Chore: Some small test fixes (#4713)

Signed-off-by: Connor Tsui <[email protected]>

Author: connortsui20

encodings/pco/src/test.rs

@@ -47,7 +47,7 @@ fn test_compress_decompress() {
 }
 
 #[test]
-fn test_compress_decompress_big() {
+fn test_compress_decompress_small() {
     let array = PrimitiveArray::from_option_iter([None, Some(1)]);
     let compressed = PcoArray::from_primitive(&array, 3, 0).unwrap();
     assert_eq!(compressed.scalar_at(0), Scalar::null_typed::<i32>());

vortex-array/src/arrays/bool/ops.rs

@@ -32,7 +32,7 @@ mod tests {
     use crate::ToCanonical;
 
     #[test]
-    fn test_slice_large() {
+    fn test_slice_hundred_elements() {
         let arr = BoolArray::from_iter(std::iter::repeat_n(Some(true), 100));
         let sliced_arr = arr.slice(8..16).to_bool();
         assert_eq!(sliced_arr.len(), 8);

vortex-array/src/arrays/list/compute/is_constant.rs

@@ -192,7 +192,7 @@ mod tests {
         (0..101).map(|i| (i * 2) as u32).collect(),
         false
     )]
-    fn test_large_list_is_constant(
+    fn test_list_is_constant_with_threshold(
         #[case] elements: Vec<i32>,
         #[case] offsets: Vec<u32>,
         #[case] expected: bool,

vortex-buffer/src/buffer.rs

@@ -617,7 +617,12 @@ mod test {
     fn slice_unaligned() {
         let buf = buffer![0i32, 1, 2, 3, 4].into_byte_buffer();
         // With a regular slice, this would panic. See [`slice_bad_alignment`].
-        buf.slice_unaligned(1..2);
+        let sliced = buf.slice_unaligned(1..2);
+        // Verify the slice has the expected length (1 byte from index 1 to 2).
+        assert_eq!(sliced.len(), 1);
+        // The original buffer has i32 values [0, 1, 2, 3, 4].
+        // In little-endian bytes, 0i32 = [0, 0, 0, 0], so byte at index 1 is 0.
+        assert_eq!(sliced.as_slice(), &[0]);
     }
 
     #[test]