
var mutator = new StringEmptyMutator();
var result = mutator.ApplyMutations(node).ToList();
var mutation = result.ShouldHaveSingleItem();
mutation.DisplayName.ShouldBe("String mutation");
var replacement = mutation.ReplacementNode.ShouldBeOfType <LiteralExpressionSyntax>();
replacement.Token.ValueText.ShouldBe("Stryker was here!");
}
public void ShouldBeMutationLevelStandard()
{
var target = new StringEmptyMutator();
target.MutationLevel.ShouldBe(MutationLevel.Standard);
}
