Add tests for indexing the generated SoA

tests/index.rs

@@ -0,0 +1,127 @@
+mod particles;
+use self::particles::{Particle, ParticleVec, ParticleRef};
+
+
+#[test]
+fn test_usize() {
+    let mut aos = Vec::new();
+    let mut soa = ParticleVec::new();
+
+    let particle = Particle::new(String::from("Na"), 56.0);
+    aos.push(particle.clone());
+    soa.push(particle.clone());
+
+    // SoaIndex
+    assert_eq!(soa.get(0).unwrap().name, &aos.get(0).unwrap().name);
+    assert_eq!(soa.get(0).unwrap().mass, &aos.get(0).unwrap().mass);
+    assert_eq!(aos.get(1), None);
+    assert_eq!(soa.get(1), None);
+
+    unsafe {
+        assert_eq!(soa.get_unchecked(0).name, &aos.get_unchecked(0).name);
+        assert_eq!(soa.get_unchecked(0).mass, &aos.get_unchecked(0).mass);
+    }
+
+    assert_eq!(soa.index(0).name, &aos[0].name);
+    assert_eq!(soa.index(0).mass, &aos[0].mass);
+
+
+    // SoaIndexMut
+    assert_eq!(soa.get_mut(0).unwrap().name, &aos.get_mut(0).unwrap().name);
+    assert_eq!(soa.get_mut(0).unwrap().mass, &aos.get_mut(0).unwrap().mass);
+    assert_eq!(aos.get_mut(1), None);
+    assert_eq!(soa.get_mut(1), None);
+
+    unsafe {
+        assert_eq!(soa.get_unchecked_mut(0).name, &aos.get_unchecked_mut(0).name);
+        assert_eq!(soa.get_unchecked_mut(0).mass, &aos.get_unchecked_mut(0).mass);
+    }
+
+    assert_eq!(soa.index_mut(0).name, &aos[0].name);
+    assert_eq!(soa.index_mut(0).mass, &aos[0].mass);
+
+
+    *soa.index_mut(0).mass -= 1.;
+    assert_eq!(soa.get(0).map(|p| *p.mass), Some(particle.mass - 1.));
+
+    *soa.get_mut(0).unwrap().mass += 1.;
+    assert_eq!(soa.get(0).map(|p| *p.mass), Some(particle.mass));
+}
+
+fn eq_its<'a, I1, I2>(i1: I1, i2: I2)
+where
+    I1: Iterator<Item = ParticleRef<'a>>,
+    I2: Iterator<Item = &'a Particle>,
+{
+    for (p1, p2) in i1.zip(i2) {
+        assert_eq!(*p1.mass, p2.mass);
+    }
+}
+
+#[test]
+fn test_ranges() {
+    let mut particles = Vec::new();
+    particles.push(Particle::new(String::from("Cl"), 1.0));
+    particles.push(Particle::new(String::from("Na"), 2.0));
+    particles.push(Particle::new(String::from("Br"), 3.0));
+    particles.push(Particle::new(String::from("Zn"), 4.0));
+
+    let mut soa = ParticleVec::new();
+
+    for particle in particles.iter() {
+        soa.push(particle.clone());
+    }
+
+    eq_its(soa.iter(), particles.iter());
+
+    // All tests from here are the same only changing the range
+
+    let range = 0..1;
+    eq_its(soa.get(range.clone()).unwrap().iter(), particles.get(range.clone()).unwrap().iter());
+    unsafe { eq_its(soa.get_unchecked(range.clone()).iter(), particles.get_unchecked(range.clone()).iter()); }
+    eq_its(soa.index(range.clone()).iter(), particles[range.clone()].iter());
+    eq_its(soa.get_mut(range.clone()).unwrap().iter(), particles.get(range.clone()).unwrap().iter());
+    unsafe { eq_its(soa.get_unchecked_mut(range.clone()).iter(), particles.get_unchecked(range.clone()).iter()); }
+    eq_its(soa.index_mut(range.clone()).iter(), particles[range.clone()].iter());
+
+    let range = ..3;
+    eq_its(soa.get(range.clone()).unwrap().iter(), particles.get(range.clone()).unwrap().iter());
+    unsafe { eq_its(soa.get_unchecked(range.clone()).iter(), particles.get_unchecked(range.clone()).iter()); }
+    eq_its(soa.index(range.clone()).iter(), particles[range.clone()].iter());
+    eq_its(soa.get_mut(range.clone()).unwrap().iter(), particles.get(range.clone()).unwrap().iter());
+    unsafe { eq_its(soa.get_unchecked_mut(range.clone()).iter(), particles.get_unchecked(range.clone()).iter()); }
+    eq_its(soa.index_mut(range.clone()).iter(), particles[range.clone()].iter());
+
+    let range = 1..;
+    eq_its(soa.get(range.clone()).unwrap().iter(), particles.get(range.clone()).unwrap().iter());
+    unsafe { eq_its(soa.get_unchecked(range.clone()).iter(), particles.get_unchecked(range.clone()).iter()); }
+    eq_its(soa.index(range.clone()).iter(), particles[range.clone()].iter());
+    eq_its(soa.get_mut(range.clone()).unwrap().iter(), particles.get(range.clone()).unwrap().iter());
+    unsafe { eq_its(soa.get_unchecked_mut(range.clone()).iter(), particles.get_unchecked(range.clone()).iter()); }
+    eq_its(soa.index_mut(range.clone()).iter(), particles[range.clone()].iter());
+
+    let range = ..;
+    eq_its(soa.get(range.clone()).unwrap().iter(), particles.get(range.clone()).unwrap().iter());
+    unsafe { eq_its(soa.get_unchecked(range.clone()).iter(), particles.get_unchecked(range.clone()).iter()); }
+    eq_its(soa.index(range.clone()).iter(), particles[range.clone()].iter());
+    eq_its(soa.get_mut(range.clone()).unwrap().iter(), particles.get(range.clone()).unwrap().iter());
+    unsafe { eq_its(soa.get_unchecked_mut(range.clone()).iter(), particles.get_unchecked(range.clone()).iter()); }
+    eq_its(soa.index_mut(range.clone()).iter(), particles[range.clone()].iter());
+
+    let range = 0..=1;
+    eq_its(soa.get(range.clone()).unwrap().iter(), particles.get(range.clone()).unwrap().iter());
+    unsafe { eq_its(soa.get_unchecked(range.clone()).iter(), particles.get_unchecked(range.clone()).iter()); }
+    eq_its(soa.index(range.clone()).iter(), particles[range.clone()].iter());
+    eq_its(soa.get_mut(range.clone()).unwrap().iter(), particles.get(range.clone()).unwrap().iter());
+    unsafe { eq_its(soa.get_unchecked_mut(range.clone()).iter(), particles.get_unchecked(range.clone()).iter()); }
+    eq_its(soa.index_mut(range.clone()).iter(), particles[range.clone()].iter());
+
+    let range = ..=2;
+    eq_its(soa.get(range.clone()).unwrap().iter(), particles.get(range.clone()).unwrap().iter());
+    unsafe { eq_its(soa.get_unchecked(range.clone()).iter(), particles.get_unchecked(range.clone()).iter()); }
+    eq_its(soa.index(range.clone()).iter(), particles[range.clone()].iter());
+    eq_its(soa.get_mut(range.clone()).unwrap().iter(), particles.get(range.clone()).unwrap().iter());
+    unsafe { eq_its(soa.get_unchecked_mut(range.clone()).iter(), particles.get_unchecked(range.clone()).iter()); }
+    eq_its(soa.index_mut(range.clone()).iter(), particles[range.clone()].iter());
+
+}