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.rs67
1 files changed, 67 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..a7eef0a2cd
--- /dev/null
+++ b/lib/text-size/tests/main.rs
@@ -0,0 +1,67 @@
+use text_size::*;
+
+fn r(from: u32, to: u32) -> TextRange {
+ TextRange::from(from..to)
+}
+
+#[test]
+fn sum() {
+ let xs: Vec<TextSize> = vec![0.into(), 1.into(), 2.into()];
+ assert_eq!(xs.iter().sum::<TextSize>(), 3.into());
+ assert_eq!(xs.into_iter().sum::<TextSize>(), 3.into());
+}
+
+#[test]
+fn math() {
+ let range = r(10, 20);
+ assert_eq!(range + 5, r(15, 25));
+ assert_eq!(range - 5, r(5, 15));
+}
+
+#[test]
+fn checked_math() {
+ let x: TextSize = 1.into();
+ assert_eq!(x.checked_sub(1), Some(0.into()));
+ assert_eq!(x.checked_sub(2), None);
+
+ assert_eq!(r(1, 2).checked_sub(1), Some(r(0, 1)));
+ assert_eq!(x.checked_sub(2), None);
+}
+
+#[test]
+fn contains() {
+ let r1 = r(2, 4);
+ let r2 = r(2, 3);
+ let r3 = r(1, 3);
+ assert!(r1.contains(r2));
+ assert!(!r1.contains(r3));
+}
+
+#[test]
+fn intersection() {
+ assert_eq!(TextRange::intersection(r(1, 2), r(2, 3)), Some(r(2, 2)));
+ assert_eq!(TextRange::intersection(r(1, 5), r(2, 3)), Some(r(2, 3)));
+ assert_eq!(TextRange::intersection(r(1, 2), r(3, 4)), None);
+}
+
+#[test]
+fn covering() {
+ assert_eq!(TextRange::covering(r(1, 2), r(2, 3)), r(1, 3));
+ assert_eq!(TextRange::covering(r(1, 5), r(2, 3)), r(1, 5));
+ assert_eq!(TextRange::covering(r(1, 2), r(4, 5)), r(1, 5));
+}
+
+#[test]
+fn contains_point() {
+ assert!(!r(1, 3).contains_point(0));
+ assert!(r(1, 3).contains_point(1));
+ assert!(r(1, 3).contains_point(2));
+ assert!(!r(1, 3).contains_point(3));
+ assert!(!r(1, 3).contains_point(4));
+
+ assert!(!r(1, 3).contains_point_inclusive(0));
+ assert!(r(1, 3).contains_point_inclusive(1));
+ assert!(r(1, 3).contains_point_inclusive(2));
+ assert!(r(1, 3).contains_point_inclusive(3));
+ assert!(!r(1, 3).contains_point_inclusive(4));
+}