bendns' repos / rust-analyzer
Unnamed repository; edit this file 'description' to name the repository.
Diffstat (limited to 'lib/text-size/tests/main.rs')
-rw-r--r--lib/text-size/tests/main.rs73
1 files changed, 73 insertions, 0 deletions
diff --git a/lib/text-size/tests/main.rs b/lib/text-size/tests/main.rs
new file mode 100644
index 0000000000..3288c27320
--- /dev/null
+++ b/lib/text-size/tests/main.rs
@@ -0,0 +1,73 @@
+use {std::ops, text_size::*};
+
+fn size(x: u32) -> TextSize {
+ TextSize::from(x)
+}
+
+fn range(x: ops::Range<u32>) -> TextRange {
+ TextRange::from(x)
+}
+
+#[test]
+fn sum() {
+ let xs: Vec<TextSize> = vec![size(0), size(1), size(2)];
+ assert_eq!(xs.iter().copied().sum::<TextSize>(), size(3));
+ assert_eq!(xs.into_iter().sum::<TextSize>(), size(3));
+}
+
+#[test]
+fn math() {
+ assert_eq!(size(10) + size(5), size(15));
+ assert_eq!(size(10) - size(5), size(5));
+}
+
+#[test]
+fn checked_math() {
+ assert_eq!(size(1).checked_add(size(1)), Some(size(2)));
+ assert_eq!(size(1).checked_sub(size(1)), Some(size(0)));
+ assert_eq!(size(1).checked_sub(size(2)), None);
+ assert_eq!(TextSize::MAX.checked_add(size(1)), None);
+}
+
+#[test]
+#[rustfmt::skip]
+fn contains() {
+ assert!( range(2..4).contains(range(2..3)));
+ assert!( ! range(2..4).contains(range(1..3)));
+}
+
+#[test]
+fn intersection() {
+ assert_eq!(
+ TextRange::intersection(range(1..2), range(2..3)),
+ Some(range(2..2))
+ );
+ assert_eq!(
+ TextRange::intersection(range(1..5), range(2..3)),
+ Some(range(2..3))
+ );
+ assert_eq!(TextRange::intersection(range(1..2), range(3..4)), None);
+}
+
+#[test]
+fn covering() {
+ assert_eq!(TextRange::covering(range(1..2), range(2..3)), range(1..3));
+ assert_eq!(TextRange::covering(range(1..5), range(2..3)), range(1..5));
+ assert_eq!(TextRange::covering(range(1..2), range(4..5)), range(1..5));
+}
+
+#[test]
+#[rustfmt::skip]
+fn contains_point() {
+ assert!( ! range(1..3).contains_exclusive(size(0)));
+ assert!( range(1..3).contains_exclusive(size(1)));
+ assert!( range(1..3).contains_exclusive(size(2)));
+ assert!( ! range(1..3).contains_exclusive(size(3)));
+ assert!( ! range(1..3).contains_exclusive(size(4)));
+
+ assert!( ! range(1..3).contains_inclusive(size(0)));
+ assert!( range(1..3).contains_inclusive(size(1)));
+ assert!( range(1..3).contains_inclusive(size(2)));
+ assert!( range(1..3).contains_inclusive(size(3)));
+ assert!( ! range(1..3).contains_inclusive(size(4)));
+}