Method check

std/src/gfx/lcd/buffered/testutils.rs:158–186

Validates recorded expectations about the changes made by all executed `op`s.

(self)

    /// Validates recorded expectations about the changes made by all executed `op`s.
    pub(super) fn check(self) {
        if self.exp_fb != self.buffered.fb {
            for y in 0..self.size.height {
                for x in 0..self.size.width {
                    let offset = (y * self.size.width + x) * 3;
                    let exp_pixel = &self.exp_fb[offset..offset + 3];
                    let pixel = &self.buffered.fb[offset..offset + 3];
                    if exp_pixel != pixel {
                        // Print the difference as a bunch of expect_pixel lines that can be
                        // copy-pasted into the code to re-define golden data.
                        eprintln!(
                            ".expect_pixel(xy({:3}, {:3}), ({:3}, {:3}, {:3}))  // got ({:3}, {:3}, {:3})",
                            x,
                            y,
                            pixel[0],
                            pixel[1],
                            pixel[2],
                            exp_pixel[0],
                            exp_pixel[1],
                            exp_pixel[2],
                        );
                    }
                }
            }
            panic!("Pixel contents differ; see output above");
        }
        assert_eq!(self.exp_damage, self.buffered.damage);
        assert_eq!(self.exp_ops, self.buffered.lcd.ops);
    }
}