1 files changed, 37 insertions, 0 deletions

diff --git a/crates/ra_editor/src/test_utils.rs b/crates/ra_editor/src/test_utils.rs
new file mode 100644
index 000000000..c4ea4db6c
--- /dev/null
+++ b/crates/ra_editor/src/test_utils.rs
@@ -0,0 +1,37 @@
+use ra_syntax::{File, TextUnit, TextRange};
+pub use _test_utils::*;
+use LocalEdit;
+
+pub fn check_action<F: Fn(&File, TextUnit) -> Option<LocalEdit>> (
+    before: &str,
+    after: &str,
+    f: F,
+) {
+    let (before_cursor_pos, before) = extract_offset(before);
+    let file = File::parse(&before);
+    let result = f(&file, before_cursor_pos).expect("code action is not applicable");
+    let actual = result.edit.apply(&before);
+    let actual_cursor_pos = match result.cursor_position {
+        None => result.edit.apply_to_offset(before_cursor_pos).unwrap(),
+        Some(off) => off,
+    };
+    let actual = add_cursor(&actual, actual_cursor_pos);
+    assert_eq_text!(after, &actual);
+}
+
+pub fn check_action_range<F: Fn(&File, TextRange) -> Option<LocalEdit>> (
+    before: &str,
+    after: &str,
+    f: F,
+) {
+    let (range, before) = extract_range(before);
+    let file = File::parse(&before);
+    let result = f(&file, range).expect("code action is not applicable");
+    let actual = result.edit.apply(&before);
+    let actual_cursor_pos = match result.cursor_position {
+        None => result.edit.apply_to_offset(range.start()).unwrap(),
+        Some(off) => off,
+    };
+    let actual = add_cursor(&actual, actual_cursor_pos);
+    assert_eq_text!(after, &actual);
+}