Struct MutationStatusCounts 

pub struct MutationStatusCounts {
    pub total: usize,
    pub killed: usize,
    pub timeout: usize,
    pub survived: usize,
    pub no_coverage: usize,
    pub runtime_error: usize,
    pub flaky: usize,
    pub pruned: usize,
    pub pending: usize,
    pub equivalent: usize,
    pub compile_error: usize,
}

The number of mutants for each status, and the mutation score.

Fields

total: usize

Each mutant.

killed: usize

Killed mutants.

timeout: usize

Mutants that passed their timeout.

survived: usize

Mutants that each covering test let pass.

no_coverage: usize

Mutants that no test reaches.

runtime_error: usize

Mutants with a runner fault.

flaky: usize

Mutants where the second run in a new companion changed whether the tests detect the mutant.

pruned: usize

Mutants that a static rule removed.

pending: usize

Mutants that did not run.

equivalent: usize

Mutants that a verdict marks as equivalent.

compile_error: usize

Survived mutants that do not type-check. A report from a version before --typecheck has no such field, so it reads as 0.

Implementations

impl MutationStatusCounts

pub const fn executed(&self) -> usize

The mutants that ran against the tests: killed, timeout, survived, runtime_error, flaky and compile_error.

pub const fn add(&mut self, status: MutantStatus)

Adds one mutant with status.

pub const fn remove(&mut self, status: MutantStatus)

Removes one mutant with status. The count never goes below zero.

pub fn score(&self) -> Option<f64>

The mutation score over the executed mutants: (killed + timeout) / (killed + timeout + survived), from 0 to 1. None when no mutant ran to a tested result.

no_coverage mutants stay out of the score; MutationSummary::coverage reports them. Runtime errors, flaky, pruned, pending, equivalent and compile-error mutants never count.

Trait Implementations

impl Clone for MutationStatusCounts

fn clone(&self) -> Self

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for MutationStatusCounts

impl Debug for MutationStatusCounts

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for MutationStatusCounts

fn default() -> Self

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for MutationStatusCounts

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for MutationStatusCounts

impl PartialEq for MutationStatusCounts

fn eq(&self, other: &Self) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl Serialize for MutationStatusCounts

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for MutationStatusCounts