From cbb0c532e27f135c7a8599bc79e3a07721fa7b2a Mon Sep 17 00:00:00 2001 From: Rico Riedel Date: Fri, 5 Aug 2022 19:06:17 +0200 Subject: [PATCH] Add invert unit tests --- src/pattern/mod.rs | 3 ++- src/transform/invert.rs | 58 +++++++++++++++++++++++++++++++++++++++++ 2 files changed, 60 insertions(+), 1 deletion(-) diff --git a/src/pattern/mod.rs b/src/pattern/mod.rs index 764a047..96b1b77 100644 --- a/src/pattern/mod.rs +++ b/src/pattern/mod.rs @@ -10,12 +10,13 @@ pub use wheel::*; use crate::Vector; -#[derive(Copy, Clone, PartialEq, Debug)] +#[derive(Copy, Clone, Default, PartialEq, Debug)] pub struct Config { pub size: Vector, pub step: f32, } +#[cfg_attr(test, mockall::automock)] pub trait PatternFactory { fn create(&self, config: &Config) -> Box; } diff --git a/src/transform/invert.rs b/src/transform/invert.rs index 4f092f0..7744d4e 100644 --- a/src/transform/invert.rs +++ b/src/transform/invert.rs @@ -25,3 +25,61 @@ impl Pattern for Invert { 1.0 - self.child.sample(pos) } } + +#[cfg(test)] +mod test { + use super::*; + use crate::MockPatternFactory; + use mockall::predicate::eq; + + #[test] + fn create_config_correct() { + let input = Config { + size: Vector::new(4.0, 2.0), + step: 0.4, + }; + let mut output = input.clone(); + output.step = 0.6; + + let mut child = MockPatternFactory::new(); + child + .expect_create() + .with(eq(output)) + .once() + .returning(|_| Box::new(MockPattern::new())); + + InvertFactory::new(Box::new(child)).create(&input); + } + + #[test] + fn sample_inverted() { + let mut child = MockPatternFactory::new(); + child.expect_create().returning(|_| { + let mut sampler = MockPattern::new(); + sampler.expect_sample().return_const(0.7); + Box::new(sampler) + }); + + let sampler = InvertFactory::new(Box::new(child)).create(&Config::default()); + + assert_eq!(0.3, sampler.sample(Vector::default())); + } + + #[test] + fn sample_pos_correct() { + let mut child = MockPatternFactory::new(); + child.expect_create().once().returning(|_| { + let mut sampler = MockPattern::new(); + sampler + .expect_sample() + .with(eq(Vector::new(4.0, 2.0))) + .once() + .return_const(0.0); + Box::new(sampler) + }); + + let sampler = InvertFactory::new(Box::new(child)).create(&Config::default()); + + sampler.sample(Vector::new(4.0, 2.0)); + } +}