Add more tests

vulkano/src/buffer/cpu_access.rs

@@ -434,3 +434,17 @@ impl<'a, T: ?Sized + 'a> DerefMut for WriteLock<'a, T> {
         self.inner.deref_mut()
     }
 }
+
+#[cfg(test)]
+mod tests {
+    use buffer::{CpuAccessibleBuffer, BufferUsage};
+
+    #[test]
+    fn create_empty_buffer() {
+        let (device, queue) = gfx_dev_and_queue!();
+
+        const EMPTY: [i32; 0] = [];
+
+        CpuAccessibleBuffer::from_data(device, BufferUsage::all(), Some(queue.family()), EMPTY.iter());
+    }
+}

vulkano/src/buffer/immutable.rs

@@ -655,6 +655,13 @@ mod tests {
             .then_signal_fence_and_flush().unwrap();
     }
 
+    #[test]
+    fn create_buffer_zero_size_data() {
+        let (device, queue) = gfx_dev_and_queue!();
+
+        ImmutableBuffer::from_data((), BufferUsage::all(), Some(queue.family()), queue.clone());
+    }
+
     // TODO: write tons of tests that try to exploit loopholes
     // this isn't possible yet because checks aren't correctly implemented yet
 }