1 files changed, 31 insertions, 0 deletions
diff --git a/src/tools/clippy/tests/ui/large_digit_groups.rs b/src/tools/clippy/tests/ui/large_digit_groups.rs
new file mode 100644
index 000000000..ac116d5db
--- /dev/null
+++ b/src/tools/clippy/tests/ui/large_digit_groups.rs
@@ -0,0 +1,31 @@
+// run-rustfix
+#![warn(clippy::large_digit_groups)]
+
+fn main() {
+    macro_rules! mac {
+        () => {
+            0b1_10110_i64
+        };
+    }
+
+    let _good = (
+        0b1011_i64,
+        0o1_234_u32,
+        0x1_234_567,
+        1_2345_6789,
+        1234_f32,
+        1_234.12_f32,
+        1_234.123_f32,
+        1.123_4_f32,
+    );
+    let _bad = (
+        0b1_10110_i64,
+        0xd_e_adbee_f_usize,
+        1_23456_f32,
+        1_23456.12_f32,
+        1_23456.12345_f64,
+        1_23456.12345_6_f64,
+    );
+    // Ignore literals in macros
+    let _ = mac!();
+}