1 files changed, 15 insertions, 0 deletions

diff --git a/crates/test_utils/src/lib.rs b/crates/test_utils/src/lib.rs
index fce4fd6bf..bd017567c 100644
--- a/crates/test_utils/src/lib.rs
+++ b/crates/test_utils/src/lib.rs
@@ -96,6 +96,21 @@ pub enum RangeOrOffset {
     Offset(TextSize),
 }
 
+impl RangeOrOffset {
+    pub fn expect_offset(self) -> TextSize {
+        match self {
+            RangeOrOffset::Offset(it) => it,
+            RangeOrOffset::Range(_) => panic!("expected an offset but got a range instead"),
+        }
+    }
+    pub fn expect_range(self) -> TextRange {
+        match self {
+            RangeOrOffset::Range(it) => it,
+            RangeOrOffset::Offset(_) => panic!("expected a range but got an offset"),
+        }
+    }
+}
+
 impl From<RangeOrOffset> for TextRange {
     fn from(selection: RangeOrOffset) -> Self {
         match selection {