From 9da37b8bd0795d92c3adb1ee123a29facefee99a Mon Sep 17 00:00:00 2001
From: elkowar <5300871+elkowar@users.noreply.github.com>
Date: Tue, 9 Aug 2022 12:41:02 +0200
Subject: [PATCH] Add lexer test for empty string interpolation

---
 crates/simplexpr/src/parser/lexer.rs                        | 1 +
 ...simplexpr__parser__lexer__test__empty_interpolation.snap | 6 ++++++
 2 files changed, 7 insertions(+)
 create mode 100644 crates/simplexpr/src/parser/snapshots/simplexpr__parser__lexer__test__empty_interpolation.snap

diff --git a/crates/simplexpr/src/parser/lexer.rs b/crates/simplexpr/src/parser/lexer.rs
index 937c806..4ced45c 100644
--- a/crates/simplexpr/src/parser/lexer.rs
+++ b/crates/simplexpr/src/parser/lexer.rs
@@ -317,5 +317,6 @@ mod test {
         weird_nesting => v!(r#"
             "${ {"hi": "ho"}.hi }".hi
         "#),
+        empty_interpolation   => v!(r#""${}""#),
     }
 }
diff --git a/crates/simplexpr/src/parser/snapshots/simplexpr__parser__lexer__test__empty_interpolation.snap b/crates/simplexpr/src/parser/snapshots/simplexpr__parser__lexer__test__empty_interpolation.snap
new file mode 100644
index 0000000..c28361d
--- /dev/null
+++ b/crates/simplexpr/src/parser/snapshots/simplexpr__parser__lexer__test__empty_interpolation.snap
@@ -0,0 +1,6 @@
+---
+source: crates/simplexpr/src/parser/lexer.rs
+assertion_line: 306
+expression: "v!(r#\"\"${}\"\"#)"
+---
+(0, StringLit([(0, Literal(""), 3), (3, Interp([]), 3), (3, Literal(""), 5)]), 5)