rust-postgres/tests/types/range.rs

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use std::i32;
use postgres::types::range::{RangeBound,
Range,
Inclusive,
Exclusive,
UpperBound,
LowerBound,
Normalizable,
BoundType};
#[test]
fn test_range_bound_lower_lt() {
fn check(val1: int, inc1: BoundType, val2: int, inc2: BoundType, expected: bool) {
let a: RangeBound<LowerBound, int> = RangeBound::new(val1, inc1);
let b: RangeBound<LowerBound, int> = RangeBound::new(val2, inc2);
assert_eq!(expected, a < b);
}
check(1, Inclusive, 2, Exclusive, true);
check(1, Exclusive, 2, Inclusive, true);
check(1, Inclusive, 1, Exclusive, true);
check(2, Inclusive, 1, Inclusive, false);
check(2, Exclusive, 1, Exclusive, false);
check(1, Exclusive, 1, Inclusive, false);
check(1, Exclusive, 1, Exclusive, false);
check(1, Inclusive, 1, Inclusive, false);
}
#[test]
fn test_range_bound_upper_lt() {
fn check(val1: int, inc1: BoundType, val2: int, inc2: BoundType, expected: bool) {
let a: RangeBound<UpperBound, int> = RangeBound::new(val1, inc1);
let b: RangeBound<UpperBound, int> = RangeBound::new(val2, inc2);
assert_eq!(expected, a < b);
}
check(1, Inclusive, 2, Exclusive, true);
check(1, Exclusive, 2, Exclusive, true);
check(1, Exclusive, 1, Inclusive, true);
check(2, Inclusive, 1, Inclusive, false);
check(2, Exclusive, 1, Exclusive, false);
check(1, Inclusive, 1, Exclusive, false);
check(1, Inclusive, 1, Inclusive, false);
check(1, Exclusive, 1, Exclusive, false);
}
#[test]
fn test_range_bound_lower_in_bounds() {
fn check(bound: int, inc: BoundType, val: int, expected: bool) {
let b: RangeBound<LowerBound, int> = RangeBound::new(bound, inc);
assert_eq!(expected, b.in_bounds(&val));
}
check(1, Inclusive, 1, true);
check(1, Exclusive, 1, false);
check(1, Inclusive, 2, true);
check(1, Inclusive, 0, false);
}
#[test]
fn test_range_bound_upper_in_bounds() {
fn check(bound: int, inc: BoundType, val: int, expected: bool) {
let b: RangeBound<UpperBound, int> = RangeBound::new(bound, inc);
assert_eq!(expected, b.in_bounds(&val));
}
check(1, Inclusive, 1, true);
check(1, Exclusive, 1, false);
check(1, Inclusive, 2, false);
check(1, Inclusive, 0, true);
}
#[test]
fn test_range_contains() {
let r = range!('[' 1i32, 3i32 ']');
assert!(!r.contains(&4));
assert!(r.contains(&3));
assert!(r.contains(&2));
assert!(r.contains(&1));
assert!(!r.contains(&0));
let r = range!('(' 1i32, 3i32 ')');
assert!(!r.contains(&4));
assert!(!r.contains(&3));
assert!(r.contains(&2));
assert!(!r.contains(&1));
assert!(!r.contains(&0));
let r = range!('(', 3i32 ']');
assert!(!r.contains(&4));
assert!(r.contains(&2));
assert!(r.contains(&i32::MIN));
let r = range!('[' 1i32, ')');
assert!(r.contains(&i32::MAX));
assert!(r.contains(&4));
assert!(!r.contains(&0));
let r = range!('(', ')');
assert!(r.contains(&i32::MAX));
assert!(r.contains(&0i32));
assert!(r.contains(&i32::MIN));
}
#[test]
fn test_normalize_lower() {
let r: RangeBound<LowerBound, i32> = RangeBound::new(10i32, Inclusive);
assert_eq!(RangeBound::new(10i32, Inclusive), Normalizable::normalize(r));
let r: RangeBound<LowerBound, i32> = RangeBound::new(10i32, Exclusive);
assert_eq!(RangeBound::new(11i32, Inclusive), Normalizable::normalize(r));
}
#[test]
fn test_normalize_upper() {
let r: RangeBound<UpperBound, i32> = RangeBound::new(10i32, Inclusive);
assert_eq!(RangeBound::new(11i32, Exclusive), Normalizable::normalize(r));
let r: RangeBound<UpperBound, i32> = RangeBound::new(10i32, Exclusive);
assert_eq!(RangeBound::new(10i32, Exclusive), Normalizable::normalize(r));
}
#[test]
fn test_range_normalizes() {
let r1 = range!('(' 10i32, 15i32 ']');
let r2 = range!('[' 11i32, 16i32 ')');
assert_eq!(r1, r2);
}
#[test]
fn test_range_empty() {
assert!((range!('(' 9i32, 10i32 ')')).is_empty());
assert!((range!('[' 10i32, 10i32 ')')).is_empty());
assert!((range!('(' 10i32, 10i32 ']')).is_empty());
assert!((range!('[' 10i32, 9i32 ']')).is_empty());
}
#[test]
fn test_intersection() {
let r1 = range!('[' 10i32, 15i32 ')');
let r2 = range!('(' 20i32, 25i32 ']');
assert!(r1.intersect(&r2).is_empty());
assert!(r2.intersect(&r1).is_empty());
assert_eq!(r1, r1.intersect(&range!('(', ')')));
assert_eq!(r1, (range!('(', ')')).intersect(&r1));
let r2 = range!('(' 10i32, ')');
let exp = Range::new(r2.lower().map(|v| v.clone()),
r1.upper().map(|v| v.clone()));
assert_eq!(exp, r1.intersect(&r2));
assert_eq!(exp, r2.intersect(&r1));
let r2 = range!('(', 15i32 ']');
assert_eq!(r1, r1.intersect(&r2));
assert_eq!(r1, r2.intersect(&r1));
let r2 = range!('[' 11i32, 14i32 ')');
assert_eq!(r2, r1.intersect(&r2));
assert_eq!(r2, r2.intersect(&r1));
}
#[test]
fn test_union() {
let r1 = range!('[' 10i32, 15i32 ')');
let r2 = range!('(' 20i32, 25i32 ']');
assert_eq!(None, r1.union(&r2));
assert_eq!(None, r2.union(&r1));
let r2 = range!('(', ')');
assert_eq!(Some(r2), r1.union(&r2));
assert_eq!(Some(r2), r2.union(&r1));
let r2 = range!('[' 13i32, 50i32 ')');
assert_eq!(Some(range!('[' 10i32, 50i32 ')')), r1.union(&r2));
assert_eq!(Some(range!('[' 10i32, 50i32 ')')), r2.union(&r1));
let r2 = range!('[' 3i32, 50i32 ')');
assert_eq!(Some(range!('[' 3i32, 50i32 ')')), r1.union(&r2));
assert_eq!(Some(range!('[' 3i32, 50i32 ')')), r2.union(&r1));
let r2 = range!('(', 11i32 ')');
assert_eq!(Some(range!('(', 15i32 ')')), r1.union(&r2));
assert_eq!(Some(range!('(', 15i32 ')')), r2.union(&r1));
let r2 = range!('(' 11i32, ')');
assert_eq!(Some(range!('[' 10i32, ')')), r1.union(&r2));
assert_eq!(Some(range!('[' 10i32, ')')), r2.union(&r1));
let r2 = range!('(' 15i32, 20i32 ')');
assert_eq!(None, r1.union(&r2));
assert_eq!(None, r2.union(&r1));
let r2 = range!('[' 15i32, 20i32 ']');
assert_eq!(Some(range!('[' 10i32, 20i32 ']')), r1.union(&r2));
assert_eq!(Some(range!('[' 10i32, 20i32 ']')), r2.union(&r1));
}
#[test]
fn test_contains_range() {
assert!(Range::<i32>::empty().contains_range(&Range::empty()));
let r1 = range!('[' 10i32, 15i32 ')');
assert!(r1.contains_range(&r1));
let r2 = range!('(' 10i32, ')');
assert!(!r1.contains_range(&r2));
assert!(!r2.contains_range(&r1));
let r2 = range!('(', 15i32 ']');
assert!(!r1.contains_range(&r2));
assert!(r2.contains_range(&r1));
}