Struct Comparison 

#[non_exhaustive]
pub struct Comparison {
    pub same_size: bool,
    pub over: u32,
    pub worst: u8,
    pub first: Option<(u32, u32)>,
    pub diff: Image,
    pub tolerance: Tolerance,
}

What compare found. Over pictures of different sizes, every field but same_size covers the top-left area both share.

Fields (Non-exhaustive)

Non-exhaustive structs could have additional fields added in future. Therefore, non-exhaustive structs cannot be constructed in external crates using the traditional Struct { .. } syntax; cannot be matched against without a wildcard ..; and struct update syntax will not work.

same_size: bool

Whether the two pictures are the same size.

over: u32

How many pixels differ by more than tolerance.channel in some colour channel (alpha is ignored: a window has none).

worst: u8

The largest difference in any colour channel of any pixel.

first: Option<(u32, u32)>

The first pixel counted in over, in row order.

diff: Image

The reference with every colour channel halved, and each pixel counted in over in MISSING_COLOR.

tolerance: Tolerance

The tolerance compared with.

Implementations

impl Comparison

pub fn passes(&self) -> bool

Whether the pictures match: the same size, and no more pixels over the tolerance than it allows.

Trait Implementations

impl Clone for Comparison

fn clone(&self) -> Comparison

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Comparison

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

Formats the value using the given formatter.

impl Eq for Comparison

impl PartialEq for Comparison

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for Comparison