velvia commented on a change in pull request #8688:
URL: https://github.com/apache/arrow/pull/8688#discussion_r525621539
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File path: rust/arrow/src/compute/kernels/boolean.rs
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@@ -457,4 +516,20 @@ mod tests {
assert_eq!(true, res.value(2));
assert_eq!(false, res.value(3));
}
+
+ #[test]
+ fn test_nullif_int_array() {
+ let a = Int32Array::from(vec![Some(15), None, Some(8), Some(1),
Some(9)]);
+ let comp =
+ BooleanArray::from(vec![Some(false), None, Some(true),
Some(false), None]);
+ let res = nullif(&a, &comp).unwrap();
+
+ assert_eq!(15, res.value(0));
+ assert_eq!(true, res.is_null(1));
+ assert_eq!(true, res.is_null(2)); // comp true, slot 2 turned into null
+ assert_eq!(1, res.value(3));
+ // Even though comp array / right is null, should still pass through
original value
+ assert_eq!(9, res.value(4));
+ assert_eq!(false, res.is_null(4)); // comp true, slot 2 turned into
null
Review comment:
Actually I'm going to borrow `assert_array_eq` from the expressions.rs
test.
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